{"id":665,"date":"2026-06-22T09:25:14","date_gmt":"2026-06-22T09:25:14","guid":{"rendered":"https:\/\/farm-balers.com\/?p=665"},"modified":"2026-06-22T10:20:08","modified_gmt":"2026-06-22T10:20:08","slug":"how-japanese-rice-farms-use-small-round-balers-for-straw-residue-management","status":"publish","type":"post","link":"https:\/\/farm-balers.com\/vi\/application\/how-japanese-rice-farms-use-small-round-balers-for-straw-residue-management\/","title":{"rendered":"How Japanese Rice Farms Use Small Round Balers for Straw Residue Management"},"content":{"rendered":"
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Rice Straw Baling | Agricultural Insight<\/p>\n

An in-depth technical and practical guide covering machine construction, material science, regional regulations, and equipment selection for paddy straw baling in East Asian rice agriculture.<\/p>\n

Updated 2026 \u00a0|\u00a0 Korea & Japan Rice Farm Focus \u00a0|\u00a0 10+ min read<\/div>\n<\/div>\n<\/div>\n
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1. Why Rice Straw Management Has Become a Priority<\/h2>\n

Across Japan’s paddy landscape \u2014 from the Niigata plains to the fields of Kyushu \u2014 the question of what to do with rice straw after harvest is no longer a matter left to tradition. Decades ago, farmers burned straw in the field as a matter of routine. Today, that option is largely banned or heavily restricted. The shift has forced both large-scale operations and small family farms to rethink the entire post-harvest workflow, and for many, the answer has come in the form of the small round baler<\/strong>. These machines, compact enough to be pulled by a 40 to 60 horsepower tractor and agile enough to navigate narrow paddy field headlands, have quietly transformed how rice straw is collected, stored, and utilized across the country.<\/p>\n

The motivation is partly regulatory, partly economic. Rice straw \u2014 or “wara” in Japanese \u2014 is no longer viewed purely as a residue. It is a feedstock for livestock bedding, a substrate for mushroom cultivation, a raw material for biomass energy plants, and increasingly, a compostable soil amendment that earns farmers carbon credit points under new agricultural sustainability frameworks. Getting the straw off the field quickly after threshing, before autumn rains degrade it, is critical. A well-specified m\u00e1y \u00e9p ki\u1ec7n tr\u00f2n<\/strong> operating alongside a combine harvester or standalone in a follow-up pass can convert loose windrows into weather-resistant round bales within minutes \u2014 bales that can be stored outdoors for weeks or transported to processing facilities without significant dry matter loss.<\/p>\n

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2. The Rice Straw Challenge \u2014 Agronomy Meets Engineering<\/h2>\n

Rice straw presents a handling profile that is fundamentally different from wheat straw or hay. Its silica content is exceptionally high \u2014 sometimes above 15% of dry weight \u2014 which makes it highly abrasive against steel pickup tines and compression rollers. In harvesting conditions typical to Japan’s harvest season (September through November), straw moisture content can range from 18% in sunny Tohoku weather to over 35% in humid Kyushu or after unseasonal rain. High-moisture straw does not flow through a round baler’s compression chamber the same way dry hay does: it tends to clump around tines, resist rotation inside the chamber, and create uneven bale cores that can collapse during transport.<\/p>\n

The paddy field itself adds further complexity. Japanese rice paddies are typically small, often under one hectare per plot, and are separated by narrow irrigation bunds. This means a small round baler<\/strong> must be able to turn within a short headland, ideally with a total machine length under five meters and a turning radius suited to a compact utility tractor. The baler also needs a pickup width wide enough to collect straw that has been laid in slightly irregular windrows by a combine harvester \u2014 but not so wide that it cannot clear the bund edges on tight turns. Finding that mechanical balance is what separates purpose-fit machines from repurposed hay balers that struggle in paddy conditions.<\/p>\n

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\n
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Silica Abrasion<\/div>\n

Rice straw silica content (10\u201315% DM) wears pickup tines 3\u20134\u00d7 faster than wheat straw. Hardened spring tines and roller surface hardening are essential specification points.<\/p>\n<\/div>\n

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Narrow Field Geometry<\/div>\n

Average Japanese paddy plot is 0.3\u20131.0 ha with bund-to-bund widths as narrow as 20 m. Baler + tractor total length must stay under 8\u20139 m for safe headland turns.<\/p>\n<\/div>\n

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Moisture Window<\/div>\n

Ideal baling moisture is below 20%. In wet harvest years, farmers must either wait and risk further degradation or bale wetter and accept reduced bale shelf life without silage wrap.<\/p>\n<\/div>\n

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Value Chain Logistics<\/div>\n

Bales are sold at 1,500\u20134,000 JPY per bale to livestock farms and biomass plants. Transport economics favor compact bale sizes (80\u2013110 cm diameter) for standard flatbed trucks.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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3. Manufacturing Structure of Small Round Balers for Rice Straw<\/h2>\n

A round baler designed or adapted for rice straw is not structurally identical to a standard hay baler. The engineering differences are meaningful, and understanding them is essential for procurement teams evaluating machines for paddy applications. The key structural subsystems \u2014 pickup, feeder, compression chamber, wrapping mechanism, and drive train \u2014 each require specific engineering treatment to cope with straw’s peculiar characteristics.<\/p>\n

Pickup Mechanism<\/h3>\n

The pickup assembly is the baler’s first point of contact with the crop. On machines designed for paddy straw, the pickup width is typically set between 1,900 mm and 2,400 mm \u2014 wide enough to sweep a combine windrow cleanly without double-passing. The tine bars are mounted on a rotating cam-follower or, in more advanced designs, on a camless axial-flow carrier. The camless design, used on models like the 9YG-1.0 series, eliminates the most common wear point in paddy applications: the cam track itself, which gets clogged by silica-laden straw fragments and requires frequent cleaning in high-yield operations. Spring tines made from high-carbon steel with surface hardening extend service life significantly. Some manufacturers offer optional tine sets in stainless or boron-treated steel specifically for high-silica crops.<\/p>\n

Feeder and Compression Chamber<\/h3>\n

After pickup, straw must be channeled into the compression chamber without plugging. Paddy straw’s tendency to tangle and clump means a feeder with active crop control is preferred. The auger-plus-roller feeder system, used in models like the 9YG-1.25 series, combines a helical auger that moves crop laterally toward the center with a set of aggressive feed rollers that push crop into the chamber opening. Fixed-chamber designs with a set of 16\u201318 steel rollers (diameter around 222 mm each) form the bale by rotating the crop against the chamber walls. The sensor-controlled density monitoring system continuously measures bale growth inside the chamber and signals the operator when the target diameter is reached \u2014 typically 1,000\u20131,300 mm for paddy straw applications in Japan, where smaller bales are preferred for handling and transport.<\/p>\n

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Drive Train and Gearbox<\/h3>\n

The round baler gearbox is the component most frequently underspecified in budget models and most frequently blamed for field failures. In paddy straw operations, the gearbox must handle repeated shock loads \u2014 moments when a clump of wet straw suddenly enters the chamber and creates a torque spike in the drivetrain. Heavy-duty gearboxes rated for 55\u2013100 kW of input power, like those used in the 9YG-2.24D series, are dimensioned with safety factors appropriate for variable-density crop inputs. The twin-axle gearbox design used in some models allows 90-degree rotation to either side, enabling the tractor-baler combination to navigate paddy headlands without disengaging the PTO \u2014 a significant operational advantage when every minute counts during a narrow harvest window. Power output shaft speed is typically 540 r\/min (matching standard tractor PTO), with some models also supporting 720 r\/min for higher throughput.<\/p>\n

Net-Wrapping System<\/h3>\n

Net wrapping is now the standard in Japan over twine for paddy straw, primarily because it creates a tighter, more weather-resistant surface that protects bales stored outdoors between harvest and collection. The automatic net wrapping mechanism winds a pre-set number of net layers around the bale as it rotates \u2014 usually 2\u20133 wraps \u2014 before cutting and sealing. Net consumption of around 2,000 meters per bale at 1.0\u20131.4 meter width corresponds to typical specifications in this class of machines. The wrapping speed affects cycle time between bales significantly: faster wrapping means the tractor can move sooner, important when working against incoming rain.<\/p>\n<\/div>\n

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4. Material System: Structural Steel, Chain, and Surface Treatment<\/h2>\n

The material choices in a round baler designed for paddy straw are not incidental \u2014 they directly determine maintenance intervals, total cost of ownership, and the machine’s ability to withstand Japan’s humid climate between seasons. When procurement specialists or dealers evaluate machines for this application, material quality is one of the first technical questions they should raise with the manufacturer.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nMaterial Specification<\/th>\nRelevance to Paddy Straw<\/th>\n<\/tr>\n<\/thead>\n
Main Frame<\/td>\nQ345B \/ S355 structural steel, welded<\/td>\nHigh yield-strength to absorb shock from field obstacles (rice bund edges, irrigation channels)<\/td>\n<\/tr>\n
Pickup Tines<\/td>\n65Mn spring steel, induction-hardened tips<\/td>\nResists silica abrasion; spring action allows tines to deflect over hard obstacles without permanent deformation<\/td>\n<\/tr>\n
Compression Rollers<\/td>\nDuctile cast iron core, spiral groove surface<\/td>\nSpiral surface pattern improves crop grip and prevents slippage on wet or flat straw; cast iron resists wear well<\/td>\n<\/tr>\n
Drive Chain (Rear Chamber)<\/td>\n20A or 16A heavy-duty roller chain (double-side sprocket)<\/td>\nHeavier chain specification handles the higher compressive loads created by high-silica, high-friction straw<\/td>\n<\/tr>\n
Hydraulic System Fittings<\/td>\nH-type compression sleeve fittings (stainless insert)<\/td>\nHigher burst-pressure rating enables faster tailgate open\/close cycles; reduces vibration damage during operation<\/td>\n<\/tr>\n
External Body Panels<\/td>\n3 mm cold-rolled steel, electrostatic powder coat<\/td>\nPowder coat outperforms wet paint in high-humidity paddy environments; protects against corrosion between seasons<\/td>\n<\/tr>\n
Gearbox Housing<\/td>\nNodular cast iron (GGG-40 \/ QT450)<\/td>\nHigh damping capacity absorbs impact load from straw slug ingestion; maintains dimensional accuracy over long service<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Beyond the above, manufacturers producing machines intended for the East Asian agricultural market increasingly apply anti-corrosion treatments to internal chain housings and gearbox mounting brackets. Japan’s coastal farmland in areas like Kochi Prefecture or Saga Prefecture is exposed to salt-laden air that accelerates corrosion on unprotected carbon steel surfaces. Requesting a factory specification sheet that details the surface treatment process \u2014 including pre-treatment phosphate wash, primer layer thickness, and topcoat UV resistance \u2014 is a reasonable due-diligence step for buyers in these regions.<\/p>\n<\/div>\n

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5. How Japanese Rice Farms Integrate Round Balers in the Post-Harvest Workflow<\/h2>\n

The typical Japanese rice harvest workflow begins with the combine harvester cutting the standing crop and discharging cut straw behind in a loose windrow. In some combine configurations, the straw is chopped and spread evenly across the field \u2014 in which case a rake or tedder is needed to consolidate it into a pickable windrow before the round baler arrives. Once the straw is in a defined windrow, the tractor-baler combination moves through the field at 5\u201320 km\/h depending on straw density and baler capacity, producing bales at a rate of 40\u201380 bales per hour. The completed bales roll off the rear of the machine and sit on the field surface. A bale transport machine \u2014 either a simple bale spear on the tractor front loader or a dedicated bale carrier \u2014 then moves bales to the field edge for stacking and eventual truck loading.<\/p>\n

The entire post-harvest operation must typically be completed within a two-to-five day window between the combine’s pass and the onset of the next rain event or the preparation for winter cover cropping. This tight scheduling means that the round baler’s throughput, expressed in bales per hour, is not an abstract performance number \u2014 it is a direct determinant of whether the straw gets off the field or not. Farms that run two or three plots in different locations often share a single round baler between plots, further compressing the working schedule and making machine reliability (zero unplanned downtime) a primary selection criterion over outright lowest purchase cost.<\/p>\n

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Step 1<\/div>\n
Combine harvests rice, discharges straw windrow<\/div>\n<\/div>\n
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Step 2<\/div>\n
Windrow consolidated with rake if straw spread<\/div>\n<\/div>\n
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Step 3<\/div>\n
Round baler makes pass, bales ejected at rate of 40\u2013100\/hr<\/div>\n<\/div>\n
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Step 4<\/div>\n
Bales transported to edge, stacked for collection<\/div>\n<\/div>\n<\/div>\n
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6. Recommended Round Baler Models for Rice Straw Applications<\/h2>\n

The following models cover the full range from compact small round balers suited to 40 HP tractors to high-capacity units for large paddy operations. All parameters are from the manufacturer’s published product specifications.<\/p>\n

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\n\"9YG-1.0
\n<\/a><\/p>\n
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Small Round Baler<\/div>\n

9YG-1.0 Round Baler<\/h3>\n

Purpose-engineered for small-horsepower operations. The axial-flow semi-forced feeding system reduces blockage by 50% compared to traditional cam-track pickups \u2014 critical for sticky wet rice straw.<\/p>\n\n\n\n\n\n\n\n
Chi\u1ec1u r\u1ed9ng xe b\u00e1n t\u1ea3i<\/td>\n1,900 mm<\/td>\n<\/tr>\n
Bale Size (D\u00d7W)<\/td>\n\u00d81,100\u00d71,000 mm<\/td>\n<\/tr>\n
Power Req.<\/td>\n48\u201380 kW<\/td>\n<\/tr>\n
N\u0103ng su\u1ea5t<\/td>\n40\u2013100 bales\/hr<\/td>\n<\/tr>\n
Rollers<\/td>\n16 \u00d7 \u00d8222 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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\n\"M\u00e1y
\n<\/a><\/p>\n
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Small Round Baler<\/div>\n

M\u00e1y \u00e9p ki\u1ec7n tr\u00f2n 9YG-1.0C<\/h3>\n

Features dual-side 16A heavy-duty chains for high compression pressure. Front-and-rear chamber chain drive creates denser, more uniform bales from lightweight straw materials including paddy residue.<\/p>\n\n\n\n\n\n\n\n
Chi\u1ec1u r\u1ed9ng xe b\u00e1n t\u1ea3i<\/td>\n2,400 mm<\/td>\n<\/tr>\n
Bale Size (D\u00d7W)<\/td>\n\u00d81,000\u00d71,250 mm<\/td>\n<\/tr>\n
Power Req.<\/td>\n\u226569.8 kW \/ 95 HP<\/td>\n<\/tr>\n
N\u0103ng su\u1ea5t<\/td>\n40\u201380 bales\/hr<\/td>\n<\/tr>\n
Lo\u1ea1i xe b\u00e1n t\u1ea3i<\/td>\nHammer-claw type<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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\n\"M\u00e1y
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Mid-Range Baler<\/div>\n

M\u00e1y \u00e9p ki\u1ec7n tr\u00f2n 9YG-1.25<\/h3>\n

Interchangeable pickup system \u2014 standard spring-tine for hay or optional hammer-claw for standing corn stalks and dense rice straw. Auger + toothed roller feeder delivers consistent intake volume even in irregular windrows.<\/p>\n\n\n\n\n\n\n\n
Chi\u1ec1u r\u1ed9ng xe b\u00e1n t\u1ea3i<\/td>\n2,240 mm<\/td>\n<\/tr>\n
Bale Size (D\u00d7W)<\/td>\n\u00d81,200\u00d71,250 mm<\/td>\n<\/tr>\n
Power Req.<\/td>\n\u226588.2 kW \/ 120 HP<\/td>\n<\/tr>\n
N\u0103ng su\u1ea5t<\/td>\n40\u201380 bales\/hr<\/td>\n<\/tr>\n
M\u1eadt \u0111\u1ed9 ki\u1ec7n<\/td>\n115\u2013200 kg\/m\u00b3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

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\n\"M\u00e1y
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Mid-Range Baler<\/div>\n

M\u00e1y \u00e9p ki\u1ec7n tr\u00f2n 9YG-1.25A<\/h3>\n

Sensor-controlled bale density monitoring with PTO shaft speed flexibility from 540 to 1,000 r\/min. An adaptable choice for farms that run multiple crop types across the season beyond just rice straw.<\/p>\n\n\n\n\n\n\n\n
Chi\u1ec1u r\u1ed9ng xe b\u00e1n t\u1ea3i<\/td>\n2,150 mm<\/td>\n<\/tr>\n
Bale Size (D\u00d7W)<\/td>\n\u00d81,300\u00d71,250 mm<\/td>\n<\/tr>\n
Power Req.<\/td>\n\u226575 kW<\/td>\n<\/tr>\n
T\u1ed1c \u0111\u1ed9 PTO<\/td>\n540\u20131,000 r\/min<\/td>\n<\/tr>\n
L\u01b0\u1edbi b\u1ecdc<\/td>\n2,000\u00d71.25 m\/bale<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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\n\"M\u00e1y
\n<\/a><\/p>\n
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High-Capacity<\/div>\n

M\u00e1y \u00e9p ki\u1ec7n tr\u00f2n 9YG-2.24D<\/h3>\n

Axial-flow semi-forced feed system with proprietary exclusive intellectual property \u2014 reduces blockage while increasing intake volume by nearly double compared to standard designs. Suited for larger paddy operations handling multiple plots.<\/p>\n\n\n\n\n\n\n\n
Chi\u1ec1u r\u1ed9ng xe b\u00e1n t\u1ea3i<\/td>\n2,240 mm<\/td>\n<\/tr>\n
Bale Size (D\u00d7W)<\/td>\n\u00d81,300\u00d71,400 mm<\/td>\n<\/tr>\n
Power Req.<\/td>\n55\u2013100 kW<\/td>\n<\/tr>\n
N\u0103ng su\u1ea5t<\/td>\n40\u2013100 bales\/hr<\/td>\n<\/tr>\n
Rollers<\/td>\n18 \u00d7 \u00d8222 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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\n\"9YG-2.24D
\n<\/a><\/p>\n
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Premium S9000<\/div>\n

9YG-2.24D (S9000) Round Baler<\/h3>\n

The S9000 variant introduces a proprietary twin-universal-joint driveshaft and safety torque limiter that protects the drivetrain during shock-load events \u2014 turning in tight paddy headlands at full PTO without power interruption.<\/p>\n\n\n\n\n\n\n\n
Max Torque<\/td>\n1,000 Nm<\/td>\n<\/tr>\n
Steering Angle<\/td>\n100\u00b0 lateral \/ 30\u00b0 lean<\/td>\n<\/tr>\n
Power Req.<\/td>\n55\u2013100 kW<\/td>\n<\/tr>\n
Weight<\/td>\n4,262 kg<\/td>\n<\/tr>\n
M\u1eadt \u0111\u1ed9 ki\u1ec7n<\/td>\n100\u2013200 kg\/m\u00b3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Xem s\u1ea3n ph\u1ea9m<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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7. Regulatory Framework: Japan, South Korea, and Beyond<\/h2>\n

Understanding the legal and regulatory environment in which paddy straw round balers operate is increasingly important for both farmers and equipment suppliers. The regulatory picture has shifted substantially over the past decade, driven by air quality policy, agricultural mechanization incentive programs, and growing pressure on the agricultural sector to reduce its carbon footprint. The following overview covers the principal regulatory contexts relevant to Japan and South Korea \u2014 the two largest rice-producing markets in Northeast Asia where small round balers are most widely adopted \u2014 and touches on relevant frameworks in other key regions.<\/p>\n

Japan<\/h3>\n

Open-field burning of rice straw is regulated under Japan’s Air Pollution Control Act and the Waste Management and Public Cleansing Act . While not an absolute blanket ban at the national level, municipal and prefectural governments \u2014 particularly in Niigata, Akita, Miyagi, and Fukuoka \u2014 have enacted near-total bans on agricultural waste burning. Violations carry fines of up to 300,000 JPY per incident. On the positive side, the Ministry of Agriculture, Forestry and Fisheries (MAFF) operates a direct subsidy program under the “Agri-Innovation Program”\u00a0 that covers a portion of the purchase cost of certified baling machinery when used for residue management and biomass energy supply chains. To qualify, machines typically must be registered in the agricultural machinery database maintained by the Agriculture, Forestry and Fisheries Research Council and meet specified performance thresholds.<\/p>\n

South Korea (\ud55c\uad6d)<\/h3>\n

South Korea’s rice straw management regulatory environment has tightened significantly since the \ub18d\uc5c5\uae30\uacc4\ud654 \ucd09\uc9c4\ubc95 (Agricultural Mechanization Promotion Act) was last revised. The Environment Ministry’s enforcement of the Clean Air Conservation Act (\ub300\uae30\ud658\uacbd\ubcf4\uc804\ubc95) classifies open burning of agricultural residues as a source of fine particulate matter (PM2.5) and has progressively restricted it. Following severe yellow dust and fine dust episodes in the 2010s, authorities in Jeolla, Chungcheong, and Gyeonggi provinces moved to restrict residue burning, particularly during fall harvest season (October\u2013November). Meanwhile, the Rural Development Administration (\ub18d\ucd0c\uc9c4\ud765\uccad, RDA) actively promotes mechanized straw collection through the \ub18d\uae30\uacc4 \uad6c\uc785\uc790\uae08 \uc735\uc790 program, offering low-interest loans (typically 1.5\u20132.0% per annum) for qualifying agricultural machinery including round balers. The Korea Agricultural Machinery Industry Cooperative (\ud55c\uad6d\ub18d\uae30\uacc4\uacf5\uc5c5\ud611\ub3d9\uc870\ud569) sets domestic machinery safety and performance standards, and imported machines seeking to qualify for subsidy programs may require third-party certification under Korean Agricultural Machinery Standard (KS B 6007 and related standards).<\/p>\n

China<\/h3>\n

In China, round baler use for paddy straw has expanded rapidly following the national “Straw Comprehensive Utilization” policy framework . National and provincial prohibitions on field burning under the Air Pollution Prevention and Control Action Plan create strong demand for mechanical baling alternatives. Agricultural machines registered in the National Agricultural Machinery Purchase Subsidy Catalog are eligible for direct subsidies of 10\u201330% of purchase price. The 9YG series machines manufactured under the FASCAR brand are listed in this national catalog, making them accessible to Chinese farmers through the subsidy system.<\/p>\n

European Union<\/h3>\n

EU member states that produce significant rice \u2014 primarily Spain (Valencian Community, Ebro Delta), Italy (Po Valley), and Portugal \u2014 regulate agricultural machinery safety under Machinery Directive 2006\/42\/EC. For CE-marked agricultural balers exported into EU markets, compliance with EN ISO 11684 (safety signs), EN 703 (agricultural machinery safety), and UNECE machinery transport regulations applies. Field burning is broadly prohibited across the EU under the Common Agricultural Policy’s Good Agricultural and Environmental Conditions (GAEC) requirements.<\/p>\n

Vietnam and Southeast Asia<\/h3>\n

Vietnam’s Ministry of Agriculture and Rural Development (MARD) has issued guidance under Resolution 01\/NQ-CP discouraging straw burning in the Mekong Delta and Red River Delta, where rice is double- or triple-cropped annually. The mechanized baling market here is still early-stage but growing rapidly, driven partly by a domestic biomass energy sector that pays farmers for baled rice straw. Machinery safety requirements in Vietnam fall under TCVN national standards, and imported balers typically pass through technical inspection at the Ministry of Transport testing centers.<\/p>\n

<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Region<\/th>\nBurn Restriction<\/th>\nMachinery Subsidy<\/th>\nKey Standard \/ Law<\/th>\n<\/tr>\n<\/thead>\n
Japan<\/td>\nPrefectural bans; fines up to 300,000 JPY<\/td>\nMAFF Agri-Innovation subsidy<\/td>\nAir Pollution Control Act; Waste Management Act<\/td>\n<\/tr>\n
H\u00e0n Qu\u1ed1c<\/td>\nProvincial bans (Oct\u2013Nov peak); PM2.5 enforcement<\/td>\nRDA low-interest machinery loans (1.5\u20132.0%)<\/td>\nClean Air Conservation Act; KS B 6007<\/td>\n<\/tr>\n
China<\/td>\nNational prohibition; local enforcement varies<\/td>\n10\u201330% purchase subsidy via national catalog<\/td>\nAir Pollution Prevention Action Plan<\/td>\n<\/tr>\n
European Union<\/td>\nBroadly prohibited under GAEC \/ CAP rules<\/td>\nRural Development Funds; member-state agri-schemes<\/td>\nMachinery Directive 2006\/42\/EC; CE marking<\/td>\n<\/tr>\n
Vietnam<\/td>\nMARD guidance against burning; not yet fully enforced<\/td>\nBiomass purchase schemes from processors<\/td>\nTCVN standards; MARD Resolution 01\/NQ-CP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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8. How to Select the Right Small Round Baler for Paddy Straw<\/h2>\n

The process of choosing a round baler for rice straw baling is more nuanced than reading a capacity chart. Farms differ in tractor power availability, field geometry, downstream straw use, and whether the machine needs to handle other crops through the rest of the year. The following framework helps procurement teams and farm managers narrow down their selection to the models that will actually deliver value over a five-to-ten year service life.<\/p>\n

\n
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Tractor Power Match<\/div>\n

Match the baler’s minimum power requirement to your available tractor PTO output. Allow a 15\u201320% headroom \u2014 for example, a baler rated at 48 kW minimum should be paired with a 60+ kW tractor in dense paddy conditions. For small round baler applications on 40 HP tractors, the 9YG-1.0 series is specifically engineered for this bracket.<\/p>\n<\/div>\n

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Field Size and Turning Space<\/div>\n

For plots under 0.5 ha with headland widths below 15 m, the 9YG-1.0 and 9YG-1.0C compact models (operating weight 2,640\u20133,198 kg, total machine length under 4 m) are the practical choice. Larger models are suited to consolidated paddy fields of 1 ha or more where turning is less constrained.<\/p>\n<\/div>\n

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Downstream Use of Straw<\/div>\n

Livestock bedding buyers prefer dense bales (150\u2013200 kg\/m\u00b3). Biomass plants accept a wider density range but prefer consistent bale dimensions for automated handling. If straw goes to mushroom cultivation substrates, moisture content at baling matters more than density \u2014 plan to bale at under 20% moisture and seek models with reliable density sensor control.<\/p>\n<\/div>\n

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Multi-Crop Versatility<\/div>\n

If the machine will be used for hay production or corn stalk baling outside of the rice harvest season, select a model with interchangeable pickup systems (spring-tine and hammer-claw), such as the 9YG-1.25 series. This versatility spreads the machine’s capital cost across more annual operating hours, improving payback period significantly.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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9. Round Baler Gearbox and Drive System: A Closer Look<\/h2>\n

C\u00e1i round baler gearbox<\/a> deserves dedicated attention because it is both the most mechanically stressed component in the machine and the one most frequently underspecified by budget-tier manufacturers. In paddy straw applications, the gearbox experiences a cyclical pattern of torque: relatively low load during windrow pickup, rising load as the bale core builds, and peak torque during compression of the outer bale layers where material is most densely packed. Superimposed on this cycle are sudden spike loads when the combine leaves an uneven windrow \u2014 a thick section creates an instantaneous intake surge that travels through the feeder into the compression chamber and back through the PTO shaft to the gearbox.<\/p>\n

\"9YG-2.24D-Round<\/p>\n

Premium models in this segment use a heavy-duty twin-clutch gearbox design that allows 90-degree lateral rotation of the PTO shaft \u2014 the key advantage when navigating narrow paddy headlands at turning radii that would otherwise require the operator to stop, disengage the PTO, and restart after the turn. This continuous-power turning capability is a genuine field-productivity feature, not merely a marketing claim, and it translates directly into fewer bale ejection interruptions per hour. The 9YG-2.24D S9000 series implements this through a dual-axle gearbox rigidly integrated with the drawbar frame \u2014 a configuration that avoids the torque-induced drawbar cracking seen on competing designs that mount the gearbox independently.<\/p>\n

\"9YG-2.24D<\/div>\n<\/div>\n

<\/p>\n

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10. What Happens to the Baled Rice Straw? End-Use Markets<\/h2>\n

A round baler without a buyer for the bales it produces is only half a solution. Japanese farmers who have successfully integrated small round balers into their operations have done so because viable straw markets exist \u2014 and understanding those markets helps configure the baling operation for maximum value capture. The key end markets vary significantly in what they demand from the bales themselves, which in turn affects ideal bale specifications at the point of baling.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
End Market<\/th>\nBale Requirements<\/th>\nApproximate Value (Japan)<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
Livestock Bedding<\/td>\nDry (<20% moisture), dense, net-wrapped<\/td>\n1,500\u20132,500 JPY\/bale<\/td>\nLargest volume market; cattle and horse farms<\/td>\n<\/tr>\n
Biomass Energy<\/td>\nAny moisture up to 30%; consistent dimensions<\/td>\n2,000\u20134,000 JPY\/bale (at plant gate)<\/td>\nGrowing market; biomass power plants under FIT policy<\/td>\n<\/tr>\n
Mushroom Substrate<\/td>\nClean straw, low soil contamination, medium density<\/td>\n2,000\u20133,500 JPY\/bale<\/td>\nPremium market; requires certified pesticide-free straw<\/td>\n<\/tr>\n
Soil Amendment \/ Compost<\/td>\nLower density acceptable; any moisture<\/td>\n800\u20131,500 JPY\/bale<\/td>\nLowest value; often local and direct from farm<\/td>\n<\/tr>\n
Export (Korea, China)<\/td>\nHigh density, consistent dimensions, phytosanitary cert.<\/td>\n3,000\u20135,000 JPY\/bale FOB<\/td>\nGrowing; requires phytosanitary compliance and declaration<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

<\/p>\n

\n

11. Maintenance Considerations for Paddy Straw Balers<\/h2>\n

Paddy straw is harder on baler components than most other crops, and a maintenance approach calibrated to that fact pays dividends over the machine’s service life. The following are the most critical maintenance points for round balers operating in rice straw applications across Japan and Korea’s humid environments.<\/p>\n

Pickup tine inspection should occur every 50\u201380 bale-hours of operation during the rice harvest season, with attention to tip wear, tine straightness, and spring tension. In high-silica straw, tine tips wear at rates of 1\u20132 mm per 100 hours, and a tine set worn below its minimum tip length causes inefficient pickup that increases field losses. Drive chain tension on both the feeder and rear chamber chain sets should be checked after the first 5 hours of seasonal operation and then every 30 hours thereafter. The H-type hydraulic fitting connections on the tailgate cylinder should be inspected for micro-cracks during each pre-season service \u2014 these fittings carry the full load of bale ejection thousands of times per season and are subject to fatigue cracking if the machine experiences rough terrain operation.<\/p>\n

Gearbox oil level and condition should be checked at the start and end of each harvest season. Use the oil grade specified by the manufacturer \u2014 typically GL-4 or GL-5 gear oil at 80W-90 or 85W-140 viscosity. In Japan’s harvest season temperatures (15\u201325\u00b0C), standard mineral oil performs adequately, but operations in warmer climates or with extended daily hours may benefit from a synthetic gear oil that resists viscosity breakdown under sustained load. Finally, clean the entire machine thoroughly with compressed air and water before off-season storage, paying particular attention to the spaces between roller sets where damp straw fragments can accumulate and create rust pockets over winter.<\/p>\n

\"9YG-1.25A<\/div>\n<\/div>\n

<\/p>\n

\n

Frequently Asked Questions<\/h2>\n
\n
\nQ1. What is the best small round baler for a Japanese paddy farm operating a 40 HP tractor with multiple small plots under one hectare each?<\/summary>\n
The 9YG-1.0 series is specifically engineered for tractors in the 48\u201380 kW (64\u2013107 HP) range and was developed with small-plot operations in mind. Its compact dimensions (3,750 \u00d7 2,300 \u00d7 2,020 mm in working state) and bale output of up to 100 bales per hour make it well suited to multi-plot rotation schedules where speed and maneuverability are both essential.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ2. How does a round baler gearbox handle the load from wet or dense rice straw, and what should I look for in a supplier’s gearbox specification when requesting a quote?<\/summary>\n
Look for gearboxes rated at or above the machine’s full PTO input power (not just average load), and ask for the gearbox’s rated input torque in Nm. For 55\u2013100 kW balers, minimum gearbox rated torque should be above 800 Nm to provide adequate shock-load margin. Confirm the material specification (nodular cast iron housing, hardened gear teeth) and the service interval. Models like the 9YG-2.24D S9000 specify a rated input torque of 1,000 Nm, which provides meaningful safety margin for high-density paddy straw intake.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ3. Where can South Korean rice farmers find a reliable round baler supplier or dealer who provides after-sales service and spare round baler parts support in Korea?<\/summary>\n
South Korean buyers should first confirm that the machine model is importable under Korean Agricultural Machinery Standard (KS B 6007) and whether the supplier maintains a warehouse of critical spare round baler parts \u2014 including pickup tines, drive chains, and hydraulic seals \u2014 in or near Korea. Ask for a reference list of existing Korean customers and confirm parts lead times from the manufacturer before placing a purchase order. Most reputable suppliers operating in the Korean market aim for critical parts delivery within 5\u201310 business days.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ4. What is the typical cost range for a mini round baler suitable for rice straw in Japan, and are there government subsidies that can reduce the purchase cost?<\/summary>\n
We do not publish pricing on this page as it varies by market, currency, and current import conditions. Contact us directly at the link above for a current quotation. Regarding subsidies: in Japan, MAFF’s Agri-Innovation Program and prefectural-level mechanization support programs may cover a portion of eligible round baler purchases. In South Korea, the RDA machinery loan program (\ub18d\uae30\uacc4 \uad6c\uc785\uc790\uae08 \uc735\uc790) provides low-interest financing. Eligibility conditions change annually \u2014 consult the relevant government agency or an accredited local dealer who handles subsidy paperwork.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ5. How does the round baler application for rice straw differ from its use in hay baling, and what machine adjustments are needed when switching between the two?<\/summary>\n
Rice straw requires slower pickup drum speed to reduce silica-induced tine wear, lower target bale density setting to account for straw’s lower compression coefficient compared to hay, and more frequent chain tension checks. When switching from hay to rice straw, clean the rollers and pickup housing thoroughly \u2014 hay residue mixed with wet rice straw creates sticky masses that obstruct crop flow. Reverse the process when moving back to hay: remove any straw fragments from the chamber before the first dry-hay pass to avoid inconsistent bale formation in the new crop.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ6. When is the right time to use net wrapping versus twine on rice straw bales intended for outdoor storage in the Japanese harvest season?<\/summary>\n
Net wrapping is the clear preference for any bales that will be stored outdoors for more than a week before collection, which is typical in Japan’s harvest logistics. Net wrap creates a tighter surface skin that sheds rain more effectively than twine, reducing outer-bale spoilage depth from 5\u20138 cm (twine-bound) to 1\u20132 cm (net-wrapped). Twine can be used for bales going directly from the field to an enclosed barn or processor within 24 hours of baling.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ7. Which round baler model is recommended for a mid-size Korean rice farm looking to supply baled straw to a nearby biomass energy plant on a supply contract?<\/summary>\n
For biomass supply contracts requiring consistent bale dimensions and throughput, the 9YG-2.24D or 9YG-1.25 series with sensor-controlled density monitoring is recommended. Biomass plants often have automated handling systems calibrated to a specific bale diameter range \u2014 confirm the plant’s specifications before finalizing your baler selection. The 9YG-2.24D produces bales of \u00d81,300 \u00d7 1,400 mm at 100\u2013200 kg\/m\u00b3 density, which falls within the accepted range for most fixed-bed biomass boiler feed systems in Korea.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ8. How do Japanese regulations around open burning of rice straw affect the farm business case for investing in a round baler machine?<\/summary>\n
The regulatory risk of continued open burning \u2014 fines of up to 300,000 JPY per incident in strictly enforced prefectures \u2014 creates a direct financial argument for baling as a risk-mitigation measure, not just a revenue opportunity. Beyond the penalty risk, farms that can document their straw management practices (baling, sale, and certified end use) have access to carbon credit programs and environmental compliance certifications that some agricultural cooperatives and JA (Japan Agricultural Cooperative) networks increasingly require from members.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ9. What is the average lifespan of a mini hay baler or small round baler used in paddy straw operations, and what is the expected major overhaul schedule?<\/summary>\n
Well-maintained round balers in paddy straw service typically achieve 8\u201312 years of operational life in Japanese conditions, producing 50,000\u2013120,000 cumulative bales before major structural refurbishment is needed. Annual pre-season service should cover: gearbox oil change, tine set inspection and partial replacement, chain tension and lubrication, hydraulic hose inspection, and tailgate cylinder seal check. A mid-life overhaul at 5\u20136 years typically involves roller bearing replacement, full chain replacement, and gearbox inspection \u2014 costs varying by model but generally representing 15\u201325% of original machine purchase value.<\/div>\n<\/details>\n<\/div>\n
\n
\nQ10. How do I find a round baler manufacturer that can provide customized specifications for the specific paddy field conditions in Chungcheong or Jeolla Province in South Korea?<\/summary>\n
Look for manufacturers who have documented experience supplying round balers for paddy straw applications in East Asian markets \u2014 not just general hay operations. Request a technical data sheet that includes compression chamber performance data at varying crop moisture levels, and ask whether the manufacturer offers regional specification adjustments such as modified tine geometry for high-silica crops. Use our contact page to describe your specific field conditions, tractor model, and straw end market, and our technical team will recommend the best-matched configuration from the 9YG series range.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n

Bi\u00ean t\u1eadp vi\u00ean: PXY<\/p>","protected":false},"excerpt":{"rendered":"

Rice Straw Baling | Agricultural Insight An in-depth technical and practical guide covering machine construction, material science, regional regulations, and equipment selection for paddy straw baling in East Asian rice agriculture. Updated 2026 \u00a0|\u00a0 Korea & Japan Rice Farm Focus \u00a0|\u00a0 10+ min read 1. Why Rice Straw Management Has Become a Priority Across Japan’s […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[44],"tags":[],"class_list":["post-665","post","type-post","status-publish","format-standard","hentry","category-rice-straw-baling-guide"],"_links":{"self":[{"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/posts\/665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/comments?post=665"}],"version-history":[{"count":5,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/posts\/665\/revisions"}],"predecessor-version":[{"id":699,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/posts\/665\/revisions\/699"}],"wp:attachment":[{"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/media?parent=665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/categories?post=665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/farm-balers.com\/vi\/wp-json\/wp\/v2\/tags?post=665"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}