EP-6500×2900×3360mm LWH Hammer-Claw Square Baler

① Hammer-Claw Pickup

The hammer-claw mechanism engages directly with standing or lodged crop stalks. Unlike spring-tooth or rigid-tine pickers that require pre-cut windrow material, the hammer-claw can grip, pull down, and ingest upright corn stalks, sorghum, and cotton material in a single forward pass — eliminating the need for a separate pre-cutting operation before baling.

② Negative-Pressure Dust Removal

As material enters the machine, the negative-pressure fan creates an inward airflow that separates fine soil particles, sand, and light debris from the crop stream before it reaches the crushing stage. This active dust removal process is continuous during operation and is what makes this machine particularly suited to harvesting in sandy or silty soil regions where soil contamination of bales is a chronic problem.

③ Dual-Stage Crushing

The dual-stage crushing mechanism breaks down hard, coarse stalks — particularly corn and sorghum — more thoroughly than single-pass systems. Greater fragmentation increases the surface area of material inside the bale, which improves compaction density and reduces spring-back after ejection. Denser bales weigh more per unit volume and hold shape better during storage and transport.

④ Fork Feeding & Compression

Processed material transfers through the fork feeding unit into the 460×360mm compression chamber. The plunger cycles repeatedly, building the bale in successive strokes. The combination of pre-crushed material and consistent fork feeding produces bales with notably higher density and forming stability than those produced from uncrushed, irregular stalk material in conventional square baler machines.

⑤ Automatic Knotting

Dual D-type knotters tie twine automatically around each completed bale. With no manual tying required, the operator maintains forward speed through the entire cycle. Finished large square hay bales eject rearward onto the field ready for collection, loading, or in-field stacking without stopping the baling sequence.

Handles Standing & Lodged Crops

The hammer-claw pickup is the only configuration in our range capable of processing upright or heavily lodged corn stalks, sorghum, and cotton material without a separate pre-cut pass. This is the defining capability of this machine versus every spring-tooth or rigid-tine square hay baler in the market. For corn belt operations and cotton-growing regions, it eliminates a full machinery operation from the post-harvest sequence.

Active Dust Removal at Pickup

The integrated negative-pressure fan removes soil contamination from the crop stream before it enters the compression cycle — not after baling is complete. Clean bales perform better in livestock feeding (better palatability), biomass processing (lower equipment wear), and straw recycling (higher quality feedstock grade). No post-processing sorting or cleaning step is needed at the receiving facility.

Superior Bale Density via Dual Crushing

Two-stage crushing breaks down hard stalks more completely than any single-pass system. The result is a denser, more stable bale with less spring-back after ejection. Dense big square hay bales cost less to transport per tonne, stack more stably in open storage, and have a longer shelf life in outdoor conditions where bale structure integrity matters for protection against moisture ingress.

Wide Crop Type Versatility

This machine handles the full spectrum: wheat straw, rice straw, corn stalks, sorghum, cotton stalks, alfalfa, fresh and dry herbage, and mixed forage. Moisture content tolerance spans 10%–23% for stalks and up to 23% for legume forage — broad enough to cover the normal range of field conditions encountered across one harvest season without stopping to adjust machine settings between crop types.

2200mm Swath Width at Commercial Scale

At 2200mm picking width and 2350kg machine weight, this is a big square baler built for commercial-scale throughput. For straw contractors, agricultural cooperatives, and large grain farms in Russia, Kazakhstan, and Korea operating on hundreds of hectares, the wide swath reduces the number of passes per field and keeps per-hectare operating costs competitive against round baler alternatives.

Main Chassis

Heavy-section welded steel box construction, designed to absorb the torsional and impact loads generated by hammer-claw pickup engagement with standing crop stalks. Weld integrity is inspected at critical joint locations during production — not just at final acceptance.

Hammer-Claw Elements

Forged high-carbon tool steel, hardened and tempered. Hammer-claw elements are subject to significantly higher impact loads than conventional pickup tines — particularly when engaging standing stalks. Hardened tool steel extends service life substantially and reduces replacement frequency during intensive harvest seasons.

Crushing Mechanism

Dual-stage crushing rollers or flails are built from wear-resistant alloy steel. The crushing surfaces encounter some of the hardest material in the machine's operating cycle — dried corn or sorghum stalks are abrasive and dense. Alloy steel construction at these contact points is not optional engineering; it is the baseline requirement for multi-season service life.

Compression Chamber

Hardened wear-plate lining throughout the 460×360mm bale channel and compression surfaces. The chamber geometry produces a standard-format rectangular cross-section compatible with existing bale-handling and storage infrastructure globally. Hardened liner plates defer the most costly in-season repair event — chamber wear-through — significantly past the typical first-service interval of unhardened alternatives.

🌽 Standing & Lodged Corn Stover

Corn stover that remains standing or heavily lodged after combine harvest is typically left unprocessed by farms without specialized equipment. This machine picks it up directly. The hammer-claw mechanism engages upright stalks, pulls them through the feed channel, and passes them to the dual-stage crushing unit — all in a single forward pass. No pre-cutting tractor pass required.

🌾 Wheat & Rice Straw in High-Volume Operations

For straw contractors and agricultural cooperatives managing large-scale cereal straw recovery across Eastern Europe, Russia, and Korea, the 2200mm picking width and ≥73.5kW power requirement position this as the best square hay baler option for high-throughput commercial operation. Wider swath, faster field coverage, lower cost per bale at scale.

🌿 Cotton Stalk Recovery

Cotton stalks present handling challenges for most square hay baler machines — they are coarse, woody, and often standing after defoliation. The hammer-claw pickup and dual-stage crushing combination handles cotton stalk material that would jam or damage lighter-duty baler configurations. The negative-pressure fan removes the fine soil and cotton fiber dust that contaminate bales in cotton-field conditions.

🐄 Alfalfa & Fresh Forage Baling

This machine performs equally well on fresh and dry herbage, alfalfa, and mixed gramineous forage at the moisture contents typical for livestock feed baling. The dust-removal function is particularly valuable for alfalfa baling, where soil-contaminated bales cause palatability issues and reduce feed intake in dairy and beef cattle operations — a direct economic loss that clean bales eliminate.

♻️ Biomass Fuel & Industrial Straw Supply

Biomass power plants, paper pulp producers, and mushroom substrate manufacturers increasingly require contracted straw and crop residue in uniform, high-density, low-contamination bale formats. The dual-crushing, dust-removing square bale output from this machine meets the feedstock quality requirements of industrial buyers in ways that bales from conventional large square balers frequently do not.

South Korea — KS B ISO Standards

Agricultural machinery sold in Korea must meet KS B ISO 4254 general safety requirements and KS B ISO 11684 safety sign specifications. The ≥73.5kW power class of this machine requires careful PTO shaft selection; Korean buyers should verify compliance of the PTO shaft with KS B 6024 guarding requirements and confirm current provincial operating registration requirements for commercial-scale machinery before field deployment.

European Union — CE / Machinery Directive 2006/42/EC

For EU markets including Germany, France, and the Netherlands, this square baler as a towed agricultural implement falls under Machinery Directive 2006/42/EC. CE marking requires a risk assessment, technical file, and compliance of PTO shaft shielding with EN 1152 and EN 12965. Given the higher power class (≥73.5kW) and additional mechanisms (fan, dual crusher), buyers in EU markets should request a full compliance package before import.

Russia, Belarus & Kazakhstan — EAEU TR

Within the Eurasian Economic Union, TR EAEU 010/2011 on machine safety and TR EAEU 018/2011 on wheeled vehicle safety govern commercial agricultural machinery. Russian importers additionally require GOST R certification for commercial sales. For operations in Kazakhstan, local agricultural machinery registration with the Ministry of Agriculture may be required. Confirm current documentation requirements with your customs broker prior to shipment.

Global PTO Safety — ISO 500 & ISO 11684

ISO 500 defines PTO shaft dimensions and rotational speed standards (540rpm / 1000rpm) that ensure tractor-implement compatibility across manufacturers and markets. This square baler operates on the standard 540rpm PTO at ≥73.5kW. Always confirm your tractor's PTO rating matches the machine's minimum power requirement before field engagement — operating below minimum power at high crop throughput is a primary cause of drivetrain component failure.

PTO Drive Shaft

At ≥73.5kW, the PTO shaft in this system carries some of the highest torque loads in any towed agricultural implement. An undersized or worn shaft is not a nuisance — it is a safety hazard. Our EP PTO Shaft for square balers is rated for this power class, with slip-clutch overload protection built in. Available in custom lengths for different tractor configurations. Stocking a spare shaft before the season opens eliminates the longest lead-time item in a mid-harvest breakdown scenario.

Square Baler Gearbox

The gearbox distributes PTO input power across all driven mechanisms in the machine — pickup, crusher, plunger, and knotters. In the ≥73.5kW power class, gearbox components experience loads that accelerate wear faster than in lighter machines. Our matched square baler gearbox units are dimensioned and rated for this specific power class — not generic agricultural gearboxes adapted to fit. Direct-fit replacement, no shimming or bore modification required.

Developing a machine that handles standing corn stalks required more than drawing on standard baler design principles — it required input from the people who actually manage corn residue at scale: combine operators, straw contractors, and livestock managers dealing with the practical consequences of leaving crop residue in the field across multiple seasons.

We started in 2021 in a 2,000-square-meter workshop with a specific frustration to resolve: farms were forced to choose between machines priced beyond their margins or cheaper alternatives that consistently failed during the highest-pressure weeks of the harvest calendar. Neither option was acceptable. Our starting design brief was a machine that performed during peak demand and could be serviced by an operator with standard tools in the field.

The 32,000-square-meter modern facility and 2,000-unit annual output we operate today grew from that original intent. Our customer base now spans Mongolia, Russia, Belarus, and growing markets across Asia and Eastern Europe. The hammer-claw series represents the most technically advanced product in our square baler range — the result of iterating through actual field conditions, not just laboratory simulations.