9GD-2.5 Towed Single-Blade Lawn Mower for Pasture Harvesting

Product Overview

The 9GD-2.5 is a towed single-blade lawn mower built around one simple principle: deliver a wide, clean cut using the least amount of tractor power possible. In a market flooded with rotary cutters that demand 60 to 80 horsepower just to spin up, this reciprocating sickle bar design operates comfortably behind tractors in the 15 to 35 kW range. That is roughly 20 to 50 horsepower. For farm operators in Gyeonggi-do, Gangwon-do, or the southern provinces of Korea who rely on compact utility tractors for daily fieldwork, that power compatibility alone makes this machine worth a hard look.

The cutting mechanism uses a reciprocating knife assembly carrying 34 individual blades. Each blade is forged from heat-treated carbon steel and ground to a fine cutting edge. They slide back and forth across fixed ledger plates in a scissor-like shearing motion, slicing grass stems cleanly rather than tearing or pulverizing them. That distinction matters enormously when you are harvesting forage intended for livestock feed. A clean cut preserves the protein-rich leaf tissue that dairy cows and horses depend on. Torn, bruised stems lose nutritional value and invite rot. The clean shear from a reciprocating sickle bar mower produces hay that fetches a higher market price at every livestock auction in the region.

The trailed chassis design deserves attention as well. Unlike three-point mounted mowers that hang off the tractor's rear linkage and shift weight dangerously toward the back axle, this lawn mower rides on its own dedicated set of pneumatic tires. The 490 kg structural mass stays on those wheels, not on your tractor. That means smaller tractors can pull this 2.5-meter implement without front-axle lift, without steering loss on slopes, and without the fatigue-inducing vibrations that come from cantilevered equipment. The drawbar hitch connects to any standard tractor tow point, and the single hydraulic hose controls the cutter bar lift from the cab. One operator handles the entire mowing operation without ever leaving the seat.

This model conforms to the GB/T10940-2008 national standard for reciprocating mowers and has passed agricultural machinery testing and certification. It is a production-proven field tool backed by years of real-world operation across grasslands, cultivated pastures, and forage plantations throughout Northeast Asia and beyond.

 

Technical Specifications of the 9GD-2.5 Mower

Selecting the right mowing equipment starts with matching the specifications to your field conditions, tractor fleet, and harvesting targets. The table below presents the verified parameters of the 9GD-2.5 towed single-blade lawn mower. These figures come from factory testing under standard agronomic conditions and reflect the production model currently shipping to customers in Korea, Japan, and other East Asian markets.

The 540 r/min PTO input is the global standard, compatible with virtually every tractor brand sold in Korea including Daedong, TYM, LS Mtron, Kukje, Kubota, John Deere, and New Holland. These brand names are listed purely for compatibility reference and do not represent any trademark affiliation or endorsement.

Product Highlights at a Glance

The 9GD-2.5 towed single-blade lawn mower was developed specifically for the harvesting of natural and cultivated pasture grasses. It is towed by wheeled tractors rated between 15 and 35 kW (20 to 50 HP), making it one of the most fuel-efficient forage mowers available in its cutting-width class. Below are the core features that set this machine apart from conventional alternatives.

How the Reciprocating Sickle Bar Drive Works

⚙ Power Transmission from PTO to Cutter Bar

The mechanical heart of this towed single-blade lawn mower is the eccentric pitman drive assembly. When the tractor operator engages the rear PTO at 540 revolutions per minute, torque flows through a shielded drive shaft to a precision gearbox mounted on the mower frame. Inside that gearbox, an eccentric crank wheel converts the continuous rotational motion into rapid back-and-forth linear movement. A forged pitman arm connects the eccentric wheel to the knife spine, which is a long steel bar carrying all 34 cutting blades.

As the crank wheel spins, it pushes and pulls the knife spine left and right at high speed across the stationary ledger plates. The result is a continuous scissor action stretching across the full 2.5-meter cutting width. Each blade oscillates through a stroke length calibrated to align precisely with the gaps between adjacent ledger plates. When a grass stem finds itself caught between a moving blade and a stationary ledger plate, the shearing action slices it cleanly. There is no tearing, no crushing, no high-speed impact. The entire cutting process is mechanical and deliberate, which is why this type of sickle bar mower draws so little power compared to rotary alternatives.

🔧 Hydraulic Lift and Obstacle Avoidance

The cutter bar height is controlled by a hydraulic cylinder connected to the tractor's rear hydraulic remote valve. A single-acting valve is all that is required. When the operator pulls the lever in the cab, pressurized oil extends the cylinder and lifts the entire 2.5-meter cutter bar clear of the ground. This is essential for headland turns, road transport, and clearing unexpected obstacles like rocks, fence posts, or irrigation risers hidden in tall grass.

🛡 Spring-Loaded Breakaway Safety

An additional safety feature built into the drawbar linkage is the spring-loaded breakaway mechanism. If the cutter bar strikes an immovable object with enough force, the breakaway latch releases and allows the bar to swing rearward, absorbing the impact energy. Once the operator stops and reverses the tractor slightly, the bar clicks back into its locked working position. This mechanical fuse protects the pitman arm, the gearbox, and the frame from bending damage that would otherwise end the workday. It is a simple but highly effective safeguard for operations on pastures where hidden obstacles are always a risk.

Field Applications and Terrain Suitability

🌾 Natural Grassland and Prairie Harvesting

On open grasslands ranging from several hectares to thousands of hectares, fuel economy becomes the defining factor in harvest profitability. The 9GD-2.5 addresses this directly. Its 2.5-meter cutting swath, paired with a power draw as low as 20 HP, slashes diesel consumption per hectare compared to rotary alternatives demanding 60+ HP for similar widths. Operations managing native grasses across Gangwon-do's highland plateaus or the semi-arid grasslands of central Mongolia find this combination of width and efficiency extremely productive. The wide, aerated swath left behind the machine dries quickly in the sun and sets up well for subsequent raking and baling passes.

🌱 Alfalfa and Legume Forage Production

Alfalfa, clover, and other high-protein legumes are notoriously sensitive to leaf shatter during harvest. Rotary mowers strike stems with violent impact forces that strip delicate leaves from the plant, reducing the crude protein content of the final hay product. The reciprocating scissor action of this sickle bar mower eliminates that problem. Stems are sheared cleanly at the base, and the intact plant falls gently backward over the low-profile cutter bar. Leaf retention stays high, which directly affects the Relative Feed Value (RFV) grade and the price premium dairy farmers and equine operations are willing to pay for top-tier hay.

🐎 Livestock Pasture Management for Dairy and Beef Operations

For Korean dairy cooperatives and beef cattle ranches in Chungcheong and Jeolla provinces, managing rotational grazing paddocks requires a mower that leaves a clean, uniform stubble. The 9GD-2.5 maintains a consistent 50-70 mm cutting height, which preserves the plant crown and root system for rapid regrowth. This is critical for farms running tight grazing rotation cycles where the pasture needs to recover within 25 to 35 days. The clean-cut stubble also minimizes soil contamination in the swath, reducing ash content in fermented silage and dried hay.

🚫 Conditions to Avoid

To protect both the machine and your investment, the 9GD-2.5 should not be deployed in:

• Paddy fields or waterlogged ground
• Swampy wetlands with standing water
• Dense forested undergrowth or brush
• Areas with heavy concentrations of large rocks, tree stumps, or tussock mounds

The reciprocating blade mechanism is designed for clean-shearing soft to medium plant stems. Striking hard objects repeatedly will dull the blades prematurely and stress the pitman arm bearings. Stick to open, firm ground and this machine will reward you with years of dependable service.

Sickle Bar Mower vs. Rotary Mower: A Practical Comparison

Farmers frequently ask whether they should go with a reciprocating sickle bar mower or a rotary disc cutter. Both have legitimate applications, and the right answer depends on your pasture type, tractor size, and end-use of the cut forage. The table below puts the two designs side by side on the factors that matter most in daily field operations.

The takeaway is straightforward: if your primary goal is high-quality forage production with the lowest possible operating cost, a reciprocating sickle bar design like the 9GD-2.5 is the stronger choice. Many progressive farms keep both types in their equipment shed, deploying the sickle bar for clean forage and the rotary for rough cleanup on neglected paddocks and fencerows.

Maintenance Guide and Blade Care

📅 Daily Pre-Operation Checks

Before starting each mowing session, walk the machine and perform a brief visual inspection. Verify that all blade rivets are tight and none of the 34 cutting blades show cracks, chips, or excessive dullness. Check the pitman arm ball joint for play by gripping the arm and rocking it. Any looseness here indicates a worn bearing cup that should be replaced before the next working day.

Your daily checklist should include:

• Apply 2-3 pumps of lithium grease through the zerk fittings on the pitman ball joint and eccentric bearing housing
• Grease the drive shaft universal joints
• Confirm the hydraulic hose shows no leaks or abrasion
• Test that the lift cylinder extends and retracts smoothly
• Check tire pressure on both support wheels (typically 1.5 to 2.5 bar)
• Verify the PTO shield is in place and the drawbar pin is secured with its lynch pin

🔨 Blade Replacement and Sharpening

The 34 moving blades are consumable items that require periodic replacement. Under normal conditions on clean pasture, a set of blades will last 80 to 120 operating hours before the cutting edges dull enough to affect performance. You will notice the signs: ragged stem ends instead of clean cuts, increased power draw, and the tractor laboring harder at the same forward speed.

Individual blades can be replaced in the field by punching out the rivets with a standard drift pin and hammer, fitting the new blade, and riveting it in place. The entire operation takes about five minutes per blade. Blade sharpening is possible using a bench grinder or flat file, maintaining the original bevel angle of approximately 23 degrees. Ground blades can be reused for another 40 to 60 hours before they become too thin to hold an edge. Once a blade has been sharpened twice, retire it and install a new one. The ledger plates themselves should be inspected at the same intervals for rounded edges.

❄ Seasonal Storage Preparation

At the end of the mowing season, clean the entire machine thoroughly with a pressure washer. Pay attention to grass buildup around the cutter bar and inside the gearbox housing vents. Then follow these steps:

1. Drain and replace the gearbox oil
2. Apply a coat of rust-preventive oil on all unpainted metal surfaces, blade edges, and ledger plates
3. Retract the hydraulic cylinder fully and disconnect the hose
4. Block the machine up on stands to take weight off the tires and prevent flat-spotting
5. Cover the machine with a tarp or move it to indoor storage

These simple steps at season end ensure the 9GD-2.5 is ready to go on the first mowing day of the next year without any surprises.

Why Choose Ever-Power as Your Equipment Supplier

Ever-Power Group is a vertically integrated manufacturer with deep experience across mechanical transmission systems, agricultural gearboxes, PTO drive shafts, and a full range of forage harvesting equipment. When you purchase the 9GD-2.5 from us, you are buying directly from the factory that forges the blades, machines the gearbox housings, and assembles every component under one roof.

• 🏭 Direct Factory Pricing
  No middlemen, no distributor markups. Your order goes directly into our production line, and the finished machine ships from our loading dock to your port. This keeps your total landed cost as low as physically possible.
• 📈 ISO 9001:2015 Quality System
  Raw steel is inspected and traced. Welds are tested. Blade hardness is verified on every batch. Finished machines are operationally tested before they leave the facility. We hold numerous patents covering gearbox design, PTO coupling mechanisms, and cutting assembly geometry.
• 🚚 Experienced Export Logistics
  We maintain a dedicated export department experienced in containerized shipping to Korean ports including Busan, Incheon, and Pyeongtaek. We handle all export documentation and ship on FOB, CIF, or DDP terms depending on your preference.
• 📦 Spare Parts Availability
  Parts inventory is maintained for all current and recent production models. We offer next-day dispatch on common wear items like blade sets, pitman arm bearings, gearbox seals, and PTO shaft couplings. No waiting weeks for a part that costs you revenue every day it is missing.
• 📞 After-Sales Technical Support
  Our engineers are available by phone, email, and video call to support installation, adjustment, and troubleshooting in your local time zone. We treat every customer relationship as a long-term partnership, because in the agricultural equipment business, the second sale only happens if the first machine performed.
• 🌎 Global Track Record
  Over the years, we have supplied equipment to farming operations, government land management agencies, and agricultural cooperatives across more than 50 countries. That track record is built on delivering machines that work as promised.

Related Agricultural Equipment from Ever-Power

The 9GD-2.5 is one component in a complete forage harvesting workflow. From mowing to raking to baling and beyond, Ever-Power manufactures the full chain of equipment. We also supply the mechanical transmission components that keep all of this machinery running. Here is an overview of what we offer alongside our mower range.

Need a complete workflow solution from mowing through baling? Our sales team can assemble a package quotation covering all the equipment and spare parts your operation requires, shipped together in a single container to minimize freight costs.

Frequently Asked Questions

Customer Reviews