EP-9GD-2.5 Trailed Single-Blade Mower-Upgraded

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1. Technical Specifications: EP-9GD-2.5 Trailed Single-Blade Mower-Upgraded

2. Redefining Efficiency in Forage Harvesting: The Upgraded 9GD-2.5 Trailed Mower

In the evolving landscape of modern agriculture, particularly within the diverse topographies of South Korea and East Asia, the demand for harvesting equipment that balances power efficiency with high output is critical. The 9GD-2.5 Trailed Single-Blade Lawn Mower (Upgraded Version) stands as a testament to engineering refinement, specifically designed to meet the rigorous demands of natural and planted pasture harvesting. Unlike heavy-duty rotary disc mowers that require substantial tractor horsepower, this reciprocating trailed mower operates with exceptional efficiency, requiring only 15-35 kW (20-50 HP). This makes it the ideal partner for the mid-sized tractors commonly found in provinces like Jeollanam-do and Gyeongsangbuk-do, where fuel economy and maneuverability are paramount. The “Upgraded Version” designation is not merely a label; it represents a significant enhancement in structural integrity, blade durability, and hydraulic responsiveness, ensuring that the machine delivers a consistent 2.5-meter cutting width without faltering, even during the peak harvest windows.

The operational philosophy behind the 9GD-2.5 is simplicity coupled with reliability. Designed for a single operator, the machine integrates seamlessly with the tractor’s hydraulic system to manage the lifting and lowering of the cutter bar. This feature is particularly beneficial when navigating the smaller, segmented fields often found in Korean agriculture, allowing for quick turns and easy transport between sites. Furthermore, while many market options focus on high-speed, high-impact cutting, the 9GD-2.5 utilizes a reciprocating action that ensures a clean cut with minimal crop shattering. This preservation of leaf integrity is crucial for maintaining the nutritional value of the forage, whether it be alfalfa, timothy, or native grasses.

By adhering to the GB/T10940-2008 standard and holding a valid Agricultural Machinery Test Appraisal Certificate, this unit offers farmers a verified, low-failure-rate solution that drastically reduces downtime during critical harvest periods.

3. Engineering Mechanics: Working Principle, Material Science, and Application Scenarios

The core working principle of the 9GD-2.5 relies on a reciprocating cutting mechanism, often referred to as a sickle-bar system. Powered by the tractor’s PTO shaft at 540 r/min, the drive motion is converted into a linear oscillation that moves the 34 individual mower blades back and forth against stationary guards. This shearing action acts like a pair of scissors, slicing through plant stems cleanly rather than tearing them through impact. This mechanism is particularly advantageous for minimizing soil contamination in the swath, as it does not generate the high-velocity air suction associated with rotary mowers. The hydraulic lifting system allows the cutter bar to be raised efficiently for transport or to clear obstacles, enhancing the machine’s adaptability. The upgrade in this version includes a reinforced crank drive and improved bushing materials to withstand the high-frequency oscillation, reducing vibration transfer to the main frame and the towing tractor.

In terms of material composition, the 9GD-2.5 is constructed to endure. The main chassis utilizes Q345B high-strength structural steel, providing a rigid backbone that resists twisting forces on uneven terrain. The 34 dynamic mowing blades are forged from heat-treated 65Mn spring steel or specialized boron alloy, ensuring they retain a sharp edge longer and resist fracturing upon impact with small debris. Regarding application scenarios, this machine excels in flat to gently rolling fields of natural grass and cultivated forage crops. However, it is vital to note the limitations for optimal performance: it is not suitable for paddy fields, wetlands, dense forests, or areas with significant rock formations or “tussocks” (large clumps of roots/soil). In South Korea, where rice straw harvesting is common, this machine is better index-linked to the pre-rice harvest forage season or upland pasture management, offering a distinct advantage over complex zero turn mowers or smaller electric lawn mower units which are insufficient for agricultural scale production.

4. Global Safety Regulations and South Korean Compliance Standards

Navigating the regulatory landscape of agricultural machinery is essential for ensuring operator safety and legal compliance. The 9GD-2.5 is manufactured in strict accordance with the GB/T 10940-2008 standard for reciprocating mowers, ensuring it meets rigorous benchmarks for structural safety and performance consistency. For our South Korean clientele, we pay close attention to the requirements set forth by the Korea Agricultural Technology Promotion Agency (KOAT). This includes ensuring that all Power Take-Off (PTO) shafts are equipped with fully enclosed, non-rotating safety shields to prevent entanglement hazards—a critical compliance point in Korean agricultural safety laws. Furthermore, the hydraulic systems are designed to withstand pressures compliant with ISO standards, preventing leaks and ensuring fail-safe operation during lifting maneuvers.

Globally, and specifically in markets with strict environmental and safety directives like the EU and East Asia, machinery must minimize the risk of ejected debris. The 9GD-2.5’s reciprocating design naturally produces less flying debris compared to rotary mowers, but we still incorporate standard safety guards and clear warning decals in local languages (including Korean) to alert operators of danger zones. We also facilitate compliance with local road transport regulations by equipping the unit with standard mounting points for reflectors and slow-moving vehicle (SMV) signage, ensuring that when the unit is towed on public roads between fields in places like Gyeonggi-do, it remains visible and compliant with traffic laws. This dedication to regulatory alignment ensures a smooth import process and safe daily operation for the end-user.

5. 2026 Market Trends: The Shift Towards Efficient Forage Management

The agricultural machinery market in South Korea and the broader Asia-Pacific region is witnessing a distinct shift towards “Right-Sized Mechanization.” Historically, the trend favored larger, more powerful machinery. However, rising fuel costs and the fragmentation of arable land have led to a resurgence in demand for efficient, lower-horsepower implements like the 9GD-2.5 trailed mower. Farmers are increasingly prioritizing Total Cost of Ownership (TCO) over raw power. The reciprocating mower segment is experiencing growth because it offers a significantly lower fuel consumption rate per hectare compared to rotary drum or disc mowers. Furthermore, there is a growing emphasis on “Feed Quality” over “Harvest Speed.” Studies indicate that the clean shearing action of sickle bar mowers promotes faster regrowth of the crop stubble and reduces the ash content in the silage, aligning with the high-quality feed requirements of the Hanwoo beef and dairy sectors. This product fits perfectly into this trend, offering a sustainable, cost-effective solution for modern forage production.

6. Customer Success Story:

7. Replaceable parts

7.1 Gearbox:

Compatible models: EP-Round baler series (round baler, transmission ratio 1:2, compatible with 35mm 6-spline shaft).
Application: Transmits PTO power to the baling mechanism, suitable for New Holland 630 or John Deere 535. Parameters: Torque > 500 Nm, 20% fuel saving.
Why choose this gearbox: Customizable size (reducible to 250-300mm), resistant to viscous contaminants (rubber fumes), IP65 protection.

7.2 PTO SHAFT:

Compatible Models: EP-PTO series (1-3/8″ Z6 spline, adjustable length 600-1200mm).
Application: Connects tractor to baler main drive, suitable for 9YG-1.0C type. Torque transmission efficiency >95%, compatible with SAE/EURO flanges.

7.3 Chains & Sprockets:

Compatible Models: ANSI #50/#60 chains, with EP-Sprocket (pitch 12.7-19.05mm, roller diameter 10-12mm).
Application: Used in conveyor belts or binding mechanisms, suitable for square/round baler straw conveying. Width 25-40mm, wear-resistant steel material.

7.4 Couplings:

Compatible Models: EP-Coupling 200 series (torque matching 500-1000 Nm).

Application: Connects gearbox to baling roller, dampens vibration.

7.5 Hydraulic Cylinder:

Hydraulic Cylinder: EP-HC series (bore 50-100mm, stroke 300-600mm), suitable for bale lifting.

Bearings and Seals: 6208-2RS bearings, L10 life >10000 hours, dustproof seal.

Compatibility Table: Fully interchangeable with Comer 250T (torque matching, only 35% of the price); flange matches North American 4-Bolt PTO Pattern.

Frequently Asked Questions (FAQ)

Editor: PXY