Walk-Behind Weeder | 3CQ4-51
Description
Xinghu 3CQ4-51 walk-behind weeder is a commercial-grade, high-efficiency agricultural weeding machine engineered to tackle dense vegetation, stubborn brambles, and thick crop residues. Powered by a genuine 225CC Zongshen 4-stroke petrol engine, this heavy duty brush cutter delivers 4.1kW of stall-free power, making it a reliable choice for family farms, commercial orchards, and landscaping contractors. Featuring an aerodynamic, quenched chassis blade and a flexible 4-level height adjustment range (25-75mm), it seamlessly adapts to varying vegetation densities and complex landscapes. Built by a certified garden machinery supplier, this multi-terrain farm weeder offers global wholesale buyers outstanding mechanical durability, low maintenance overheads, and a highly versatile solution for year-round land clearing.

Key Selling Points & Visual Breakdown
Overcoming Traditional Weeding Limitations
Manual weeding is notoriously back-breaking and slow, while standard handheld trimmers frequently stall, overheat, or suffer from cord entanglement when facing thick, overgrown wild grass. Furthermore, low-end agricultural mowers lack stability on sloped or muddy surfaces and often cause costly damage to tree bark and shallow roots.
The Xinghu 3CQ4-51 walk-behind weeder completely resolves these operational challenges. Positioned as a premier gas powered weed trimmer, it offers cordless operational freedom, a balanced anti-tip structure, and professional-grade clearing capacity that saves massive time and labor for modern agricultural operations.
Genuine Zongshen Power & Advanced Thermal Management
At the heart of this machine is an authentic Zongshen 4-stroke OHV engine producing a high-torque 4.1kW output. Designed with an advanced oil-gas separation system, it runs on standard 90# or higher unleaded gasoline without the hassle of fuel-oil mixing. The engine shroud is engineered with multi-hole heat dissipation vectors, ensuring that high ambient outdoor temperatures will not cause cylinder pulling or sudden engine extinguishment during continuous, heavy-load operations.
4-Level Precision Cutting & Heavy-Duty Chassis Blade
Equipped with an ultra-durable, aerodynamic chassis blade forged via a specialized quenching process, the pump-action cutting deck delivers clean, high-velocity shredding. The intuitive 4-level height adjustment mechanism allows operators to instantly modify the cutting clearance from 25mm to 75mm:
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25mm–50mm: Perfect for residential estate landscaping, vineyard walkways, and clean inter-row farm weeding.
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50mm–75mm: Optimized for deep-rooted weeds, thick brambles, and brush removal on rural hillsides and abandoned wasteland.

Technical Specifications
| Parameter Item | Specification Details |
| Model | 3CQ4-51 |
| Engine Type | Genuine Zongshen 4-Stroke Gasoline Engine |
| Displacement | 225CC |
| Rated Power Output | 4.1 kW |
| Rated Speed | 3600 r/min |
| Idle Speed | 1600 ± 150 r/min |
| Clutch Engagement Speed | 2000 ± 150 r/min |
| Max Cutting Width | 51 cm |
| Working Efficiency | Up to 1300 m²/h |
| Cutting Height Adjustment | 4 Levels (25 mm – 75 mm) |
| Clutch Type | Heavy-Duty Centrifugal Clutch |
| Blade Configuration | 1 pc Thickened Quenched Chassis Blade |
| Net / Gross Weight | 50 kg / 67 kg |
| Overall Dimensions | 111.5 × 61.5 × 59.5 cm |
Multi-Scenario Versatility for Global Applications
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Commercial Orchard Maintenance: Functions as a precision orchard weed remover that skims closely around tree rows without damaging delicate bark or surface-level root systems.
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Post-Harvest Field Cleaning: Swiftly mulches dry crop stalks and seasonal overgrowth to tidy up arable land for the next planting rotation.
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Wasteland & Hillside Reclamation: Cuts through wild, aggressive scrub and thorny undergrowth on uncultivated sloped land or rural property borders.
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Large Residential Yard Upkeep: Delivers pristine turf management across rural estates, long fence lines, and expansive ditches.
Detailed Product Analysis
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High-Position Air Filter: Raised intake placement blocks field dust and airborne organic debris, dramatically reducing engine wear in dusty farmlands.
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Heavy-Duty Centrifugal Clutch: Ensures smooth power transmission and isolates the engine from sudden shocks, preventing stalling when the blade strikes dense stalks.
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Large Shock-Absorbing Wheels: Rugged, deep-tread rear tires provide excellent trafficability on uneven terrain, preventing slipping or sinking on loose soil.
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Ergonomic Handle & Throttle Control: A vibration-damping stainless steel handle assembly with an integrated throttle trigger ensures precise speed regulation and reduces operator fatigue during long shifts.
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Independent Choke Valve: Facilitates easy, rapid pull-starts and consistent fuel delivery even during cold-weather early morning starts.

Safety, Operation & Maintenance Guidelines
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Pre-Operation Lubrication: Fill the engine with premium 4-stroke engine oil (approx. 550ml) and inspect the dipstick. Never operate with low oil levels.
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Fuel Compliance: Fill the fuel tank with clean unleaded gasoline (90# grade or higher). Do not mix oil directly into the fuel tank.
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Safe Ignition: Place the walk-behind weeder on flat, cleared ground. Ensure the blade is not resting on thick weeds or rocks before pulling the recoil starter handle.
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Personal Protective Equipment (PPE): Operators must wear protective goggles, heavy-duty gloves, long work pants, and steel-toed boots to shield against flying debris.
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Operational Caution: Keep hands and feet clear of the under-deck discharge baffle at all times while the engine is running. Turn off the ignition before clear-outs.
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Terrain Limitations: Avoid operating on excessively steep or loose vertical inclines to mitigate the risk of machine rollover.
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Post-Use Storage Maintenance: Clean accumulated grass clippings from the blade and chassis after each use. For long-term storage in farm sheds, drain the remaining fuel to prevent carburetor gumming.
Why Choose Xinghu? — Your Trusted Garden Machinery Manufacturer
As a premier garden machinery manufacturer founded in 1995, Xinghu Power Machinery specializes in the R&D, heavy-duty production, and global marketing of high-end outdoor power equipment. With over two decades of industrial expertise, we provide international B2B buyers with comprehensive, factory-direct sourcing solutions across our entire product lineup, including our high-efficiency hedge trimmer series and advanced agricultural machinery.
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Factory-Direct & OEM/ODM Capability: We own and operate advanced manufacturing facilities, supporting fully customized OEM brand placements, structural modifications, and tailored configurations to meet diverse market demands.
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Rigorous Quality Control (QC): Every piece of machinery we produce undergoes strict factory inspections, multi-point pressure/load testing, and continuous mechanical operation checks to guarantee 100% stable quality and low maintenance rates.
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Global Export & Compliance: Backed by complete international export certifications, standard industrial packaging, and a reliable spare parts supply chain, we deliver seamlessly to wholesalers, distributors, and commercial contractors worldwide.


