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Product Overview

Heavy-duty chainsaws engineered for professional forestry, timber harvesting, and municipal land management. Built for continuous operation under high-load conditions, our platform integrates high-torque two-stroke combustion engines or high-output brushless electric motors with rigid magnesium-alloy crankcases. Designed for international importers, tool distributors, and commercial equipment fleets requiring strict adherence to global safety and emission standards.

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Working Principle

The system converts chemical energy (gasoline-oil mix) or electrical energy (lithium-ion battery packs) into rotational mechanical force.

Power Generation:

High-output powerheads drive a centrifugal clutch that engages at a specific threshold RPM.

Drive Transfer:

The clutch drum spins the drive sprocket, engaging the cutting chain loops.

Cutting Action:

The saw chain travels along the guide bar at high linear speeds, utilizing precision-stamped cutter teeth to shear wood fibers and eject chips via the exhaust port.

Key Features

Magnesium-Alloy Crankcase:

Dissipates thermal loads rapidly while maintaining structural rigidity under high torsional stress.

Inertia-Activated Chain Brake:

Stops chain rotation within milliseconds upon detecting severe kickback energy.

Adjustable Automatic Oiler:

Positive-displacement plunger pump delivers continuous bar and chain lubrication matched to cutting speed.

Multi-Stage Air Filtration System:

Cyclonic pre-separation extracts heavy debris before air reaches the main pleated filter element, extending service intervals in dusty environments.

Spring-Assisted Anti-Vibration Buffers:

Isolates operator handles from engine and cutting frequencies to reduce operator fatigue during long shifts.

Materials & Construction / Components

Guide Bar: 40Cr alloy steel, induction-hardened rails for wear resistance.

Cylinder: Die-cast aluminum with nikasil-plated bores for thermal dissipation and low friction coefficients.

Piston: Dual-ring forged aluminum alloy featuring optimized skirt profiles to prevent scabbing under high operating temperatures.

Clutch Sprocket: Heat-treated carburized steel to withstand high chain tension loads.

Handlebar: High-impact PA6-GF30 polyamide composite with ergonomic overmolded grip zones.

Technical Specifications

Parameter	Specification (Gasoline Model - Pro Class)	Specification (Battery Model - Heavy Duty)
Engine / Motor Type	Single-cylinder, 2-stroke, air-cooled	Brushless DC permanent magnet motor
Displacement / Voltage	58.0 cc	56V / 82V nominal platform
Power Output	3.2 kW at 9,500 RPM	2.5 kW equivalent output
Bar Length Options	18 inch, 20 inch, 24 inch (45 cm to 60 cm)	16 inch, 18 inch, 20 inch (40 cm to 50 cm)
Chain Pitch & Gauge	0.325 inch / 3/8 inch pitch, 0.058 inch gauge	0.325 inch pitch, 0.043 inch / 0.050 inch gauge
Dry Weight (Powerhead)	5.6 kg	4.8 kg (without battery)
Fuel Tank Capacity	550 ml	N/A
Architecture Standard	Compliant electrical and mechanical architecture	Compliant electrical architecture

Applications

Commercial Logging:

Felling, limbing, and bucking medium-to-large timber in forestry operations.

Arboriculture:

Crown reduction, hazardous tree dismantling, and urban tree maintenance.

Municipal Infrastructure:

Emergency storm clearance, roadside brush control, and utility line clearance.

Construction & Timber Framing:

Sizing heavy structural timbers and site preparation.

Manufacturing & Quality Control

Die-Casting:

Automated cold-chamber die-casting machines ensure zero internal porosity in crankcase housings.

CNC Machining:

Five-axis machining centers finish cylinder ports and crankcase mating surfaces to within plus or minus 0.01 mm tolerances.

Dynamic Balancing:

Crankshafts undergo automated multi-plane balancing to restrict vibration output below 4.5 m/s squared.

Quality Verification:

100 percent hot-run testing verifies idle stability, maximum RPM output, fuel consumption rates, and ignition timing under simulated load.

Customization & OEM

Private Labeling:

Custom color injection molding for housing shells, laser-etched nameplates, and customized packaging boxes.

Specification Tailoring:

Configurable displacement sizes, custom guide bar lengths, and regional carburetor jet calibrations to match local altitude and fuel specs.

Accessories Bundling:

Option to package with specific saw chain profiles (full-chisel, semi-chisel), file kits, and PPE tool bags.

Selection Guide

For Forestry Distributors:

Recommend 50cc to 70cc gasoline configurations with 20-inch to 24-inch guide bars for sustained heavy felling tasks.

For Municipal Contractors:

Recommend high-torque battery platforms or 40cc class gasoline units for lower noise emissions and quick startup in urban environments.

Checklist for Bulk Orders:

Verify local regulatory requirements, preferred chain pitch standards (0.325 inch vs. 3/8 inch), and standard spare parts ratios (recommend 5 percent consumable parts kits including spark plugs, filters, and rim sprockets).

FAQ

Q: What are the minimum order quantities (MOQ) for custom branding?

A: The standard MOQ for custom housing color and laser-etched brand logos is 500 units per model. For completely custom mold redesigns or proprietary engine tuning, the MOQ starts at 2,000 units.

Q: Do your gasoline chainsaws comply with current international emission standards?

A: Yes. All commercial gasoline models utilize stratified scavenging engine designs that comply with major international emission limits. Full technical compliance documentation and official test reports are provided upon direct inquiry.

Q: What is the standard lead time and shipping arrangement for bulk wholesale orders?

A: Standard production lead time is 35 to 45 days following deposit confirmation and artwork approval. Peak seasonal orders may require scheduling 60 days in advance. Orders are shipped under standard international trade terms (FOB departure port or CIF destination port per client agreement).

Q: How do you handle spare parts supply for global distributors?

A: We provide a recommended spare parts list (RSPL) covering high-wear components—including clutch drums, guide bars, chains, oil pumps, and ignition modules—shipped concurrently with container loads to support local after-sales service.

Q: What warranty terms do you offer for commercial buyers?

A: We offer a 12-month commercial-use warranty covering structural defects in the crankcase, crankshaft, and cylinder block, alongside a 6-month warranty on ignition modules and carburetors.

Q: Can we request sample units for mechanical testing prior to bulk placement?

A: Yes. Sample units can be dispatched via air freight within 7 business days. Sample fees and freight costs are refundable against subsequent commercial bulk orders exceeding 500 units.

Zhenjiang Linhao Forest Fire Prevention Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of chainsaw in China, featured by quality products and low price. Please rest assured to wholesale customized chainsaw from our factory. Contact us for quotation and free sample.

chainsaw, Logging Motorcycles, Multi functional Cutting Chainsaw

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