H 8 Wood Chippers

The Wood Chipper H-8 is a heavy-duty commercial timber and green waste chipping machine engineered to process tree trunks, heavy hardwood limbs, palm fronds, and dense logging slash up to 8 inches (200 mm to 205 mm) in diameter.

Built for demanding industrial arborist work, municipal land clearing, forestry thinning, and large-scale commercial tree removal, the H-8 provides high continuous throughput, heavy flywheel inertia, and aggressive crushing power to process broad branch crotches without requiring chainsaw pre-trimming.

• Maximum In-Feed Capacity: 8 inches (~200 mm to 205 mm) continuous timber chipping diameter.
• Cutting Rotor Assembly: High-mass, precision-balanced solid steel cutting flywheel or heavy cylindrical drum fitted with dual or quad reversible hardened alloy tool steel knives.
• Engine Output: Heavy-duty 50 HP to 75 HP Tier-compliant industrial turbo diesel engine delivering sustained torque under continuous load.
• Hydraulic In-Feed System: Twin horizontal high-torque, serrated hydraulic feed rollers with variable speed, down-pressure regulation, and electronic auto-reverse.
• Discharge Chute: 360-degree rotating discharge chute with tool-less multi-position deflector flap for loading high-sided transport tippers.
• Chassis & Running Gear: Heavy-duty single or tandem axle trailer with ADR-approved braking systems, or high-clearance steel/rubber tracked undercarriage.

• Throat & Timber Capacity: The H-8 increases the in-feed capacity to 8 inches (200 mm), easily swallowing entire canopy branches that would choke a 5-inch (H-5) or 7-inch (H-7) machine.
• Commercial Power Plant: Driven by a 50–75 HP industrial diesel engine, the H-8 provides the massive rotational kinetic energy required for continuous chipping of dense, knotty Australian hardwoods like ironbark, red gum, and stringybark.
• Aggressive Feed Geometry: The H-8 features larger-diameter, high-pressure hydraulic rollers that crush side forks and bushy lateral branches directly in the hopper, dramatically cutting labor time on the ground.
• Industrial Structural Weight: Fabricated with heavier-gauge chassis steel and wear-resistant throat liners to withstand daily multi-tonne processing.

The H-8 is specifically engineered to handle the toughest organic waste and forestry materials:

• Dense Hardwood & Softwood Logs: Whole trunks, large felled saplings, and eucalyptus branch up to 8 inches across.
• Bulky & Spreading Tree Limbs: Intricate canopy branches, broad tree crotches, and dense storm-damaged limbs without chainsaw trimming.
• Fibrous & Stringy Species: Difficult-to-chip materials such as palm fronds, willow, bamboo, and wet stringybark.
• Commercial Timber & Pallet Offcuts: Hardwood offcuts, broken pine shipping pallets, sawmill edgings, and construction timber scrap.

The H-8 utilizes an advanced microprocessor-controlled No-Stress auto-feed monitoring system:

• Magnetic pulse sensors continuously track flywheel/drum RPM in fractions of a second.
• When feeding large, dense 8-inch hardwood logs, any drop below the optimal engine torque RPM triggers an instant stop or micro-reverse of the hydraulic feed rollers.
• Once the engine regains full operating RPM, the feed rollers automatically engage and pull the log forward again.
• This automated feedback loop prevents engine stalling, eliminates drive belt glazing, prevents hydraulic overheating, and avoids costly blade-jam blockages.

Loose limbs, pruning debris, and green waste contain up to 85% to 90% air void space:

• Volume Reduction Ratio: The H-8 achieves compaction and reduction ratios between 8:1 and 12:1, condensing up to 12 truckloads of bulky branches into a single dense load of chipped wood.
• High-Value Chipping Output: Produces clean, dimensional wood chips ideal for commercial landscaping mulch, erosion control blankets, compost carbon bulking agents, and boiler biomass fuel.
• Significant Transport Savings: Maximizes truck payload weight, cutting site transport movements, labor hours, and tipping fee expenses.

The H-8 complies with Australian Machine Safety Standards (AS/NZS 4024 and forestry workplace safety protocols):

• Four-Sided Emergency Stop & Reverse Bar: A high-visibility, full-perimeter mechanical bump bar surrounds the hopper mouth, allowing an operator to stop or reverse feed rollers instantly from any position.
• Deep Ergonomic Safety Hopper: An extra-long in-feed hopper ensures an operator cannot physically reach the feed rollers or cutting blades with their arms extended.
• Dual-Channel Emergency Stops: Prominently placed mushroom E-stop buttons located at the top of the in-feed table and the central engine control cabinet.
• Positive Rotor Lock Pin: A heavy steel locking pin physically prevents rotor flywheel movement during knife changes and routine chamber maintenance.

• Road-Towable Highway Trailer: Heavy-duty single or tandem-axle configuration equipped with ADR-compliant electric or hydraulic brakes, LED road lighting, heavy-duty jockey wheel, and standard commercial pintle or ball tow hitch.
• All-Terrain Tracked Carrier: Rubber crawler tracks featuring proportional hydraulic controls, zero-turn manoeuvrability, and gradeability for steep embankments, rail easements, and wet forestry terrain.
• Heavy-Duty PTO Linkage: 3-point linkage mount driven directly by high-horsepower tractors (60–90+ HP PTO output) for council parks, orchards, and rural estates.

• Knives & Anvil Maintenance: Double-sided, heat-treated alloy steel knives should be inspected, reversed, or sharpened every 30 to 50 operating hours. Maintain the bed knife (anvil) gap precisely at 1.0 mm to 1.5 mm for a clean scissor-cut finish.
• Hydraulic System Servicing: Check hydraulic oil levels, inspect return-line filtration, and inspect high-pressure in-feed motor hoses for signs of wear or chafing.
• Drive Belt Tensioning: Check and adjust multi-band banded V-belts to ensure complete power transfer from the diesel engine without slippage.
• Bearing Lubrication: Apply high-temperature extreme-pressure grease to the main rotor shaft pillow block bearings and in-feed roller pivot pins on a daily or weekly schedule. Smart Waste Australia provides comprehensive scheduled maintenance programs, genuine replacement knives, and on-site emergency repair services.