¶ winch-assist machines
| Company | T-Mar Industries Ltd. |
| Country | Canada |
| Website | https://t-mar.com/ |
| Category | Harvesting & Extraction › Remote sensing & mapping |
Yarders (cable cranes) and other winches to move logs
¶ Overview
Winch-assist machines are purpose-modified or factory-configured forestry harvesting and forwarding machines equipped with a powered winch and cable system that connects the machine to a fixed anchor point — typically a large stump, deadman anchor, or dedicated anchor machine at the top of a slope — allowing mechanised logging operations to be conducted safely on steep terrain that would otherwise be inaccessible to conventional ground-based equipment. The winch maintains continuous tension in the tether cable as the machine traverses the slope, effectively counteracting the gravitational forces that would otherwise risk rollover or uncontrolled sliding, and on the steepest slopes the winch actively assists uphill travel by winding in cable as the machine climbs. Modern winch-assist systems such as the Konrad MOUNTY 4000, the Fixteri FX15a configuration, and systems produced by Syncro System and Sattler are electronically controlled, with load sensors and programmable tension management that automatically adjust cable force in response to real-time machine attitude data from onboard inclinometers. These systems have transformed steep-country harvesting economics by enabling the deployment of productive single-grip harvesters and forwarders on slopes between 35 and 50-plus degrees, terrain that previously required more costly cable yarder systems with higher labour inputs and more complex setup times. In Australia, steep terrain operations are particularly relevant in the mixed-species native hardwood forests of Tasmania and the plantation coupes of the Southern Alps region of Victoria, where significant timber volumes occur on slopes exceeding safe limits for conventional machines. Australian forest contractors and state agencies have been progressively adopting winch-assist technology, supported by Safe Work Australia guidance and state-level regulatory frameworks that specify minimum equipment standards, operator competency requirements, and risk assessment processes for steep slope mechanised harvesting, reflecting the industry's commitment to reducing the elevated injury and fatality risk historically associated with manual chainsaw falling on steep ground.
¶ Details
| Field | Value |
|---|---|
| Company | T-Mar Industries Ltd. |
| Country | Canada |
| Type | Company |
| FWPA RD&E | 4.0 |