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Home Forestry News & Reports
Sponsored by John Deere

NEW H424 HARVESTER HEAD FOR LATER THINNING AND FINAL FELLING

5 months ago
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H424 harvester head

H424 harvester head

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The new H424 harvester head replaces the previous, best-selling H414. The H424 has a redesigned look. The changes based on customer feedback improve productivity, ease of service, durability, uptime, measuring accuracy and reduce daily operating costs. This model is also equipped with the new SuperCut 100S saw unit. The H424 harvester head is available for John Deere 1070G, 1170G and 1270G harvesters.

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The H424 is a medium-size harvester head designed for later thinning and final felling where the tree diameter at chest height is 150–430 mm. The H424 is also well suited for handling crooked wood and working on slopes. The harvester head’s robust structure, improved hose routing and easy access to service points have convinced customers.

H424 product improvements

The new PEVO valve improves the harvester head’s performance, adjustability and economy compared to its predecessor. Improved hose routing from loader to harvester head and from valve block to feed motors improves the durability of the hoses. The new hinged valve block cover makes daily maintenance easy. Grease points and the saw chain oil tank are also easier to access, and the greasing intervals have been extended compared to before.

The harvester head’s backwards tilt angle has been increased by 4°, which improves the grip of the stem in the grapple when feeding backwards and makes it easier to work on slopes. The fixed rear knife has been shortened for easier handling of crooked stems and hardwood. Also the placement of the rear delimbing knives has been changed to improve colour-coding accuracy. A more robust tilt frame for demanding conditions is available.

  • Cutting diameter 620 mm
  • Feed roller opening 640 mm
  • Feeding force 27 kN
  • Feeding speed 4.3-5.3 m/s
  • Weight starting at 1100 kg

New SuperCut 100S saw unit for all John Deere harvester heads.

In 2020, all John Deere harvester heads will have the new SuperCut 100S saw unit. The saw unit’s next-generation chain tensioning unit, automatic chain tensioning, and mechanical bar locking give it added efficiency and reliability. The improved chain release makes it easier to replace the saw chain. The new saw unit enables also a bigger selection in terms of saw motors and saw bars.

John Deere harvester heads are known for their productivity, reliability and measuring accuracy.

John Deere harvester heads are high performance tools that meet the industry’s stringent quality requirements in all working conditions. Harvester head testing is part of John Deere’s product testing process. Each harvester head model has been field-tested for thousands of hours before the start of serial production.

John Deere harvester heads are designed and manufactured in Finland.

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Tigercat allies with CM Labs for harvester and forwarder training simulators. CM Labs Simulations, the developer of Vortex® training simulators, has entered into a partnership agreement with leading forestry equipment manufacturer Tigercat Industries, headquartered in Brantford, Ontario, Canada. Under this agreement, CM Labs will develop and supply Tigercat with a series of state-of-the-art simulators that replicate the functionality and behavior of the 20-tonne Tigercat 1075C log forwarder and the Tigercat 1165 mid-sized wheel harvester. The forwarder is designed for demanding, high-production cut-to-length applications, while the Tigercat 1165 mid-sized wheel harvester is used for selective cut and final fell harvesting operations. Using simulators for training on these complex vehicles ensures risk-free, safe training for operators and decreases training time and costs, freeing up actual equipment for its work on the job site. “We are excited about this project because we’ve been able to integrate the PLCs of the forwarder and the harvester into our simulators,” said CM Labs Product Manager Julien Lanciault-Richer. “This is because Vortex enables the machine controllers to talk to our software.” One of the advantages of the machine controls on the simulator being identical to the actual equipment controls is that the operator will be completely at ease once he transitions from training. “This increases key learnings for the operator—and is safer from an operations perspective,” added Lanciault-Richer. In addition, both dealers and operators can be trained on new technology or functions available on their equipment. “We are delighted with CM Labs’ offer—in particular that they could bring our machine controls into the simulators,” said Tigercat’s VP of Engineering Jon Cooper. “The machine behaviour was just what we were looking for, along with the company’s innovative technology and its clear knowledge of the PLC for adaptability and evolution as we go forward. CM Labs will deliver a series of simulators to Tigercat, powered by smart training technology. Each will have three screens and a motion platform. “Our long-term vision is to work with CM Labs to support our training and sales—and to complete our cut-to-length portfolio with other simulators,” Cooper added. The partnership between CM Labs and Tigercat also involves co-marketing activities where the two companies will promote the use of simulators for safe and effective training and explore innovation in simulation for the forestry industry. The first of these activities is a forestry event hosted by CM Labs on February 18, 2020.

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