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Jas P Wilson > New Products > JAK 400C Excavator Tree Shear Grapple

JAK 400C Excavator Tree Shear Grapple



675 kg Weight
40 cm Max Cut Diameter
260-300 Bar recommended working pressure
14-30 t recommended base machine size
100 l/min recommended flow volume
Supplied with a bespoke hitch & hoses

JAK-400C is a new type of tree shear in our collection, where the cutting force is concentrated on the side of one clamping jaw.
This solution enables a lighter structure to allow smaller excavators to utilise this system, at a budget price.

This versatile tree shear model is the result of long-term product development and research. During the development process, the design of the tree shear has taken into account genuine experiential knowledge from our solid experience in wood harvesting, as well as insights from users. The JAK-400C tree shear has undergone rigorous testing in real and demanding conditions. As a result, we can be confident in its functionality even when considering new end-users.

We use hardness-classified Hardox® steel in manufacturing! Domesticity and the use of top-quality materials also contribute to a structure and reliability that lasts even in the toughest situations and conditions.


  • Excavators 14-30 T kg
  • Max. cutting Ø: 400 mm
  • Weight: 675 kg / 825 kg with optional extra collector (to allow for bunching of smaller diameter timber)
  • Opening: 766 mm
  • Measures: 1600 x 1050 x 560 mm / 1600 x 1050 x 800 mm with collector
  • Pressure: 260‐300 bar
  • Minimum oil flow: 100 l/min
  • Warranty 12months

Finnish Build Quality

These high quality machines are manufcatured by JAK-Metalli Oy in Finland. They specialise in the manufacture of attachments for forestry. They pride themselves on real world testing of their machines, whilst in development to ensure products which operators will find highly intuitive and productive. Each product is patented or otherwise protected. At the core of their business ethos is quality, and providing efficient products with excellent reliability and strong warranty back-up. JAK products are sold in over 30 countries worldwide, and Jas P Wilson’s are proud distributors for the UK & Ireland.

Fit this to a Forestry Guarded Harvadig Excavator

The HarvaDig Forestry Excavator system is an excavator based solution, converting standard excavators into forestry harvesting machines, whilst keeping their potential for other more typical plant tasks. JAK tree shears are one option, other implements include Harvesting heads (SP Heads or Keto Heads available), mulchers and stump grinders (FAE available), buckets, timber grapples (Botex available), cone splitters (Lasco available), post knockers, winches, brash rakes… the list is endless.

Tractor Forestry loader, Purpose-Built Forestry machine or Tele-handler? Not a problem

We have other models in the range, such as the ‘K’ range  200K and 250K models designed for forestry loaders, or even the ‘Z’ range suited to Tele-handlers. Please enquire regardless of your base machine, and our team will help find the ideal machine to suit.

Advanced Service Commitment

We have a national network of Regional Service Engineers in well stocked service vans to ensure you get the most from your machinery.
Our fully trained Engineers can carry out a wide range of services from warranty/breakdown support, annual servicing, training and testing to suit your needs.
Learn more about Service & Maintenance

Contact our product specialist Kris Wilson directly
01556 612 233
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