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JAK-300B is our most robust tree shear for excavators. It is designed for use on excavators weighing more than 12 tons (26455 lbs). Due to its size, JAK-300B is ideal for felling larger trees in particular, but it is also ideal for clearing smaller crops.

Designed for use in large scale excavators, JAK-300B cuts the wood to be harvested neatly and precisely at the desired point from ground level. However, the efficiency of this tree shear is best noticed when faced with something more challenging than usual. Namely, JAK-300B also cuts larger trees effortlessly up to a thickness of 30 cm (11,8 in).

The jaws of the JAK-300B take an unmistakable grip on any wood. The wood that is firmly pressed by the shear is neatly cut thanks to the cutting blade. With the wide opening of the shear, several trees can also be cut at once, and the cutting force of the shear does not clot even with high mass. The high profile of JAK-300B ensures a firm grip on the wood during handling.

If necessary, the cutting blade can also be removed, in which case the tree shear acts as a wood grapple.


  • Weight: 570kg (1256 lbs)
  • Cutting diameter: 300 mm (11,8 in)
  • Working pressure: 250-300 bar (3 625-4 351 psi)
  • Minimum oil flow: 60 l/min (15,8 gal/min)
  • Opening: 840 mm (33 in)
  • Height: 670 mm (26,3in)


  • Common excavator attachments
  • In special order by customer’s machine type

JAK-300B Tree shear features

➔ CE approved
➔ Made in Finland
➔ Two-year warranty
➔ Removable blade
➔ Powerful and durable
➔ High profile

Watch the JAK-300B Tree shear presentation video

The video introduces the operation of JAK-300B in a variety of ways. As you can see from the video, the tree shear cuts the trees from the desired point high or just above ground level. The optional collector for JAK-300B also seen on the video allows multiple trees to be collected and cut without additional and time-consuming trajectories.

JAK-300B looking for its match

JAK-300B is a true heavyweight champion in its class, not afraid of challenges or hard work. JAK-300B is designed especially for heavy professional use, and its quality has not been compromised. JAK-300B is the best tool for a large scale excavator when clearing work is to be carried out efficiently without interruptions.

If the tree shear is to handle wood of different sizes efficiently, JAK-300B is a real trend setter. It makes it easy to handle all types of energy wood harvesting, as JAK-300B does not clot even on thicker trunks. It is clear that the efficiency of energy wood collection depends to a large extent on the quality of the equipment used for it. That is why we want to make sure JAK-300B does this in the best possible way.

The requirements for a high-quality and efficient energy tree shear are set very high among professionals. Thus, JAK-300B has been developed in close cooperation with mettlesome industry professionals, which has enabled us to ensure its quality and performance even in real conditions. We have also noticed that JAK-300B has gained its place on the market and its quality is trusted by more and more industry professionals.

The superior cutting power and durability of the JAK-300B tree shear are proven to be world class. For this reason, we are especially proud to use SSAB’s prestigious Hardox steel as the base material for our products. “Hardox In my Body” guarantees that our tree shears are made to last.

JAK-300B Tree shear accessories

The use of the tree shear can be diversified by equipping it with the following accessories:

Collector B/R-series

For B and R-series JAK Tree Shears

The Collector increases the productivity of the tree shear significantly. With the help of the collector, unnecessary movement is eliminated, and with this, speed and efficiency increase considerably.

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For Excavator JAK tree shears

Tilter brings more agility, efficiency, and new working angles to the use of the JAK tree shear when working with an excavator.

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Electrically operated 6/2-directional valve E6234

For JAK-300B, JAK-300R, JAK-300C and JAK-400C Tree Shears

By using an electrically operated 6/2-directional valve, you can divide one hydraulic function into two when using a tree shear.

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Cable Control

With electrically controlled 6/2-directional valves for hydraulic control

Cable control is used to control an electrically operated 6/2 directional valve to move functions to different hydraulic lines.

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Radio Control

For wireless control of hydraulics with electrically operated 6/2 directional valves

With radio control, it’s easy to control an electrically operated 6/2 directional valve to move functions to different hydraulic lines.

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Felling support

For B and R-series JAK tree shears

The felling support raises the height of the impact plate of the JAK tree shear and thus ensures firm control of the wood.

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Coupling options for Excavators

For B, C and R-series JAK Tree Shears

All the most common excavator coupling options are available for our tree shears. Some uncommon options are available upon request, depending on the customer’s machine type.

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Solid Extension

For B, C and R -series JAK Tree shears

Solid extension brings additional reach to the work, which increases cost-effectiveness and speed. With the solid extension, the delicate parts, especially the rotator, can be kept safe from the branches of trees.

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Cylinder Options

For B, K and R-Series JAK Tree shears

Various cylinder options are available for the JAK Tree Shears, depending on the customer’s needs and the characteristics of the machine.

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Two-year warranty

Our products have reached their current shape based on experience gained in heavy use and long-term research. Because we know what our tree shears are capable of, we are also able to give our products the best warranty on the market.

Our products are the best choice for those who appreciate the efficiency and quality of work. There is only one JAK!

Images of JAK-300B Tree shear


For more information, please contact us or your nearest distributor.

Here you can find the full list of our country-specific distributors ➔


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