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Hunter FellFlex Felling Heads

Safe, efficient, and maximally productive—that is the Hunter FellFlex felling clamp. Purposefully developed with the unique Smartbox and its linked main components, resulting in a unique structural design. Of course, the Hunter FellFlex felling clamp is not complete without our accurate and comprehensive service and custom safety training.
You can also turn to Hunter for the annual inspection. The user is always the focus in the development of Hunter machines. That’s why the Hunter FellFlex is built on a robust base chassis with guaranteed protection.
We provide advice and support in selecting the main components, including those from the Hultdins brand.
The final product is always designed for maximum ease of maintenance, minimizing costs, wear, and downtime.

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Hydraulics

To properly operate the Hunter FellFlex, the following functions are required:

  • 1x double-acting function for rotation
  • 1x double-acting function for opening and closing the clamp
    If the FellFlex is equipped with a saw box
  • 1x double-acting function with pressureless return to tank (hammer function) (This can be achieved with a 6/2 valve if the machine only has two available functions.)

Automatic Chain Tensioner

The saw unit features proportional chain lubrication and an automatic chain tensioner. This improves cutting performance and reduces wear on drive sprockets, nose sprockets, and chains. Additionally, the risk of a too loose or too tight chain, which could pose safety hazards, is eliminated.

Best-Quality Saw Unit by Hultdins

Our experienced technicians carefully adjust the saw unit according to your crane's specifications, creating a perfect synergy between the carrier and the Hunter FellFlex. We emphasize maximum chain speed combined with the pressure at which the saw blade engages the trunk. The operator can easily adjust this pressure using an external valve. The faster the saw blade cuts through the trunk, the sooner the operator gains full control. This is one of the factors that sets us apart from the competition.

Expander Pins/Bushings

The Hultdins grapple is equipped with expander pins/bushings on all rotating parts. This ensures that forces generated within the clamp are properly absorbed by the designated components. Over time, every clamp develops play—this is simply inevitable. However, with adjustable expander pins/bushings, this play can be easily corrected, significantly extending the machine’s lifespan. After all, "play creates more play."

Replaceable Teeth

Since the Hunter FellFlex is not only used for felling trees and branches but also functions as an excellent log sorting clamp, we choose to keep the shell sections smooth (without teeth). Only essential teeth are placed in the "belly" of the clamp, providing sufficient grip and stability when cutting both thick and thin branches/trees. These teeth do not obstruct sorting and moving logs. The teeth are easily replaceable when they wear out over time.

Technical Specifications

Hunter FellFlex RGS812T

Base Machine Weight 8-12 tons
Clamp Opening 148 cm
Max. Working Pressure 250 Bar
Tip-to-Tip Clamping Force 14,6 Kn
Safety Load-holding valve with accumulator
Torque 15.150 Nm
Quick Coupler (Standard) CW10
Quick Coupler (Custom) On request
Hydraulic Hoses for Base Machine Connection On request
Hydraulic Rotation 30-60L 180 Bar
Hydraulic Clamp 30-50L 250 Bar
Weight 525 kg
Saw Option (Extra)
Saw Bar Length 70-80-90 cm
Hydraulic Saw Unit 70-110L 350 Bar
Weight: 690 kg

Hunter FellFlex RG1218

Base Machine Weight 12-18 tons
Clamp Opening 183 cm
Max. Working Pressure 350 Bar
Tip-to-Tip Clamping Force 27 Kn
Safety Load-holding valve with accumulator
Torque 14.090 Nm
Quick Coupler (Standard) CW30
Quick Coupler (Custom) On request
Hydraulic Hoses for Base Machine Connection On request
Hydraulic Rotation 30-60L 180 Bar
Hydraulic Clamp 50-120L 350 Bar
Weight 955 kg
Saw Option (Extra)
Saw Bar Length 80-90-(100 optional) cm
Hydraulic Saw Unit 110-170L 350 Bar
Weight: 1120 kg

Hunter FellFlex RGS1520

Base Machine Weight 15-25 tons
Clamp Opening 223 cm
Max. Working Pressure 350 Bar
Tip-to-Tip Clamping Force 33 Kn
Safety Load-holding valve with accumulator
Torque 14.090 Nm
Quick Coupler (Standard) CW30
Quick Coupler (Custom) On request
Hydraulic Hoses for Base Machine Connection On request
Hydraulic Rotation 30-60L 180 Bar
Hydraulic Clamp 50-120L 350 Bar
Weight 1.085 kg
Saw Option (Extra)
Saw Bar Length 80-90-(100 optional) cm
Hydraulic Saw Unit 110-170L 350 Bar
Weight: 1250 kg

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Hunter FellFlex