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20" Forestry
Tree Shears
for Hydraulic Excavators
       
 
       
VIEW THE TREE SHEAR VIDEO

 


  • Dymax 20” Forestry Tree Shears are perfect tools for forest utility work, such as power line right-of-way maintenance.
  • A Dymax 20” Forestry Tree Shear with optional accumulator is ideal for thinning in small logging operations.
  • Dymax 20” Forestry Tree Shears feature double arm grapples that securely grab the tree as the shear arms are activated.
  • The Forestry Tree Shear is designed for machines with a minimum of 128 hp, minimum flow rate of 40-45 gpm and 44,000 lbs of operating weight.
  • Shearing cylinder is rated at 3,500 to 4,000 psi, and optimum results will be obtained near those levels.
  • Shear blade is comprised of 3/4” Hardox 400 high tensile steel and is easily replaced when worn.
  • Machine must be equipped with auxiliary valve, controls and hard lines.
  • Counterweight may be required on certain models of machines.
  • Contact Dymax sales for further information


A Dymax 20” Forestry Tree Shear with accumulator is installed on a 20 ton hydraulic excavator. Unit is used in clearing roadways and maintaining country road right-of-ways. Considerable time is saved and exposure to worker compensation claims from manual clearing is reduced. Shear can be equipped with either manual or hydraulic rotator.

 

The accumulator arm assembly seen above enables the operator to “bunch” cut trees when operating in smaller wood, thereby improving productivity.

 



Specifications

Cylinders
Number
Rod (in.)
Bore (in.)
Stroke (in.)
Shear
2
3.5
6
16
Double Grapple
1
2
4
8
Accumulator
2
2
4
8

Specifications and Dimensions
Forestry Tree Shear
Forestry Tree Shear
with Accumulator
Weight (lbs.)
5,350
6,110
Height (in.)
73”
90”
Width at shear arms (in.)
90”
90”
Overall depth (in.)
82”
80”
Shear blade material
3/4” Hardox 400
milled knife edges
3/4” Hardox 400
milled knife edges
Tower material
A-572
A-572
Hydraulics
Auxiliary valve, controls, hard lines
Auxiliary valve, controls, hard lines, Accumulator requires an electrical switch on the joystick

Materials and specifications subject to change without notice.


Form No. 1171 (1-00)

 
   
       
 
 
   


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