Dymax HPX21 Excavator Tree Shear
For 25T-36T Large Hydraulic Excavators. It’s the biggest feller of them all.
The Dymax HPX21 is a powerful tree shear attachment for large excavators that is used for taking down the biggest and toughest trees on the planet. The Dymax HPX21 excavator tree shear delivers up to 100 tons of shearing force and cuts trees like a hot knife through butter. With a maximum cut capacity of 21 inches (53cm) the HPX21 can easily cut trees of all types including hardwoods. Like most Dymax Excavator Tree Shears the HPX21 features continuous blade and arm support during the cut to increase durability and performance.
APPLICATIONS
- Tree Harvesting for pulp and paper applications
- Biomass harvesting
- General land clearing and site cleanup
- Roadside and Transmission Utility line right-of-way clearing
- Railway right of way clearing
- Hazardous fuels reduction on forested lands
- Plantation thinning and harvesting for Eucalyptus and Acacia
FEATURES & BENEFITS
- Cut up to 21-inch diameter hardwoods
- Continuous blade support during the cutting process
- Strong and durable grapples enable operators to place sheared trees into collection piles
- High-strength steel cutting arms with bolt-on replaceable 1.25in (32mm) thick cutting knives
- Bolted head plate for changing machine connections
- Heavy duty chrome plated shear arm pivot pin with replaceable bushings and seals
- 100 tons of shearing force
OPTIONS AVAILABLE
- 60°, 97° or 180° rotation solutions makes it possible to adjust to the tree during cutting and assists operators manipulating logs on the ground placing them into collective piles.
- Electro-hydraulic valve with an electrical switch kit for rotation is priced separately. If you only have (1) circuit, please visit with your Dymax sales representative.
- Spring loaded bunch & gathering arm for multi-stem clearing applications (DX-TS-FB models only)
SPECIFICATIONS
| SPECIFICATIONS HPX21 | ||||
| Model Code | Description | Excavator Machines | Weight lbs / kg | # of Auxiliary Circuits Required |
| DX-TS-FG-HPX21-HX-25T | Tree Shear – Forestry Grapple – HPX21 – Excavator – 25 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 1.25 inch AR400 cutting knives • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-240 Case-250 JCB-260 Caterpillar-324 Komatsu-PC240 Caterpillar-326 Caterpillar-325 Volvo-EC250 and other popular brands in class. | 6280 / 2848 | 1 |
| DX-TS-FG-HPX21-HX-30T | Tree Shear – Forestry Grapple – HPX21 – Excavator – 30 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 1.25 inch AR400 cutting knives • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-290 Case-300 Kobelco-295 Liebherr-934 Caterpillar-329 Caterpillar-330 Komatsu-PC300 Komatsu-PC290 Komatsu-PC308 Caterpillar-328 Caterpillar-335 Volvo-EC300 and other popular brands in class. | 6320 / 2867 | 1 |
| DX-TS-FG-HPX21-HX-36T | Tree Shear – Forestry Grapple – HPX21 – Excavator – 36 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 1.25 inch AR400 cutting knives • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-350 Hyundai-360 Hyundai-380 Komatsu-PC360 Volvo-EC340 Caterpillar-336 Volvo-EC355 Komatsu-PC390 Volvo-EC350 | 6420 / 2913 | 1 |
| Design and specifications are subject to change without notice. All weights listed are with the relevant top adapter plate with pins for fitting conventional pin grab coupler. For special application hookups please note that weight may be subject to change.
Base reference styles no rotation model – 6209D |
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ROTATION MODELS HPX21
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| Model Code | Description | Excavator Machines | Weight lbs / kg | # of Auxiliary Circuits Required |
| Model below features a single tilt cylinder to provide 30 degrees of rotation left and right. | ||||
| DX-TS-FGT-HPX21x60-HX-25T | Tree Shear – Forestry Grapple Tilt- HPX21 x 60° rotation – Excavator – 25 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 60 degree rotator; cylinder driven with slew ring • 1.0 inch AR400 cutting knives • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-240 Case-250 JCB-260 Caterpillar-324 Komatsu-PC240 Caterpillar-326 Caterpillar-325 Volvo-EC250 and other popular brands in class. | 6850 / 3108 | 2 |
| Model below features gear driven slew drive with motor for 180 degrees total rotation. This model requires a drain line for the rotational circuit. | ||||
| DX-TS-FGT-HPX21x180-HX-30T | Tree Shear – Forestry Grapple Tilt – HPX21 x 180° rotation – Excavator – 30 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 180 degree rotator system • 1.0 inch AR400 cutting knives • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-290 Case-300 Kobelco-295 Liebherr-934 Caterpillar-329 Caterpillar-330 Komatsu-PC300 Komatsu-PC290 Komatsu-PC308 Caterpillar-328 Caterpillar-335 Volvo-EC300 and other popular brands in class. | 6966 / 3160 | 2 |
| Model below features a 97 degree rotation system with twin cylinders. | ||||
| DX-TS-FGT-HPX21x97-HX-36T | Tree Shear – Forestry Grapple Tilt- HPX21 x 97° rotation – Excavator – 36 ton • 21 inch max capacity diameter (51cm) • HPX frame group • 97 degree rotator; twin cylinder driven with slew ring • Rotates left and right 48.5 degrees • 1.25 inch AR400 cutting knives DY50705 • 6.0×16 cylinders • Twin shear arms with dual grapples • Chromed plated pivot pins and bushings • Bolted excavator head plate with adapter and pins |
Made to fit Case-350 Hyundai-360 Hyundai-380 Komatsu-PC360 Volvo-EC340 Caterpillar-336 Volvo-EC355 Komatsu-PC390 Volvo-EC350 | 7450 / 3379 | 2 |
| Design and specifications are subject to change without notice. All weights listed are with the relevant top adapter plate with pins for fitting conventional pin grab coupler. For special application hookups please note that weight may be subject to change.
Base reference style 60° rotation model – 6210D |
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HYDRAULIC REQUIREMENTS
| Model Code | Primary Circuit (Shear) | Primary Circuit Flow (Shear) | Rotation circuit requirements | Drain Line |
| DX-TS-FG-HPX21-HX-25T | Two-way flow | Flow 40-45 GPM @ 4,000 psi | ||
| DX-TS-FG-HPX21-HX-30T | Two-way flow | Flow 40-45 GPM @ 4,000 psi | ||
| DX-TS-FGT-HPX21x60-HX-25T | Two-way flow | Flow 40-45 GPM @ 4,000 psi | Two way flow; Flow 10-15 GPM @ 3,000 psi | |
| DX-TS-FGT-HPX21x97-HX-36T | Two-way flow | Flow 40-45 GPM @ 4,000 psi | Two way flow; Flow 10-15 GPM @ 3,000 psi | |
| DX-TS-FGT-HPX21x180-HX-30T | Two-way flow | Flow 40-45 GPM @ 4,000 psi | Two way flow; Flow 10-15 GPM @ 3,000 psi | X – YES For rotate motor drive |
