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Features

Delimbing Quality

H424 Harvester Head delimbing a tree in the forest

The ideal geometry of the harvester heads, along with advanced feeding, stem holding, hydraulics, mechanics and automation, ensure high delimbing quality.

Measuring Accuracy

Front view of H423 Harvester Head in the field

John Deere harvester heads provide the best measuring accuracy in the market. This is a result of seamless co-functioning of the technology of the harvesters and harvester heads – something that is characteristic of John Deere.

High Saw Performance

H425 Harvester Head grips a log in the forest

The John Deere-specific saw unit offers high cutting performance, thanks to the excellent automation, mechanics and hydraulics of John Deere. It also features easy saw chain change, reliable saw chain tensioner, and a wide range of saw bars and lubrication systems.

Specifications

Feed System, Two-Wheel-Drive

Gross Feed Force398-cc motors: 20 kN
Gross Feed Force398-cc motors: 4496.2 lb-ft
Maximum Feed Speed5.4 m/s
Maximum Feed Speed17.7 fps
Maximum Roller Opening440 mm
Maximum Roller Opening17 in.

Delimbing

Delimbing Knives3 moving, 2 fixed
Delimbing Diameter, Tip To Tip360 mm
Delimbing Diameter, Tip To Tip14 in.
Maximum Opening Upper Knives500 mm
Maximum Opening Upper Knives20 in.
Maximum Opening Lower Knives550 mm
Maximum Opening Lower Knives22 in.

Hydraulic System

Maximum Operating Pressure28 MPa
Maximum Operating Pressure4061.1 psi
Recommended Pump Capacity180-270 L/min
Recommended Pump Capacity47.55-71.3 gpm

Felling/Cutting

SuperCut 100S Saw Unit, Automatic Chain TensioningStandard
Maximum Cut Diameter520 mm
Maximum Cut Diameter20.5 in.
Length Of Saw Bar640 mm
Length Of Saw Bar25.2 in.
Chain Type404
Chain Speed40 m/s
Chain Speed131 fpm

Dimensions

Width, Head Open1150 mm
Width, Head Open45 in.
Width, Head Closed1025 mm
Width, Head Closed40.35 in.
Height Without Rotator and Link53.5 mm
Height Without Rotator and Link53.5 in.
Weight Without Rotator and Link750 kg
Weight Without Rotator and Link1653 lb.

Optional Equipment

Stump TreatmentYes
Multi-Tree-Handling (MTH)Yes
Mense Feed RollersYes
Steel Thumbnail Feed RollersYes
Steel Ribbed Feed RollersYes
Chain And Saw Bar KitsYes
Hydraulic Hose KitYes
Top SawNo

Tank Capacities

Color Marking1.4 L
Color MarkingYes
Color Marking0.4 gal.
Chain Oil6.5 L
Chain Oil1.7 gal.
Chain Grease1.2 kg
Chain Grease2.6 lb.