H427Harvester Head
- The H427 is a powerful harvester head for large trees
- Easy processing of big trees
- Wide 146.5 degree tilt angle
- Maximum cutting diameter 760 mm
- Feed force, max 40-43 kN
Confident handling
Take control of the largest trees with confidence. High frame provides support while felling and the 4 feeding rollers pull logs steadily through delimbing knives.
Measuring accuracy
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
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
| Specifications | ||||
|---|---|---|---|---|
| John Deere H427 Harvester Head |
Key specs
| Weight Without Rotator And Link | JD std 1650 / JD top saw 1840, WA std 1655 / WA top saw 1845 | |||
|---|---|---|---|---|
| Maximum Cut Diameter | 760 | |||
| Maximum Feed Speed | 5.9 m/s | |||
| Maximum Roller Opening | 720 |
Dimensions
| Width, Head Open | 1777 | |||
|---|---|---|---|---|
| Width, Head Closed | 1447 | |||
| Height Without Rotator And Link | 1779 std / 1870 top saw | |||
| Weight Without Rotator And Link | JD std 1650 / JD top saw 1840, WA std 1655 / WA top saw 1845 |
Felling/Cutting
| SuperCut 100S Saw Unit, Automatic Chain Tensioning | Standard | |||
|---|---|---|---|---|
| Maximum Cut Diameter | 760 | |||
| Length Of Saw Bar, max | 900 | |||
| Chain type | .404 | |||
| Chain speed | 40 |
Feed System, Four-Wheel-Drive
| Maximum Feed Force | 40-43 kN | |||
|---|---|---|---|---|
| Maximum Feed Speed | 5.9m/s | |||
| Maximum Roller Opening | 720 |
Delimbing
| Delimbing Knives | 4 moving, 2 fixed | |||
|---|---|---|---|---|
| Delimbing Diameter, Tip To Tip | 490 | |||
| Maximum Opening Upper Knives | 720 | |||
| Maximum Opening Lower Knives | 800 |
Hydraulic System
| Maximum Operating Pressure | 35 | |||
|---|---|---|---|---|
| Recommended Pump Capacity | 260-370 |
Optional Equipment
| Color marking | Yes | |||
|---|---|---|---|---|
| Color Marking | Yes | |||
| Stump treatment | Yes | |||
| Multi-tree handling (MTH) | Yes | |||
| Mense feed rollers | Yes | |||
| Moipu feed rollers | Yes | |||
| Steel thumbnail feed rollers | Yes | |||
| Steel V-profile feed rollers | Yes | |||
| Steel ribbed feed rollers | Yes | |||
| Chain and saw bar kits | Yes | |||
| Hydraulic hose kit | Yes | |||
| Top saw | Yes |
Tank volumes
| Color marking (L) | 4.3/4.3 | |||
|---|---|---|---|---|
| Chain oil (L) | 14,3 | |||
| Chain grease (kg) | 1,2 |