DOUBLE HEAD
DH4
The DH4 is a double-head system: two gearboxes head the casing and the inner rod independently. This size is designed to fit standard carrier devices.

DH4
X-Series integrated
OVERVIEW
| WEIGHT | 185 – 215 kg |
| TRACTION | 100 kN |
| TORQUE | up to 5000 Nm |
| ROTATION | up to 192 min⁻¹ |
| PERCUSSION FREQUENCY | up to 3000 min⁻¹ |
TECHNICAL SPECIFICATIONS
Gear box 1 / Casing RH4X
| Motor type | 103 | 103 | 105 | 105 |
|---|---|---|---|---|
| GEAR | 1 | 2 | 1 | 2 |
| TORQUE · Nm | 3300 | 1650 | 5000 | 2500 |
| ROTATION · min⁻¹ | 96 | 192 | 64 | 128 |
| p = 200 bar · Q = 100 l/min | ||||
Gear box 2 / Inner rod RH2X
| Motor type | 87 | 87 | 88 | 88 |
|---|---|---|---|---|
| GEAR | 1 | 2 | 1 | 2 |
| TORQUE · Nm | 1740 | 860 | 2120 | 1060 |
| ROTATION · min⁻¹ | 92 | 184 | 75 | 150 |
| p = 200 bar · Q = 50 l/min | ||||
Option percussion unit
| Type | 10 |
|---|---|
| OPERATING PRESSURE · bar | 140 – 180 |
| OIL CAPACITY · l/min | 25 – 40 |
| SINGLE BLOW ENERGY · Nm | … 180 |
| NO. OF BLOWS · min⁻¹ | … 3000 |
Options
| Hydraulic, electric or manual shifting |
| Mounting plates |
| Floating spindle |
| Percussion unit type 10 |
| Drilling accessories |
DIMENSIONAL DRAWING

IMPRESSIONS FROM THE FIELD

