Impact wrench DHW

DOA DHW 3034 / DHW 301 / DHW 501 - hydraulic impact wrench for the most demanding applications

DOA DHW is a professional range of hydraulic impact wrenches designed for extremely stressed bolted joints in industry, construction, railway maintenance, mining, energy, oil & gas sector and shipyards. Thanks to the hydraulic drive, it provides high torque without the need for a compressed air supply, a major advantage in cold environments, in the field or where a compressor is not available.

Models DHW 3034, DHW 301 and DHW 501 are designed to work with large bolts and nuts where reliable performance, durability and precise force control are needed. The adjustable torque of up to 3000 Nm on the DHW 3034 and DHW 301, and up to 5000 Nm on the DHW 501, allows use even on very hard and stiff joints.

Main Benefits

• High torque: up to 3000 Nm or 5000 Nm depending on model.
• Hydraulic drive: ideal where pneumatic tools are not suitable or possible.
• Adjustable torque control: for more precise work with bolted joints.
• 3-part impact mechanism: a robust solution for heavy industrial use.
• Rotation direction: easy loosening and tightening.
• Heat dissipating motor cover: greater durability for long term use.
• Ergonomic Ergal handle: strong, lightweight and durable design for a secure grip.
• Mechanical trigger with safety lock: higher safety when working.
• Underwater version available: suitable for professional diving and underwater installation work.

Appropriate use

• construction and industrial plants,
• railway maintenance and infrastructure,
• oil & gas applications,
• mining and mining operations,
• shipbuilding and structural assembly,
• cold working environments without available compressed air,
• underwater work in special version.

Model variants

• DHW 3034: 3/4" square, M14-M24 bolt range, max. torque 3000 Nm. Compact and powerful option for medium-heavy applications.
• DHW 301: 1" square, M18-M33 bolt range, 3000 Nm max. torque. Suitable for larger joints and heavier industrial applications.
• DHW 501: 1" square, M18-M36 bolt range, 5000 Nm max. torque. The strongest variant of the series for extremely stressed connections.

Technical Specifications

• DHW 3034: weight 7.6 kg, 3/4" square, M14-M24 bolts, max. 3000 Nm torque, idle speed 2800 rpm, oil flow 20-30 l/min, length 288.8 mm.
• DHW 301: weight 7.7 kg, square 1", bolts M18-M33, max. torque 3000 Nm, idle speed 2800 rpm, oil flow 20-30 l/min, length 288.8 mm.
• DHW 301: weight 7.7 kg, square 1", bolts M18-M33, max./min, oil flow 20-30 l/min, length 288.8 mm.
• DHW 501: weight 8.8 kg, 1" square, M18-M36 screws, max. torque 5000 Nm, idle speed 1700 rpm, max./min, oil flow 20-30 l/min, length 323.4 mm.

The DOA DHW hydraulic impact wrenches are the ideal choice where conventional electric or pneumatic tools are not enough. They offer high performance, precise control, rugged construction and the ability to be used in very demanding conditions - including underwater applications.