Power stirrer Bosch GRW 12 E 1200 W, brushless motor, 1000 RPM, 12 N·m torque

Bosch GRW 12 E is a power stirrer engineered for mixing concrete, mortar and paint on construction and renovation sites. The unit uses a brushless motor with 1,200 W input power, step speed control and a 1,000 RPM idle speed to provide steady mixing performance. Designed to operate from a 230 V AC supply, the tool delivers up to 12 N·m of torque while weighing 5.3 kg and is supplied in a box for storage and transport.

Advantages

The brushless motor increases efficiency and reduces maintenance compared with brushed alternatives, while step speed control enables consistent results across a range of materials. The combination of high input power and controlled speed offers stable torque delivery during prolonged mixing tasks. The tool’s 5.3 kg weight balances portability and handling stability, and the boxed supply simplifies storage and transport.

Suitable for

• Mixing concrete and cement mortars for small to medium batches
• Preparing tile adhesives and leveling compounds
• Stirring paints, primers and coatings to uniform consistency
• On-site renovation and construction painting and patching tasks

Key specifications

• Motor type: brushless electric motor
• Input power: 1,200 W
• Idle (no-load) speed: 1,000 RPM
• Maximum torque: 12 N·m
• Supply voltage: 230 V AC
• Weight: 5.3 kg
• Delivery: supplied in a box

How to use

Secure the appropriate mixing paddle to the spindle according to the material to be mixed. Connect the power stirrer to a 230 V AC supply and set the step speed control to a low speed for initial wetting of dry materials, then increase speed as needed to achieve a uniform mixture. Maintain a steady, slightly angled position of the paddle in the bucket to minimize splashing and air entrapment. Allow the tool to run under load without forcing it; use short breaks in prolonged operation to avoid overheating and ensure consistent mixing.

Usage recommendations

Use appropriate personal protective equipment (gloves, eye protection and dust mask) when mixing powders and chemical-based products. Choose a paddle type and container size that match the batch volume to ensure efficient mixing. For viscous or heavy mixes, use lower speed steps and monitor motor temperature; allow the tool to cool if it becomes hot during extended use.