Bosch GRW 140 Professional is a high-power, durable stirring mechanism designed for professional scenarios such as construction, painting, and industrial material mixing. It focuses on efficient handling of large-volume, high-viscosity materials (e.g., concrete mortar, paint, adhesives) and integrates user comfort with intelligent protection, making it suitable for long-term heavy-duty mixing tasks. Below is a detailed breakdown of its core attributes:
1. Core Features
High-Efficiency Mixing Performance
1400 W High-Power Motor: The robust motor delivers strong torque to tackle heavy mixing tasks—e.g., stirring thick concrete mortar or uniformly blending pigment into large batches of paint without stalling. Its high power ensures faster mixing cycles, reducing the time spent on each batch compared to lower-wattage stirrers.
Stepless Speed Control: The speed can be adjusted smoothly from 0 to 650 rpm via a variable-speed trigger. For example, low speeds (200—300 rpm) are used for mixing high-viscosity adhesives to avoid splashing, while high speeds (500—650 rpm) are ideal for thinning paint or blending low-viscosity coatings.
Intelligent Maintenance & Durability
Carbon Brush LED Lifespan Indicator: A built-in LED light illuminates when the carbon brushes are approaching the end of their service life (typically after 500+ hours of use). This proactive reminder eliminates unexpected downtime from worn brushes and simplifies maintenance—users can replace brushes in advance instead of troubleshooting sudden motor failure.
Robust Gearbox & Motor Protection: The all-metal gearbox is designed for heavy loads, with heat-treated gears that resist wear during long-term use. Additionally, a thermal overload protector automatically shuts off the motor if it overheats (e.g., from mixing overly thick materials for extended periods), preventing permanent damage.
Ergonomics & Safety for Long-Term Use
Ergonomic Wheel-Shaped Handle: Unlike traditional straight handles, the wheel-shaped grip fits the natural contour of the hand, distributing pressure evenly across the palm. This design reduces hand and arm fatigue during hours of continuous mixing (e.g., preparing mortar for an entire wall) and allows for precise control when adjusting mixing angles.
Soft Start Function: The motor starts gradually instead of abruptly, preventing material splatter at startup (a common issue with high-power stirrers) and reducing sudden torque on the user’s arm. This also protects the mixing shaft from accidental bending caused by sudden jolts.
Constant Speed Control: The stirrer maintains a consistent speed even when the motor is under load (e.g., when the mixing shaft encounters thick material clumps). This ensures uniform mixing quality—critical for materials like mortar, where uneven consistency can affect construction strength.
2. Application Scenarios
Ideal for professional users (construction workers, painters, industrial mixers, renovation contractors) in scenarios such as:
- Construction Sites: Mixing concrete mortar, tile adhesive, or grout for wall/floor tiling; blending cementitious coatings for exterior walls.
- Painting & Decoration: Mixing large batches of latex paint, enamel, or decorative coatings; uniformly dispersing pigments or additives into base paints.
- Industrial Workshops: Stirring chemical adhesives, resin mixtures, or low-viscosity industrial coatings (compatible with anti-corrosion shafts for chemical resistance).
3. Optional Accessories (Commonly Used)
- Bosch Professional mixing shafts (e.g., spiral shafts for mortar, paddle shafts for paint, hexagon shafts for high-viscosity materials).
- Carbon brush replacement kits (original Bosch parts for maintaining motor performance).
- Protective carrying case (for storing the stirrer and shafts, preventing dust accumulation and damage during transport).
| Rated input power |
1400 W |
| Weight |
4.2 kg |
| Bit holder |
M14 |
| Voltage, electrical |
230 V |
| No-load speed, 1st gear |
480 rpm |
| No-load speed |
480/750 rpm |
| Max. torque |
10.0/7.0 Nm |
| Stirrer basket diameter max |
140 mm |
| Sound pressure level |
95.5 dB(A) |
| Sound power level |
103.5 dB(A) |
| Uncertainty K |
3 dB |
| Vibration emission value ah |
2 m/s² |
| Uncertainty K |
1.5 m/s² |
Models Available
- Bosch GRW 140 Professional stirring mechanism
Packaging & Weight specifications
- Dimension: 343 * 202 * 321 mm
- Weight: 4.2 kg
Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.
Product Manuals & Downloads
Machine-Win
