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Motors | SG Series
Three-Phase Asynchronous Motor For Stone Grinding And Cutting

Product Overview
Specialized three-phase asynchronous motors designed for stone grinding and cutting applications, featuring high starting torque, dust-proof construction and enhanced durability for harsh working conditions.
Key Features
- High starting torque exceeding 2.5 times rated torque for heavy load acceleration in stone processing
- Enhanced dust-proof sealing system preventing abrasive stone particles from entering motor interior
- Reinforced bearing assembly with extended lubrication intervals for continuous heavy-duty operation
- Thermal overload protection preventing motor damage during prolonged high-load cutting operations
- Robust cast iron housing providing mechanical strength and vibration damping
- Optimized cooling system maintaining stable temperature during intensive grinding work
- Special winding design tolerating frequent start-stop cycles common in stone cutting
- Corrosion-resistant coating protecting against water and coolant exposure
- Compact flange mounting for direct coupling to grinding and cutting spindles
Technical Specifications
| Power Range | 0.75 ~ 15 kW |
| Voltage | 380V / 400V / 415V |
| Frequency | 50Hz / 60Hz |
| Speed | 2900 / 1450 rpm |
| Starting Torque | > 2.5 x rated torque |
| Protection Rating | IP54 |
| Insulation Class | Class F |
| Duty Cycle | S1 continuous / S3 intermittent |
Applications
- Stone cutting and sawing machines
- Marble and granite grinding equipment
- Concrete cutting and drilling tools
- Tile processing and polishing machines
- Quarry stone extraction equipment
- Construction material processing
- Monument and sculpture carving
- Ceramic tile cutting and shaping
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