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DRG Stone Crushing Plant Motors
DRG stone crushing plant motors are designed for the highest-stress systems in heavy industry – crushers, screens, hoppers and conveyors. High-torque, dust-tight and vibration-damping, they cover 0.55 – 355 kW with a cast iron body and S1 continuous duty, shipped from stock.
General Technical Specifications
| Feature | Value / Description |
|---|---|
| Power range | 0.55 – 355 kW |
| Efficiency class | IE3 / IE4 / IE5 options |
| Voltage | 400 / 690 V |
| Frequency | 50 / 60 Hz |
| Speed options | 750 / 1000 / 1500 rpm |
| Frame material | Cast iron (GG20) |
| Insulation | Class F (155 °C) |
| Protection | IP55 |
| Mounting types | B3, B35, B5 |
| Duty type | S1 (continuous) |
| Noise | 63 – 75 dB(A) |
| Vibration | ≤ 1.8 mm/s (ISO 10816) |
| Certificates | CE – ISO – LVD – EMC – EAC |
Construction and Materials
- Body: cast iron (GG20) – high vibration resistance, long life
- Windings: 100% pure electrolytic copper, vacuum impregnated
- Rotor: squirrel-cage – high balance and torque transfer
- Fan: heat-resistant composite – dust-protected airflow
- Bearings: SKF / C&U high-temperature grease – for heavy loads
- End cover: thickened cast iron – impact-absorbing
- Paint: chemical-resistant electrostatic powder coat (RAL 7032 / 6028 / 5012)
High Torque, Low Vibration, Long Life
- High starting torque: smooth start for loaded crushers, hoppers and conveyors; low inrush, durable for start-stop operation
- Vibration resistance: thick cast body preventing resonance, G 2.5 balance standard, impact-absorbing bearing seats
- Long continuous operation: 24/7 full load; temperature rise < 75 K, max. winding temperature 110 °C
Noise, Vibration and Thermal Performance
Noise levels (dB(A)):
| Power range | Speed | Noise level | Test standard |
|---|---|---|---|
| 5.5 – 22 kW | 1500 rpm | 63 – 68 dB(A) | EN 60034-9 |
| 30 – 110 kW | 1500 rpm | 68 – 72 dB(A) | EN 60034-9 |
| 132 – 355 kW | 1500 rpm | 72 – 75 dB(A) | EN 60034-9 |
Vibration levels (RMS velocity – mm/s):
| Test standard | Value | Description |
|---|---|---|
| ISO 10816 | ≤ 1.8 mm/s | Normal operation |
| ISO 10816 (special balance) | ≤ 1.2 mm/s | Low-vibration geared systems |
Thermal design: max. bearing temperature 80 °C, max. winding temperature 110 °C, temperature rise < 75 K. Finned body increases heat dissipation.
Dusty Environment and Protection
- IP55: strong protection against dust and water
- Double-lip bearing seals: prevent dust and mud ingress
- Fan cowl: reinforced metal grille protection
- Paint coating: chemical-resistant, long-life powder coat
Quality Tests (Post-Production)
- Insulation and winding test (500 V Megger)
- Rotor balance test (G 2.5 standard)
- Noise test (EN 60034-9)
- Vibration analysis (ISO 10816)
- Thermal load test (2 hours at rated load)
- IP tests (dust, moisture, water tightness)
Applications
- Mobile and fixed crushing plants
- Screen motors
- Feed hoppers
- Conveyor belt systems
- Geared drive systems
- Dust collection fan motors
- Washing and pump units
Why DRG Stone Crushing Series?
- High starting torque – starts heavy loads easily
- Cast body durability – long life against impact and vibration
- Thermal balance for continuous (S1) duty
- Quiet, balanced rotor (G 2.5)
- Long bearing life – over 40,000 hours
- High efficiency – IE3, IE4, IE5 class options
- From stock – 0.55 kW to 355 kW
Delivery, Warranty and After-Sales
Standard ratings ship from stock, with short lead times for special windings and high power. All products carry a 2-year warranty, backed by nationwide service and spare-part support.
Request a Quote
Get a price for the power, speed, frame and mounting that fit your plant:
Quick quote on WhatsApp | +90 542 666 11 11 | Contact & Quote Form
For details on crusher and stone-crushing motors, see our crusher / stone crushing motors content.