The SA Series Hollow Output Shaft Helical Worm Gearbox is designed for industrial applications requiring compact installation, direct shaft mounting, high reduction ratio, and high torque output. Featuring a hollow output shaft structure, it enables direct mounting on machine shafts, reducing coupling components and installation space. Combined with a helical gear pre-stage and worm gear final stage, it delivers smooth operation, high load capacity, and optional self-locking performance. The s series gearbox is widely used in conveyor systems, mixing equipment, and rotary machinery where compact direct-drive installation is required. Output torque ranges up to 20,000 Nm, while input power capacities range from 0.12 kW to 90 kW depending on configuration.
| Item | Specification |
| Gear Type | Helical + Worm Combined |
| Mounting Type | Foot / Flange Mounted |
| Input Type | IEC Motor / Solid Shaft |
| Output Shaft Type | Hollow Shaft |
| Housing Material | High-Strength Cast Iron |
| Gear Material | Alloy Steel / Bronze Worm Wheel |
| Gear Surface Hardness | HRC58–62 |
| Transmission Efficiency | Up to 90% |
| Ratio Range | 10 – 5000+ |
| Output Torque | 80 – 20,000 Nm |
| Motor Power | 0.12 – 90 kW |
| Lubrication | Oil Bath Lubrication |
| Protection Class | IP55 (Optional IP65) |
| Ambient Temperature | -20°C to +40°C |
| Model | Ratio Range | Output Torque (Nm) | Motor Power (kW) |
| SA37 | 10 – 120 | 150 | 0.12 – 1.5 |
| SA47 | 15 – 200 | 300 | 0.18 – 4 |
| SA57 | 20 – 300 | 600 | 0.37 – 7.5 |
| SA67 | 30 – 400 | 1,500 | 0.75 – 15 |
| SA77 | 40 – 600 | 3,500 | 1.5 – 30 |
| SA87 | 50 – 1200 | 7,000 | 3 – 55 |
| SA97 | 80 – 5000+ | 20,000 | 5.5 – 90 |
