Please note that the exact model number SP-107W by Sparta actually refers to their Rocking Dog clutch mechanism model, whereas the equivalent Twin Hammer mechanism model is designated as the SP-207W. Both are professional-grade 1/2-inch air impact wrenches widely distributed in India.
Here is a direct breakdown of how the Rocking Dog (SP-107W) and Twin Hammer (SP-207W) variants compare to help you clarify what you need:
Sparta 1/2″ Air Impact Wrench Specifications
Specification | Sparta SP-107W (Rocking Dog) | Sparta SP-207W (Twin Hammer) |
Clutch Structure | Rocking Dog | Twin Hammer |
No-Load Speed | 7,000 RPM | 8,000 RPM |
Air Consumption | 22.5 CFM @ 90 PSI | 205 L/Min (approx. 7.2 CFM) @ 90 PSI |
Material | Metal | Metal |
Primary Usage | General DIY, light assembly | High-torque industrial, automotive |
Key Performance Differences
- Clutch Impact: The Twin Hammer (SP-207W) delivers two impacts per rotation on both sides of the anvil. This provides a much smoother balance, faster torque delivery, and less vibration compared to the single-impact Rocking Dog (SP-107W).
- Efficiency: The Twin Hammer configuration is highly optimized for air consumption relative to its power output, making it the preferred design for continuous workshop use.