The core difference between single-speed (SK) and dual-speed (DK) remote controls is speed control capability.

Single-Speed Remote Controls

Start/stop only. Simple structure and lower cost, suitable for stable loads with low positioning requirements.

Dual-Speed Remote Controls

Two speeds: slow for precise positioning and lifting, fast for empty travel. This significantly improves efficiency and is the most common configuration for overhead cranes.

For VFD-equipped equipment, multi-speed or jog remote controls provide stepless speed adjustment.