ELK 7.5 ton electric chain hoist with eletric trolley Type HKDM07503S 1. Side magnetic braking device 2. Light but durable chain bag 3. Electromagnetic contactor 4. Inverse phase sequence protecting device 5. Light aluminum alloy shell 6. Limit switch 7. Approved by CE&GS 8. Imported chain: FEC 80 9. Noise(single/dual speed): 81dB 10. ISO: M5 /FEM: 2AM Insulation grade: F 10. Protection class (hosit and push button): IP55 11. Highly effective, lightweight, easily-maintenance 12. High quality with most competitive price