We completed an order for a set of 20t Electric Winch from Chile. The winch was sent from Qingdao, China, to Valparaíso, Chile. The winch of this order is JM electric winch. The JM electric construction winch is a slow speed winch. There are many models of this electric winch, and the large tonnage winch also supports customization. The working principle of the winch The motor drives the wire rope drum through the reducer, retracts and unwinds the wire rope, and changes the direction through different pulleys. The technical requirements are mainly the speed of the drum, that is, the movement speed of the wire rope and the safety and reliability of the braking system. The winch is a relatively simple lifting or traction machine. Because it is used on the construction site for a long time, it is necessary to understand the performance and model in detail before using it
Note:
| Rated capacity | t | 20 |
| Rope capacity | m | 50 |
| Rope diameter | mm | 48 |
| Speed | m/min | 10 |
| Working class | / | A3 |
| Power supply | V/Hz/Ph | 380V 50Hz 3Ph |
| Control method | / | Pendant control |
| Motor power | KW | 45 |
| Protection class | / | IP54 |
| Insulation grade | / | F |
| Working temperature | / | -20℃-+40℃ |
| Country of origin | / | China |
Design and Construction Rules
All the standards required for the cranes are the FEM standard, DIN standard and Chinese National standard.
Europe Main National Standards
-- 89/392/EEC standard (93/68/EEC)
-- 91/368/EEC standard
-- 73/23/CEE standard
-- "EMC" standard 89/336/EEC
-- EN 60204-1
-- EN 292 mechanical safety
-- ISO 2141
-- ISO 2766
International Standards
-- June 9, 1993 / Sept. 22, 1993 notice
-- July 29, 1992, 92-765, 92-766, 92-767 notice
-- DIN 5684
-- DIN 15400; DIN 15401
-- NFE 26-010
-- NFE 26-030
Technical Standards
-- FEM 9.511 Mechanical group
-- FEM 9.661 Hoisting and traveling components size and quality standard
-- FEM 9.671 Wire rope quality standard
-- FEM 9.681 Travel motor choice
-- FEM 9.682 Hoisting motor choice
-- FEM 9.755 Electric hoisting equipment
-- FEM 9.811 Electric crane standard
-- FEM 9.901 Hoisting components design reference
-- IEC 34-1 Traveling and allocation performance
-- IEC 34-5 Protection grade standard
-- IEC 947-5-1 Low voltage equipment
China Main National Standards
Design rules for cranes GB/T 3811-2008
Safety rules for lifting appliances GB 6067-2010
Common crane technical condition GB 7592-87
Crane-Overhead travelling crane and portal bridge crane
tolerances for manufacture and tracks laying GB/T 10183-2010
Crane-test code and procedures GB/T 5905-2011
General Bridge crane GB/T 14405-2011
Portal Crane GB/T 14406-2011
Crane & Lift Equipment Technical Performance and Acceptance Condition GB/T 17908-1999
Electrical installation and acceptation standard GBJ 232-82
Safety of Machinery - Electrical Equipment of Machines
Part 32: Requirements for hoisting machines GB 5226.2-2002
Electrical installation and acceptance standard GB 50256-96
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