Single Girder Semi Gantry Crane
Single girder semi gantry crane is developed from MH type gantry crane and LDA type bridge crane, it is a kind of rail travelling mid-duty type semi gantry crane, the one beam end traveling on wall mounted track(rail), another beam end traveling on ground track(rail), the capacity for 2t to 20t, span from 7.5m to 30m, using temperature should be within -20°--+40°.
This kind of single girder semi gantry crane is a general using gantry crane and widely used at open ground and workshops, plants to load, unload materials. It is combination of gantry crane and overhead crane, due to half of overhead crane design, need to travel on the rail of building, and half of gantry crane design, need to travel/move on the ground. It is widely used at conditions of warehouse to get more widely working space, or used inside warehouse work together with overhead crane to get highly working efficiency.
• With no demand for runway or rail structure.
• With no demand for concrete foundations.
• Good structure features: simple and compact.
• Light weight.
• For installation is easily and fastly.
• Easy maintenance
Design and Construction Rules
All the standards which are 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
-- 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
-- FEM 9.511 Mechanical group
-- FEM 9.661 Hoisting and traveling components size and quality standard
-- FEM 9.671 Wire rope quality standard/Chains 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-Semi gantry crane