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
•Steady performance.
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
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/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