Longlife Service Time Lfiting Trolley for Steel Single Girder Gantry Crane

Through adopting world-leading GBM driving unit independently developed, GBM lifting trolley is assembled by trolley frame through combining features of light weight, low height and simple installation and others. It can be widely applied in crane equipment in machine manufacturing, material handling, port, shipping, paper making, mine, nuclear power, building, wind power, offshore heavy industry and each other industries.

Compared with traditional trolley and European trolley, GBM lifting trolley achieves six following breakthroughs:
Performance comparison form between GBM crane and European and traditional cranes<
(Taking QD200t/50t-33m H=28m A3 as an example)

Contents for comparison	GBM crane	European weight-reduction crane	Domestic traditional standard crane
Working class	It can adjust and protect for A3-A8.	It can adjust for A3-A7, without protection.	It cannot adjust and protect for A3-A8.
Transmission mode	Simple	Complex	Complex
Wide range of speed regulation	Speed range is from 0.1 to 90m/min, speed regulation ratio can achieve 1:300	1:10 (maximum: 1:15)	Speed is not adjusted; 1:10 can be realized if frequency converter is added.
Light load and speediness	According to real-time weight, light load and speediness can be realized at section of constant power and secondary hook is canceled.	It cannot be realized.	It cannot be realized.
dead slow speed operation	Start dead slow speed operation function, control speed to be less than 0.2m/min. Accurate positioning can be realized, this can pvent too operation speed and avoid repeatedly positioning and avoid load knocking and scratch.	It cannot be realized. A few imported cranes have similar optional function, but performance cannot reach level of Gongbu.	It cannot be realized.
Distance inching	Start Distance inching function, set inching distance to be 1 to 3mm each time. This can guarantee steady load operation and realize high-pcision positioning. It is especially suitable for maintenance and pcise assembly of large mechanical equipment.	Distance inching cannot be realized. Inching causes impact.	Distance inching cannot be realized. Inching causes impact.
Synchronous control	Synchronous control of two sets or more of drive mechanisms can be realized.	Optional function, synchronous device needs to be added.	Optional function, synchronous device needs to be added.
Flexible startup and brake and zero-speed brake	Protect and pvent load from impact, prolong service life of crane steel structure and brake and other parts.	Zero speed brake cannot be realized.	All cannot be realized.
Multiple security protected mode	Safety brake and electromagnetic safety protection device. Even if safety brake fails, it also can protect load and avoid stalling and gliding.	If safety brake fails, object will stall and fall.	If safety brake fails, object will stall and fall.
Motor starting, without impulse current	Starting current is not more than work current of rated load, this can prolong service life of electricity and save investment of bus.	Starting current is 2 to 3 times of current of rated load. Frequent impact affects service life of electricity and operation of other equipments of same circuit and investment of bus will be big.	Starting current is 2 to 3 times of current of rated load. Frequent impact affects service life of electricity and operation of other equipments of same circuit and investment of bus will be big.
Efficient system and obvious energy saving effect.	Electricity is saved generally by more than 20%. Motor can run four-quadrant. Energy feedback can be realized, feedback efficiency is high, with good quality, meeting requirements of connecting network.	Compared with traditional one, it can save some electricity, but realized feedback efficiency is low and quality is poor.	Not save electricity
Start under load does not fall	It does not fall.	It falls a little.	It falls.
Self-learn with empty hook	Self-learn under load without needing to dismantle motor; self-learning parameter is accurate and is convenient to commission at the site.	Crane motor must be separated from reduction box before self-learning under load. It is not convenient for site commissioning.	Crane motor must be separated from reduction box before selfe-learning under load. It is not convenient for site commissioning.
"internet+" new function	Many functions such as crane work visualization, data collection, remote diagnosis, remote control, multi-machine linkage, unattended production line and seamless joint of production line can be realized.	Advanced European crane can realize.	It can not be realized.
Reserving function upgrading interface	Functions such as communication fault protection, automatic positioning, anti-sway and psetting action can be upgraded.	Reserving function interface cannot be realized.	Reserving function interface cannot be realized.