LD-Single Girder Overhead Crane
Under Running Crane
The LD type of under running overhead crane (also called bridge crane )is the most popular designing since the very beginning. Our annual turnout is 20,000 units for the whole market. The main girder adopts 6mm and 8mm thickness steel plate. Chinese workshop has a 1700mm clearrance above the rail, which is excellenct for the maintenance of the crane. In some Middle East countries, the clearance is less than this, and please indicate this data when you placing the order.
Steel Plate Cutting and Treatment
The board was cut by auto-cutting machine.
Main Beam
We reserve the concept of "safety factor", and remain the traditional main beam fabrication methord. Each of the beam is made by 6mm thickness of side board, and 8mm top and bellow board.
Bearing System
The reducer is hardtooth designing. Bearing is HA/WA/LUO 3 brands. Casting box type. The gear box is made by our factory in order to give a reliable quality. The market has many suppliers, and some of them can get 50% price than ours. However, we do not reduce the quality in order to reduce the cost.
Safety Device
Long travel limit switch
Cross travel limit switch
Counter-weight and pedal limit switch for hoisting
Pedal limit switch for lowing
Overload limit switch
End Trucks (Carriage)
Soft start driving system(380v only) makes the long travel smoothly, reduces noise. Modular system designing gives the crane more free working space. Unique conbinations with steel profiles sections for maximum distance between suspensions.
Double C-track Festoon System
4mm thickness national standard trackpull and push wheel with sealed bearing
Flat cable for strong life.
Electrical box has indication of working.
This double C-track festoon system makes the driver can be seperate from the hoist , so that give a maximum safety protection.
Hoist
The crane forms a complete set with CD1/MD1 electric hoist. Our Hoist Motor is a very part of electrical hoist. we choose the Nanjing Zongchang(Best in China) motor to provide you a best usig experience.it has the advantages of soft starting and outstanding electricity saving effect.
Our hooks are all forged under the national standard. we can assure you the good quality.
MD1 type electrical hoist add one more motor with lower output based on CD1type.MD1 type can adjust to the work need more accuracy. it can stop at your exact litfing position for you to operate
Technical Parameter
| Crane traveling mechanism |
Performance parameters |
| |
1-5t |
10t |
| Traveling Speed (m/min) |
20 |
20 |
| Reduction Ratio (i) |
38 |
38 |
| Motor |
type |
YES |
| power |
2×0.4 |
2×0.8 |
| Rotational speed |
1200 |
| Working System |
A5 |
| Power supply |
3phrase 380V 50Hz |
| Wheel diameter |
Ф200 |
| Width of Track |
37-70mm |
Notice:
As this kind of crane is customized, in order to offer you most suitable design and solution, please confirm following information when you send inquiry.
1. Lifting capacity.
2. Span length. (rail center to rail center)
3. Lifting height. (hook center to ground)
4. Do you need bus bar, rail from us?
5. Local power supply 380V 50Hz 3P?
6. Working condition: What goods to lift?
7. Drawings of working place would be appreciated.
Specification:
1. Capacity range: 0.5-20 ton.
2. Span length: 6-32m
3. Lifting height: 7.5-32m
4. Electric hoist: CD/MD Model.
5. Motors: Nanjing Zongchang (Best in China. )
6. Power supply: 380V/50Hz or as per client's requirement.
Safety feature:
1. Limit switch.
2. Overload stop device for hoisting.
3. Long bearing buffer for crane traveling.
4. Power faliure backup.
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