Single Girder Overhead Travelling Crane

Single girder overhead travelling crane

 

Single girder overhead travelling crane is consisting of the beam, lifting mechanism, trolley travelling mechanism, crane travelling mechanism, cabin or hand controller,and electrical control system. Trolley can move horizontally on the rail .This type crane holds many characters of light structure, easy to install and maintain, which is typically used for either manufacturing or maintenance applications, where efficiency or downtime are critical factors, for instance, plants, warehouses, or material stocks. The beam adopts the whole type without welding, which structure is more reasonable and reliable.

 

 

The single girder overhead travelling crane power supply is introduced by the angle steel or trolley line on one side of the plant, while the electric hoist is powered by cables. The electric hoist and the whole crane are equipped with safety devices, such as lifting weight limiter, lifting limit switch, end limit switch, fire limit switch, etc.

This product is mostly used in machinery manufacturing, machinery assembly and warehouses, etc. Its structural characteristics are as follows:
 

Lifting Weight(t)	1				2				3				5				10				16				20
Span(m)	7.5	10	15	18	8	13	18	27	7.5	12	18	23	8	12	15	18	8	12	15	20	12	19	25	28	10	16	19	26
Working Speed (m/min)	Ground 20								Ground 30								Ground 20		Ground 30		Ground 20				Ground 20
Model of Electric Hoist	CD1 Model								MD1 Model								CD1 Model		MD1 Model		CD1 Model		MD1 Model		CD1 Model		MD1 Model
Lifting Speed(m/min)	8								8/0.8								7		7/0.7		3.5		3.5/0.35		3.5		3.5/0.35
Hoisting Height(m)	6,9,12,18,24,30 or Customized
Working Class	A3,A4
Electric Current	Three-phase AC 380V 50Hz or Customized

 

Metal structure part:
 

The main girder is generally welded by steel plates to form a box-shaped solid-web girder. The beam is also welded into a box shape with steel plates. For the convenience of storage and transportation, the main beam and the beam are connected with high-strength bolts.
 

Electric hoist:
 

The electric hoist can lift heavy objects and move longitudinally along the main beam on the lower flange of the I-beam under the main beam. The main varieties are CD1 and MD1.
 

For CD1 type, the lifting speed is 8m/min (when the lifting capacity is 10 tons, the lifting speed is 7m/min);
 

The MD1 type is a double-speed hoist with a lifting speed of 8 m/min and 0.8 m/min (when the lifting capacity is 10 tons, the lifting speed is 7 m/min and 0.72 m/min).
 

Standard lifting heights are 6m, 9m, 12m, 18m, 24m, 30m and so on. There are two types of hoist running speed along the main beam: 30m/min and 20m/min, generally 20m/min.
 

Operating mechanism:
 

This product adopts separate driving form, which is completed by a conical braking asynchronous motor, and the deceleration device adopts a "one open, one closed" gear reduction transmission.
 

Electrical equipment
 

The running motor of our products is a conical braking asynchronous motor. The electric hoist and the whole machine are equipped with safety devices, such as: lifting limit switch, cart end limit switch, etc.

 

 

Cabin, radio controller or hand controller can be used for operating. The cabin has seats inside.Floor adopts insulation pads and toughened glass for windows; extinguisher and fanareequipped. Otheraccessory equipments like air-condition, buzzer, interphone can be configured according to our client's request!
The travelling motor can be standard motor, soft start motor or work with frequency controller to meet the different speed
requirements.

 

 

Main Features of single girder overhead travelling crane:

 

 

1. Heavy Duty and High Efficient;

 

2. Suitable for any environment ( High Temperature, Explosion Proof and so on);

 

3. Long Life Span: 30-50years;

 

4. Easy for Installation and maintenance;

 

5. Reasonable structure and strong rigidity;

 

6. The speed can be frequency inverter speed control;

 

7. Control method is cabin control or remote control;

 

8. Depending on lifting cargo, crane can be equipped with hanging beam magnet or magnet chuck or Grab or C hook;

 

9. Crane is equipped with all moving limit switch, loading limit and other standard safety devices, to promise crane work safe.

 

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