Overhead Crane Destructive Test in Mongolia

Rated load 20t; while overload 27.7t

Time: June 5, 2019

Location: Ulaanbaatar City, Mongolia

Event: An LH-type electric double girder overhead crane with a rated load capacity of 20t is undergoing acceptance test.

Moment: 14:30

The crane test began.

After successfully passing the no-load operation, the crane statically loads the 20t steel plate hangings. After 10 minutes, the crane load moves back and forth and left and right. After strict testing by the test personnel, all aspects of the crane performed well and passed the tests smoothly.

Moment: 14:55

In order to verify the performance of the crane, the customer temporarily decided to increase the weight of the load for the destructive overload test.

The steel plate was slowly added to 24t, and the crane began to lift for static load test. Engineers and workers are hiding outside the factory, and they are far away from the gate, leaving only our engineers and testers to continue testing. 1 minute, 2 minutes, 3 minutes...10 minutes, the crane successfully completed the static load test. The hoist moves left and right, the crane moves forward and backward, and the crane successfully completes the 24t dynamic load test. Weihua crane successfully passed another test!

Time: 15:15

The trial is not over yet! Customer continue to increase weight!

24t, 25t, 26t... The weight of the hanging object finally stayed at 27.7t, and the crane started another challenge! The on-site personnel who had been hiding outside the factory slowly began to approach. Lifting and holding, everyone at the site is watching the state of the crane; the crane moves left and right, back and forth, and everyone's attention follows the test. In the end, Weihua lifted its expectations and succeeded in passing the challenge again!

The measurement of infrared instruments shows during the test, the degree of crown, side bends and other aspects of Weihua Crane have reached international standards. After the test, the entire system staff gave a thumbs up, and the manager said: OK! OK! Very Good!

http://www.weihuacraneglobal.com/news/Overhead-Crane-Destructive-Test-Mongolia.html 

Email: weihua@craneweihua.com

Gantry Crane for Subway Construction / Weihua Crane

With the rapid development of the economy, population and the rapid growth of motor vehicles, many cities have emerged a serious 'urban disease' - a large traffic jam. Subways come into being. Because the subway is comfortable, fast and convenient, it is becoming an important parts of transport in many urban cities.

With the fast development of subways, the construction machines, especially the cranes, are becoming an important role for the subway construction. Weihua has rich experience and many project cases on subway construction gantry crane.

subway construction gantry crane

Subway gantry crane for slag handling is used for subway tunnel construction. This crane is mainly responsible for the construction of the subway tunnel, lifting the dregs excavated by shield excavator to the ground. Features of subway slag gantry crane:

◆ variable span, improve crane utilization;

◆ cantilever detachable, more practical;

◆ running fast, high work duty, high efficiency;

◆ high lifting height;

◆ with special tilting spreader with automatically tipping.

1. The gantry crane for subway construction is used for dealing the dregs and site material handling during subway construction.

2. With the span-changed function of Min. step-length 100mm, this subway construction gantry crane is suitable for various working conditions.

3. The cantilever is detachable, also can preserve the cantilever interface which will be flexible for different working conditions.

4. There is lightning protection system, wind speed detection warning system.

5. The gantry crane for subway construction is equipped special spreader and realize the interchange of dregs bucket and the hook.

6. With the overturn hook, it realizes overturning the dregs at any position in the air. Overturning dregs system is controlled by the hydraulic which makes the overturning process more stable.

7. The trolley is rotatable, and can realize the front, side transporting dregs.

http://www.weihuacraneglobal.com/product/Gantry-Crane-for-Subway-Construction.html

Email: weihua@craneweihua.com

Dam Floodgate Gantry Hoist / Weihua Crane

The dam top floodgate gantry crane is mainly used for hydraulic equipment transport, installation and maintenance of hydroelectric generating units such as floodgates, trash rack etc.

Model MQ gantry crane can be divided into two kinds: unidirectional crane and bidirectional crane. The unidirectional hoist is fixed on the gantry frame. The Gantry runs along the track on the dam. And its service zone is a line, which can only be used to lift a gate of the same row, while the double direction gantry crane is with a trolley running perpendicular to the crane traveling. Thus, the double direction gantry crane can lift the floodgate or trash racks of different rows of upstream side and the downstream side.

dam top floodgate gantry crane

Features of Dam Floodgate Gantry Crane: 

1. Steel plate or box-type girder, electric driving motor of lifting mechanism, gear reducing hoist;

2. The operating mechanism of the crane is driven by the motor, and the closed operating room is mounted on the frame;

3. Running buffer device and windproof rail clamp are equipped under the gantry leg;

4. The spreader moves up and down along the gate slot or around the hinge of the gate;

5. The opening and closing of the gate in the movable water is related to the size of the load and the water hydrodynamic pressure;

6. For large span gate, it needs double lifting points and keep synchronization;

7. Large Lifting capacity, low speed, low work level, generally not more than 4 m / min, only for some quick gate, it can reach 10-14 m / min;

Dam crane hoist/crane can be mainly divided into two kinds according to their different structures.

1. Fixed type hoist: winding type, rack type, chain type, screw type and hydraulic type;

2. Mobile type hoist: gantry type, semi-gantry type, bridge and trolley type;

http://www.weihuacraneglobal.com/product/Dam-Floodgate-Gantry-Hoist.html
Email: weihua@craneweihua.com

Gantry Crane for Shield Tunneling Machine / Weihua Crane

Gantry crane for shield tunneling machine is used for lifting of the cutter and shield body of underground non excavation shield tunneling machine and the tunnel support segment in the process of the construction. The trolley of this gantry crane is a rotating disc adapts to the demand of different digging direction with flexible operation, perfect safety instructions and overload protection device system.

PLC frequency conversion adjustment system makes it easy to control every mechanism.

Gantry crane for shield tunneling machine

Features of Shield Tunneling Machine Gantry Crane:

1. Spreader with 360° rotation is fit for installation of cutter from different angles;

2. Double trolley mechanism is applied for lifting cutter by double trolley or lifting duct piece by single trolley;

Working Environment:

1. 3 phase A.C. 50HZ 380V

2. The temperature of the working environments is -20 ~ +45 degrees and.the Max relative humidity shall be less than 95%( with condensation);

3. Wind speed shall be less than 20m/s;

4. Working leave: A3, A4;

5. Special requests are available;

http://www.weihuacraneglobal.com/product/Gantry-Crane-for-Shield-Tunneling-Machine.html

Email: weihua@craneweihua.com

Boat and Yacht Handling Crane / Weihua Crane

Yacht handling cranes, also known as boat handlers. It is widely used in water sports games, yacht clubs, navigation, shipping and learning, etc. It can transport different tonnage (32 tons - 1000 tons) of boats or yachts from the shore dock for on-shore maintenance, repair or launching of new vessels.

Yacht handling cranes

The boat and yacht handling crane includes the following items: main structure, traveling wheel block, hoisting mechanism, steering mechanism, hydraulic transmission system and electric control system. The main structure is N type, which can transfer the boat/yacht with height surpass crane's height.

According to different requirements of our customers, the boat handling crane can handle different tonnage boats or yachts (10T-800T) from the shore side, it can be used for the maintenance on the shore side or can put the new boat into the water. This yacht handling crane has soft and firm belt to lift the boat and yacht so that it will never hurt the surface. This crane also can put the boat in sequence quickly with small gap between each two boat.

Features of Yacht Handling Crane:

1. For the crane traveling, this crane can move in diagonal direction, this boat and yacht handling crane also can steer in 90 degree and put the boat in any designated position according to requirements.

2. This crane can be adjusted the width of the main girder according to the boat in case to handling different side boat.

3. This yacht handling crane is of low expense, high performance, easy to operate and maintenance and so on.

4. Low cost on the daily operation, it adopts the soft and firm belt to ensure there is no harm to the boat when hoisting.

5. This boat crane can make the boat in order quickly; it also can adjust the gap between each boat according to different condition.

http://www.weihuacraneglobal.com/product/Boat-and-Yacht-Handling-Crane.html

Email: weihua@craneweihua.com

Weihua Crane and Parts Packing

The video shows the crane parts packing (Email: weihua@craneweihua.com) You can see the wooden case packing and Triangle steel and keel for the fix of wooden case and crane parts.

http://www.weihuacraneglobal.com/case/Packing-of-Electric-Hoists-and-Cranes.html

Metallurgy Overhead Crane with Rotary Fork Style Lifter

This is a double girder overhead crane (Email: weihua@craneweihua.com) for metallurgy industry. The hoist mechanism is a special sling - rotary fork style lifter. Yes, the fork lifter is rotatable with a rotary hoist trolley traveling on the bridge beams.

http://www.weihuacraneglobal.com/product/Overhead-Crane-for-Metallurgy.html