Zweiträger-Laufkran 20ton

LH Double Girder Bridge Crane

• Lifting capacity: 1~20ton
• Span length: 7.5m~31.5m
• Lifting height: 6m~30m
• Lifting speed: single speed, dual speed, 
• Travel speed: single speed, dual speed, variable speed(by frequency converter)
• Usage: widely used in plant, workshop, warehouse, materal stock, etc.
• Control mode: Pendant panel, Radio remote control.

• Capacity from 5t~550ton(standard)

• Lifting Height: 16m-26m(can custom-sized)

• Span: 10.5m-31.5m (can custom-sized)

• According to the use grade and load up condition, working class can be divided to A5, A6.
• Control mode: Pendant panel, remote control, cabin room.

• Control mode: Cabin, pendant, remote.
• Work duty: A6~A7
• The electromagnetic chunk is suspended under the hook directly, which is in order to dismount and maintenance conveniently.
• The electromagnetic chunk adopts to cable drum to supply power independently.
• With a protection function of magnetic, it can prevent clog from falling when it is in sudden power failure.

Ladle/foundry Bridge Crane

• Mainly used at the metallurgy and foundry place where the molten metal is lifted.
• QDY Capacity: under 75ton, YZ capacity: above 75ton.
• Working class of complete machine is A7~A8.
• Thermal-protective coating is added at the bottom of main girder.

QZ Double Girder Grab Bridge Crane

• Heavy duty, work level : A6.
• Rated lifting weight includes dead weight of grab.
• Walkway entrance way into the cab: from the end, from the side, from the top.
• Grab opening direction: parallel to or perpendicular to main beams.
• Extract device is a double drum four-rope grab, with simple structure, reliable work. Grab could open and close at any height.
• Grab only applies to granular materials in natural piled state, crawling underwater materials or special materials shall be specially made when ordering.

1. Motor

Motor adopts YZR series crane special use winding rotor three-phoase asynchronous motor. YZR series motor is suitable for driving various kinds of hoisting machinery and metallurgy auxiliary equipment, with high overload capacity and mechanical strength, especially for short-term or intermittent operation, frequent start-up, braking and significant vibration and impact of equipment. Motor protection grade is IP54, insulation grade is F class.

2. Reducer

All speed reducers in our company have installed oil receiving device to avoid the oil stain caused by oil change. The soft tooth surface reducer is the most advanced common structure design, with the steel plate welding, the gear is high quality low carbon alloy steel, widely used.

3. Brake

Adopt YWZ series hydraulic brake, this series brake uses pusher as the actuator of the brake, electric hydraulic booster is a kind of integrated motor, centrifugal pump, oil cylinder, and very compact drive control device. Mainly used for mechanical braking of mechanical driving devices such as lifting transportation, metallurgy, mining, port and building.

4. Hook block

It consists of hook and pulley. The hook material is DG34CrMo. The pulley material is Q235 hot-rolling. It adopts anti-friction roller bearing, the hook can be 360degree rotation. It is equipped with spring-pressed safety lock, preventing from slipping off. All pulleys use maintenance-free bearing, the design can efficiently prevent abrasion between steel rope and pulley shell. It has delicate overall structure and volume as well as nice appearance.

5. Coupling & Shaft

Use safe, reliable transmission performance coupling to connect the various agencies of transmission components, torque transmission at the same time compensate for certain installation errors caused by the angle and radial offset to improve the dynamic characteristics of the transmission. Brake wheel coupling includes brake wheel and braking unit. The transmission shaft adopts 45# steel material, which is strictly calculated by strength (static strength and fatigue strength).Ensure its strength and reliability, and smooth the transmission torque.

6. Buffer and limit switch

Trolley is installed JHQ polyurethane buffers, it has the good performance of absorbing the moving mechanism energy and reducing the impact.

7. Electric box

It is of IP55 protection class, air plug and fast-easy installation; Schneider/ABB/Siemens/CHINT electrical kits, etc. 

Incoming  material 

test

Uncoiling 

and flattening the steel plate