Double Hoist Overhead Crane
Double Hoist Overhead Crane Classification of Overhead Crane Equipment Overhead crane is a kind of bridge type crane whose bridge frame runs on elevated track, also known as crane. The bridge frame of the double hoist overhead crane runs longitudinally along the rails laid on the elevated sides...
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Product Introduction
Description
This Double Hoist Overhead Crane is widely used in indoor and outdoor warehouses, factories, docks, and outdoor storage yards. This product generally consists of a lifting trolley, a bridge operating mechanism, and a bridge metal structure. This product consists of three parts: a lifting mechanism, a trolley running mechanism, and a trolley frame. Each structure is perfectly matched and can effectively complete various lifting operations. The lifting mechanism includes a motor, brake, reducer, drum, and pulley block. This product has diverse driving methods and operating modes, and is widely used in major factories. We have been engaged in this industry for many years, with rich experience and mature technology.
Features
The safety performance of this Double Hoist Overhead Crane is very high. When the lifting load reaches 90% of the rated load, the system will issue an alarm signal; When the lifting load reaches the rated load, the system can automatically cut off the power supply and issue an alarm signal. When the lifting device reaches the limit position, the product can automatically cut off the lifting power supply. Install a stop at the end of the track to prevent the bridge from derailing. The load performance of this product is very good, and it can lift heavy objects. In addition, this product has been used in multiple large factories with guaranteed quality.
Electrical Safety Device
1. Lighting switch box: used to ensure the lighting of the work site and the power supply of the electric bell.
2. Travel limit switch: It is used to limit the operation of the machinery driven by the motor within a certain range, so as to prevent the offside accident of the machinery driven by the motor.
3. Emergency switch: Installed next to the driver's cab, in case of an accident or emergency, the driver can cut off the power supply of the control circuit conveniently and quickly.
4. Door cabin safety switch: Installed at the door and hatch to prevent accidents caused by the driver blindly sending power when someone gets on or off the crane or goes to work on the crane platform.
5. Fuse: used to protect the short circuit of the control circuit.
6. Overcurrent relay: protect the main line and motor from overload and short circuit.
7. The zero contact of the controller: to protect the zero start and prevent the controller handle from being powered on when it is in the working position. Accidents occur when the motor runs on its own.
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Lifting Weight(t) |
5 |
10 |
16/3.2 |
20/5 |
32/5 |
50/10 |
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Span(m) Customized |
10.5 13.5 16.5 19.5 22.5 25.5 28.5 31.5 |
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Max. Lifting Height(m) |
Main |
16 |
16 |
16 |
12 |
16 |
12 |
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Aux |
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|
18 |
14 |
18 |
14 |
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Hoisting Speed(m/min) |
Main |
3.7 |
3.3 |
3.6 |
2.7 |
2.6 |
1.9 |
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Aux |
|
|
3.8 |
3.7 |
3.7 |
3.37 |
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Travelling Speed of Crab(m/min) |
9.3 |
10.3 |
10.3 |
10.3 |
9.8 |
8.9 |
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Travelling Speed of Trolley(m/min) |
12 |
12 |
12.5 |
12.5 |
12.6 |
12.5 |
12.6 |
12.6 |
12.3 |
12.3 |
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Overload Alarm Safety Device
When the double hoist overhead crane is working, it is necessary to change the working conditions frequently according to the actual situation on site for lifting operations, such as changing the lifting angle (amplitude), the length of the boom, etc., and the maximum rated lifting capacity and working conditions that can be lifted under different working conditions parameters The maximum and minimum variable amplitudes are different, so a set of devices is required to comprehensively monitor and judge the above parameters, make instructions on the working status of the crane, such as normal operation, full load, overload, variable amplitude exceeding the upper limit, and variable amplitude exceeding the lower limit, and correspondingly alarm, prompt, control to ensure the normal operation of the hoisting machinery.
The overload alarm is a safety protection device applied to hoisting machinery in response to the above requirements. In the "GBl2602-2009 Safety Technical Specifications for Hoisting Machinery Overload Protection Devices" officially promulgated by the State Bureau of Technical Supervision, there are clear requirements for the equipment and technical performance of crane overload alarms.
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