Brief Introducion:
QZ model double girder 5-20 ton grab bridge crane is widely used in loading goods in port, factory, workshop and power plant.
The work classification is heavy. The working duty is A6.The lifting capacity includes the weight of the grab.
It is widely used in power plants, ore, limestone, coke, coal, sand, slag, loose clay and other granular material warehouse.
The special requirement should be mentioned when grab underwater material or some special material. When using outside,
there is water proof equipment along with the grab.
This type grab overhead crane can be grouped by single girder grab overhead crane and double girder grab overhead crane.
Double Girder Grab Overhead Crane
Single Girder Grab Overhead Crane
| Main Parameters List(REFERENCE) | ||||||
| Crane Traveling Mechanism | Traveling Speed(m/min) | 20 | 30 | 45 | 60 | |
| Ratio | 58.95 | 39.42 | 26.51 | 19.44 | ||
| Motor | Type | Cone Squirrel-cage | Cone Squirrel-cage | |||
| Power(kw) | 0.8*2, 1.5*2, 2.2*2 | 1.5*2, 2.1*2 | ||||
| Rotary Speed(r/min) | 1380 | 1350 | ||||
| Hoist Lifting Mechanism and Traveling Mechanism | Electric Hoist Model | MD1 | CD1 | |||
| Lifting Speed(m/min) | 8/0.8, 7/0.7, 3.5/0.35 | 8, 7, 3.5 | ||||
| Span(m) | 7.5-22.5 or assigned | |||||
| Lifting Capacity(t) | 0.5-32 | |||||
| Lifting Height(m) | 6, 9, 12, 18, 24, 30 | |||||
| Traveling Speed(m/min) | 20, 30 | |||||
| Motor | Cone Squirrel-cage | |||||
| Work Duty | Intermediate Jc=25% | |||||
| Power Supply | 380V 50HZ 3P | |||||
| Wheel Diameter | Φ270, Φ400 | |||||
| Trail Width | 37-70 | |||||
Grab Types: We can offer the grab type according to your special requirements.
Safety Devices for overhead bridge crane:
To guarantee the normal operation of crane and avoid the personal casualty and mechanical damage, the safety device we
provide are not only the electric protective devices or alarm bell but also other
equipments as following:
1.Overload Limit Switch
2. Rubber Buffers
3.Electric Protective Devices
4.Emergency Stop System
5.Voltage Lower Protection Function
6. Current Overload Protection System
7. Rail Anchoring
8.Lifting Height Limit Device
FAQ:
1.Can the cranes be customized?
Yes,every customer's working condition is different, all of our products can be customized depend on customers' requirements.
Please give us the information as clear as you can, so we can give our best design to suit for your demands.
2.How many operation methods for my selections?
We provide pendent controller with push button control type, remote control type or cabin control type.Please tell us what kind
of operation way you need.
4.I have low headroom in my workshop, is it possible to install a crane in it?
We have special products for low headroom workshop, our engineer can give the best design according to your dimensions.
5.Do you supply lift tools?
Yes, we can provide any kind of lifting tools such as hook, electromagnetic, grab bucket etc...
6.In order to offer the most suitable design solution for you, it will be great helpful if you can offer us the following information to us:
1. Lifting capacity.
2. Span length.(rail center to rail center)
3. Lifting height.(hook center to ground)
4. Have you installed the rails? Do you need us to supply the rails? How long is it?
5. Power supply: Voltage.
6. Working condition: what kind of material to lift? temperature?
7. It would be much better if it is possible for you to offer the drawing photo of your workshop.
Customized Design &Production Accepted According to Your Using
Mingdao Cranes Introduction:
We are a member of China Lifting Industry Association, safety-recognized enterprise, national crane machinery designated production organizations, we have obtained mechanical engineering "design certificate", and the national issued crane "manufacturing permit",installation and maintenance, renovation and maintenance of the "License" and so on.
In the past 10 years, we are aiming at China domestic market and become a leading manufacturer in China. Also, with the help of China trading companies we have exported our products to many countries such as Vietnam, Philippines, Sri Lanka, Bangladesh, France, Dubai, Kazakhstan, Russia, Tanzania ,Peru , Newzealand,etc countries . We got 99% good feedback from the overseas customers.
Now we are not only aiming at China domestic market growth ,but also to expand the international market with our quality and price advantages. Send us an inquiry now.
The company has six functional departments, including R&D department, sales department, materials supply department, production department, QC department,after-sales department. There are 16 workshops including electrical, riveting, forging, assembly, heat treatment, machining and maintenance.
Our company produces various lifting equipment and loading and unloading. The equipment is 30,000 tons and the sales income is 360 million yuan. 18 offices and 76 sales and service agencies in power plants, industrial and mining enterprises, and port terminals.
Integrity, quality, customer satisfaction is the pursuit of Mingdao heavy workers!
