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Crane production FAQ: Overhead crane, gantry crane, jib crane, hoist crane production

30 Aug, 2017

Crane production questions and answers on Types of cranes. As a crane manufacturer, Dongqi Crane production is under the supervision of quality crane to ensure the quality of your overhead crane, gantry crane, jib crane, hoist crane and workstation crane, etc. Check the crane production questions to get your pleasant answers now.

Crane production

Whether you can offer customized overhead crane, gantry crane, jib crane, or hoist crane?

Yep, of course, we are a crane manufacturer, and we have our own crane engineer group. They can work out customized crane design according to your requirement. The most important thing is that you tell us all the needed information and parameters for customized your crane requirements.

Which crane is the most suitable, among the overhead crane, gantry crane, jib crane or hoist crane?

According to your practical crane usage and workshop’s application situation, Please check the following questions or contact with Dongqi crane salesman they will recommend the suitable one crane for you.


Overhead crane : No occupation of ground area; widely used indoor, also can be used outdoor; Suitable if the workspace is limited or the working ground is occupied with many equipment or goods; Need to install stand column, support bracket, runway beam and rails.
Gantry crane: Occupy ground area; More suitable if there is no stand column; widely used outdoor, also can be used indoor. Need install foundation and pave rails on ground.
Jib crane: Can be used out door and indoor;Need install foundation on ground; Occupy small ground area covering little working area; Have up down, left right work direction and 360 degree rotation.

What’s information or parameters is required to get precise crane quotation & best design for the application ?

Overhead Crane Gantry Crane Jib Crane
  1. Span:
  2. Lift Height:
  3. Lift Capacity:
  4. Lift What:
  5. Indoor/outdoor?
  6. Lift Speed: Single/Double/Variable?
  7. Travel Speed: Single/Double/Variable?
  8. Use Environment: Any explosive,combustible air? temperature?
  9. Workshop practical situation? Drawing.
  10. Use frequently? How many hours/day? How many times/hour?
  1. Lift Height:
  2. Lift Capacity:
  3. Span: (Any Cantilever? )
  4. Lift What:
  5. Indoor/outdoor?
  6. Lift Speed: Single/Double/Variable?
  7. Travel Speed: Single/Double/Variable?
  8. Use Environment: Any explosive,combustible air? temperature?
  9. Workshop practical situation? Drawing.
  10. Use frequently? How many hours/day? How many times/hour?
  1. Arm Length:
  2. Lift Height:
  3. Lift Capacity:
  4. Rotation Degree:
  5. Lift What?
  6. Indoor/outdoor?
  7. Lift Speed: Single/Double/Variable?
  8. Travel Speed: Single/Double/Variable?
  9. Use Environment: Any explosive,combustible air? temperature?
  10. Use frequently? How many hours/day? How many times/hour?

If want to use overhead crane, but there is no stand column and support bracket, which crane design shall be selected?

The most economic crane design is gantry crane, but if there are many equipments and goods on ground, we suggest to use overhead crane to save the working space.

If the gantry crane is wanted, but the factory has finished estabishment, could the gantry crane be installed without breaking the ground?

Yep, at once the ground’s concrete width is more than 20cm, then there is no need to dig the ground. Just need pave belt steel plate, and fix it on the concrete floor with bolts. Then weld the rails is okay.

When work temperature under 20℃, what is the crane different? When work temperature is too high, what is the difference.

Under 20℃, the crane’s steel plate will reply by Q345. When temperature is too high, will use H grade motor, and increase the cable’s insulation grade, also will increase the crane’s ventilation.

As for overhead crane, if the height from runway beam’s surface to workshop’s lowest point is too low, what special design can make?

Different connection of main beam and end beam can reduce the height;

Different crane design can shorten crane’s self height.

What’s Dongqi Crane’s painting standard.

For eletric hoists, there is automatic painting line. For large cranes, two times base paint, and two times final paint, use epoxy polyamide paint.

Whether you can offer the matched crane and hoist spare parts?

Yep, as a hoist and crane manufacturer, we offer all the related hoist and crane spare parts, such as motor, hoists, drums, wheels, grabs, hooks, rails, travel beams, enclosed bus bar etc.

How can you ensure the good quality with short production?

Every department will work together to serve you, please see the following cooperation picture.Please check detailed information of Dongqi crane production process.

What kind of operate method you can offer?

By pendent button/By remote control/By cabin.

Can you offer special hanger for different usage?

Yep, we can offer clamshell grab, orange grab, electromagnet, C hooks, belt or other hangers.

What is the safety device you can offer?

Safety Measures Foundation
Loss of pressure fault phase protection
  1. When the voltage is too low, the electricity will disconnect
  2. When the phase is changes, the electricity will disconnect
Over Voltage, over current protection
  1. When the voltage is too big, the electricity will disconnect
  2. When the current is too big, the electricity will disconnect
Overload Limit Switch
  1. When the lift capacity is more than the max ratedlift capacity, the electricity will disconnect, crane will stop work
Weight limit
  1. Supervise the decrease of hook. There is a limitheight. The hook cannot fall any more if reach this limit
Fire limit
  1. Supervise the up and down limit position of Hook.Avoid the over increase and over decrease, protect hoist
Crane Travel Limit Switch
  1. Supervise the travel of crane, and stop crane travelmore than rated travel distance.

Our cranes are mainly consisted of metal structure( which is assembled with main beams, side beams, platform, ladder, railings, and trolley frame, etc), machining parts, purchased parts ( such as, bearings, fasteners, standard parts, etc.),cooperation parts ( such as, the hook) and electrical spare parts, etc.

Process crane production

Process crane cutting and welding

Process crane production: cutting and welding

Process crane main beam welding

Process crane production: welding main beam

Prcess crane manufactuering:semi finished main beam

Process crane manufactuering:semi finished main beam

Process crane production: main beam pating

Process crane production: main beam painting;

Dongqi overhead crane production

Process crane production: overhead crane fabrication

Process crane production: 20 ton overhead crane fabrication

Dongqi gantry crane production

Process crane production: 50 ton gantry crane fabrication

Process crane production: 50 ton gantry crane fabrication

Dongqi jib crane production
Process crane : jib crane

Process crane : jib crane

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