Crane-bumper
Crane bumper is a safety device that uses the microporous bubble structure of polyurethane material to absorb energy and buffer. When it is impacted, it is equivalent to a spring with multiple airbags to effectively absorb and disperse the impact force, thereby protecting mechanical equipment from d
- Working Principle
- Absorb energy by deformation when impacted, converting it into elastic energy,.
- Crane Bumper Type
- Stud Type(JHQ-A), Pressure Plate Type(JHQ-B) and Flange Type(JHQ-C).
- Material
- Polyurethane
Quotation in 24 hours · CAD drawing in 48 hours · FEM / DIN / ISO design
Product Overview
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Technical Features
Feature detail for this item is published in the specification table below and in the downloadable catalog.
Where It Is Used
- Widely used in various scenarios that require anti-collision and deceleration, such as large industrial machinery, elevators, mining cars, overhead crane, gantry crane and kinds of industrial crane, etc.
- Crane Bumper is suitable for metallurgy, mining, railways, ports, ships, automobiles, weighing instruments, large machinery, equipment and other fields. It can also be used for the front and rear corners of various cars and vans to prevent collision.
Specifications
Values below are the published standard configuration. Anything outside this range is a customisation question, not a catalogue lookup.
| Working Principle | Absorb energy by deformation when impacted, converting it into elastic energy,. |
|---|---|
| Crane Bumper Type | Stud Type(JHQ-A), Pressure Plate Type(JHQ-B) and Flange Type(JHQ-C). |
| Material | Polyurethane |
| Item/Unit | Performance Index |
|---|---|
| Density g/cm³ | 0.550.65 |
| Hardness Shaw A | 6080 |
| Recovery Rate % | >95 Tested after 75% Compression and Unloading for 5 Minutes |
| Compressive Strength MPa | 1.22.5 Tested, When Compressed to 50% of the nNominal Height |
| Working Temperature ℃ | 30+60 |
Quality Control
Raw steel arrives with a Material Test Certificate and is spot inspected. Welders hold Class I international qualification. Girders are shot blasted to Sa2.5 before paint, and paint thickness is checked.
Customisation
Capacity, span, lifting height, duty group, power supply, control mode and service environment are all specified per order. Special products customisation is a standard service.
Documentation and Support
Equipment and main parts qualification certificates, electrical drawing diagram, installation operation and maintenance manual, and commissioning instructions ship with the equipment. Online support runs 24/7.
Use Guide
- Confirm the duty group. Count average lifts per hour and average load, not peak tonnage. This sets the FEM classification and drives the whole design.
- Check the building. Wheel load, headroom and hook approach decide whether the unit fits. Ask for the CAD drawing before ordering.
- Specify the environment. Temperature, dust, humidity and any hazardous area classification change the motor, brake and enclosure rating.
- Plan the power supply. Long travel needs a conductor rail or festoon system, which is quoted separately and must match the runway length.
- Book commissioning. Installation supervision or online commissioning support, plus operator training, before the unit goes into production.
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View specificationFrequently Asked Questions
What information do you need to quote a crane-bumper?
Capacity, span rail centre to rail centre, lifting height, duty or working condition, power supply, travel distance and the service area conditions. A workshop drawing speeds it up considerably.
Is the crane-bumper available as a spare part or kit item?
Yes. Sinomac provides a special products customisation service, and free production drawings for regional partners and clients buying crane kits.
How long does a quotation take?
A quotation is issued within 24 hours and a CAD drawing within 48 hours, both free of charge.
What testing is done before shipment?
Every hoist is pre-commissioned before packing and the crane is pre-assembled for a factory acceptance test. A third party inspection can be arranged at your request.
Are your cranes built to FEM and DIN standards?
Yes. Sinomac designs to FEM, DIN and ISO. Duty group is set from your real lifting cycle, so the classification on the nameplate matches how the crane is actually used.
Can you supply a crane kit instead of a complete crane?
Yes. Sinomac supplies hoist, end carriages, drives, control system and anti-sway as a kit, and provides free production drawings of the girder for regional partners and clients buying kits, which lowers shipping cost.
Request a Quotation for the Crane-bumper
Send capacity, span, lifting height and duty. A quotation follows within 24 hours.