250 lb Lifting Magnet Supplier Screener
250 lb is approximately 113.4 kg. Use this screener to shortlist a supplier by the information and application support you need, then verify the exact magnet against its manufacturer documentation. It does not check live inventory or verify individual suppliers.
Published: October 12, 2026 · Publisher: LiftMagnetics · Source review: October 12, 2026
Supplier Match Screener (250 lb / 113.4 kg)
Shortlist supplier support by application and evidence needs. The result does not qualify equipment or approve a lift.
Application Inputs
Ready to screen
Choose the application details, then match a supplier profile. Changing any input clears the previous result.
Key Conclusions for 250 lb Magnets
1. Confirm the exact model rating
Ask which model is quoted, what its rated working load means, and under which stated test conditions it was established.
2. Check the workpiece envelope
Material, thickness, shape, contact, surface gap, and orientation can affect capacity. Get the exact model’s data; there is no universal thickness or derating percentage.
3. Separate screening from lift approval
A supplier profile does not establish a safe working load or required design factor. Suspended lifts need review against the actual lift plan and applicable requirements.
Supplier evidence to verify before purchase
Ask for model-specific values and documents. The sources below explain why a headline capacity cannot replace the manufacturer’s workpiece limits or a qualified review.
| Ask the supplier for | Why it matters | Evidence to review |
|---|---|---|
| Exact model and rated working load | Confirm the rating belongs to the quoted unit and understand what the manufacturer rates. | Nameplate, data sheet, and stated test basis |
| Capacity limits for your workpiece | Check material, thickness, shape, contact area, surface gap, and orientation against model data. | Capacity or derating chart with units and test conditions |
| Operating and inspection instructions | Use the manufacturer’s model-specific limits and procedures throughout the product life. | Current operating and maintenance manual |
| Applicable standards and test records | Determine which rules and records apply to the device, application, and jurisdiction. | Named standard and edition, supplier records, and qualified review as required |
Source notes (checked 12 October 2026)
- ASME BTH-1 overview describes design criteria for below-the-hook devices and says to use it with ASME B30.20 safety requirements.
- OSHA interpretation on B30.20 explains OSHA’s use of that consensus standard for below-the-hook device inspection provisions in the U.S.; local rules may differ.
- Powertex PLM operating manual is one manufacturer example showing that workpiece thickness, air gaps, material, and temperature limits are model-specific; its values must not be transferred to another magnet.
Supplier Risks & Trade-offs
Compare what each supplier can document and support for your specific lifting conditions; price alone does not establish fit.
Common Pitfalls
| Risk | Impact | Mitigation |
|---|---|---|
| Rated load is not traceable to a model | The quoted capacity may not apply to the unit being purchased. | Request the manufacturer, exact model identifier, marked rated working load, and its test basis. |
| No workpiece limits or derating data | A headline rating may not cover the actual material, thickness, shape, or contact condition. | Get the model-specific chart and check that your workpiece conditions are included. |
| Operating limits are unclear | Temperature, inspection, and use limits vary by model and magnet design. | Use the current operating manual and ask the supplier about any missing limits. |
Risk map
Hold: the exact model, rated working load, or operating instructions cannot be verified.
Check: the supplier provides model specs, but the workpiece conditions or required records are not yet confirmed.
Review: model-specific capacity data and the records needed for your application are available for qualified review.
Have a candidate model? Ask for its exact workpiece limits.
Include the load, material, shape, thickness, and contact condition so the quoted model can be checked against its own documentation.
Scenario Examples
These examples organize the supplier questions; none of them is a capacity calculation or approval to lift.
Hobby / DIY workshop
- Occasional handling
- Floor-supported load
- Known workpiece
Result: Start with suppliers that identify the exact model and rated working load.
Next action: Compare the manual limits with your material and surface condition.
Machine shop loading
- Repeated use
- Mixed plate thicknesses
- Operators rely on published instructions
Result: Ask for model-specific capacity data, operating instructions, and inspection requirements.
Next action: Send the supplier your material grade, shape, thickness, and lift orientation.
Suspended / overhead lift
- Load leaves its support
- People may be exposed
- Site rules apply
Result: A supplier screener cannot approve the lift or set its safety factor.
Next action: Have a qualified person verify the lift plan, exact model, and applicable requirements.
FAQ: 250 lb Lifting Magnet Suppliers
Capacity and workpiece fit
How many kilograms is 250 lb?
250 lb is approximately 113.4 kg. A 100 kg rating is approximately 220.5 lb, so the two ratings are not interchangeable.
Will a magnet marked 250 lb lift every 250 lb workpiece?
No universal answer follows from the headline rating. Check the exact model’s rated working load and limits for material, thickness, shape, contact, surface condition, and lift orientation. Do not use this page as a lift approval.
Does plate thickness or paint affect lifting capacity?
It can. Thickness and any separation at the contact surface affect magnetic performance, but the amount depends on the model. Ask for the supplier’s capacity chart for the actual workpiece conditions.
Can a flat-plate rating be used for pipe or round stock?
Do not assume so. Request capacity data for the exact material shape and contact geometry from the manufacturer.
Supplier evidence and compliance
What should I ask a 250 lb lifting magnet supplier for?
Ask for the exact model identifier, rated working load and basis, material/thickness/air-gap limits, current operating and inspection instructions, and any test or compliance records required for your use and jurisdiction.
How much does a 250 lb lifting magnet cost?
Price and availability depend on the exact model, supplier, destination, and current stock. Request a current quote with the model and application details, then compare price alongside its rated-load basis, workpiece limits, lead time, and shipping.
Does ASME set one safety factor for every 250 lb magnet?
Do not infer a universal ratio from nominal capacity. ASME BTH-1 provides design criteria for devices within its scope and is used with ASME B30.20, which covers safety requirements such as marking, inspection, testing, maintenance, and operation. Confirm the applicable requirements and design basis with the supplier and a qualified person.
Are CE marking and ASME compliance the same thing?
No. They refer to different conformity or standards contexts. Ask the supplier to identify the applicable jurisdiction, exact standard and edition, and the specific records they can provide; have the responsible person confirm what your site requires.
Can this screener approve a suspended or overhead lift?
No. It only helps shortlist supplier support. A qualified person must evaluate the actual lift, equipment, workpiece, instructions, and applicable site and jurisdiction requirements.
Next Step: Request a Quote with Clear Requirements
When contacting a supplier, ensure you provide the context of your application so they can quote the correct model.
Minimum inquiry checklist:
- Target rated working load: 250 lb (approximately 113.4 kg).
- Exact magnet model and lifting orientation, if known.
- Workpiece material grade, shape, dimensions, and thickness.
- Contact surface condition, coating, and any gap.
- Site location and applicable project or jurisdiction requirements.
- Request model-specific capacity data, manual, and required test records.