Question 1

How do I choose the right casters for my equipment?

Accepted Answer

Selecting the right caster involves considering several key factors. (1) Load Capacity: Calculate the load each caster needs to bear (total weight divided by the number of casters, incorporating a safety factor of 1.2-1.5). (2) Operating Environment: Indoor/outdoor? Floor type (epoxy, tile, carpet, rough concrete)? Exposure to oil, water, chemicals, or extreme temperatures? (3) Functional Needs: Do you need fixed, swivel, swivel wheel braking or total braking, Requirements for noise reduction, a

Question 2

What is the difference between nylon, polyurethane(PU), and rubber wheels? How do I choose?

Accepted Answer

Nylon Wheels (PP/PA): High hardness, excellent load capacity, (wear-resistant), and resistant to many chemicals. Can be noisy and may mark floors. Ideal for heavy-duty industrial use on rough surfaces. Polyurethane Wheels (PU): Excellent elasticity, high load capacity, extremely (wear-resistant), super quiet, and very floor-friendly (non-marking). The premium choice for many industrial applications, but often higher cost. Rubber/TPR Wheels: Good shock absorption, quiet operation, and floor-frien

Question 3

What do "Dynamic Load" and "Static Load" mean for casters?

Accepted Answer

Dynamic Load: The maximum weight a caster can safely bear while in motion. Static Load: The maximum weight a caster can support when the equipment is stationary. Static load ratings are always significantly higher than dynamic load ratings. Always base your selection on the dynamic load capacity.

Question 4

Can you provide special casters for high-temperature, chemical-resistant, or anti-static applications?

Accepted Answer

Yes, we offer a range of specialty casters: High-Temp: Features high-temperature grease, heat-resistant wheels (e.g., phenolic), and sometimes metal wheels. Chemical-Resistant: wheels made from specific compounds like Vulkollan or EPDM rubber, and stainless steel or plastic swivel assem- blies. Anti-Static/Conductive: Wheels with carbon additives to dissipate static electricity, crucial for electronics manufacturing and explo- sive environments.

Question 5

What are the different types of brakes?

Accepted Answer

Common brake types include: Total Brake / Dual Brake: Locks both the wheel's rotation and the swivel movement. Wheel Brake: Only locks the wheel, allowing the caster to swivel. Swivel Lock / Directional Lock: Only locks the swivel, allowing the wheel to roll straight. Step-On Brake: Activated by foot pressure.

Question 6

What is your typical production lead time?

Accepted Answer

For standard products, the lead time is typically 3-7 days after order confirmation. For large custom orders, the lead time will be con- firmed based on the project's complexity and quantity.

Question 7

What quality control processes do you have in place?

Accepted Answer

We implement a rigorous QC system that includes: Incoming Inspection: Checking raw materials. In-Process Inspection (IPQC): Monitoring production stages (stamping, welding, heat treatment, assembly). Final Random Inspection (FRI): Testing finished products for load capacity, rotation, brake function, and appearance against agreed standards. Load Testing: We perform destructive and non-destructive load tests on samples from each batch.

Question 8

Can you produce custom casters according to our drawings or samples?

Accepted Answer

Absolutely. We are an OEM/ODM manufacturer with strong R&D and tooling capabilities. We can develop custom solutions based on your specifications, samples, or drawings.

Question 9

What materials are used for the top plate and swivel mechanism?

Accepted Answer

The housing is typically made from: Pressed Steel: Most common, cost-effective, and strong. Often zinc-plated for corrosion resistance. Stainless Steel (e.g., SS304/SS316): For corrosive, humid, or cleanroom environments (food, medical, chemical). Nylon/Plastic: Lightweight and completely corrosion-proof for light-duty applications.

Question 10

What type of bearings do you use in the wheel and swivel?

Accepted Answer

Bearing choice depends on the caster series and application: Wheel Bearings: Roller bearings (for heavy loads), ball bearings (for smooth medium-duty movement), or plain bushings (for light du- ty/low cost). Swivel Bearings: Double ball races or precision ball bearings for smooth rotation and reduced swivel force.

Question 11

What is your Minimum Order Quantity (MOQ)?

Accepted Answer

For standard items, our MOQ can be as low as 100-500 pcs per model/specification. For custom-designed products, the MOQ will be higher to cover tooling costs. We are flexible and can discuss solutions for smaller trial orders.

Question 12

Can you provide samples? Are they free?

Accepted Answer

Yes, we can provide samples for quality verification. Samples are usually provided for a charge, which is refundable if a subsequent order is placed. Freight costs are typically borne by the customer.

Question 13

What are your payment terms?

Accepted Answer

Common terms include: T/T (Wire Transfer): 30-50% deposit, balance before shipment or against copy of B/L. Payment terms for established customers may be negotiable.

Question 14

What certifications do your products have?

Accepted Answer

Our products are certified to meet international standards such as DIN ISO 9001 for quality management. Our casters can be tested and certified to meet specific performance. We can also provide compliance certificates for materials like RoHS and REACH.

Question 15

How do you handle packaging and shipping?

Accepted Answer

We use standard export-grade packaging: individual poly bags, inner cartons, and strong master cartons on pallets. We can ship by sea (FCL/LCL), air, or express courier (DHL, FedEx, etc.). We work with reliable freight forwarders but can also ship based on your instruc- tions.

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