Description
Custom ESD Safe Polyurethane Wheels for Circuit Assembly – Anti-Static Wheels Made to Order by a China Factory
Why choose this ESD safe polyurethane wheel?
Most anti-static wheels on the market are either conductive rubber wheels that wear out quickly, or standard PU wheels that offer no static control at all. We built this range for buyers who need both properties at the same time: a conductive polyurethane tread that keeps surface resistivity inside a controlled band, and a cast process that delivers a dense, non-marking surface which will not shed black dust onto sensitive boards or leave scuff marks on light-coloured cleanroom flooring. The result is a wheel that protects your ESD floor and your PCBs at the same time, without the short service life that conductive rubber usually brings.
For a custom solution, our engineers review your cart weight, rolling speed, floor type and required ESD class before recommending a hardness and hub combination. A softer tread rolls more quietly and protects delicate floors, while a harder tread carries more load per wheel and lasts longer on rough concrete. We are glad to share expert advice on that trade-off, and to send price suggestions for both standard and fully customized versions, so you can compare options for your market before committing to a volume order. Custom ESD safe polyurethane wheels for circuit assembly are available for sale at competitive wholesale prices, with OEM and ODM support from our experienced China factory team.
Typical applications: PCB transfer carts, SMT feeder trolleys, cleanroom transport equipment, electronics assembly stations, semiconductor handling systems, ESD-sensitive warehouse trolleys, and light-load cleanroom conveyors.
Technical Specifications – ESD Safe Polyurethane Wheel
These ESD safe polyurethane wheels are designed for continuous use on circuit assembly carts, cleanroom trolleys and ESD-sensitive transport equipment. As a China OEM/ODM manufacturer, we support customized sizes, hardness, surface resistivity and core materials to match your existing axles and ESD class.
| Custom ESD Safe Polyurethane Wheel – Conductive Cast PU, Shore A 70°–95°, Surface Resistivity 10⁶–10⁹ Ω | |
|---|---|
| Product name | Custom ESD safe polyurethane wheel for circuit assembly |
| Wheel diameter | 50 mm to 250 mm, custom sizes accepted |
| Tread material | Conductive cast polyurethane, Shore A 70° to 95° |
| Core material | Aluminium alloy, carbon steel or stainless steel, press-fitted or cast-in |
| Surface resistivity | 10⁶ to 10⁹ Ω, tuned to your required ESD range |
| Load capacity | 50 kg to 1,200 kg per wheel, depending on size and hardness |
| Bearing options | Plain bore, precision ball bearing, or custom hub |
| Runout | Within 0.05 mm on request for high-precision trolleys |
| Colour | Black or grey, custom batch colour available |
| Certification | ISO9001 factory, RoHS-compliant compounds |
| Minimum order | 50 pcs for standard sizes, flexible for OEM projects |
| Lead time | Usually 15 to 25 days after sample approval |
✔ Suitable for PCB transfer carts, cleanroom trolleys and ESD-sensitive transport equipment. ✔ Conductive cast polyurethane compound for stable static dissipation. ✔ Bulk orders welcome – contact us for wholesale pricing and sample support.
Details Images – Construction & Application
Material Properties – Conductive Polyurethane Compound
Values below are typical figures from our standard conductive compound. When your application calls for a different balance of hardness, elasticity or conductivity, our technical team can adjust the formulation and confirm the expected values before production begins.
| Property | Test Method | Typical Value |
|---|---|---|
| Surface resistivity | ASTM D257 | 10⁶ to 10⁹ Ω |
| Hardness | ASTM D2240 | Shore A 70 to 95 |
| Tensile strength | ASTM D412 | 35 MPa and above |
| Tear resistance | ASTM D624 | 60 kN/m and above |
| Abrasion loss | DIN 53516 | 45 mm³ or less |
| Compression set | ASTM D395 | 25% or less after 70 h at 23°C |
| Operating temperature | — | -20°C to +80°C |
The cast conductive polyurethane compound combines stable static dissipation with the abrasion and load-carrying performance of cast PU, which directly translates into longer service life and reduced replacement frequency for your circuit assembly carts. Custom hardness from Shore 70A to 95A and resistivity tuned to your ESD class are available from our factory.
About Us – China OEM/ODM Factory for ESD Safe Polyurethane Wheels
Customers Visiting
We are a China-based manufacturer and OEM/ODM supplier of custom polyurethane wheels, rollers and cast parts, serving electronics assembly, material handling and automation customers worldwide since 2010. Our factory covers casting, CNC machining, bonding and inspection under one roof, which keeps lead times short and quality traceable. As a professional OEM and ODM partner, we regularly produce private-label ESD safe polyurethane wheels for distributors and equipment builders across Europe, North America and Southeast Asia, and we support wholesale buyers with stable pricing and consistent batch quality. Our engineers review every custom enquiry individually — send us your drawing, load requirement or a sample wheel and we will come back with a practical suggestion on material, hardness and construction rather than a generic catalogue answer.
Factory & Equipment
Our Factory Workshop with Professional Equipment for ESD Safe PU Wheel Manufacturing
Our Production Lines and Quality Control
Our production lines include polyurethane casting equipment, CNC turning and milling centres, dynamic balancing testers and hardness and resistivity testing instruments. Inspectors check dimensions, runout, hardness and surface resistivity at incoming, in-process and final stages, and inspection records are kept for every batch so that repeat orders can be matched to the original specification. ISO9001 procedures govern the whole flow, and RoHS documentation is available for all compounds we supply. We welcome customers to visit our plant in China to see casting, machining and testing in person; photos from recent customer visits and material test reports for the specific compound used in your order are available on request.
Our Certifications (ISO9001, RoHS, Testing Reports)
Production & Inventory Policy
Lead time: Actual lead time is affected by raw material supply, machining capacity and seasonal production peaks, so it can vary within a reasonable range. Once your order is confirmed we will give you the most accurate delivery estimate we can and keep you informed of any change.
Stock status: We generally do not hold stock, though a number of fast-moving standard sizes are kept on the shelf. Real stock quantities change continually with sales and production, so please contact us to confirm live availability before ordering.
Bulk & urgent orders: For large volumes or tight deadlines, please talk to us early about capacity and scheduling. We will do our best to fit your timeline and will tell you honestly what is achievable.
Frequently Asked Questions – ESD Safe Polyurethane Wheels
1. Can you customize ESD safe polyurethane wheels to fit our existing cart axles?
Yes. Send us the bore diameter, hub width and wheel diameter, or simply a drawing or sample. We machine the core to match your axle and can add bearings, keyways or mounting plates as needed. Custom tooling is usually not required for common bore sizes, which keeps both cost and lead time reasonable.
2. How do you keep surface resistivity consistent between batches?
The conductive additive is weighed by batch rather than added by eye, and every production lot is sampled and measured for surface resistivity and hardness before packing. Results are recorded against the batch number, so when you place a repeat order we can match the original specification instead of guessing.
3. What is your MOQ, and how does wholesale pricing work?
For standard sizes the minimum order is around 50 pieces. For customized ESD wheels with special hubs or compounds we can be more flexible on quantity, especially for a first trial order. Wholesale price steps depend mainly on wheel size, compound and hub material, so tell us the annual volume you expect and we will quote accordingly.
4. Will these wheels mark or shed dust on our assembly floor?
The cast polyurethane tread is non-marking and does not crumble the way some conductive rubber compounds do, so it produces very little black dust around circuit assembly stations. If your floor is light coloured or your cleanroom standard is strict, we can supply a light grey tread and a sample for you to test on site first.
5. What is the usual delivery time, and can you handle urgent orders?
Standard production runs typically take 15 to 25 days after the sample is approved, plus shipping time. Availability of raw compound and current machine loading can shift that figure, so we always confirm a realistic date when we quote. If your schedule is tight, tell us early and we will look at how to fit your order into the production plan.
6. How are the wheels packed for export shipping?
Wheels are wrapped individually, then packed in strong cartons or plywood cases with protective separators so that tread surfaces and bearings arrive undamaged. We can print your own label or shipping mark on the outer carton for OEM orders, and we will confirm packing details and total weight before dispatch.
7. Can you provide samples before mass production?
Yes. For standard sizes we can send sample wheels directly from current production. For customized ESD wheels we normally make a sample to your drawing first so you can verify conductivity, hardness and rolling performance on your own carts before we start the full run.
8. What payment methods and warranty terms do you offer?
We commonly work with T/T and can discuss other terms for repeat customers. All wheels are covered against manufacturing defects, and if a batch does not meet the agreed specification we will replace the affected pieces. Details are confirmed in the order contract so both sides have a clear reference.
Need a reliable manufacturing partner for your ESD safe polyurethane wheel project?
Get in touch for quick quotes, custom samples and volume discounts. Tell us your wheel size, load per wheel and required ESD range, and our team will come back with a practical recommendation and a clear price. We are here to support your project from design through to delivery.
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