Description
Custom Conductive Polyurethane Wheels for Battery Packs – ESD-Safe PU Wheels from China
Our custom conductive polyurethane wheels are engineered for battery pack manufacturing and handling lines, where static electricity is a real risk to lithium-ion cells and electronic control units. The carbon-loaded conductive compound holds a controlled surface resistivity in the range of 104 to 106 ohms, so static charges drain away safely instead of building up, while the cast polyurethane body keeps the mechanical strength, abrasion resistance, and low-noise running quality that premium PU is known for. With more than 15 years of casting experience, we work as a top OEM/ODM manufacturer and supplier in China, delivering a professional custom solution with adjustable diameter, width, hardness, conductivity level, and bearing type to match your AGV or transfer cart specification. Compared with standard rubber or nylon alternatives that wear out quickly in modern battery production, this ESD-safe design combines high load capacity with a long service life at a competitive price. Whether you are sourcing a wholesale batch for a new assembly line or a custom sample for evaluation, our engineering team will provide expert advice and a practical price suggestion for your market demands, backed by full OEM, ODM, and OBM support.
Why Choose This Conductive Polyurethane Wheel
- Controlled conductivity for ESD safety: The conductive carbon-loaded polyurethane compound holds a stable surface resistivity between 104 and 106 ohms, so static charges dissipate gradually rather than discharging suddenly near battery cells or flammable electrolytes during handling and transfer.
- Full customization to your specification: Each wheel is cast to order, with hardness adjustable from Shore A 70 to Shore A 95, diameter from 50 mm to 300 mm, and conductivity level tuned to your equipment. Because tooling and casting are handled in-house, a customized wheel does not mean a long lead time or a third-party margin added on top.
- Superior wear life compared to rubber: Under dynamic load testing our polyurethane formula resists abrasion up to three times better than standard rubber wheels, which translates into fewer replacements, less downtime, and a lower maintenance budget over the working life of your production line.
- Stable performance across temperatures: The compound keeps consistent mechanical properties from -20°C to +80°C, so the same wheel performs reliably in ambient assembly areas and in temperature-controlled battery storage environments.
- Proven quality management: Every production batch goes through surface resistivity verification, hardness testing, and dimensional inspection before shipment. Our factory operates under ISO 9001:2015 certification, and we welcome third-party inspection for wholesale orders.
Technical Specifications
Standard parameters are listed below. Because every battery pack line has its own tolerance for static and load, we treat these values as a starting point and customize dimensions, hardness, and conductivity from there.
| Custom Conductive Polyurethane Wheel for Battery Packs – Standard Specifications | |
|---|---|
| Parameter | Specification |
| Product Name | Custom Conductive Polyurethane Wheel for Battery Packs |
| Material | Conductive polyurethane elastomer with carbon-based fillers |
| Hardness Range | Shore A 70 – 95 (customizable) |
| Surface Resistivity | 104 – 106 Ω (adjustable to your ESD target) |
| Load Capacity | 50 – 500 kg per wheel (depending on size and hardness) |
| Outer Diameter Range | 50 mm – 300 mm |
| Wheel Width Range | 20 mm – 100 mm |
| Bore / Bearing Options | Plain bore, ball bearing, roller bearing, or custom hub |
| Color | Black as standard; custom colors available for OEM orders |
| Operating Temperature | -20°C to +80°C |
| Quality Certification | ISO 9001:2015; RoHS and REACH reports available on request |
| OEM / ODM Service | Supported, including custom tooling and private labeling |
| Country of Origin | China |
Material Properties of the Conductive Compound
| Property | Test Method | Typical Value |
|---|---|---|
| Tensile Strength | ISO 37 | ≥ 25 MPa |
| Elongation at Break | ISO 37 | ≥ 400% |
| Abrasion Loss | ISO 4649 | ≤ 50 mm³ |
| Tear Strength | ISO 34-1 | ≥ 40 kN/m |
| Compression Set | ISO 815 (70°C, 22h) | ≤ 20% |
| Rebound Resilience | ISO 4662 | 40% – 55% |
| Surface Resistivity | IEC 60093 | 104 – 106 Ω |
The figures above are typical values from our standard conductive compound. Where a battery pack application calls for a specific balance of softness, conductivity, or load-bearing capability, our technical team will adjust the formulation and issue test reports for the exact batch supplied. This matters most for customers in the electric vehicle and energy storage sectors, where ESD control standards are strict and batch-to-batch consistency is part of the audit trail.
Product Detail Images – Conductive Wheel Construction
About Us – OEM/ODM Conductive Polyurethane Wheel Manufacturer in China
About Our Manufacturing Base
Customer Visits
We are a China-based manufacturer and supplier specializing in custom polyurethane wheels, rollers, and cast elastomer components for industrial equipment, and a top professional custom solution provider for buyers who need wheels built to their own drawing. Since 2008 we have delivered OEM and ODM solutions to customers across Europe, North America, and Southeast Asia, with battery manufacturing, material handling, and automation as our core markets. Our engineering team stays with each project from the first drawing through to final delivery, so a conductive wheel meets the technical and regulatory requirements of its destination market. Dealing directly with the factory rather than a trading company keeps cost control transparent and technical answers fast, which is what buyers in the battery and energy storage industry tend to value most.
Factory & Equipment
Our Certifications (ISO 9001:2015, RoHS, REACH)
Our production facility covers 8,000 square meters and houses several polyurethane casting lines, CNC machining centers, and precision grinding equipment. A dedicated conductivity testing station verifies surface resistivity on every conductive batch before and after curing, which is how we keep ESD performance consistent across large wholesale orders and how we can hand you reliable documentation for your quality records. For conductive polyurethane products we can supply RoHS and REACH compliance reports together with batch-specific resistivity data, and if a battery pack project needs additional files for internal or regulatory approval, our team will help prepare them. From this facility we ship wholesale orders worldwide, and our export team handles the documentation for global shipping.
Order, Lead Time & Stock Policy
Lead time: Actual lead time depends on raw material supply, machining schedules, and seasonal demand, so reasonable fluctuations can occur. We will provide the most accurate delivery estimate possible after order confirmation and keep you informed throughout the production process.
Stock status: We generally do not hold finished stock, though a limited number of popular standard sizes may be available. Actual stock levels change dynamically with sales and production. We recommend contacting our customer service team to confirm real-time availability before placing an order.
Bulk & urgent orders: For large-volume orders or urgent requirements, please contact us in advance to discuss capacity and scheduling. We will do our best to accommodate your timeline.
Frequently Asked Questions – Conductive Polyurethane Wheels for Battery Packs
1. What makes conductive polyurethane different from standard polyurethane wheels?
Standard polyurethane is an electrical insulator, which means static charges can accumulate on the wheel surface during movement. Our conductive polyurethane is compounded with carbon-based fillers that create a controlled conductive path, bringing surface resistivity down to the 104 – 106 Ω range. This allows static electricity to dissipate safely instead of discharging suddenly, protecting nearby battery cells and electronic components from ESD damage. The mechanical properties, such as abrasion resistance and load capacity, remain comparable to standard polyurethane, so you do not have to sacrifice durability for conductivity.
2. Can you customize the surface resistivity for my specific battery application?
Yes. Surface resistivity is one of the key parameters we adjust during compounding. Whether your process requires a value closer to 104 Ω for rapid dissipation or closer to 106 Ω for a more controlled discharge rate, our technical team can formulate the compound accordingly and build a custom solution around your drawing. We will provide test data for the exact batch supplied, so you can verify compliance with your internal ESD control plan.
3. What is the minimum order quantity for custom conductive wheels?
MOQ depends on the wheel size and whether custom tooling is required. For sizes we already produce, the MOQ is typically 50 to 100 pieces. For new dimensions or custom hub designs, the MOQ may be higher due to tooling setup. Please share your drawing or specification, and we will provide a clear quotation with MOQ and tooling cost details.
4. How long does production and delivery take?
For standard sizes with existing tooling, production usually takes 15 to 25 working days after order confirmation. Custom sizes or compounds may require 25 to 40 working days. Shipping time depends on your location and chosen method, typically 20 to 35 days by sea or 5 to 10 days by air express. We will confirm a realistic schedule before you place the order and keep you updated during production.
5. Do you offer samples for testing?
Yes. We can provide samples for evaluation, though sample and shipping costs are normally charged. For custom compounds, a sample fee may apply to cover setup and testing. If your project moves to mass production, we can discuss crediting part of the sample cost against the bulk order. This allows you to verify conductivity, hardness, and dimensional fit before committing to a wholesale purchase.
6. Can you provide competitive wholesale pricing for conductive polyurethane wheels?
As a direct factory in China, we quote against your actual quantity, size, and conductivity target rather than a list price, so volume orders for a new battery pack line are usually the most cost-effective. The more clearly you describe your drawing, annual volume, and target resistivity, the tighter our price suggestion will be. Long-term supply agreements can also be discussed once specifications are frozen.
7. What payment methods do you accept?
We commonly accept T/T bank transfer and can discuss other terms for established customers. For sample orders, payment is usually required in advance. For bulk orders, we typically work with a deposit plus balance against copy of shipping documents. If you have specific payment requirements, please let us know and we will find a workable arrangement.
8. How are the wheels packaged for international shipping?
Wheels are packed in sturdy cartons or wooden cases, depending on size and quantity, with protective wrapping to prevent surface damage during transit. We can also customize packaging with your logo or labeling for OEM orders. All packages are suitable for sea, air, and express shipping.
9. Can these wheels be used in cleanroom environments?
Our conductive polyurethane compound is formulated to produce low particle shedding and low outgassing, making it suitable for many cleanroom and controlled environments. If your battery pack production area has specific cleanroom class requirements, please share the details and we will recommend the most appropriate compound and surface finish.
10. What kind of warranty and after-sales support do you offer?
We provide a limited warranty against manufacturing defects, with the exact terms depending on the wheel specification and order volume. If a batch does not meet the agreed hardness, dimensional, or resistivity tolerances, our production and quality teams will investigate the root cause and offer a replacement or corrective solution. Replacement wear parts and technical support remain available through the service life of the product, and we are glad to discuss extended supply agreements for battery pack lines that run continuously.
Looking for a reliable manufacturing partner for your conductive polyurethane wheel project?
Tell us about your battery pack line, target resistivity, and expected volume, and we will come back with a working quotation, a sample plan, and a realistic delivery schedule. We are here to support your project from drawing to delivery.
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