Description
Custom Chemical Resistant Polyurethane Wheels for Battery Carts – OEM/ODM Manufacturer in China
These custom chemical resistant polyurethane wheels for battery carts are a professional custom solution for plants where acid mist, alkaline washdown water and hydraulic oil destroy ordinary rubber or nylon wheels within a few months. As a top China factory and OEM/ODM/OBM manufacturer, we cast every wheel from a hydrolysis-resistant polyurethane formulation bonded to a machined cast iron, carbon steel or aluminium core, then tune the tread hardness between Shore A 85 and 95 to suit your load per wheel and floor condition. Because the core is keyed and the bore is machined to a controlled tolerance, the wheel runs true on the axle even under a full battery load, keeping steering effort low and cutting the vibration that reaches the battery box and terminals. Users in battery rooms, electroplating shops and chemical warehouses report longer service intervals, cleaner floors and fewer unplanned line stops. Each production batch is checked for hardness, concentricity and tread-to-core bond strength before packing, and every order ships from our ISO 9001 factory in China with full customization, wholesale pricing, expert technical advice and a reliable price suggestion for the global market. Trial sets are available for sale at a competitive price, so you can validate them on your own carts before committing to a wholesale container.
- Hydrolysis-resistant polyurethane tread that keeps its hardness in humid and chemically aggressive environments
- Machined cast iron, steel or aluminium core for high load capacity without core slippage
- Non-marking tread option for epoxy and coated factory floors
- Custom diameters, tread widths, bore sizes and bearings produced to your drawing
- Typical working range from -30 °C to +80 °C for indoor and semi-outdoor battery cart duty
Why Choose These Custom Polyurethane Wheels
Standard rubber wheels react with battery acid mist and alkaline cleaning agents, which leads to swelling, cracking and black scuff marks that are expensive to clean up. Our polyurethane tread is formulated to resist that chemical attack, so the wheel keeps its shape, hardness and rolling diameter over a much longer service life. A press-fitted, bonded and keyed core carries the load without spinning loose inside the tread, which means less downtime for wheel replacement, more predictable steering on heavy transfer carts, and lower maintenance cost per operating hour.
The advantage is measurable rather than claimed. Polyurethane offers higher tear strength and lower compression set than standard rubber compounds, so a smaller wheel can carry the same load with less deformation. For battery carts that travel thousands of cycles per year, that translates into fewer replacements, less vibration transferred to the battery pack, and smoother starts and stops on ramps and dock plates. We support these statements with batch hardness and concentricity checks, bond strength testing and, where required, third-party reports from accredited laboratories, which is what a professional custom manufacturer in China should be able to show before you commit to a wholesale order.
Technical Specifications
The table below shows our standard range. As a professional custom manufacturer and supplier in China, we treat every line as a starting point and adjust dimensions, hardness and core material to your application before quotation, so you get a custom solution that truly matches your battery cart rather than a compromise.
| Parameter | Specification |
|---|---|
| Product name | Custom Chemical Resistant Polyurethane Wheels for Battery Carts |
| Wheel diameter | 100 mm, 125 mm, 150 mm, 200 mm and custom sizes |
| Tread width | 40 mm to 75 mm, or matched to your existing wheel |
| Tread material | Chemical resistant polyurethane, non-marking grade available |
| Tread hardness | Shore A 85 to 95, tolerance plus or minus 3, selected by load and floor condition |
| Core material | Cast iron, carbon steel or aluminium, precision machined and keyed |
| Load capacity | Approximately 400 kg to 1,200 kg per wheel, confirmed against your duty cycle |
| Bore and fitting | 20 mm, 25 mm, 30 mm or custom bore, with keyway on request |
| Bearing options | Precision ball bearing, tapered roller bearing or plain bore |
| Working temperature | -30 °C to +80 °C continuous, up to +90 °C short term |
| Chemical resistance | Diluted acids, alkalis, coolants, hydraulic oil, deionised water and battery acid mist |
| Minimum order quantity | 50 pieces per size, trial orders negotiable for first cooperation |
| Production lead time | Normally 7 to 25 working days after drawing confirmation and deposit |
| Packing | Carton plus pallet, or export packing according to your requirement |
| Customisation | OEM, ODM and OBM available, including logo, packing and private label |
Details Images – Construction & Application
Material Properties and Test Data
The values below are typical ranges for our standard chemical resistant polyurethane formulation. Final figures are confirmed against the approved sample and drawing before mass production, so you always know what will be delivered and can compare it against any competing quotation before you buy.
| Property and test method | Typical value |
|---|---|
| Hardness, ASTM D2240 | Shore A 92 plus or minus 3, other hardness levels on request |
| Tensile strength, ASTM D412 | 35 to 45 MPa |
| Tear strength, ASTM D624 | 80 to 110 kN/m |
| Abrasion loss, DIN 53516 | 30 to 55 mm³, lower loss available with high-wear formulation |
| Compression set, ASTM D395 | Below 15 percent after 22 hours at 70 °C |
| Rebound resilience, ASTM D2632 | 40 to 50 percent |
| Chemical soak, 96 hours at 20 °C | Weight change under 1.5 percent in 10 percent sulphuric acid, under 1.0 percent in 10 percent sodium hydroxide, under 0.8 percent in hydraulic oil |
| Bond strength, tread to core | Verified by batch pull test before shipment |
Elastomer Selection Guide – Why Polyurethane Suits Battery Cart Duty
A battery room rarely exposes a wheel to one single chemical. Acid mist, alkaline washdown agents, hydraulic oil and humidity usually arrive together, and mechanical wear continues at the same time. The comparison below rates the common elastomers we mould in house on a five-point scale, where five is the best result. It is the same reference our engineers use when recommending a compound for a new cart design, and it explains why polyurethane remains our standard choice for heavy battery cart wheels.
| Compound | Hardness (Shore A) | Abrasion | Tear | Load |
|---|---|---|---|---|
| Silicone | 40-90 | 1 | 1 | 1 |
| Nitrile/PVC | 20-95 | 4 | 3 | 3 |
| EPDM | 20-95 | 4 | 3 | 3 |
| Nitrile Rubber | 20-95 | 3 | 3 | 3 |
| Neoprene | 5-95 | 3 | 4 | 4 |
| Hypalon | 30-95 | 4 | 4 | 4 |
| Hydrogenated Nitrile | 50-98 | 5 | 5 | 5 |
| Natural Rubber | 25-98 | 5 | 5 | 5 |
| Polyurethane | 20-98 | 5 | 5 | 5 |
| Carboxylated Nitrile | 45-95 | 5 | 5 | 5 |
Ratings: 1 is low, 5 is high. Polyurethane scores 5 for abrasion, tear and load bearing, which is why it is our standard recommendation for heavy battery carts that must survive both chemical exposure and continuous rolling contact. It is not the cheapest compound per kilogram, but the longer replacement interval usually makes it the lowest-cost option per operating hour. Hardness from Shore A 20 to 98 is produced in house, so we can fine-tune grip, rolling resistance and load capacity to your specific floor and duty cycle.
Product Details and Application Notes
Every custom chemical resistant polyurethane wheel for battery carts is produced as a single integrated unit: the tread is cast directly onto a sandblasted and primed core, then finish machined on the outside diameter and bore to keep runout low. Tread profiles can be flat, crowned or chamfered, and the sidewall can be grooved for grip or left smooth for easy cleaning in washdown areas. Bearings are pressed in a controlled environment and sealed where dust or splash is expected.
These wheels are most often specified for battery room transfer carts, forklift battery handling trolleys, AGV battery exchange stations, electroplating line carts and chemical storage area trolleys. In these applications the common pain points are wheel swelling, floor marking, high replacement frequency and unstable steering under load. Matching tread hardness to the actual load per wheel is the single most effective way to solve all four, and our engineers will give you expert advice and a price suggestion based on your cart weight, speed and floor type, whether you order a trial batch or a full wholesale container.
Customisation and Related Product Lines
As a professional custom solution provider and supplier, we accept drawings, samples and even worn-out wheels for reverse engineering. We can adjust diameter, width, hardness, colour, bore, keyway, bearing type, hub length and packing. OEM and ODM projects are welcome, and private label production is available for wholesale distributors and equipment builders who need their own brand on the wheel.
Alongside this wheel range, our workshop also produces the following custom lines on the same production floor:
Custom Non Marking Silicone Coated Wheels Smooth Conveyor Roller
About Us
Customers Visiting
We are a China based manufacturer and supplier of industrial polyurethane and rubber wheels, rollers and casters, serving battery equipment builders, material handling integrators and industrial distributors since 2010. Our team combines casting, machining, assembly and quality control under one roof, which means fewer handovers, shorter lead times and more consistent quality from the first sample to the tenth repeat order. Most common materials and processes are available in house, but for unusual specifications we will always confirm feasibility with our technical team before accepting an order.
We work with customers in Europe, North America, the Middle East, Southeast Asia and Australia. Whether you need a single custom size for a prototype or a container load for the wholesale market, we will quote honestly, communicate clearly and deliver what we agreed.
Factory & Equipment
Our production lines include polyurethane casting equipment, vulcanising presses, CNC lathes, CNC milling machines, core sandblasting and priming stations, bearing pressing stations and a dynamic balancing bench. Inspection equipment covers durometer testers, tensile and tear test machines, DIN abrasion tester, compression set fixtures, salt spray chamber, coordinate measuring instruments and bore gauges. This combination lets us control the two variables that matter most on industrial wheels: tread hardness consistency and bore concentricity, which is exactly what keeps a heavy battery cart steering predictably after thousands of cycles.
Quality Control and Certifications (ISO9001, RoHS, REACH, Test Reports)
Quality management follows ISO 9001 procedures, and our formulations are RoHS and REACH compliant. Incoming raw material batches are checked before use, in-process wheels are measured for diameter, width and runout, and finished goods are sampled for hardness and bond strength. Certificates, material safety data sheets and third-party test reports are available on request for your own audits or customer submissions. We know that overseas machine downtime is expensive, so we do not compromise on material selection or inspection discipline.
Customer Visits and Global Cooperation
Buyers from Europe, North America, Japan and Southeast Asia visit our plant every year to review production, audit the workshop and discuss new projects. We welcome factory visits, third-party inspection and pre-shipment inspection, and we are happy to arrange video factory tours when travel is not practical. Long-term cooperation matters more to us than a single order, so we keep our advice practical, our pricing transparent and our promises realistic.
Production and Inventory Policy
Lead time: Actual lead time is affected by raw material supply, machine scheduling and peak-season workload, so it can vary within a reasonable range. Once your order is confirmed we will provide the most accurate delivery estimate we can and keep you informed throughout production.
Stock status: We normally produce to order, although a limited number of fast-moving standard sizes are kept in stock. Stock quantities change daily with sales and production, so please contact us to confirm real-time availability before placing your order.
Bulk and urgent orders: For large-volume or urgent requirements, please talk to us early about capacity and scheduling. We will do our best to work around your timeline.
Frequently Asked Questions
Are these wheels really resistant to battery acid mist and alkaline cleaning agents?
The tread uses a hydrolysis-resistant polyurethane formulation rather than standard rubber. In a 96-hour soak test at 20 °C, weight change stays under 1.5 percent in 10 percent sulphuric acid and under 1.0 percent in 10 percent sodium hydroxide, and the tread does not swell or crumble the way rubber compounds typically do. If your battery room uses a specific cleaning chemical, send us the name or the data sheet and we will confirm compatibility before you order.
What is the minimum order quantity, and how is the wholesale price calculated?
Our standard minimum order quantity is 50 pieces per size, and trial orders can be negotiated for a first cooperation. Wholesale pricing depends on wheel diameter, core material, bearing type, hardness grade and quantity, so please share your specification and annual volume and we will return a clear price ladder with volume discounts.
Can you customise wheel diameter, bore and hardness for an existing battery cart model?
Yes. Send us a drawing, a photo with dimensions, or even a worn sample, and we will produce custom chemical resistant polyurethane wheels for battery carts to match your axle and load. We can adjust outside diameter, tread width, bore, keyway, hub length, tread profile and hardness, and we will confirm the recommended hardness based on your load per wheel and floor surface.
How do polyurethane wheels compare with rubber or nylon wheels for this application?
Polyurethane sits between the two: it offers higher load capacity and better cut and tear resistance than rubber, while running quieter and gripping better than nylon. It also resists oil and many chemicals better than standard rubber and is far less likely to mark coated floors. For battery cart duty, the combination of a machined core and a tuned polyurethane tread usually delivers a longer service interval than either alternative.
How do we choose the right tread hardness for a cart that runs on both concrete and steel plates?
Start with the load per wheel and the smallest wheel diameter your cart frame allows, because a heavily loaded wheel on a hard floor needs a harder tread to avoid flat spotting. As a rule of thumb, Shore A 85 to 90 suits lighter carts on smooth floors, while Shore A 92 to 95 handles heavier loads and longer rolling distances. Send us your cart weight, wheel count, speed and floor type, and our engineers will recommend a hardness grade and confirm it with a sample before you commit to production.
What is the delivery time and how do you pack the wheels?
Production normally takes 7 to 25 working days after drawing confirmation and deposit, depending on quantity and whether new moulds are required. Wheels are packed in cartons on export pallets, with bore protectors and moisture barrier film where needed. Custom packing, private label cartons and mixed pallets can be arranged on request.
How do you control quality, and which certifications do you hold?
Quality management follows ISO 9001 procedures and our materials are RoHS and REACH compliant. We check incoming raw materials, measure diameter and runout during production, and sample finished wheels for hardness and bond strength. Certificates, material safety data sheets and third-party inspection reports can be supplied for your audits or customer submissions.
What payment methods and shipping methods do you support?
We accept T/T, and other terms can be discussed for long-term partners. We ship by sea, air and international express, and we can quote FOB, CIF, DDP or EXW depending on your preference. For first orders we are happy to start with a small trial shipment so you can test the wheels in real working conditions.
Do you provide samples before mass production?
Yes. We can supply stock samples for quick evaluation or produce a custom sample to your drawing. Sample cost and freight are usually charged, and the sample cost can be credited against your first volume order. Typical sample lead time is 7 to 15 working days.
What warranty do you offer on these polyurethane wheels?
Standard warranty is 180 days from the shipment date and covers manufacturing defects such as bonding failure or dimensional errors against the approved drawing. An extended warranty can be discussed for bulk orders. Normal wear from abrasion, overload beyond the agreed capacity, and improper fitting are outside the warranty scope, which is why we confirm load and bore details with you before production starts.
Talk to Our Engineering Team
Need wheels that survive your battery room, not just the catalogue? Share your drawing, the load per wheel and your floor condition with us. Our engineers will reply with practical advice, a tailor-made solution and a clear price for your market, and we will stay with your project from the first sample to the last repeat order.
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