Description
Custom High-Speed Polyurethane Wheels for Sorting Systems – China Factory Direct OEM/ODM PU Wheels for Parcel Handling Lines, Sorter Modules and High-Throughput Conveyor Networks
These custom high-speed polyurethane wheels for sorting systems are built for parcel handling lines and high-throughput conveyor networks, where line speed, quiet running and positional accuracy decide throughput. Each wheel is cast from a polyurethane formulation developed in-house at Shore A 92 ± 2 hardness and then dynamically balanced to G6.3, so vibration and noise stay low even during continuous running at 5 m/s. The precision-machined hub holds bore and outer diameter to ±0.05 mm, which keeps the wheel tracking true on the rail and protects the sorter module from wobble-related misreads. Against standard rubber or nylon rollers, this tread compound delivers lower rolling resistance and clearly better abrasion resistance, with DIN 53516 abrasion loss at or below 25 mm³ in our bench testing — fewer wheel changes, less maintenance downtime and a lower cost per sorted parcel over the life of the line. Every batch is produced in our own factory in China under ISO 9001:2015 quality management, and we support full customization, OEM and ODM programs covering bore size, keyway, hub material, tread hardness and colour. If you need a trial batch for a pilot sorter or wholesale volume for a nationwide distribution project, our engineers will review your load, speed and duty cycle, then return a straight price, an honest lead time and practical advice before you commit.
Why Choose Our High-Speed Polyurethane Wheels
Sorting systems stress wheels in a very specific way: constant start-stop cycles, high linear speed and tight tracking tolerances. A wheel that is out of round, too soft or poorly balanced shows up within weeks as misreads, jams and premature wear. As a professional custom solution provider based in China, we designed this range to remove that risk for parcel sorters, conveyor networks and automated distribution projects worldwide.
Precision-machined hub and bore. Bore and outer diameter are held to ±0.05 mm, so the wheel seats squarely on the shaft and tracks straight along the rail without wobble, which protects the sorter module and keeps parcel tracking stable.
High-speed rated polyurethane tread. Shore A 92 ± 2 hardness combined with G6.3 dynamic balancing supports continuous operation at 5 m/s, reducing vibration on the sorter frame and cutting noise levels in the sorting hall.
Longer wear life than rubber or nylon. Abrasion loss stays at or below 25 mm³ in our DIN 53516 bench testing, which means fewer wheel changes and a lower maintenance cost over the service life of the line. For a sorter running three shifts, that difference is usually felt as fewer unplanned stops rather than as a line item on a spreadsheet.
Aluminium or steel core options. Aluminium hubs keep rotating mass low for faster acceleration, while steel hubs absorb higher impact loads in heavy parcel applications.
Custom bore, keyway and mounting. We machine to your drawing or sample, so the wheel drops into your existing sorter module without adapters or rework.
Documented quality. ISO 9001:2015 production, RoHS compliant materials and a dimensional inspection report issued for every shipment.
Technical Specifications – High-Speed Polyurethane Wheels for Sorting Systems
The table below lists our standard range of China-made high-speed polyurethane wheels for sorting systems. Sizes outside this range are available as custom orders, and our engineers are glad to offer expert advice on the best match for your conveyor speed, parcel mix and rail type.
| Parameter | Specification |
|---|---|
| Product type | Custom high-speed polyurethane wheel for sorting systems and parcel conveyors |
| Wheel diameter | 80 mm / 100 mm / 125 mm as standard; other diameters on request |
| Wheel width | 30 mm to 50 mm |
| Tread material | Polyurethane, Shore A 92 ± 2; range 85 to 98 available |
| Hub / core | Aluminium alloy or carbon steel, precision machined |
| Bore diameter | 8 mm to 20 mm; plain, keyed, threaded bore or bearing seat |
| Load capacity | Up to 120 kg per wheel at 4 km/h for the 80 mm version |
| Maximum speed | 5 m/s (300 m/min) continuous operation |
| Dynamic balance | G6.3 or better |
| Operating temperature | -20 °C to +80 °C |
| Dimensional tolerance | ±0.05 mm on bore and outer diameter |
| Tread surface finish | Ra ≤ 0.8 μm on the running surface |
| Certifications | ISO 9001:2015, RoHS compliant materials |
| Minimum order quantity | 50 pcs for standard sizes, 200 pcs for fully custom dimensions |
| Lead time | Usually 12 to 20 working days after deposit, confirmed at order |
| Packaging | Carton with foam insert; wooden pallet for bulk shipment |
| Port of loading | Ningbo or Shanghai, China |
Suitable for parcel sorters, tilt-tray and cross-belt modules, roller conveyors, AGV transport systems and automated distribution lines. Custom tread profiles, hardness levels and hub materials are available from our own factory, with bulk orders welcome and wholesale pricing on request.
Details Images – Construction & Application
Material Properties – Polyurethane Compound for Sorting System Wheels
The polyurethane compound used in these wheels was selected for rolling performance rather than for static hardness alone. The figures below come from routine in-house testing and are provided so your engineering team can compare the compound against alternatives before ordering.
| Property | Typical Value | Test Method / Note |
|---|---|---|
| Hardness | Shore A 92 ± 2 | ASTM D2240 |
| Tensile strength | ≥ 45 MPa | ASTM D412 |
| Tear resistance | ≥ 80 kN/m | ASTM D624 |
| Abrasion loss | ≤ 25 mm³ | DIN 53516 |
| Rebound resilience | ≥ 45% | ISO 4662 |
| Compression set | ≤ 20% at 70 °C, 24 h | ASTM D395 |
| Rolling resistance | Lower than rubber and nylon at equal load | Comparison measured on our test bench |
Values are typical figures from routine production testing, not guaranteed minimums for every application. For critical designs we recommend a sample test on your own equipment before volume release.
Design Details & Customization Options
Because sorting systems differ widely in rail type, parcel weight and module geometry, most of our output is made to order rather than pulled from stock. As a China-based manufacturer working with system integrators and OEM equipment builders, the options below cover the majority of requests we receive.
- Tread profile: flat, crowned or grooved, depending on rail type and the parcel mix on your line.
- Hub material: aluminium alloy for low rotating mass, or carbon steel for high impact resistance.
- Bore and keyway: plain bore, keyed bore, threaded bore or bearing seat, machined to your drawing.
- Hardness range: Shore A 85 to Shore A 98, with 92 ± 2 as our standard recommendation for high-speed sorting.
- Colour: natural amber, black, grey or a custom colour matched to your brand.
- Marking: laser-etched part number, batch code or your own internal reference.
- Packaging: neutral cartons or branded packaging for OEM and ODM projects.
About Us – China OEM/ODM Manufacturer of High-Speed Polyurethane Wheels
About Us
Customers Visiting
We are a polyurethane wheel manufacturer based in China, supplying sorting systems, conveyor, AGV and material handling projects worldwide since 2010. Our team covers casting, CNC machining, dynamic balancing and assembly under one roof, which keeps quality control tight and lead times predictable. More than 60% of our output ships to overseas markets including Europe, North America, Southeast Asia and the Middle East.
We work with system integrators, OEM equipment builders and wholesale distributors. Projects range from a few hundred wheels for a single sorter line to repeat orders of tens of thousands per year. Whichever end of that range you are at, you get the same engineering attention and the same direct factory price, with no trading-company margin added in between. As a top professional custom solution provider in China, we offer expert advice and price suggestions for the global market, and our high-speed polyurethane wheels are for sale with full OEM/ODM support.
Factory & Equipment
- Polyurethane casting line with controlled temperature and curing cycles for consistent hardness across batches.
- CNC turning and milling centres for hubs, bores and keyways, holding tolerances to ±0.05 mm.
- Dynamic balancing machine capable of G6.3 and better for high-speed wheel assemblies.
- Hardness, abrasion and compression test benches used for incoming material and outgoing product verification.
- Assembly and packing area with carton, foam and pallet packing prepared for export shipment.
- Annual capacity of around 300,000 wheels, with room to scale for seasonal peaks and large project orders.
Certifications & Quality Assurance
- ISO 9001:2015 quality management system covering casting, machining and assembly.
- RoHS compliant polyurethane compounds and metal components.
- Dimensional inspection report issued with every shipment.
- Third-party inspection by SGS, BV or TUV available on request.
- Material data sheets and MSDS available for your engineering review.
Customer Visits & Project Support
Buyers from Europe, North America and Southeast Asia visit our factory each year to audit production and run sample tests on their own equipment. If travelling is not practical, we can ship sample wheels for your own bench test and join a video call to walk through the casting, machining and balancing stages in real time. This is often the fastest way to confirm a specification before a volume order, and our engineers are happy to give a professional suggestion based on your load, speed and duty cycle.
Production & Inventory Policy
Lead time: Actual lead time is affected by raw material supply, machining capacity and peak-season workload, so it can vary within a reasonable range. We provide the most accurate delivery estimate we can once the order is confirmed and keep you updated throughout production.
Stock status: We generally do not hold finished stock, though a limited number of fast-moving standard sizes are kept on the shelf. Actual inventory changes daily with sales and production, so please contact us to confirm real-time availability before placing an order.
Bulk & urgent orders: For large volume or urgent requirements, please talk to us early about capacity and scheduling. We will do our best to fit your timeline and will tell you honestly if a date cannot be met.
Frequently Asked Questions – High-Speed Polyurethane Wheels for Sorting Systems
1. What makes these wheels suitable for high-speed sorting systems?
Three factors work together. The Shore A 92 ± 2 polyurethane tread resists flat spotting under constant start-stop cycles, the precision-machined hub is held to ±0.05 mm so the wheel runs true, and G6.3 dynamic balancing keeps vibration low at 5 m/s. On a parcel sorter this combination shows up as cleaner tracking, lower noise and fewer unplanned stops.
2. Can you produce custom polyurethane wheels to our own drawing or sample?
Yes, customization is our core business. Send a drawing, a 3D file or a physical sample and we will confirm material hardness, bore size, keyway, hub material and colour. For OEM and ODM projects we can add your logo to the packaging and keep the tooling exclusive to you.
3. What is the minimum order quantity?
50 pieces for standard sizes and 200 pieces for fully custom dimensions. If you are still validating a new sorter design, we can arrange a smaller trial batch so you can run a real test on your line before committing to volume.
4. How do you control quality before shipment?
Every batch goes through incoming material checks, in-process dimensional measurement and a final inspection covering hardness, bore tolerance, roundness and dynamic balance. An inspection report is issued with each shipment, and third-party inspection such as SGS or BV can be arranged if your purchasing process requires it.
5. What is the typical lead time and how do you ship?
Standard sizes usually ship 12 to 20 working days after deposit; fully custom tooling may take a little longer. We ship from Ningbo or Shanghai by sea, air or express depending on volume and urgency. Because lead time depends on raw material supply and production scheduling, we confirm a realistic date when the order is placed rather than quoting an optimistic one.
6. How do I choose the right hardness and diameter for my application?
Hardness and diameter should follow your load and speed profile. Higher speed with lower parcel weight generally suits a harder tread, while heavy parcels and uneven rails call for a slightly softer compound and a larger diameter. Tell us the wheel load, line speed, rail material and ambient temperature, and our engineers will give you a specific recommendation.
7. Do you offer wholesale pricing for large volume orders?
Yes. Unit price decreases as volume increases, and we quote directly from the factory without a trading-company margin in the chain. Send your annual or project quantity and we will return a wholesale price with the tooling and packaging cost broken out separately.
8. What payment methods do you accept?
We normally work with T/T, 30% deposit with the balance against copy of the bill of lading. L/C at sight is also acceptable for larger orders. Payment terms can be discussed for long-term partners with a repeat order history.
Ready to Specify Your Sorting System Wheels?
Send us your wheel diameter, load and line speed, and we will come back with a clear price, a realistic lead time and a recommendation you can design around. Trial samples and custom prototypes are welcome, and our engineers will review your application before quoting so the specification is right the first time.
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