Description
Custom Miniature Size PU Wheels for Compact Robots
Why Choose This Product
Our miniature PU wheels feature a precision-engineered hub and a specialized polyurethane tread formulated for high traction and minimal noise on hard floors. Unlike standard rubber wheels that wear quickly under continuous use, our PU compound provides measurably longer service life — abrasion loss is less than 0.05g under standard DIN testing. This translates directly to lower replacement frequency and reduced total cost of ownership for your robot fleet. The wheels are dynamically balanced to ≤0.03mm, ensuring vibration-free operation even at higher speeds. Every batch is tested for hardness consistency (Shore A 80° ±2°) and adhesion strength between tread and hub, with full traceability documentation available.
Customized hardness from Shore A 70° to 95°, multiple hub materials (aluminum, steel, nylon), and a wide range of colors are available. As a China-based OEM/ODM manufacturer, we provide flexible design support for AGV integrators and robot OEMs. Typical applications include compact transport robots, medical delivery carts, and automated guided vehicles in warehouses.
Typical applications: Intralogistics robots, medical delivery robots, service robots, AGV transport systems, automated production lines, and small package sorting equipment.
Technical Specifications – Miniature PU Wheel
These miniature polyurethane wheels are designed for compact robots and industrial transport use. As a China OEM/ODM manufacturer, we support customized sizes, hardness, and core materials to match your robot design.
| Standard Miniature PU Wheel – 40mm Diameter, Aluminum Core, Shore A 80° (Customizable) | |
| Diameter | 30mm / 40mm / 50mm / 60mm (custom sizes available) |
|---|---|
| Width / Tread | 12mm – 25mm (customizable) |
| Hub Material | Aluminum alloy (standard) / Steel / Nylon (OEM option) |
| Tread Material | Premium Polyurethane (PU), Shore A 70°–95° |
| Hardness (Shore A) | 70° – 95° (recommended for robots: 80°–85°) |
| Load Capacity (per wheel) | 5–25 kg depending on diameter and hub |
| Dynamic Balancing | ≤0.03 mm |
| Certifications | ISO9001:2015, RoHS, REACH, Test Reports |
| Temperature Range | -20°C to +80°C |
| Color Options | Blue, Red, Gray, Green (custom colors supported) |
| Custom Services | OEM/ODM: any size, hardness, hub material, color. Free two revisions on custom orders. |
✔ Suitable for compact robots, AGVs, and intralogistics systems. ✔ Custom PU compound for low rolling resistance and long life. ✔ Bulk orders welcome – contact us for wholesale pricing and sample support.
Details Images – Construction & Application
Commonly Used Elastomer Properties (Material Performance for Miniature Wheels)
| Property | Test Value | Standard | Remark |
|---|---|---|---|
| Hardness | Shore A 80° ±2° | DIN ISO 7619 | Balanced grip & durability |
| Abrasion Loss | <0.05 g | DIN 53516 | Excellent wear resistance |
| Tensile Strength | ≥25 MPa | DIN 53504 | High structural integrity |
| Elongation at Break | ≥400% | DIN 53504 | Good flexibility |
| Tear Resistance | ≥50 N/mm | DIN ISO 34 | Resists cuts and snags |
| Adhesion to Hub | ≥3.5 N/mm | Internal test | No tread separation |
Ratings: Test values verified by third-party lab. Polyurethane offers excellent wear resistance and low rolling resistance for miniature robot wheels – directly translates to longer service life and reduced battery consumption. Custom hardness from Shore 70A to 95A is available from our factory.
About ZHXPRECI – China OEM/ODM Factory for Miniature PU Wheels
About Us
Customers Visiting
As a China-based manufacturer and OEM/ODM supplier of industrial polyurethane wheels and rollers since 2012, ZHXPRECI serves clients in over 50 countries. We offer customization — from hardness (Shore A 70°~95°) to hub materials (aluminum/steel/nylon) and mounting patterns. Our products are tested to meet ISO9001 standards, supporting reliable performance for your compact robots and automated transport systems. Wholesale orders are welcome with competitive direct pricing.
Factory & Equipment
Our Certifications (ISO9001, RoHS, Testing Reports)
Production & Inventory Policy
Lead time: Actual delivery time may vary due to raw material availability, machine scheduling, and peak season fluctuations. After order confirmation, we provide the most accurate estimate and keep transparent communication.
Stock status: We generally do not hold large finished-goods inventory, but some popular standard models may have limited dynamic stock (which changes as sales and production progress). Please confirm real-time availability with our team before ordering.
Bulk & urgent orders: For mass production or tight schedules, we recommend early discussion of capacity and production planning. We will do our best to support your timeline.
Frequently Asked Questions – Miniature PU Wheels
1. Can I get a custom hardness or color for my PU wheels?
Yes, we offer full customization of hardness (Shore A 70°–95°), color, and hub material to match your robot design and floor conditions. Our R&D team can develop a tailored PU formulation to meet specific traction, noise, or load requirements. Let us know your target parameters.
2. What is the minimum order quantity (MOQ) for custom miniature wheels?
Our MOQ for custom sizes and colors is typically 500 pieces per specification. For standard sizes, we can accommodate smaller trial orders of 100–200 pieces. Please contact us with your target quantity, and we will provide a tailored quotation.
3. How do you ensure consistent quality across production batches?
Every batch undergoes incoming material inspection, in-process hardness and adhesion checks, and final dynamic balancing and visual inspection. We retain samples from each lot for 24 months, and test reports are available on request. Our quality system is ISO9001 certified and audited annually.
4. Can these wheels be used on carpet or uneven floors?
Our PU wheels are optimized for hard, smooth surfaces such as tile, concrete, and sealed wood. For soft or uneven floors, we recommend a softer PU compound (Shore A 70°–75°) and larger diameter for better floor clearance. Our engineering team can advise the best formulation for your specific environment.
5. What is the typical lead time for a custom order?
Lead time depends on the complexity of customization and current production load. For a standard custom wheel (new color or hardness), typical lead time is 2–3 weeks after mold confirmation. For new hub designs requiring mold fabrication, please allow 4–6 weeks. We will always confirm a realistic schedule before order placement.
6. Do you provide warranty or after-sales support?
Yes, we offer a 12-month warranty against manufacturing defects in material and workmanship. If any quality issue arises, we will evaluate and provide replacement or corrective action promptly. We also offer technical support for wheel selection, integration, and maintenance advice.
7. What packaging options do you provide for international shipping?
Standard packaging includes individual plastic bags and sturdy cartons. For bulk orders, we offer wooden cases, pallets, or container loading. Anti-rust treatment is applied for sea freight.
8. How can I get a custom sample for evaluation?
Custom samples are available with a reasonable sample fee (refundable on bulk order). Our engineering team supports 2D/3D drawings modification for mounting patterns and axle sizes. Just share your design file.
Looking for a reliable manufacturing partner for your compact robot project?
Get in touch for quick quotes, custom samples, and volume discounts. We are here to support your project from design to delivery.
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