Industrial Aluminum Omni Wheels with Polyurethane Rollers
Product Overview:
In the development of Automated Guided Vehicles (AGVs) and advanced sorting conveyors, engineers face a distinct challenge: traditional swivel casters require physical space to pivot, causing delays and "caster flutter," while solid metal omni wheels easily scratch floors and slip on smooth concrete. The AstraRoll Aluminum Omni Wheel with Polyurethane Rollers is the perfect hybrid solution for modern robotics. The main wheel chassis is CNC-machined from high-strength aluminum alloy, offering massive structural load capacity (up to 80 kg per 100mm wheel) while remaining exceptionally lightweight to maximize your robot's battery efficiency. The peripheral rollers are cast from high-resilience polyurethane (PU). Mounted at exactly 90 degrees to the direction of travel, these PU rollers grip the floor tightly, preventing motor slippage during acceleration while allowing the wheel to glide laterally (side-to-side) in absolute silence. This guarantees flawless, non-marking, zero-radius mobility for your most sophisticated automated systems.
Inquiry Email: sales@astraroll.com
Industrial Aluminum Omni Wheels with Polyurethane Rollers Details
The AstraRoll Technical Advantage
We engineer our aluminum/PU omni wheels to provide the ultimate balance of payload capacity, traction, and kinematic precision:
Lightweight Aluminum Architecture: Battery life is critical in AGV design. By utilizing aircraft-grade aluminum alloy instead of solid steel, we drastically reduce the rotational mass of the wheel. This allows servo motors to accelerate and decelerate faster while drawing less current, maximizing operational uptime.
High-Traction PU Rollers: Hard plastic or metal rollers often spin out (slip) on polished warehouse floors, confusing the robot's rotary encoders and causing navigation errors. Our specialized PU rollers compress slightly under load, providing exceptional grip and accurate odometry feedback.
Whisper-Quiet, Non-Marking Operation: Unlike metal omni wheels that clatter loudly across concrete seams, the shock-absorbing properties of polyurethane ensure smooth, whisper-quiet operation. They will never leave scuff marks, making them perfectly suited for pristine cleanrooms, hospitals, and commercial environments.
True Zero-Radius Turning: Because the wheel does not need to physically swivel to change direction, it eliminates the sweeping space required by traditional casters. An AGV equipped with omni wheels can spin exactly on its own center axis and strafe laterally without any kinematic delay.
Key Specifications
Please note: AstraRoll provides standard catalog sizes (like the popular 100mm profile) as well as custom-machined dimensions for OEM robotics manufacturers.
Outer Diameter (O.D.): 100mm (4") standard. Custom sizes available.
Body / Core Material: CNC-Machined Aluminum Alloy.
Roller Material: High-Resilience Polyurethane (PU).
Load Capacity: ~80 kg (176 lbs) per wheel for the standard 100mm model.
Roller Bearings: Sealed ball bearings on every secondary roller axis.
Operating Temperature: -20°C to +80°C.
Why Choose AstraRoll?
1. OEM Motor Integration
An omni wheel must connect perfectly to your drive system to function correctly without runout. AstraRoll’s CNC department will custom-machine the central aluminum hub coupling with exact bore diameters, keyways, or threaded mounting holes to perfectly mate with your specific NEMA stepper motors, DC gear motors, or servo drives.
2. Multi-Directional Conveyor Matrixes
For the logistics and packaging industries, we supply these wheels in high-volume batches. When mounted upside-down in a matrix across a conveyor table, the PU rollers create a high-grip, heavy-duty sorting deck. This allows automated pushers to effortlessly slide fragile or heavy parcels in any direction without damaging the product packaging.
Frequently Asked Questions (FAQs)
Q: What is the difference between an Omni Wheel and a Mecanum Wheel?
A: The angle of the peripheral rollers. On an Omni Wheel, the rollers are mounted at exactly 90 degrees to the main wheel's axis. On a Mecanum Wheel, the rollers are mounted at a 45-degree angle. Omni wheels are typically used in holonomic drives (often a 3-wheel or 4-wheel cross setup) or as unpowered idler wheels, whereas Mecanum wheels must be used in a highly specific 4-wheel driven configuration to achieve lateral strafing.
Q: Can I use these Omni wheels as unpowered "free-spinning" casters?
A: Yes, absolutely. Many engineers use omni wheels as non-driven support wheels (idlers) on the front or rear of a differential-drive AGV. Because they glide effortlessly side-to-side, they provide perfect load support for the robot chassis without interfering with the steering dynamics of the main driven wheels, entirely replacing the need for traditional swivel casters.
Q: Will the polyurethane rollers wear out quickly?
A: Polyurethane is renowned for its high abrasion resistance, vastly outperforming rubber in industrial environments. While they will eventually wear down over millions of cycles, AstraRoll engineers the rollers to withstand rigorous, continuous 24/7 warehouse operation on standard industrial flooring.
Q1. Are you a trader or direct factory?
We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.
Q2. What are your main products?
AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.
Q3. What about delivery time?
We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.
Q4. How can I get a quote for customized products?
Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.
Q5. What is your payment?
TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.
