Products Introduction
Large-Size Spec Design & Optimized Foam Structure
Featured with 11×4.00-4 large outer diameter and widened tread design, this foam wheel adopts full-scale polyurethane foam filling technology with zero hollow space inside. The high-density foam core tightly integrates with the thickened rubber outer tread, forming an integrated and sturdy wheel body structure. Different from small-size wheels, its enlarged grounding area effectively disperses unit pressure. The customized foam density perfectly balances load-bearing toughness and flexible buffering, avoiding rigid vibration during heavy-load rolling and ensuring overall structural durability.
Heavy-Duty Wear Resistance & Terrain Adaptability
The thickened rubber tread is crafted with exclusive wear-resistant texture, which resists abrasion from gravel, cement roads and rough ground. The integrated foam filling structure prevents tire deformation, bulging and layer separation under long-term heavy pressure. Free from inflation maintenance, it perfectly copes with complex outdoor road conditions including slight potholes and uneven pavements. It maintains stable rolling status without slipping or excessive abrasion even in frequent outdoor heavy-duty use scenarios.
Specification
| Dimensions | 11x4.00-4 |
| Outer Rubber Tyre Brand | Cheng shin |
| Tread Pattern |
C165s |
| Composition | Natural rubber combined with polyurethane |
| Internal Filling | Polyurethane foam |
| Wheel Hub Material | Aluminium |
| Color | Grey/Black |
| MOQ | 300 units |
| Production Lead Time | 60–75 working days |
| Application | Replacement components for wheelchairs & mobility scooters |
About Company
Brand Overview & Nationwide Industrial Distribution
Our PU manufacturing venture got underway in Xiamen during 2015, and we relocated all central production workshops to Longyan Innovation Park by 2023, creating a dual-site operation mode split between technical research hub and bulk production hub. The brand runs two distinct specialist affiliates with separate business focuses. Our Xiamen operation is housed within CAS Haixi Rare Earth Research Institute, acting as our central material testing hub and external technical exchange gateway. The UNT factory in Longyan develops and sells PU/PIR air duct insulation boards plus fitting installation accessories, while our flagship Longyan workshop solely fabricates microcellular PU wheels for medical mobility gear, building a dual-stream industrial layout covering mobility spare parts and construction thermal insulation goods.
Stable Global Cooperative Partners of Our PU Wheel Production Line
Our PU wheel workshop has built long-run stable supply partnerships with numerous well-known manufacturers all over the world. Our overseas collaborative brands cover Sunrise, Pride, Golden Technologies, Drive DeVilbiss Healthcare, Kymco, Roma Medical and LG. Reliable domestic manufacturing partners include INTCO, MAOTIAN, LINIX, Innuovo, Chiaphua Components, KANGNI and JIANGTE MOTOR. Years of consistent product stability and flexible customized production capacity make various rehabilitation and mobility equipment manufacturers choose us as their long-term supporting supplier.
Core Strengths of Our Production Plant
We own multiple competitive edges to support global buyers' diverse procurement demands. As self-operated manufacturing plant without middlemen, we guarantee efficient lead time for all batches. We welcome mass wholesale, small replenishment and prototype trial orders flexibly. Our technical crew carries nearly 15 years of polyurethane development experience to deliver professional technical guidance. We tailor wheel dimensions, textures and structures fully matching unique client demands. Every wheel item comes with a full 12-month quality guarantee. Our support staff offers hands-on guidance to tackle all assembly troubles post shipment. Besides, all wheel series pass RoHS and REACH environmental tests to satisfy overseas import standards.
Standardized Quality Control System & Complete Qualification Certifications
We fully implement ISO 9001:2015 quality management system, forming a closed-loop quality control process covering raw material incoming inspection, production process monitoring, semi-finished product sampling, finished product full inspection and after-sale quality traceability. A complete set of standardized operation guidance documents regulates every testing and production link inside the factory. Our products pass multiple authoritative industry certifications: mobility equipment tires meet ISO7176, GB/T18029 national standards; bicycle PU tires obtain TUV safety certification; infant-related foam accessories comply with European GS standards. All environmental test reports are issued by SGS third-party institutions, fully satisfying import access requirements for European, American and Southeast Asian overseas markets.
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