Products Description
Foam Filled Tires
Polyurethane foam-filled tires, commonly abbreviated as FF tires, are composed of two core components: an outer rubber casing and an internal filler made of microcellular polyurethane elastomer. This tire variant boasts outstanding merits including zero inflation requirement, puncture resistance, no flat tires, excellent shock absorption, maintenance-free operation and reliable safety. It has gained extensive application on wheelchairs, electric mobility scooters, baby strollers, service robots, tool trolleys and athletic gear. The product retains the classic visual appeal of conventional rubber tires that customers prefer, while overcoming all drawbacks of pneumatic tires-such as vulnerability to punctures, air leakage, sudden deflation and the hassle of regular upkeep.
Dual-Layer Composite Craft Breakdown
Different from simple post-filled foam tires on the market, our product adopts one-time spin casting foaming craft inside complete Cheng Shin rubber casing:
- Outer Cheng Shin Rubber Layer
Custom rubber formula with moderate hardness tailored for mobility travel. Horizontal drainage grooves on the tread quickly drain rainwater to avoid slipping on wet roads. Thickened sidewalls resist scratches from curbs and sharp stones, slowing aging and cracking under long-term sunlight exposure. The rubber bead locks tightly onto standard 4.00-5 wheel rims without slipping under heavy loads.
- Injected Microcellular PU Foam Core
We inject high-density modified polyurethane into the whole tire cavity under constant temperature spinning equipment. Foam pores stay evenly distributed between 50–100μm after curing. No hollow areas or hard blocks inside the tire, so rolling resistance stays consistent from left to right side. The foam maintains stable elasticity under -10℃ to 50℃ temperature change, no softening in summer or hardening in winter.
Applicable Users & Commercial Scenarios
End User Scenarios
Elderly users relying on mobility scooters for daily shopping & park walks; paraplegic /disabled people using electric wheelchairs for short-distance commuting; families needing stable mobility tools for home & outdoor mixed use; users living in suburban areas with gravel, uneven pavement roads.
Business Client Application
Rehabilitation equipment OEM & assembly factories; medical device wholesale distributors; mobility spare parts online & offline retail stores; nursing home & rehab center facility procurement; after-sales maintenance service shops for scooters & wheelchairs.
About Company
Company Introduction
We launched our business in Xiamen back in 2015, with a core goal: to develop polyurethane solutions that deliver safer, more comfortable movement for users around the globe. From a specialist producer of PU wheels, we have gradually grown into a diversified industrial group. Currently, our large-scale production facility is situated in Longyan, and our core innovation centre is housed at the Xiamen Institute of Rare Earth Materials, affiliated with the Chinese Academy of Sciences. This arrangement keeps us closely connected to the latest advancements in material technology.
Longyan Headquarters Production Base
Located in Longyan Innovation Park, this base serves as our core hub for manufacturing, finished product testing, warehousing and logistics. It supports standardized full-process mass production and bulk order delivery.
Xiamen R&D Branch
Settled in Xiamen Rare Earth Materials Research Center, Haixi Institute, Chinese Academy of Sciences. We build a university-enterprise joint lab on this national-level research platform to research eco-friendly foaming formulas and lightweight modified materials, realizing the transformation from lab technology to industrial mass production.
UNT Xinyonghua Subsidiary
Independently operates HVAC thermal insulation panel business. We produce PU/PIR insulation cores for ventilation ducts, supply duct accessories and processing tools, and provide on-site technical guidance for duct system installation to engineering clients.
Corporate Culture
- Corporate Mission
Deliver safer, more convenient and comfortable mobility & rehabilitation experiences, and upgrade the usability of livelihood assistive devices via innovative polyurethane materials.
- Corporate Vision
To become a global benchmark enterprise in segmented polyurethane application, and lead the formulation of industrial technical standards for rehabilitation and lightweight mobility materials.
- Core Spirit
Closed-loop execution: Plan, implement, review & adjust, iterate and optimize to continuously polish products and operation processes.
Continuous breakthrough: Proactively upgrade material formulas and molding processes, and drive long-term corporate growth through technological innovation.
Value coexistence: Offer career growth paths for employees, create differentiated product competitiveness for clients, and take environmental and social responsibilities as a manufacturer.
- Team DNA
All staff uphold the mindset of unity, pragmatism, courage and long-term development. R&D, production and sales teams share consistent goals, prioritizing long-term stable strategic cooperation over short-term order profits.
Full Product Introduction
- PU Microcellular Solid Tires
Adopting eco-friendly water-blown foaming technology, the internal foam pores are uniformly controlled at 50-100 microns, delivering better shock absorption, load-bearing and wear resistance than ordinary PU tires. The tires feature puncture resistance, maintenance-free performance, low noise and high load capacity. Application: Electric wheelchairs, mobility scooters, walkers, shared e-bikes, baby strollers, AGV robots and small agricultural machinery. We maintain long-term partnerships with top domestic and foreign brands of rehabilitation equipment and intelligent robots.
- High-Resilience Foam Products
Our signature memory foam pillows are designated supplies for international bedding brand Sealy. We also produce rehabilitation cushions, backrests and office buffer pads with lasting rebound performance and anti-collapse property for long-term use.
- Custom Integral Skin Foam Parts
We specialize in one-piece molded custom parts for medical equipment armrests, backrests, seat cushions and infant car seats. The dense outer skin is waterproof while the inner layer provides cushioning, and custom irregular shapes can be developed per client drawings.
- PU Rigid Foam Inserts
Lightweight yet high-strength filling material, widely used for weight reduction inside carbon fiber wheelchair frames, fishing gear and model aircraft, balancing structural support and lightweight demands.
Our business covers countries worldwide, with long-term stable cooperation with domestic and foreign brands in rehabilitation equipment, intelligent mobility and home supplies:
- Medical & Rehabilitation: Leading manufacturers of electric wheelchairs and walking aids at home and abroad
- Home Supplies: World-famous bedding brand Sealy
- Special Equipment: Manufacturers of AGV robots, small agricultural machinery and children's mobility products
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