Filled Power Wheelchair Tyres 8x2
Aleader (Longyan) New MaterialCo.,Ltd
Aleader has implemented a comprehensive manage-ment system and is equipped with advanced testingequipment to ensure our product quality consistentlymeets the highest standards. Our products adhere to international and national standards such as ISO7176,GB/T18029, and GB/T12996, and have passed environmental protection testing requirements including ROHS 2.0 and REACH. Our infant and child products have successfully met the German GS safety testing requirements, and our bicycle tire products comply with the German Rheinland standards.
Aleader has implemented a comprehensive management system and is equipped with advanced testing equipment. Polyurethane microporous elastic tires are water-foamed, making the manufacturing process more environmentally friendly. They have obtained international environmental certifications such as RoHS and REACH for product environmental compliance.
Inside a PU Foam Filled Tire
The cutaway images show the two main parts of a PU foam filled tire: a conventional rubber tire on the outside and microcellular polyurethane foam filling inside. The rubber casing provides the tread, ground contact, and much of the tire's wear resistance, while the PU foam takes the place of air and supports the tire from within.
This combination gives the wheel a different feel from both pneumatic and solid PU tires. There is no air pressure to check, while the foam can compress slightly under load and help absorb vibration. During production, we pay attention to the filling process and the bond between the rubber casing and PU foam, as uneven filling or poor bonding can affect the finished wheel. For wheelchair and mobility scooter applications, we can adjust the tire size, tread, foam characteristics, and wheel configuration according to the required load and working conditions.
When a PU filled tire carries a load, the foam inside is compressed and deformed. After the load is removed, the material needs to recover without excessive permanent deformation. This is why we pay attention to the foam structure during development. Our engineers compare factors such as cell size, cell distribution, foam density, and cell-wall condition with results from compression, recovery, hardness, and wheel tests. The SEM images do not tell us everything on their own, but they give us a closer look at what is happening inside the material and help us understand differences between formulations and production batches.
PU Material Quality Control
The quality of a flat free tire starts with the PU raw materials. For our polyurethane foam, we source key chemical materials from established suppliers including Dow, BASF, and Air Products.
Before a new batch enters production, our team carries out an incoming material check. One of the checks we use is a cup foaming test, which gives us a quick look at how the material reacts and expands during foaming. We compare the sample with the expected foaming behavior before using the batch for tire production.
Our Partners
Over the years, Aleader has worked with companies across the mobility and rehabilitation equipment industry. Our customers and partners include INTCO, Innuovo, Kangni, Linix, Maotian, Chiaphua Components, and Jiangte Motor, as well as overseas companies such as Pride, Sunrise, Golden Technologies, and Kymco.
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