7 Inch Solid Tyre Wheel Assemblies for Wheelchairs
1. Product Overview
Our PU solid tyres adopt microcellular elastomer material with great resilience. The inner microporous structure absorbs vibrations and suppresses noise efficiently, delivering a soft, comfortable ride for users. Featuring ultra-low running noise, these puncture-free polyurethane wheels are ideal for quiet wheelchair operation.
2. Core Production Tech: Spin-Cast Molding for Powered Wheelchair Tyres
We adopt spin-cast molding to inject PU foam into tyre casings. This technology forms a dense, rigid tread while retaining flexible sidewalls. The foam fills evenly and precisely inside the tyre, delivering reliable shock absorption and consistently smooth rides.
3. Tyre Assembly Procedures
A. Preparatory Work Get semi-finished tyres, wheel rims, screws, nuts and all fittings ready; calibrate and debug assembly equipment beforehand. B. Assembly Operation Fit tyres onto rims strictly following standardized assembly specifications for foam-filled wheels. C. Finished Product Inspection All completed wheel sets must pass side impact and radial runout tests. Only qualified items go through cleaning and packaging.
4. Comprehensive Performance Testing for PU Tyres
To guarantee stable performance and long service life, every batch undergoes a full series of lab tests:
Rolling drum durability test
Tensile & compression strength test
Side impact resistance test
Drop impact test
Static load bearing test
Circular track fatigue test
Friction coefficient test
Torque resistance test
Noise measurement test
Bump vibration test
5. Strict QC for PU Raw Materials
Raw Material Sourcing We source premium PU chemical raw materials from globally reputable suppliers including Dow, BASF and Air Products.
Incoming Batch Inspection We run random cup foaming tests on every incoming material batch to verify stable raw material quality.
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