At SMT Caster, quality is not just a promise—it is a verified science. Operating strictly under the ISO 9001:2015 Quality Management System, we maintain an advanced, fully-equipped in-house testing laboratory . Before any caster wheel model leaves our production floor, it must survive testing protocols far more punishing than real-world applications. Take a comprehensive 7-stage tour inside our state-of-the-art quality control laboratory.
01. A Fully-Equipped Testing Ecosystem
Our dedicated quality control laboratory operates as an independent department, housing dynamic run-test machines, salt spray corrosion chambers, drop towers, and automated pneumatic fatigue testers to guarantee compliance with international standards [1.1.4, 1.1.9].
02. Dynamic Load & Endurance
Using computerized weight-stacking machines, we apply continuous loads up to 230 kg onto rolling wheels over a rotating metal track to check dynamic bearing resistance.
03. Continuous Tread Wear
Dual caster wheels are mounted under dynamic weights (20 kg per unit) and run continuously on a rotating disc to evaluate thermal dissipation and tread wear limits.
04. Vertical Compression & Radial Fatigue Trials
For sensitive products like medical twin-wheel casters, radial compression testing is vital. This hydraulic apparatus presses the caster down with continuous force against a moving steel platter, ensuring no bracket flex or bearing failure occurs under extreme payloads.
05. Computerized Pulling Tests
PLC-controlled pneumatic cylinders subject casters to rapid linear pulling, directional shifts, and brake pedal fatigue testing to log micro-mechanical wear.
06. Salt Spray Corrosion Analysis
Zinc-plated samples are exposed to a continuous 5% saline solution (NaCl) mist for up to 72 hours, validating that SMT brackets remain rust-free [5].
07. Drum Conveyor Obstacle & Rolling Resistance Testing
To simulate rough workshop floor joint gaps and physical debris, casters are pressed against a motorized rotating steel drum. This rolling resistance test evaluates how the wheel core, the integrated bearings, and the swivel top plate absorb impact forces, ensuring a smooth, silent glide and secure tracking even when crossing floor obstacles.
Release Date: August 2026