The comprehensive strength tester for chairs is suitable for conducting backrest strength performance tests on finished office chairs before delivery. It simulates the normal daily‑use conditions of furniture to check whether the structural components of office chair backrests remain intact and whether their usage functions are lost after repeated use.
Secure the office chair to the test bench with clamps, and perform static or dynamic load tests on the chair back respectively by using a transmission belt to simulate the force characteristics in actual use.
This instrument is designed and manufactured in accordance with the backrest strength test requirements specified in 《ANSI_BIFMA_X5.1_2011》.
It includes:
《ANSI_BIFMA_X5.1_2011》: 5. Backrest Strength Test‑Static‑Type I
6. Backrest Strength Test‑Static‑Type II and Type III
| Item | Specification |
|---|---|
| Backrest loading capacity | 3000N |
| Backrest test height | 0‑400 mm (horizontal height) |
| Loading frequency | 5‑20 times/min (adjustable) |
| Backrest loading pad dimension | 305×89 mm |
| Weight (approx.) | 250 kg |
| Power supply | 1‑phase AC 220V, 50Hz, 5A |
1. Freely Adjustable Test Channels
The office chair comprehensive testing machine is equipped with a manual lifting device, enabling load‑testing of chairs of various heights at different angles. The minimum test height for seat surface compression is 10 mm, and the maximum test height reaches 1000 mm. During product assembly, technicians will adjust the optimal height for you according to actual conditions. If height adjustment is required on your own, you may operate via the lifting controller.
2. High‑Quality Components
This machine adopts well‑known domestic and international components. The seat‑back linkage system uses APS high‑strength aluminum alloy profile frames, Taiwan‑made gear reducers, sensors, Delta servo motors and other renowned domestic and overseas parts.
3. Power‑Failure Protection
The tester is fitted with a power‑failure protection device, which activates immediately upon power loss to save current test data. When power is restored, users can review previous test data and resume testing.
4. Abnormality Protection
The instrument features electric cylinder travel limit and sensor force‑value protection functions. Electric cylinder travel limit restricts the travel range of the electric cylinder in the chair‑back test channel; sensor force‑value protection limits the force‑bearing range of the instrument. The machine will stop for protection once the set force value is exceeded.
5. Sturdy Support and Easy Mobility
The instrument is supported by Fuma casters, featuring simple operation, flexible movement and convenient adjustment, alongside large load‑bearing capacity and a distinctive appearance. An adjustable turntable is installed internally, delivering functions including support and fixation, level adjustment, movement and shock absorption.
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