Seam Fatigue Testing Machine Manufacturer and Supplier

Seam Fatigue Tester is used to evaluate the ability of the seams of automotive seat surface materials such as leather and textile to resist fatigue failures.

The surface materials of car seats are mostly spliced and stitched. The stitching strength and the fatigue resistance of the material seams directly affect the comfort and service life of the seats. By testing the fatigue strength of the material joints, the life of the seat can be effectively predicted, and the direction of improvement and optimization to improve its performance can be given.

This seam fatigue testing machine has two work stations to accept 2 test specimens at the same time. Each station consists of a pair of clamps 5 cm in width. The clamp near either side of the machine is pulled by a pendulous weight, always bearing a constant force. When mounting specimens, the spacing between the clamps is allowed to be controlled and fixed by means of an included gauge. It only requires you to turn the screws tightly to fasten the specimens.

An easy-to-use touch screen on the machine is available to enable you to set desired running cycles and control the operation. When the machine is running, the clamp assembly in the middle moves back and forth along the guide rails. In each cycle, the left and right samples go through a loading and unloading process, respectively, and the counter connected to the proximity switch records the movement cycles of the clamps. The machine will stop automatically once the prescribed cycles have been achieved.

Test Principle

Two ends of a sewn specimen assembly is clamped in a pair of opposite grips. The specimen subjected to a constant force makes reciprocating movements within a specified stroke at a prescribed speed and for a given number of cycles. The seam appearance and needle hole elongation are evaluated at completion of the cycles.

Test Standards

  • Toyota TSL 5101G(3.7)
  • GMW 3405
  • Nissan M-0154
  • Ford Motor Co. BN 106-02
  • TSL 5100G Section 4.22, etc.

Main Technical Parameters

Model AT-L9022
Work stations 2
Specimen dimensions 100 mm x 50 mm
Clamp width 50 mm
Clamp spacing 120 / 124 / 140 mm adjustable
Clamp stroke 150 mm
Test speed 30 CPM
Counter 0 ~ 99,999
Weight mass 3 kg (29.4 N)
Weight 50 kg
Machine dimensions 86 cm x 31 cm x 54 cm
Power supply AC 220 V or specified by users

Seam Fatigue Tester Features

  • Made of aluminum and rigid metal.
  • Spacing between holding devices is adjustable to meet different standards.
  • Test speed is adjustable.
  • Allows jog adjustment to facilitate specimen mounting.
  • Configured with an LCD touch screen to control the machine and display data.
  • Able to automatically stop upon completion of preset cycles.
  • Equipped with a transparent acrylic hood to isolate the clamp running area from operators.

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