Dynamic Seam Fatigue Tester

 Summary:                                                                    

The seam Fatigue Tester is applied to determine the strength of upholstery seam constructions which are covered by a standard foam composite cushion by imposing a cyclic, impact, and penetrating load. Dynamic Seam Fatigue Tester complies with ASTM D4033, etc.

Seam Fatigue Tester is the measurement of failures in the three most commonly used upholstery seams - warp sewn to warp (wale to wale), filling sewn to filling (course to course), and warp sewn to filling (wale to course).

 Standards:

   ASTM D4033 etc.

Principle:

Fix a seamed sample on a sample holder containing an elastic foam pad, fix both sides, and use a fixed-weight, freely rotating rubber-surfaced wheel to continuously impact the sample surface from a certain height. , until the set number of times, check whether the seam of the sample is damaged.

Application

Dynamic Seam Fatigue Tester is specially designed to test the strength of upholstery seam constructions which are covered by standard foam composite cushions by imposing a cyclic, impact, and penetrating load. Dynamic Seam Fatigue Tester enjoys a wide application in many industries, such as automobiles, garments, and fabrics.

A rubber-faced wheel of 127mm (5”) diameter impacts the fabric from a height of 150mm (6”) with a mass of 3.75 kg (8.25lbs), 25 times per minute for 7000 cycles. Besides, the Dynamic Seam Fatigue Tester has 3 work positions and 6 positions complying with the requirement. Moreover, it can make 23 or 27 cycles in one minute. Thus, it can be in operation at a relatively high speed.

Specification

Model number	DZ-379
Test position	3
Drive mode	Cylinder drive
Impact speed	(0.4±0.03)Hz,  (25±2)cycles/min
Testing times	7 000cycles
Impact wheel mass	3.75kg (8.25LB)
Dropping height	150 mm (6 in.)
Testing sample	190mmx255mm
Power supply	1∮AC 220V  50/60HZ
Dimensions	160x90x145cm
Weight	150kg
Standards	ASTM D4033

Accessories

Standards accessories	1set	Fixture
	1pc	Air pipe
	1pc	Power line
Optional accessories	Optional	Air compressor