Work Stations: 10

Stroke Length: 11.7 ± 0.35 mm

Cylinder External Dia: 25.4 ± 0.1 mm

Tool Clips: 10 ± 1 mm wide

Counter: 1 ~ 999,999

Model	TF117B
Standards	EN14325, EN ISO 7854 Method B, ISO 7854 Method B, GB/T 12586 Method B
Power	220 V, 50 Hz
Weight	25 Kg
Dimensions	360 mm x 490 mm x 280 mm

TESTEX – a professional textile testing instrument supplier – Schildknecht Flexing Tester is on sale, contact us to get a detailed price quote.

What is Schildknecht flexing tester?

Schildknecht Flexing Tester is designed to determine the resistance of coated fabrics to damage by flexing due to oscillation at 500 times per minute. Accommodates 10 specimens, provided with a resettable electronic counter to record number of cycles.

For testing the Compression-folding (Schildknecht) flex cracking resistance of medical protective clothing, if passed, a further test will go with TF163C Hydrostatic Head Tester, to pass the water penetration under the pressure test. In addition, TESTEX also offers the flexing machine for method A – Demattia flexing method and method C – Crumple/flex method.

How does the Schildknecht flexing tester work?

This test method describes Schildknecht flexing of assessing the resistance of coated fabrics to damage by repeated flexing. Mount a rectangular strip of coated fabric on two opposing cylinders so that the test piece takes a cylindrical shape. One of the cylinders makes a reciprocating movement along its axis, causing the coated fabric to be alternately compressed and relaxed. After certain cycles, the specimen is flexing. This flexing test of the coated fabric reaches a pre-determined number of cycles or until the specimen appears broken.

Test procedure

Cut six specimens (105mm*50mm) from the coated fabric according to ISO 1420, and condition the specimens according to ISO 2231. Fix the specimen on the apparatus, and start the apparatus. After a specified number of cycles, or after a break in the coated fabric, stop the instrument and examine the specimen.

Analysis of flexing damage

Assess the overall appearance, taking into account all visible factors such as wrinkling, cracking, flaking, and discoloration. Compare the flexed test pieces with the unflexed material and grade the flexed material according to the following four scoring levels. For the unbent material, observe the damage to the appearance of the specimen directly with the naked eye.

• 0 None
• 1 Slight
• 2 Moderate
• 3 Severe

Also, if there is flexing damage (cracking and delamination, etc.), please indicate the type and extent of the damage.

More accurate and reliable tests

Microcomputer program control and advanced servo motor bring accurate positioning. The flexometer can automatically return to its original position and keep stable during the flexometer test process to achieve more accurate and reliable tests.

Smart flexometer

It can be connected with the SmarTexLab app installed in smartphones through WIFI, allowing test men to set parameters, monitor the testing process, and get alerts from the device on the smartphone, as well as share the bally flexing test results in real time.

Efficient and durable

12 workstations can be selected, and you can choose single station/multi-station mode. The running times of each mode can be counted separately, so you can test a variety of samples at the same time. The NSK bearings are from Japan, and the machine is made of precision mold-casting stainless steel, with a scratch-resistant appearance, and longer service life.

More user-friendly

The actual noise is only 60dB, much lower than other flexomoter in the market. The operation interface is ergonomic, and the running data can be saved, even if a  power failure occurs.  

The Specification of InnoFlex Bally Flexing Tester

Testing station: 12 stations Testing speed: 100r/min Working stroke: swing angle 22.5°±0.5° Test times: 0~9,999,999 (adjustable) Maximum clamping distance: The maximum folding thickness of the test sample is 7mm Upper and lower spacing: The spacing between the upper and lower clamps is 25mm  

Standard accessories

Cutter die: 70X45mm  

Standards   

ISO 5402-1:2017 ISO 32100:2018 ISO 20344-2011  

Optional standards

SATRA TM 55  

What is a Bally flexing tester?

Bally Flexing Tester, also known as flexometer, leather bending tester. It is an international instrument used to evaluate the bending resistance of various light leather and its surface modifiers under continuous bending.

The Flexometer applies to all flexible materials, in particular leathers, artificial leather below a thickness of 3.0mm, and other coated fabrics, sheet materials, etc. In addition, TESTEX also sells De Mattia flexing tester, Schildknecht flexing tester, and Crumple flexing tester, so you can have more choices.

How does the Bally Flexing Tester work?

How to use a bally flexing tester for a pleximeter test? The flexometer uses one side of the specimen as the internal test and the other side as the outer side. Then clamp the specimen in the upper movable clip. In contrast, the surface to be tested faces outwards and is clamped in the lower retaining clip. Record the bending times, or after bending a certain number of times, and observe the degree of damage. observe the surface of the specimen with a magnifier, and record the degree of damage to test the flexure strength of the specimen.

Flexing test procedure

1 Clamp the specimen in the upper and lower jigs as required by the standard
2 Preset flexing number or flexing time
3 Start of flexing test
4 Observe the degree of damage to the specimen
5 Calculate the number of flexing

Note during the flexing test

When re-clamping the specimen, keep it as close to the original condition as possible.
When stopped, the specimen should be left in its natural relaxed state.
A good light source and magnifying glass should be available to observe the extent of specimen breakage.

Common conditions of damage to specimens, from mild to severe

Discoloration of the coating, but no damage.
Cracking of the coating surface and then loss of adhesion to the leather
The coating becomes a powder and is accompanied by partial peeling.
Granular cracking of the leather.
The continued destruction of the leather fibers and eventual breakage.