Bundesmann Water Repellency Tester UI-TX74
Bundesmann Water Repellency Tester is to determine textile fabric water repellency by a simulated rain shower. This machine has 4 cups which will rotate during the test and collect the water.
1. Unuo Bundesmann Water Repellency Tester Features
-100% match to Bundesmann test standard
-Equipped with 140mm diameter cutting die
– 7-inch color touch screen, Chinese and English menu operation;
– All parts in contact with liquid are made of stainless steel, which is strong, anti-corrosion, and anti-rust.
– Dripper pre-exhaust device;
– Automatic sample wiper;
-Four 15-degree inclined test sample cups;
– Easy-to-install sample holder;
– Comes with water filtration device.
2. What is the Bundesmann method?
Fabric water repellency tested by rain-shower is known as the Bundesmann method. In the top of the machine, there is a water spray system, which has a specified size and a mount of nozzoles, will spray water (100±5)ml/min. In the bottom of Bundesmann rain shower, there are 4 cups which are to fix samples and will rotate to collect the water which passes through the fabric during the tests. Besides, every cup inside has a wiper which will press against the underside of sample during the sample.
Bundesmann water repellency test can be used to determine the effectiveness of finishing procedures for rendering textile fabrics water-repellent.
3. Bundesmann Test Standards
GB/T14577, ISO9865, BS EN 29865, DIN53888, JIS L1092
4. Water repellence test method
Bundesmann is a kind of water repellence test methods. Unuo Instruments also provide other water repellence tester – Spray Rating Tester
5. Unuo Bundesmann Water Repellency Tester Specification
1. Rainfall area: about 1300cm2
2. Water outlet holes of the dripper: 300
3. Rainfall (per 100cm2): (100～300)ml/min (adjustable)
4. Specifications of the test piece: diameter 140mm
5. Test area: about 80cm2
6. Test sample cup diameter: 100mm
7. Installation angle of the test sample cup: 150
8. Rotation speed of test sample cup: 6r/min
9. Cross-shaped wiper specification: (48×5)mm
10. Wiper rotation speed: about 20r/min
11. Wiper friction pressure: about 2.5N
12. Test time: the display shows
13. Power supply: AC220V±10% 50Hz 200W
14. Dimensions: (600×800×2350)mm
15. Weight: about 190kg