1. Function and Application
The 6 Station Cold Capable Bally Flex Tester evaluates the flexural fatigue resistance of leather, composites, vinyl, surface finishes, and other materials at temperatures below ambient. Specimens are folded and clamped between fixed lower clamps and oscillating upper clamps. Each cycle flexes a crease in the specimen to simulate real-world material folding, such as the creases that form in shoe uppers during walking.
This tester is specifically designed for use inside environmental chambers, enabling evaluation at temperatures down to -30°C while the control panel remains external for easy operation.
2. Applicable Test Standards
ASTM D6182
BS 3144: Method 13
DIN 53351
EN ISO 5402
IUP 20, SLP 14
TSL 5101G Sec. 3.14.1
3. Technical Specifications
| Feature | Specification |
|---|---|
| Stations | 6 |
| Temperature Range | Ambient to -30°C |
| Motor | Brushless electric motor |
| Control Unit | Remote, programmable count-up controller with automatic stop; digital temperature display, soak timer, and cycle counter |
| Construction | Non-corrosive aluminum and stainless steel; powder coat and anodized finishes |
| Bearings | Precision ball and needle bearings |
| Footprint | Compact design, 22″ (559 mm) required inside environmental chamber |
| Protective Features | Vented protective cover protects operator hands from pinch points |
| Power Requirements | Supply voltages vary; must be specified at time of purchase |
4. Features and Advantages
Cold Temperature Capability: Operates reliably in environmental chambers down to -30°C.
External Control Panel: Allows the tester to be placed inside cold chambers while controls remain outside.
Programmable Count-Up Controller: Ensures accurate cycle counting and repeatable results.
Compact Design: Minimal chamber footprint of only 22″ (559 mm) length.
Durable Construction: Aluminum and stainless steel components resist corrosion; powder coat and anodized finishes improve longevity.
Precision Bearings: Smooth and accurate flexing without mechanical interference.
Adjustable Parameters: Jog speed and test speed can be tailored to different test specifications.
User-Friendly Operation: Soak timer, temperature display, and cycle counter simplify setup and monitoring.
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