Micro-computer Controller Cobb Absorption Tester Paper Testing Machine 100 cm² Area 30 kg Weight
Professional Cobb absorption tester for paper and paperboard water absorbability testing. Features micro-computer control, 100 cm² test area, 30 kg construction, and compliance with ISO 535 and GB/T standards. Includes 1-year warranty, global voltage compatibility, and rapid technical support for printing industry quality control.
The Micro-computer Controller Cobb Absorption Tester is a precision instrument designed to measure the surface water absorbability of paper and paperboard materials using standardized COBB test methods. This essential testing equipment provides accurate results for quality control in printing and packaging industries.
The COBB value represents the unit area of paper or paperboard that absorbs water under specific pressure, temperature, and time conditions. The calculation formula is: C = (G2 - G1) × 100, where:
- C - COBB water absorbing value
- G2 - Sample weight after testing
- G1 - Sample weight before testing
| Parameter | Specification |
|---|---|
| Metal cylinder sectional area | 100±0.2 cm² (inner diameter 112.8±0.2 mm) |
| Cylinder height | 50 mm with smooth contact surface |
| Absorbent paper amount | 200-250 g/m² |
| Metal roll specifications | Width 200±0.5 mm, Weight 10±0.5 kg |
| Operating environment | Temperature 20-40°C, Relative humidity |
| Dimensions | 510 × 400 × 365 mm |
| Weight | 30 kg |
| Rolling speed | 75 mm/10 min |
- ISO 535-1991: Water absorbability testing of paper or paperboards - Cobb methods
- GB/T 1540-1989: Water absorbability testing of paper or paperboards
- 1-Year Comprehensive Warranty - Full technical support and replacement coverage
- Global Voltage Compatibility - Manual voltage switching between 110V and 220V
- Rapid Response Service - 24-hour reply guarantee with solutions within 3 working days
- Secure Packaging - Air bubble film protection in wooden cases for safe international shipping
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