Calibration tester C680M

compressed airtensilelaboratory

The C680M Elmendorf Tearing Tester is a computer-controlled laboratory instrument for measuring tear resistance of films, sheets, paper, board, textiles and non-wovens. It uses a pendulum to supply tearing energy and calculates consumed energy to determine tear force.

Product Features

• Computer control with automatic electronic measurement for straightforward operation.
• Pneumatic sample clamping and automatic pendulum release to minimize operator-related variation.
• Computer-assisted adjustment system to maintain optimal test conditions.
• Configurable with multiple pendulum capacities to cover different test ranges.
• Professional software supporting results export in various units.
• Standard RS232 interface for external access and data transfer.

Test Principle

• Raise the pendulum to a defined height to store potential energy. The freely swinging pendulum uses that energy to tear the sample; the control system calculates the energy consumed to derive tearing force.

Reference Standards

• ISO 6383-1:1983
• ISO 6383-2:1983
• ISO 1974
• GB/T 16578.2-2009
• GB/T 455
• ASTM D1922
• ASTM D1424
• ASTM D689
• TAPPI T414

Test Applications

• Basic applications
  • Plastic film and sheet (polyolefin, polyester, aluminum-plastic composite film, etc.)
  • Paper and cardboard
  • Textile materials
• Extended applications
  • Heavy bags
  • Rubber latex gloves
  • Stretch film
  • Paper subway tickets

Product Configuration

• Standard configuration: Mainframe, 1 basic pendulum, 1 calibration weight, professional software, communication cable.
• Options: Basic pendulums (200gf, 1600gf); additional weight increments (400gf, 800gf, 3200gf, 6400gf); calibration weights (200gf–6400gf); computer (optional).
• Note: Air source interface is Φ4 mm polyurethane tubing; compressed air supply provided by the user.

Characteristics / technical specifications

• Pendulum capacities: 200gf, 400gf, 800gf, 1600gf, 3200gf, 6400gf.
• Air source pressure: 0.6 MPa (user-supplied).
• Air connection: Φ4 mm polyurethane tube.
• Dimensions (L × W × H): 480 mm × 380 mm × 560 mm.
• Mainframe power supply: 220 VAC 50 Hz / 120 VAC 60 Hz.
• Net weight (mainframe with 200gf basic pendulum): 40 kg.