SCT-PLC Stress Crack Tester for PET Bottles

The SCT-PLC Stress Crack Tester is designed to test the internal stress in a bottle’s base and for determining the stress crack resistance of blow-molded PET carbonated soft drink bottles. It functions by measuring the propensity for base cracking upon exposure to an aqueous sodium hydroxide solution in a controlled environment, simulating the long-term behavior of bottles.

Models available:
  • 1 testing position
  • 5 testing positions
  • 6 testing positions
  • 10 testing positions
  • 12 testing positions
 
Testing procedure:
  • Install and clamp the sample bottle on each position, then close the door.
  • The affusion head will seal and fill the bottle automatically up to a target volume of water, then pressurize the bottle to a predefined pressure and stay for a specified amount of time (eg: 5 minutes). While the bottle is filled with water and is pressurized, the system will fill the solution into each posistion (number of positions dependent on model ordered)
  • When time is up, all the testing positions descend to a predefined point and the bottle base will be completely covered by the aqueous solution
  • Record the time and pressure at which each bottle failed, up until a predefined time
  • The test stops after the predefined time
 
Attributes:
  • Single or Multi-position design, more convenient and efficient (Please consult AT2E for other position requests)
  • PLC control ensures the highest accuracy and replicability
  • High-quality stainless steel frame, for safety and durability
  • Flexible position selection: each position can be controlled separately within the system. Users can enable the positions according to their test requirements
  • Automatic affusion system
  • Auto pressure compensation during testing process
  • Suitable for testing various bottle sizes
  • Corrosion-resistant design
  • Anti-explosion and clear observation window, for safe and easy observation of the sample status during tests
  • Various safety features
 
Technical data:
  • Testing pressure: selectable from 0 - 6 Bar (Please consult AT2E for higher pressure requests)
  • Display resolution: 0.01 Bar
  • Pressure units: Bar / psi
  • Testing time: selectable from 0 - 200 minutes (Please consult AT2E for longer testing time request)
  • Sample range: 60 - 120 mm in diameter / 150 - 350 mm in height (Please consult AT2E for bigger sample)
  • 7” LCD touchscreen
  • Recommended solution: Sodium Hydroxide (NaOH) Solution  0.200%
  • Recommended operating temperature: 2 – 50 °C
  • Communication port: RS232
  • Air supply: 0-8 Bar (Air supply ≥Max. testing pressure)
  • Water supply: tap water (≥ 1.5 bar)
  • Main supply: 220 V
  • Overall size:  190×66×123 cm
  • Net weight: 260 kg
 
Optional parts:
  • Mini printer

PRODUCT VIDEO