Negative Leak Test Machine for Jointed Plastic Parts

The CSD Leak Test Machine is a specialized system designed for negative pressure leak testing of assemblies where plastic-to-plastic welding (vibration or ultrasonic) requires non-destructive validation. By utilizing a vacuum-based method, the system ensures leak integrity without risking damage to welded joints.

Key Technical Features:

Negative Leak Testing Technology:

Integrated with an ATEQ F620 leak tester, the system performs vacuum leak testing at -100 mbar using an Atlas Copco vacuum pump. This prevents destructive effects associated with positive pressure testing of welded plastic joints.ong>

Dual Test Functionality:

• Blockage Test – Conducted on 2 spigot holes with +200 mbar pressure @ 10 LPM to detect blockage or flash from welding.
• Leak Test – Performed under -100 mbar vacuum conditions, ensuring no atmospheric air enters the sealed part.

Testing Parameters:

• Part Volume: 1000 cc
• Allowable Leak Rate: -10 cc

Versatile Operation:

• Automatic & Manual modes for flexible testing.
• Variant selection and configuration via touch HMI interface.
• Clear operational guidance displayed on-screen.

Mechanical & Pneumatic System:

• Pneumatically controlled jigs & fixtures for accurate and reliable handling.
• Sturdy and ergonomic machine design for safe, efficient operations.
• Built-in emergency stop and safety interlocks.

Data Traceability & Marking:

• Zebra QR Code label printer for product identification.
• Technifore pin-marking system for permanent traceability on parts, ensuring warranty validation even if labels are lost during vehicle use.

Applications:

• Leak testing of automotive plastic parts assemblies.
• Validation of ultrasonically or vibration welded plastic parts.
• Quality control in automotive HVAC systems.