Shrinkage Measurement Apparatus for Molded Plastic Plaques

Measuring system for determining mold shrinkage of injection molded plaques in flow and cross-flow directions. Used by mold makers and molders to size cavities and check process stability.

Specification

A precision stage with a dial or digital indicator measures plaque dimensions against the mold cavity size after conditioning. Results are expressed as percent shrinkage after 24 h and 48 h. A fixed reference block ensures repeatability.

Features

• Granite base for flatness
• Digital indicator 0.001 mm
• Reference gauge block for zero setting
• Holds plaques up to 150 x 150 mm
• Measures flow and transverse directions

Technical Specifications

Test Standards	ISO 294-4, ASTM D955
Measuring Range	0 to 150 mm
Resolution	0.001 mm
Accuracy	+/- 0.005 mm
Plaque Size	Up to 150 x 150 x 4 mm
Base	Black granite, 300 x 200 mm
Output	Digital indicator with RS232
Power	Battery operated indicator

Standard Accessories

• Master gauge block
• Test plaques fixture
• Carry case