Heat Deflection Temperature and Vicat Softening Point Tester

Oil bath instrument that measures the temperature at which molded plastic bars deflect under flexural load or are penetrated by a needle. Used to rate heat resistance of molded parts in automotive and appliance industries.

Specification

Up to six specimens are loaded in a stirred silicone oil bath that heats at a uniform controlled rate. Deflection or needle penetration is read by dial gauges or digital sensors, and the temperature at the end point is logged. A cooling coil shortens turnaround between batches.

Features

• Three or six station configuration
• Heating rate 50 or 120 deg C/h selectable
• Digital deflection sensors 0.001 mm
• Programmable PID controller with cooling coil
• Over-temperature safety cut-off

Technical Specifications

Test Standards	ASTM D648, ASTM D1525, ISO 75, ISO 306
Temperature Range	Ambient to 300 deg C
Heating Rate	50 +/- 5 and 120 +/- 10 deg C/h
Deflection Resolution	0.001 mm
Bath Medium	Silicone oil, 12 litre
Stations	6 independent
Loads	Set of weights for 0.455 and 1.82 MPa
Power	230 V AC, 50 Hz, 3 kW

Standard Accessories

• Weight set
• Needle indenters
• Specimen supports
• Silicone oil sample