Rockwell Hardness Tester for Plastics R Scale

Bench Rockwell hardness tester with R, L and M scale indenters for rigid plastics. Used for material acceptance and process checks on moulded and extruded plastic parts.

Specification

A steel ball indenter is pressed on the specimen under minor and major loads and the depth difference gives the Rockwell number. Scales R, L and M cover soft to hard plastics. Direct dial readout and robust anvils make it ideal for shop floor use.

Features

• Dial gauge readout for R, L, M scales
• Major loads 60, 100, 150 kgf
• Minor load 10 kgf
• Large elevating screw
• Hardened ball indenters

Technical Specifications

Scales	HRR, HRL, HRM
Major Loads	60, 100, 150 kgf
Minor Load	10 kgf
Max Specimen Height	170 mm
Throat Depth	165 mm
Standards	ASTM D785, ISO 2039-2
Construction	Cast body with hardened anvils

Standard Accessories

• Ball indenters
• Anvils
• Test block