Product Description

The MetalTek™ PR1 Portable Rockwell Hardness Tester is lightweight, portable easy to operate and accurate. The PR1 is designed as a convenient means by which to determine Rockwell Hardness readings in situations that do not lend themselves to bench testing.

The PR1 is secured to the work piece by a quality clamping mechanism. It utilizes a mechanical mechanism to apply the major and minor loads. Since the PR1 employs no weights, it may be used in virtually any position.

The PR1 is ideal for testing stacked sheets, rod and tubing in racks and in areas where clearance is limited.

The PR1 employs major loads of 60, 100 and 150 kg and has a maximum height capacity of 110 mm (4.3 in) and a throat capacity of 55 mm (2.2 in).

The PR1 features a “pistol grip” for ease of operation and speed in performing tests.

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MetalTek™ Model PR1: Features Fill 118 Copy 1 Created with Sketch.

The PR1 Portable Model Features Include:

  • Lightweight Cast Alloy Frame;
  • Integral Dial Gauges;
  • Integral Load Mechanism;
  • Carrying Case;
  • Instruction Manual;
  • 2 Rockwell Test Blocks;
  • Flat Anvil;
  • “V” Anvil;
  • 1/16 inch ball indenter;
  • Diamond indenter.
MetalTek™ Model PR1: Description Fill 118 Copy 1 Created with Sketch.

1. Upper Clamp

2. Lower Clamp
3. Support Anvil
4. Adjusting Screws
5. Clamping Knob
6. Penetrator w/ Indentor
7. Penetrator Tightening Screw 8. Weigh Bar
9. Loading Knob
10. Pistol Grip Handle
11. Minor Load Dial Indicator
12. Indicator Seat Support
13. Indicator Seat
14. Major Load / Penetration Indicator

MetalTek™ Model PR1: Direction for Use Fill 118 Copy 1 Created with Sketch.

Refer to above diagram for numerical references shown below in bold.

  • Select the appropriate Indenter [6];
  • Select the appropriate Anvil [3];
  • Place specimen between Clamp [1] and the Anvil [3];
  • Secure specimen by rotating the Clamping Knob [5];
  • Rotate bezel of Minor Load Indicator [11] to “zero”;
  • Rotate Load Knob [9] to apply 10 kgf Minor Force;
  • Rotate bezel of Major Load Indicator [14] to “zero”;
  • Rotate Load Knob [9] to apply Major Force:

· 150 kgf (Diamond Indenter) for HRC (black scale);

· 100 kgf (1/16” Indenter) for HRB (red scale);

· 60 kgf (Diamond Indenter) for HRA (black scale).

  • Rotate Load Knob [9] to release Major Force;
  • Read Hardness Value on Penetration Indicator [14];
  • Rotate Load Knob [9] to release Minor Force;
  • Remove the specimen.
MetalTek™ Model PR1: Specifications Fill 118 Copy 1 Created with Sketch.
Model NumberMaximum Height Capacity Maximum Throat Depth Weight
PR1 4.3 in. (110mm)2.2 in. (55mm) 3.5 lb. (1.6kg)

Index Terms: Fill 118 Copy 1 Created with Sketch.

Rockwell, Rockwell hardness, portable, portable Rockwell, ASTM E18, E18, metal hardness test, metal hardness, metallic materials, hardness scale, Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials, Rockwell Superficial Hardness, plastic, hardness of plastics, plastic hardness, 77.040.10, ISO 2039, ISO 3738, ISO 6508, 83.080.01, 77.160, BS EN ISO 6506, BS EN ISO 6507, BS EN ISO 6508.