Pusey & Jones tester

Measure Pusey & Jones hardness on rubber rollers and rubber-like materials

The Bareiss HPE II Pusey & Jones is a specialized digital hardness tester for rubber and rubber-like materials. It is particularly suited to hardness measurements on rubber-covered rollers and drums, including applications in the paper industry, as well as suitable flat test specimens.

Designed for rubber-covered rollers and drums

Unlike conventional handheld Shore durometers, the HPE II Pusey & Jones incorporates its own test stand and support system. Its configuration allows controlled hardness measurements directly on cylindrical specimens such as rubber-covered rollers and drums.

Bareiss specifies the instrument for coated drums with a material thickness of at least 13 mm. Plate-shaped test specimens can also be tested when they meet the required sample geometry and have a minimum thickness of 6 mm.

Controlled Pusey & Jones measurement method

The electronic measuring system indicates penetration depth directly and provides a zero-setting function. A vertical spindle integrated into the instrument allows sensitive positioning of the measuring system over the specimen.

Lowering the lateral load lever applies the prescribed total force of 9.8 N. The measurement result is read after the specified 60-second test period, providing a controlled procedure for comparing the hardness of rubber-like materials.

Testing according to ISO 7267-3 and ASTM D531

The HPE II Pusey & Jones is designed for testing according to ISO 7267-3 and ASTM D531. These standardized procedures are particularly relevant to the determination of indentation hardness of rubber-covered rollers and similar rubber products.

Digital measurement with onboard data storage

The instrument has a display range of 0 to 300 Pusey & Jones with a resolution of 1 Pusey & Jones. Up to 300 measurements can be stored in the internal memory, making it easier to collect results during inspection and quality-control work.

RS-232 interface for measurement data

An RS-232 data interface provides a means of transferring measurement results to compatible external equipment. The communication specification is 9600 baud with 1 start bit, 8 data bits and 1 stop bit.

Long battery operating time for portable testing

The HPE II Pusey & Jones operates from a 3.6 V lithium battery and provides approximately 2,000 hours of battery operation. Its integrated test stand and flexible support feet combine controlled positioning with a design that can be brought directly to suitable rollers and test specimens.

Frequently Asked Questions

What is the Bareiss HPE II Pusey & Jones primarily used for?

It is specifically designed for measuring the hardness of rubber and rubber-like materials and is particularly useful for rubber-covered rollers and drums, including rollers used in the paper industry.

Can the tester measure curved rubber rollers directly?

Yes. Testing cylindrical specimens is an important application of the HPE II Pusey & Jones. Its integrated stand and support arrangement allow the instrument to be positioned on suitable coated rollers and drums.

How thick does the rubber covering need to be?

Bareiss specifies a material thickness of at least 13 mm when testing coated drums. For plate-shaped test specimens, the manufacturer specifies a minimum specimen thickness of 6 mm.

How long does a Pusey & Jones measurement take?

The prescribed total force of 9.8 N is applied using the load lever and the measurement result is read after a 60-second test period.

Can measurement results be stored?

Yes. The HPE II Pusey & Jones has internal memory for up to 300 measurements and also provides an RS-232 interface for transferring measurement data.