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Softening Point Tester RKA 5

Softening Point Tester RKA 5
Softening Point Tester RKA 5
Product Code : 03
Product Description

The Softening Point Tester RKA 5 is a ring-and-ball softening point tester, which automatically determines the temperature at which a substance achieves a particular level of softness. It is ideal to be utilized for samples without sharply described melting points, which become less viscous and softer as the temperature rises.

The Softening Point Tester RKA 5 with its varied ball-centering and dispensing instruments is perfect for resins, polymers, bitumen, adhesives, road-marking materials and sealing compounds.

Key Features

Benefits at a Glance

  • Temperature-heating rate chart for conformity check of each test
  • Multi-point temperature calibration
  • Provision against the erroneous detection of air bubbles
  • Automatic assessment of results acc. to the requirements of the standard
  • Statistical and database functionality
  • The heating system is spill-protected and in a sealed case for safe operation and easy cleaning

Convenient Operation

  • A laser scanner system covers the whole beaker cross-section area. This ensures a very reliable detection of the falling ball.
  • The smart jog wheel operation system (turn and push) and Pmove®, as an innovative operation platform, make it easy to select one of the pre-set standard programs or choose one of the 20 user-definable settings.

Customized User Flexibility

  • Automatic electromagnetic ball-dispensing system (optional) recommendable for softening points > 80 °C.
    It consists of a standard test rack and centering guides in combination with two electromagnetic holders for the automatic ball dispensing after 15 min.
  • Bar code scanner (optional) for up-to-date sample identification

Technical Specifications


RKA 5 incl. test rack with manual ball-centering and dispensing device

Application range

up to 200 °C

Test places



IR radiation, ROBAX® heating plate, spill-protected


100 rpm to 150 rpm (program-dependent)


4.7" graphical color, graphical menu guidance

Cooling after test

Powerful fan

Temperature probe

Pt100 (4-wire, gold contacts)


RS232, 3x USB, LAN, LIMS compatibility

Power supply

115 V or 230 V, 50 Hz/60 Hz, 1.2 kW


230 mm x 470 mm x 520 mm (W x D x H)


approx. 12 kg


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