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LUM GmbH - LUMiFrac

The LUMiFrac is an innovative adhesion analyser, which employs centrifugal forces to determine temperature-controlled tensile as well as shear strength.

It employs centrifugal forces to stress multiple samples at once. It provides adhesive and tensile strength as well as shear strength as an absolute physical quantity in N/mm² (MPa).

The LUMiFrac accomplishes this by directly applying an incrementally increasing centrifugal force to the specimen being tested. It determines with high resolution the RPM at the moment of fracturing (employing Centrifugal Adhesion Testing Technology).

All data is transmitted to the well-known and popular operating software SEPView, which automatically calculates and displays the critical force/strength of failure in real time. Furthermore, it allows to analyze, compare & calculate statistics and combine results for up to tens of samples. Related data, as figures of fracture pattern, may be taken into account as well.

Key features

  • Easy preparation of your test specimen
  • Up to 8 samples are analyzed under identical conditions
  • No sample clamping at all - simply insert and start
  • Variable testing speeds
  • Flexible load cycling
  • Wide range of test forces (0.1 N up to 6.5 kN)
  • Test specimen for determination of tensile and shear strength
  • Testing under various temperatures
  • Cost-saving multi-use of test stamps
  • Meets ISO 4624, JIS K 5600-5-7, DIN EN 15870, DIN EN 14869-2, ASTM D4541 and ISO 9211-4

Technical specifications

Load range 0.1 N–6.5 kN
Tensile strength up to 80 MPa
Measurement time 1 min up to 99 h, depending on task and objective
Conformity ISO 4624; DIN EN 13144; JIS K 5600-5-7; DIN EN 15870; DIN EN 14869-2, ASTM D4541 and ISO 9211-4
Samples up to 8 simultaneously
Sample dimension max. 30 mm x 30 mm x >1 mm
Adherent area diameter 7 mm, 10 mm and customized
Test stamp material metal or non-metal
Test stamp weight 4.1 g - 38.7 g (W/Cu up to ca. 58 g)
Dimensions (W x H x D), weight

38 x 29.6 x 64 cm3, 56kg

Rotor speed 100–13,000 rpm
Temperature control –11°C to +40 °C
Data interface USB
Power consumption 100 V, 120 V, 230 V; 50/60 Hz max. 1050 W

Adhesion Analyzer LUMiFrac®: Technology, Use, Software & Application Webinar

  • Agriculture
  • Biopharmaceutical and Biotechnology
  • Chemical
  • Cosmetics & Personal Care
  • Education & Academics
  • Food & Beverage
  • Mining & Minerals
  • Oil & Gas
  • Paper & Wood
  • Pharmaceutical
  • Polymers, Plastics and Rubbers
  • Powders & Pigments / Coating
LUMThe LUM GmbH is one of the leading producers for analytical devices for dispersion analysis and particle characterization. On the basis of longtime experiences in the field of fluid mechanics, rheology and colloid chemistry the company, founded by Prof. Dr. D. Lerche in 1994, has developed the innovative STEP-Technology®, which is the technical platform for different product lines. Or measuring equipment is used for the fast, reliable and comprehensive characterization of any demixing phenomena in dispersions and the testing of bonding and adhesive strength of composite materials.
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