Testing laboratory

The HEICO group's in-house testing lab provides support in the development of new and innovative products for bolted connections. Existing products are constantly tested according to current guidelines (e.g. 25201-4, DIN EN ISO 16047), both in-house and also by independent test institutes (e.g. IMA Dresden, Fraunhofer IPA, DIBt). The test lab also offers various test options to check the use of HEICO products for customer-specific installations. By providing technical support and conducting experimental tests directly in the presence of the user, optimum safety can be ensured in individual customer applications.


  • Vibration test rig according to DIN 65151 / DIN 25201-4 / ISO 16130 (M6 – M30 / ¼“ – 1 1/8“), max. 250 kN
  • Vibration test rig according to NASM 1312-7
  • Torque/clamp force test rigs according to DIN EN ISO 16047 (M3 – M42 / #5 – 1 1/2“), max. 1.000 kN / max. 5.000 Nm
  • Testing device for clamp forces up to 5.000 kN, e.g. for HEICO-TEC® Tension Nuts
  • Salt spray test chamber according to DIN EN ISO 9227
  • Vickers hardness testers according to DIN EN ISO 6507, HV0.05 – HV10
  • Rockwell hardness tester according to DIN EN ISO 6508
  • Testing devices for measuring the loss of preload due to setting
  • Devices for the production of metallographic specimen
  • Digital microscope with 2000x magnification
  • Laboratory press of 300 kN
  • Strain gauges
  • Arc/spark metal analyser
  • Modern Software for measurement data acquisition and evaluation


  • Experimental testing of locking characteristics according to DIN 25201-4 annex B, DIN 65151 and ISO 16130
  • Evaluation of tightening torque, assembly preload, friction coefficients , etc. e.g. according to DIN EN ISO 16047
  • Proof load tests for determination of the load capacity of internal threads up to M20 e.g. according to DIN EN ISO 898-2 or DIN EN ISO 3506-2
  • Metallographic analysis
  • Material identification, determination of chemical composition
  • Application of strain gauges for the determination of forces on the component
  • Research and development
  • Quality control
  • Customer-specific tests and test reports
  • Technical customer support
  • Technical support in the dimensioning of bolts
    according to VDI 2230 part 1
  • Training and in-house seminars
  • Lectures within the framework of expert forums (e.g. VDI Knowledge Forum, DVM)

Our Proof- and Certification bodys

  • Cologne University of Applied Sciences (TH Köln)
  • IMA Dresden
  • ITS, USA
  • DIBt
  • DNV GL
  • EBA
  • State Materials Testing Institute Darmstadt (MPA)
  • University of Duisburg/Essen
  • Dr. Sommer materials technology

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