Added value for product and process

Quality that speaks for itself. Stable production processes are of great importance for a production designed for efficiency. In order to analyze possible sources of defects before they occur, we rely on both extensive in-process testing and 100% inline testing with in-house developed testing equipment integrated into the process. In addition, modern quality assurance procedures are available with various selection test stations and measuring equipment.

The QA laboratory in detail

2D Messmikroskopie Kunststoffverarbeitung Oberhofer Kunststofftechnik

Measuring microscope Digital Keyence VHX-900F:

  • Interchangeable lenses for different magnifications
  • Stepless light control
  • Ring light illuminator
  • Creation of surface 3D images
  • Perform digital measurements
  • Adjustable head
  • Magnification 50x

Analog microscope Hommel Hercules stereo zoom microscope SZM1:

  • Optical surveys
  • Binocular prism head with 45° inclined view, 360° rotatable
  • Field of view D=28 mm...5 mm
  • Binocular tube reflected/transmitted light Magnification.
  • 7-45x Ocular tube with dioptric compensation
  • Fast inspection
  • Max. Object height 75 mm
  • Tripod 26x20x6 cm with column D=30 mm and fine drive on both sides
  • Good poor visibility
  • Magnification
  • Light source

3D Messmikroskopie Kunststoffverarbeitung Oberhofer Kunststofftechnik
Optical measuring methods

Measuring and profile projector Vision Engineering Dynascope Quadra-Check 2000:

  • XY table with digital evaluation
  • Fast measurements
  • Measurement capabilities: X=150mm, y=150mm
  • Transmitted light

Digital measuring projector Keyence IM-6225:

  • Complete article measurement in 3 seconds
  • User independent measuring accuracy
  • Repeatability: 0.1 μm
  • Illumination: Transmitted light and telecentric transmitted light illumination (green LED)
  • Illumination: Multiple angle illumination with four segments (electric, white LED) Flat angle illumination (directional, electric, green LED)
  • Process reliability through automatic evaluation of all specific parameters (CPk, 6σ, upper and lower limits, etc.)
  • Display resolution: 0.1 μm
  • More accurate measurement results since measurements can be made in the shade
  • Simple and fast measurements since measurements are performed according to a set program
  • Traceable and evaluable measurement results
  • Accompanying production

Optical high-speed micrometer Keyence TM-040:

  • Can measure at up to 16 points simultaneously
  • High-speed measurements (100% inline measurement possible)
  • Measurement of moving parts without distortion
  • Measures in shadow image
  • Smallest detectable object 0.3mm
  • Measurement accuracy of 2 μm

Fully automatic camera system Keyence CV-X 400:

  • 2 megapixel camera
  • Ring light with 8 different colors (tunable according to part color for precise results)
  • Geometry recognition
  • Alignments to freely selectable part features
  • Counting, color detection, edge defect detection, missing part detection, etc.
  • Sorting into good and bad parts
Differenzdruckprüfungen Kunststoffverarbeitung Oberhofer Kunststofftechnik
Pressure tests

Differential pressure gauge ATEQ F620:

  • Differential pressure measurement
  • Leakage measurement (ΔP): 50 Pa, 500 Pa or 5000 Pa.
  • Mechanical regulator up to 20 bar pressure
  • PC parameterizable (via USB
  • Manual calibration on the front panel with calibrated leak.
  • Data storage on internal memory or USB stick
  • Dynamic pressure measurement
  • Burst test

Water bath test:

  • Testing for gas leakage
  • Own test chambers
Temperaturtests Kunststoffverarbeitung Oberhofer Kunststofftechnik
Temperature tests

Safety drying oven BINDER FDL 115:

  • Temperature range: room temperature plus 10 °C to 300 °C
  • APT.line™ preheating chamber technology
  • Controller with time segment and real-time programming
  • 2 chrome-plated slide-in grids
  • Audible and visual alarms and automatic heater shut off
  • Selectable temperature limiter class 2 (DIN 12880) with visual alarm

Heated water bath GT-XUK-02:

  • Stainless steel tank
  • Volume: 20 L
  • Automatic temperature regulation
  • Overheating protection
  • Temperature range: 40 - 100°C

Drying and heating oven BINDER FD 115:

  • Temperature range: room temperature plus 10 °C to 300 °C
  • Up to 30% more energy-saving than commercially available units
  • High temperature accuracy
  • Circulating air
  • Controller with LCD display
  • Electromechanical control of the exhaust air flap
  • 2 chrome-plated slide-in grids
  • Stackable
  • Integrated temperature selector limiter class 2 (DIN 12880) with visual alarm