timas@tekfen.com.tr +90 212 357 00 60

  • tr
  • england

Tekfen Manufacturing Factory



Our company has a heavy manufacturing facility located at Derince-Kocaeli on a total area of 48.500 m², where 19.250 m² is the closed shop. Our factory is adjacent to the International Port of Derince (Safi Port), as well as railway and TEM highway


The manufacturing processes of our Factory are:
- Cutting (gas, mechanical)
- Cold Forming (Rolling, Pressing, Flanging)
- Machining
- Drilling
- Fit-up
- Assembly
- Welding (SMAW, SAW, ESW, GMAW, GTAW, FCAW)
- Postweld Heat Treatment / Normalazing
- Surface Preparation (Sandblasting and Gridblasting)
- Painting




Following nondestructive examination methods are applied:

- Radiographic Examination
- Ultrasonic Examination (Conventional and TOFD&PA)
- Liquid Penetrant Examination
- Magnetic Particle Examination
- Impact Test
- Hardness Test
- Positive Material Identification
- Visual Examination
- Pressure Test
- Air Bubble (Leakage) Test