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jazyk ČZ a.s. Praha (Strakonice)
Your turbocharger specialist for commercial diesel engines         -         High Level of Efficiency         -         Own design and R&D         -         Flexible & Dynamic Solutions turbodmychadla
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Manufacturing technology

  • High percentage of our own production compared with other turbocharger manufacturers

    Castings (compressor housing, bearing housing, turbine housing) are mainly provided by ČZ foundries so we make manufacturing and logistics costs more effective.

    skříněskříně

    The technologies we use guarantee not only a high quality surface but also precise casting - so that our turbochargers can achieve the maximum efficiency.

    The latest technologies are used when machining parts, including a 5-axis Hermle milling centre for milling compressor wheels using specialized CAM software Concepts NREC.

    These technologies mean we can constantly achieve high productivity and the highest quality in our manufacturing process.


  • Schenck technology is used to balance shaft&wheels and compressor wheels

  • High percentage of CNC machining centres

  • Rotor grinding on Schaudt machines

  • All turbochargers are tested in hot or cold stands over all working revolutions

  • The KAIZEN method is used to continuously improve our manufacturing processes

Hermle
5-axis Hermle milling centre
Haimer
Heat fixing “Haimer”
Vyvažovačka
Balancing machine “Schenck”
Záběh lož. uzlů
Cartridge running-up
Teplý záběh turbodmychadel
Turbocharger hot running-up

Materials

  • Turbine housing
    - Ductile iron (GGG40), max temperature 700°C
    - SiMo 4-06, max temperature 760°C
    - SiMo 5-07, max. temperature 800°C
    - stainless steel 1.4848, max temperature 1000°C (prototype)

  • Turbine wheel
    - Inconel 713C, max temperature 800°C
    - MAR-M247, max temperature 1000°C

  • Compressor wheel

    • Casting:
      - Aluminium Alloy P354
      - Aluminium Alloy P354 HIP (Hot Isostatic Pressing)
      Max circumferential velocity 480 m/s

      Odlitek
    • Milled:
      - Aluminium Alloy 7075 - T651
      - Aluminium Alloy 2618 - T61
      Max circumferential velocity 550 m/s

      Frézované

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