Group 3

Application

MUNK’s KTL rectifier solutions are specially developed for electro-dip coating (KTL, ATL, ETE) and meet the highest requirements for efficiency, process reliability and reproducibility. They are used in modern coating systems where precise control of voltage, current and coating thickness is crucial.

Thanks to modular DC power supplies, the systems are suitable both for large-scale industrial coating processes and for flexible applications, for example in pilot or laboratory systems. The combination of high energy efficiency, low residual ripple and digital process integration enables consistently high coating quality.

 

Product Description

The KTL rectifier units are based on modern, modular switch-mode power supply technology (IGBT/MOSFET) and offer efficiencies of up to 95%. For optimum adaptation to different power requirements, the systems are available in three power groups:

Group 1: up to 500 A
Group 2: up to 750 A
Group 3: up to 2,000 A

By connecting multiple modules in parallel (up to 500 V / 5,000 A), the output can be scaled flexibly and expanded at any time.

A key feature is the consistently low residual ripple in the process-relevant control range, which ensures optimum coating results. In combination with the KTL 1200 coating thickness control, the system enables precise control of voltage, current and current density – including automatic and manual operation as well as multi-stage programs.

 

Interface

  • ProfiNET
  • Profibus (optional)
  • Ethernet etc.

Technical data

Mains voltage: 3 x 380 – 480 V, 50 – 60 Hz
DC voltage: up to 500 V
DC: up to 2,000 A
Residual ripple: < 2%
Energy efficiency: > 95%
Energy efficiency: > 95%
Dimensions: 3600/800/2000 mm (+ 200 mm base)

FAQ

How does voltage regulation affect the KTL process?

Voltage regulation plays a crucial role in the KTL process. It ensures that the coating is applied evenly and reproducibly. Stable voltage prevents over- or under-coating, improves paint adhesion, and reduces rejects. Modern rectifiers from MUNK GmbH enable precise voltage control, ensuring consistently high quality of the KTL coating while efficiently utilizing energy.
KTL stands for Cathodic Dip Painting, and MUNK rectifiers are used for this process.

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a solution tailored to your application?

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