Pitch systems

ATECH - your partner for customized pitch systems

ATECH is your partner for individual, tailor-made, customer-specific pitch systems and pitch products in the low voltage range for both onshore and offshore wind turbines from 200kW to 6MW.

Our pitch solutions are already used worldwide and have proven their worth for many years. Due to the optimal adaptation to the current wind speed and the torque of the drive shaft, we guarantee a highly efficient reliable solution for your wind turbines. They are designed to meet the exact customer requirements. Our ATECH pitch system guarantees a long service life and an extremely low maintenance effort

  • More than 24,000 turbines are in operation worldwide
  • Low maintenance
  • Partner of the world’s leading wind turbine manufacturers
  • Years of experience



The ATECH pitch system for low-voltage, regulates the angle of the blades of wind turbines, thus guaranteeing an optimal energy yield and safe operation of the wind turbine at all times. Each pitch system can be individually adapted to your requirements. Even in case of strong winds, extreme climatic conditions or in offshore regions – we will find an optimal solution for your application.

The ATECH pitch system consists of the following main components:

  • Pitch Inverter
  • Power Supply
  • Backup capacitator system (Low voltage Design)
  • SPS
  • Power surge protection
  • DC/DC-converter


Forward to the pitch products

ACE-X 2µ

The ACE-X inverter is suitable for driving drawbar devices, small pallet trucks, special vehicles, order pickers and driverless transport vehicles.

The firmware, which can be updated on site, can be fully adapted to the OEM specifications, or a CANopen solution can be supplied to offer extensive flexibility.

This ZAPI motor controller is equipped with CANBUS communication, flash programming and the patented ZAPI algorithm as standard and is compatible with the standard diagnostic tool from ZAPI.

Technical specifications

Motor Technology Inverter for Asynchronous Motors
Input Voltage 24V, 36/48V
Level of Performance Low
Aktiv current control generation
Brand ZAPI
Application -

Motor type

AC-induction, AC-synchronous, brushless DC motor



Environmental temperature

-40°C .... +40°C

Input voltage

24 V

36 / 48 V

max. current

165 A

140 A

max. current PW version

240 A

210 A




with aluminium plate or cooling profile


138 x 180 x 87mm

Digital inputs


Analogue inputs


Incremental encoder input


Outputs, negative controlled


Outputs, for proportional valve


LED outputs