Wind power industry
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Wind power industry SOLUTIONS FOR THE PRODUCTION OF ROTOR BLADES

2 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 3 Since several decades we know the production requirements for rotor blades so that they withstand these high demands in long-term operation. One out of three rotor blades in the world is produced with a DOPAG machine. This makes DOPAG one of the world’s leading manufacturer of metering and mixing machines for rotor blades. As a member of the HILGER & KERN GROUP, DOPAG has been a reliable supplier as well as an experienced developmentand service-partner for industrial enterprises across various market segments since 1927. The...

4 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 5 One partner for all applications Efficient solutions for rotor blade production As leading manufacturer of custom build metering and mixing systems for the wind power industry, DOPAG provides the comprehensive portfolio needed for the various applications for the production of rotor blades. In general, rotor blades consist of glass- and carbon fibre reinforced plastics and reinforcement materials such as Balsa or foamed materials, that absorb total mechanical load while also optimizing weight. The production process begins with...

6 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · The production requires three main demands on automated metering and mixing systems: ▪ Precise maintenance of a consistent mixing ratio ▪ High flexibility in terms of the flow rate ▪ Minimal delay in achieving working point DOPAG provides infusion systems with flow rates of more than 60 l/min and adhesive-paste systems being able to process more than 24 l/min. Due to the high resin consumption of the infusion process and the high quality requirements of composite fibre composites components, resin degassing systems must be used....

8 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 9 Standard (Infusion-Station) Output rate 30 l/min and 60 l/min Control cabinet Automatic ratio check with weighing scales Electronically controlled valve modules ▪ Mixing Control cabinet mounted onto a completely enclosed, mobile chassishead enclosed, pumps with overpressure protection Metering mobile chassis ▪ Metering pumps with overpressure protection pump of the B-component with magnetic coupling Distance to basic metering machine up to 70 m Three-phase asynchronous motor Metering pump of the B-component with magnetic Scale...

10 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 11 Output rate 14 l/min and 24 l/min Control cabinet and 400 l buffer vessels mounted onto a mobile chassis Metering pumps with overpressure protection and LifeCycleLogger Vertically foldable crane with up to 6 m reach mounted on the chassis High pressure pump rams with level control Technical specifications Three-phase asynchronous motors with forced cooling for PC-feeding pumps Control and regulation of mixing ratio by use of high resolution volume counters Portable refilling unit that works while connected to main machine for...

12 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 13 Control cabinet and material supply mounted onto a mobile chassis Material pressure vessel with level control monitoring Metering pumps with overpressure protection Coated metering pump of the A-component with ceramic glide ring sealing Three-phase asynchronous motor Control and regulation of mixing ratio by use of high resolution volume counters Material feed detection sensor to ensure process safety Mast, boom and balancer to handle the manual mixing-gun mounted on the chassis Emergency backup of control parameters in case...

14 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 15 Control cabinet and material supply mounted onto a mobile chassis On chassis 200 kg direct feeding for A-component Material pressure vessel for B-component with level control monitoring Specially abrasive resistant coated gear pump for A-component Control and regulation of mixing ratio by use of high resolution volume counters Balancer to handle the manual mixing gun mounted on the chassis Emergency backup of control parameters in case of a power failure Flow rate * Mixing ratio 100:10 – 100:100, volumetric as per material...

16 · DOPAG · WIND POWER INDUSTRY DOPAG · WIND POWER INDUSTRY · 17 Constant process control ensures high production reliability During the production process, all key product-related technical data from the respective component is recorded on the DOPAG LifeCycleLogger 4.0 as a final step and transmitted to the machine control unit when connected to the system. This includes: size, specific volumes or pressures, test bench results regarding efficiency, and other performance data. There is no need for manual selection or input processes, which removes the potential for error. For example, once...

18 · DOPAG · WIND POWER INDUSTRY Material testing Installation of the entire system All-round start-up: We accompany you until your series production is running stably Customer-specific training For long-term stable production ▪ ▪ ▪ Preventive inspections and maintenance contracts KPI analysis Complete overhaul For short repair times ▪ ▪ ▪ ▪ High accessibility Fast execution of repairs Short-term availability of original DOPAG parts Worldwide delivery of spare parts For the same standards worldwide ▪ Inspection, maintenance and repair in the worldwide DOPAG branches, at sales partners or at...

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