Wind Blade Moulds

Wind Blade Mould Systems and Solutions

Gurit has worked with many high profile clients to design, develop, and manufacture wind blade production lines and tools to aid in the blade turning and turbine assembly process with high efficiency and accuracy. Gurits offer for Moulds provides:

Plugs and Moulds

Wind Blade Mould Turning Systems (Hinges)

Mould Temperature Control Solutions

Plugs and Moulds

Whether it is new design, concept, build to print design, or prototypes, Gurit can work through all the phases of a project from design conception, design & validation, manufacturing, to delivery of the final parts with a competitive cost and time without compromise to quality.

CNC milling

Gurit’s specialised CNC engineers operate 5-axis CNC machines, build master plugs with extreme accuracy and speed. Gurit’s plugs have successfully been used to produce up to more than 25 perfect moulds. This means that all components, shear webs, spar caps and root inserts fit every time without costly adjustments or the need to use fillers.

Hydraulic equipment

Gurit equips its moulds with hydraulic turn-over, closing and clamping systems, jigs
and fixtures, and offers a choice of software controlled electric or liquid mould heating systems depending on the production process or the targeted precision.

High-standard welding

Gurit’s plug and mould surfaces are held by a very rigid steel support structure to ensure a tight, stable surface geometrical tolerance. All welding is done in-house following ISO standards, with CE certified welders and International Welding Engineers on-site, to ensure high levels of quality and safety.

Wind Blade Mould Turning Systems

Power hinges and turning systems

Gurit offers a full range of hinges with different capacities and arm sizes catered to blade mould sizes from 50 to 150 m.

The turning system can precisely close the two halves of the mould and control angular positions.

Gurit’s hinge portfolio includes arms with sizes and torque capacities ranging from 320 to 800 kNm. The latest hinge generation is modular, this enables a fast and low-cost installation, providing the ability to expand and reconfigure the system.

Hinge Portfolio

GT7
Advanced sensing enabling industry 4.0 solutions

GTT-200
Widest used hinge in moulds < 80M long

GTT-258
Hinge of choice for moulds > 80M long

SPECIFICATION		GT7	GTT200	GTT258
Voltage	in V(3ph)	380-480	380-480	380-480
Frequency	in Hz	50/60	50/60	50/60
Torque capacity per hinge	in kNm	690	550	800
Number of hinges per mould		According to customer specifications
Hinge maximum working pressure	in bar	300	320	320
Rotation time	in minutes	6	6	8
Number of jacks		According to customer specifications
Jack maximum lifting force (per jack)	in kN	136	98	98
Jack maximum pressure	in bar	220	320	320

Mould Temperature Control

Electric Resistance Heating System

The wind blade mould is normally divided up to 450 zones depending upon the blade structure design. Heating ramps of up to 2°C/min

Hydronic Heating and Cooling System

The patented liquid heating and cooling systems from Gurit are designed for further accuracy in the production cycle. Allowing for higher temperatures with a more uniform distribution, this design ensures an even cure on all parts.

Mould skin cooling system

Cool air is blown through conduits attached to the back of the mould’s composite skin. This reduces the cooling time required to turn the half shells prior to closing the blade. Also shortens the cooling time to demould the finished blade without damaging the bonding lines. This system is also offered in a dual heating – cooling configuration.

Cavity Cooling System

Gurit’s blade cavity cooling system shortens the cooling wait time to de-mould the finished blades without damaging the bonding lines. The system extracts the hot air inside the blade’s cavity and exchanges it for chilled air. The system is offered in two configurations:

1. Cavity Heating & Passive Cooling
During the cure cycles the system blows hot air into the blade cavity. During the cool cycles extracts the hot air and blows in room temperature air.

2. Cavity Heating & Active Cooling
During the cure cycles the system blows hot air into the blade cavity. During the cool cycles extracts the hot air and blows in chilled air.

FURTHER OFFERINGS FOR WIND BLADE MANUFACTURING

Engineering services

Our vast experience working with blade manufacturers, worldwide, has given us specialized insight that helps blade builders solve their specific problems.

Manufacturing automation

Gurit offers a broad range of tools to precisely assemble prefabs onto a blade shell mould.

Manufacturing Intelligence

We develop and offer complete Industry 4.0 solutions for your blade production park.

Watch the videos to learn more about our Solutions for the Wind Energy Industry

Sustainability Report

Creating a Strong Sustainability Platform

Gurit annually reports on sustainability related topics and performance indicators. The Gurit Sustainability Report has been prepared in accordance with the standards of the Global Reporting Initiative (GRI), core option.

Gurit Sustainability