CASE STUDY: UTRANAZZ SUPPLIES BESPOKE DEMOUNTABLE CONCRETE MIXERS FOR THE CLYDE WIND FARM

Case Study: Utranazz Supplies Bespoke Demountable Concrete Mixers for the Clyde Wind Farm

Overview

Utranazz, the UK’s leading specialist in concrete equipment, partnered with civil engineering contractor C A Blackwell (Contracts) Ltd to deliver four custom-engineered 6m³ demountable concrete mixers for the Clyde Wind Farm Project—Europe’s largest consented onshore wind farm.

With 152 turbines and an overall generating capacity of 350MW, the project required an efficient, adaptable concrete production solution that could operate in challenging terrain while supporting the batching and discharge of 21,000 cubic metres of concrete on the southern section of the site.

Challenge

Blackwell needed a concrete mixing system capable of:

• Operating on steep, uneven terrain common to large-scale wind farm sites
• Integrating seamlessly with existing machinery to minimise costs
• Supporting high-volume concrete output within tight project timelines
• Allowing easy switching between mixer bodies and standard dump bodies after project completion

Their fleet already included Bell 30D Mark V Articulated Dump Trucks, offering a potential cost-saving platform—if a compatible mixer solution could be developed.

Solution: Bespoke 6m³ Demountable Mixer Units

Utranazz engineered fully self-contained 6m³ mixer modules designed specifically to mount onto Blackwell’s existing Bell articulated dump trucks.

Key Design Features

• Demountable Frame System
  The mixers can be quickly installed or removed, enabling Blackwell to reinstate the trucks’ original skip bodies once the project ends.
• Modified Mixing & Discharge Height
  Due to the naturally high chassis of the Bell trucks, Utranazz redesigned the mixer’s discharge system to bring controls and access points to an operator-friendly height.
• Safe Access Platform
  A custom platform and ladder assembly was constructed to provide secure access for cleaning, inspection, and routine maintenance.
• Complete Self-Containment
  Every unit was engineered as an independent mixing system, eliminating the need for major truck modifications and ensuring operational reliability onsite.

The custom manufacturing process took eight weeks from design through to final delivery.

Outcome

By repurposing their existing articulated dump truck fleet, Blackwell achieved:

• Significant cost savings
  No need to acquire specialized concrete trucks for a single project.
• Operational flexibility
  Quick demounting after project completion maximizes long-term equipment use.
• Improved efficiency
  The custom mixers enabled safe, rapid batching and discharge across challenging terrain.

This collaboration demonstrates Utranazz’s capability to deliver highly customised concrete equipment solutions that support unique engineering and environmental requirements.

“We were delighted to be able to work with Blackwell on this unusual project. We specialise in providing custom-built concrete equipment to meet the most demanding and exceptional requirements from our customers.”
—Tony Evans, Managing Director, Utranazz

For More Information

Suzy Wiseman
Marketing Manager, Utranazz Ltd
Email: [email protected]
Tel: 01280 820770