Utranazz Ultradrive electric retrofit: fuel and noise gains for concrete mixer fleets
Reviewed by Joe Ashwell
First reported on The Construction Index
30 Second Briefing
Utranazz has launched Ultradrive, an electric retrofit that powers concrete mixer drums with the truck engine switched off, cutting on-site energy use by up to 70% and reducing noise and emissions. The lightweight, integrated package replaces the conventional upper-structure drive, is compatible with most existing chassis, and is intended for quick installation across current fleets. In a two‑month trial on a 31,000kg GVW truck with an 8m³ drum, Ultradrive enabled 270 engine‑off hours out of 818 total, delivering a 30% fuel saving.
Technical Brief
- Ultradrive fully replaces the conventional mechanical upper-structure drive on concrete truck mixers.
- System is configured as a lightweight, highly integrated retrofit module for existing mixer fleets.
- Compatible with most standard mixer truck chassis, avoiding bespoke truck procurement or major structural modification.
- Operation switches to Ultradrive only once the truck is stationary on site with engine shut down.
- Trial truck specification: 31,000 kg gross vehicle weight, 19,170 kg payload, 8 m³ mixer drum.
- Over two months the trial unit logged 818 operating hours, of which 270 were engine-off.
Our Take
With Utranazz already using aggressive price cuts on Sermac truck-mounted pumps to fend off Chinese-owned rivals, pairing that strategy with an in-house Ultradrive retrofit that claims up to 30% fuel savings could help lock in UK fleet customers on lifecycle cost rather than headline capex alone.
The United Kingdom has relatively tight urban air-quality and noise constraints on construction sites, so an engine-off mixer drum system that can run for hundreds of hours without the truck idling is likely to appeal to contractors working under Section 61 and similar local authority controls.
Within our 807-piece Infrastructure corpus, there are comparatively few Product-tagged items that quantify energy consumption reductions as high as the 70% claimed here, which signals that retrofits to existing fleets may now be competing directly with full electric truck replacements on sustainability metrics.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
