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Zero Emission Ready
One proven body across battery-electric, hydrogen, hybrid and diesel chassis. Lightweight aluminium extends range and payload where it matters most.
Zero Emission · Locally Made · Proven Reliable
OptimusTM
The public transport platform for the zero-emission era. Bolted aluminium. Any drivetrain. Built in Australia by Volgren.
Structure
Co-bolt Aluminium
Drivetrains
Diesel · Hybrid · Electric · H2
Reliable
Unparalleled Warranty
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The platform pillars
One body. Every future.
Optimus™ is engineered around the things operators can’t compromise on.
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Local Manufacturing
Designed, engineered and assembled in Australia. Local content, local jobs and a supply chain that answers your call in your time zone.
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Product Reliability
The Co-bolt structure is corrosion resistant and fully repairable — backed by a 15-year body warranty for confidence across the contract life.
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Local Service & Support
A national footprint of five service facilities keeps fleets moving — warranty support, repairs, refurbishment and parts, close to your depot.
Australian Made, from start to finish
A true local product
Engineered, Manufactured and Assembled right here.
The structure behind Optimus™
Co-bolt aluminium body system
Bolted, not welded. Extruded aluminium profiles joined with precision mechanical fasteners — a light, corrosion-resistant structure that is faster to repair and built to outlast the contract.
Co-bolt system · bolted aluminium structure
- /01Lightweight
Lightest in class — lower tare weight means more passengers and more range on zero-emission chassis.
- /02Corrosion resistant
Aluminium doesn’t rust — structural integrity protected for the full life of the vehicle.
- /03Repairable
Bolted sections are replaced, not cut and re-welded. Less downtime, lower whole-of-life cost.
- /04Recyclable
Aluminium and core materials can be fully melted and reformed — supporting fleet sustainability targets.
Co-bolt® — Aluminium Gussets
Aluminium Body Construction73%Recyclable
Material recovery
73% completely recyclable — around 3.9 tonnes of aluminium and core materials fully melted and reformed — plus 3% reusable as-is. Over three quarters of every bus re-enters the circular economy.
Flexibility · Customisation · Choice
One body, Multiple platforms
Optimus™ is a chassis-agnostic platform: choose the chassis, technology and configuration that suits your network, range, infrastructure and lifecycle strategy — and get the same proven body, passenger environment and service-ready design every time.
Optimus™ electric articulated · 18m
SIX ZEBs
Chassis platforms to choose from
FOUR
Technologies: Diesel · Hybrid · Battery Electric · Hydrogen
11.7–12.5m
Rigid lengths / 18m articulated
39–47
Seats · multiple layouts & door configurations
VARIANTS
Rigid · Articulated · Double Deck
One platform architecture across every body style, tailored to route and capacity needs.
CUSTOMISATION
Configured to your network
Cabin layouts balance seating, standing capacity and accessibility — specified per contract.
COMMONALITY
Parts commonality
Consistent architecture simplifies maintenance and supports fleet-wide efficiency, whatever the chassis.
Wherever you operate
National footprint
Optimus™ is supported around the country — manufacturing, service and parts close to your depot.
- /MManufacturing
Melbourne · Perth · Brisbane — purpose-built facilities.
- /SAfter sales
Melbourne · Perth · Brisbane · Sydney · Adelaide.
Download the brochure
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