Engineering & EPCM
Define it properly.
Build it once.
Mexx designs, builds, tests, commissions and services automation for mining, defence, construction and manufacturing — delivered in stages, with a decision point at the end of each one.
Why scope first
A clear scope is the cheapest part of any project
Most automation projects that go wrong do so before anything is built: success was never defined, the requirements kept moving, and decisions weren’t written down. A short, paid scoping study fixes that before you commit capital.
Success, defined
Throughput, quality, safety and budget agreed and written down before design starts.
Options compared
Layouts tested on paper and in simulation, so you choose with real numbers.
A price for the board
An indicative cost and programme, and a clear go or no-go decision.
How a project runs
The phases your team already knows
Every phase ends at a gate. You review what we’ve delivered and decide whether to go on — nothing moves forward on assumptions.
| Phase | What Mexx does | What you get at the gate |
|---|---|---|
| Scoping study | Understand the problem, the site and what success means. Compare options. | Written requirements, concept layout, rough cost, go/no-go |
| Feasibility (PFS / FS) | Develop the preferred option and test throughput in a digital twin. Identify risks. | Selected design, proven cycle times, firmer cost estimate, risk register |
| Design (FEED and detailed) | Mechanical, electrical, controls and safety design, with design reviews alongside your team. | Drawings, functional specification, safety documentation, price to build |
| Build and test (FAT) | Manufacture and assemble at our Arundel facility, then test before it leaves. | Factory acceptance test you can witness, inspection records |
| Install and commission (SAT) | Install and commission on site, including within shutdown windows. | Site acceptance test, operator training, as-built drawings, manuals |
| Service and support | Service contracts, after-hours on-call and remote login. | Uptime, spares and upgrades for the life of the machine |
Built around how your industry works
Mining, defence, construction and manufacturing
Mining & resources
Study phases, stage gates and shutdown windows. We deliver automation packages as the owner’s contractor, or as a specialist package under your EPCM contractor. Our project leadership has delivered EPCM projects across mining and minerals processing in Australia, Asia and Latin America.
Defence
Stage-gate delivery that fits PRINCE2-style governance, with documented decisions at every gate and a management system certified to ISO 9001 and AS9100.
Construction & infrastructure
Clear scope, programme and interfaces with other trades. Examples include an automated concrete testing laboratory and a composite crossarm line for power infrastructure.
Manufacturing
Production lines, robotic cells and special-purpose machines, designed around your product, your output and your floor.
What you can expect
Documentation and controls that stand up to review
- ISO 9001, ISO 45001 and AS9100 certified management system
- Risk assessments and machinery safety design to AS/NZS 4024 and ISO standards, as the project requires
- Hazard studies (HAZOP) — we take part in yours, or lead them if you prefer
- Inspection and test plans, factory and site acceptance testing
- Document control and a vendor document register (VDRL)
- Reliability, availability, maintainability and buildability reviews
- As-built drawings, manuals, spares lists and training at handover
Service & support
We stay on after commissioning
Every machine we build is backed by the engineers who designed it. We run service contracts, log in remotely to find faults fast, and provide after-hours on-call support for equipment across Australia and New Zealand. We also service automation built by others.
Machines designed and built for
PACT GROUP
Talk to an engineer
Start with a scoping conversation
Tell us what you’re trying to achieve. We’ll tell you honestly whether a scoping study is worth it, and what it would cost.