Machine & tooling design
Drilling rigs, custom machinery, tooling and lifting solutions, from concept design through fabrication and install.
Chartered engineering
Engineering for drilling, mining and industry.
Design, assessment and certification for machinery, equipment and structures, from concept through to installation and sign-off.
- BE (Hons) Honours degree-qualified engineers
- CMEngNZ Chartered Member, Engineering New Zealand
- CPEng Chartered Professional Engineer
- Design to install Same team from first drawing to sign-off
What we do
Design, assessment and certification across mechanical, structural and industrial work, led by a Chartered Professional Engineer.
Structural & access design
Structural steel platforms, walkways, access systems and overhead gantries, designed, built and installed.
Lift point certification
Proof load testing and inspection of lift points, with certification, reporting and up-to-date register management.
3D laser scanning
Accurate scans of existing plant and equipment, so new designs fit first time. Reverse engineering for hard-to-source or expensive replacement parts.
Design & drawings
Everything you need to get it built.
- Design development
- 3D CAD modelling
- Technical drawings and documentation
- Build packs for fabrication
- CPEng design analysis
Assessment & certification
Engineering assessment and certification from design through to completion.
- Engineering assessment
- Site inspections
- CPEng construction monitoring
- Inspection and testing
- CPEng certification
- Return-to-service certification
Not sure where your job fits?
If it's mechanical, structural or industrial, we can most likely help. Tell us what you're dealing with and we'll say straight up if we're the right fit.
Our work
Waikato · 2025
Arapuni Dam drilling platform
Modular steel drilling platform for the base of the dam, designed to the NZ seismic standard.
Client: Alton Drilling, Mercury
West Coast · 2023
High-pressure dewatering headworks
Designed for 100 bar. Broke into flooded old workings at 53 bar without incident. Safe control and dewatering.
Client: Alton Drilling
About ONYX
Engineering for the job that doesn't have a standard solution.
Tight sites, harsh conditions, safety-critical lifting, or equipment built for one specific job. That's where we do our best work. Our designs are practical and compliant, realistic to fabricate and install, not just correct on paper.
ONYX Consultants is led by Russell Keenan, a Chartered Professional Engineer with hands-on experience designing, building and commissioning custom equipment for exploration drilling, mining and industry.
Based in Waihi, we work with drilling contractors, mining and industrial operators, fabricators and project teams, in New Zealand and overseas.
Russell Keenan
Director, Chartered Mechanical Engineer
BE (Hons) · CMEngNZ · CPEng
University of Waikato
Jose Vaquero
Mechanical Engineer
BE (Hons)
University of Auckland
Got a job that needs an engineer?
Call, email or send the details through. We'll come back to you quickly.
- Phone
- 027 938 7570
- admin@onyxcon.co.nz
- Location
- Waihi, New Zealand