We deliver precision CNC machining and gear manufacturing services in Australia, supported by over 160 years of combined experience across R&I (established 1948), Hardman Bros (1953) and Marks 4WD (1979).
Operating across more than 7,500 m² of floor space within three facilities on a five-acre site, our team utilises over 100 machines dedicated to high-precision machining, gear cutting, and advanced inspection.
This scale and capability enable us to support complex CNC machining projects, from prototype development through to full production.
Our advanced CNC machining capability supports the manufacture of precision components, fine pitch gears and complex geometries for demanding applications.
- CNC gear cutting
- CNC gear grinding (up to Ø800 mm × 600 mm width)
- Gear cutting from Ø2.0 mm to Ø160 mm (Hardman Bros up to Ø1500 mm)
- CNC lathes, including sub-spindles, Y-axis, Swiss-style gang tooling and robotic loading
- CNC milling, including 5-axis simultaneous (pallet loading) and 3- and 4-axis machining (including 3 m bed capacity)
- Hermle C42U (installed June 2022) with 17 pallets and capacity for 570 tools for continuous operation
- CNC vertical lathe (up to Ø1200 mm) with C-axis milling
- CNC cylindrical and surface grinding
- Precision honing from Ø3 mm to Ø150 mm
- CAD/CAM capability using SolidWorks and Mastercam
- Horizontal and vertical broaching, including internal keyway slotting up to 800 mm long
This combination of CNC machining services allows R&I to produce high-tolerance components with excellent repeatability and consistency.
Quality assurance is integrated throughout our CNC machining and gear manufacturing processes, supported by a dedicated Quality Inspector and access to two specialised inspection rooms, including a temperature-controlled environment.
Our inspection and metrology capability includes:
- CMM (Brown & Sharpe 1500 × 900 × 800 mm) with Renishaw PH20 head and probes
- Vision inspection systems including MicroVu, optical comparators and gear inspection equipment
- Hardness testing and surface measurement equipment (Mitutoyo and Accretech)
- Extensive range of precision metrology instruments
This ensures all CNC machined components meet strict dimensional tolerances and performance requirements across critical applications.
R&I Instrument & Gear Co provides a comprehensive range of gear cutting, machining and precision grinding services to support complex component manufacture.
Gear cutting and machining
- Gear cutting, shaping and milling
- Universal hobbing of spur and helical gears
- Gear shaping
- Worm milling
- Bevel and mitre gear cutting
- Thread cutting and rack cutting
- Timing belt pulley manufacturing
Gear grinding and finishing
- Gear grinding for spur and helical gears
- Cylindrical grinding
- Surface grinding
- Tool and cutter grinding
CNC grinding capability
- CNC cylindrical grinding
- CNC surface grinding
R&I Instrument & Gear Co offers advanced CNC machining services supported by a diverse range of equipment, enabling the production of complex, high-precision components across a wide range of sizes and materials.
Turning and milling
- CNC lathes, including multi-axis turning capability
- CNC machining centres
- Horizontal and vertical milling
- 5-axis simultaneous machining
Specialist CNC processes
- CNC wire cutting
- EDM (Electrical Discharge Machining)
Grinding capability
- CNC cylindrical grinding
- CNC gear grinding
Design and programming
- CAD capability using SolidWorks
R&I Instrument & Gear Co provides a range of general engineering services to support precision component manufacture, secondary operations and finishing processes.
Machining and fabrication
- Turning
- Universal milling
- Horizontal milling
- Vertical milling
Specialist processes
- Broaching
- Slotting
Finishing and surface processes
- Grinding
- Honing
R&I Instrument & Gear Co operates under a certified quality management system aligned with ISO 9001:2015 and AS9100D (CERT-AU1645-QCQ-QCM), ensuring consistent control across all manufacturing and inspection processes.
Quality systems and certification
- ISO 9001:2015 certified quality management system
- AS9100D certification (CERT-AU1645-QCQ-QCM)
Inspection and measurement capability
- Coordinate Measuring Machine (CMM) – Brown & Sharpe
- Vision inspection systems – MicroVu
- Optical comparators
- Master gear testing
Material and surface testing
- Surface testing equipment (Mitutoyo and Accretech)
- Hardness testing
Metrology capability
- Extensive range of precision metrology equipment
