Precision Machining

Complete engineering service is provided ”Business to Business” and “Business to Consumer”.
With 45 years + experience in general engineering C-Mac can provide a solution to all your engineering requirements.
From vintage car repairs through to complex tooling for production lines.

With a wide range of machines and general equipment, our staff responds to requirements with flexibility, efficiency and on time deliveries giving you the customer what you require.

The video above demonstrates a tapered square thread being cut on a lathe. This thread is used on drilling rigs to extend drill rods for takiing core samples.

Engineering Capabilities

Equipment

Computerised Vertical Machining Centre (Hitachi)

Travel: x = 560mm, y = 410mm z = 410mm.
20 Tool changes

Computerised Turning Lathes (Hitachi)

Up to 620mm dia. x 1100mm between centres
110mm dia. spindle bore
With special tooling:
Max.OD Turning 910mm dia. x 250mm long

Vertical bandsaw (Pehaka) – 780mm throat x 480mm thickness
Automatic Saw (Kasto) – 250mm capacity
Mas Radial Arm Drilling – 55mm dia. Drilling capacity x 1.5metres travel
OTC Hydraulic Press – 55tonne x 600mm stroke
Universal & Turret Mills
Centre lathes
Tool & Cutter grinders
Drill presses
Tap removal
Allied pieces of equipment.
Extensive range of measuring equipment and gauges.

C-Mac can also provide:

Water Jet, Laser, Wire, and Plasma cutting.
Five (5) axis Machining and Tooling Services.

OKUMA Vertical Machining Centre

This new machine at C-Mac is on top of its class.
Excellent cost performance for customers.
Impressive thermal stability.
Nimble machine that delivers speed and high accuracy.
Environmentally friendly.

C-Mac now has larger capacity computerised machining:

Axis travel (X/ Y/ Z) 1.050mm / 560mm / 460mm
Max. load capacity 900kg
High speed machining at 12,000 rpm
32 tools and through spindle coolant

OKUMA CNC Live Tooling Lathe

Multi-function lathe that is anything but basic.
Increased functionality and flexibility in a single setup for turnY/mill and drilling of jobs for customers.

Max. work length – 1060mm
Max. Turning Diameter – 300mm
Live Tooling – 12 Stations

Materials
C-Mac works with the following materials:

Incolloys, stainless steel, copper brass and bronze, alloy steels, aluminum, castings and forgings;
Plastics, felt and synthetic materials including urethane and rubber;
High tensile and hardened steels;

Range of steels held in stock.

Gearcutting Capabilities

Processes

Keyways and Splines
Slotting
Gear hobbing & shaping
Spurs Gears, Helical Gears and Worm Wheels
Internal and External Splines
Broaching
Tooth Rounding

Equipment

Slotting Machines

300 mm max. Face Width x 1,800 mm Outside Diameter.

Gear Shaping

Internal gears – 400 mm inside diameter maximum.
External gears – 600 mm outside diameter maximum.
Face width – 130mm

Gear Hobbing

Diameter 650 mm x 300 mm face width.

Gearcutting Range

METRIC 0.8 to 10 Module
IMPERIAL 60 DP to 1.1/4 DP

Additional Services

Heat Treatment – Nitride, Case Harden and Flame Hardening.
Gear Grinding

Materials

Special steels, castings, bronze, composite fibre and engineered plastics.

Fix customer gearing Problems

Gallery

Maintenance Support

C-Mac solves all your maintenance support problems with a unique solution.

C-Mac provides a Fitter & Machinist Tradesman with a complete manufacturing and design facility at his call, as an immediate resource.

Case Study.

A processing plant had part-time maintenance staff retiring. C-Mac offered to provide a single Fitter & Machinist on an “On-Call” basis.
That single Fitter has the full resources of C-Mac to immediately support him:

Machine workshop with advanced equipment and 10 tradesmen – Fitter Machinists, toolmaker.
Gear cutting workshop;
Sheet metal Fabrication workshop with 14 staff – boilermakers, fitter welders, sheet metal workers;
Project Engineer (specializing in materials handling & Lean Manufacturing)
Design Engineer and Draftsman;
Administration support staff.

Basically customer has a full Engineering Department on call to repair, prevent and solve all their engineering needs. Management no longer has to worry about having an engineering department in their business structure.

Alternatively:

1. Request a tradesman once per month to visit your facility and fix up all those annoying AH&S issues you have identified.
If the project is too big or complex for a single tradesman, know that he has “On-call” immediately, a fully equipped and staffed design, engineering and fabrication facility.

2. Have you implemented Lean Manufacturing and having trouble finding time and know how to do those production improvements, and need designed proposals and good investment returns? Our Project Engineer is very experienced in materials handling and is trained in lean techniques.

Contact C-Mac to arrange an appointment to discuss and tailor a maintenance solution for your business.

Gear Grinding

Gears are the most important machine elements in construction of transmissions, equipment and machinery. The requirements place on gears in terms of power transmission or running smoothness continues to rise steadily. Grinding is therefore one of the most important methods for fulfilling these high quality demands.

Gear grinding is a finishing process to obtain a predetermined quality gear. Gear grinding is done to meet the exact requirements of form, dimension, and surface texture. Gear grinding gives a very high degree of dimensional accuracy.

Gear Grinding Advantages

Reduces vibrations and noise at high speeds
Increased root and flank load carrying capacity with reduced gear box dimensions
Precision gears are capable of carrying more load while reducing transient loads.
Higher the level of precision, the longer a gear system will last.
Ultimately lowers operational costs by reducing input power requirements

Gear Testing

Lead and Involute Gear Testing

Quality of gears and analysis of gear tooth is achieved by using a universal gear tester. Spur, helical, internal gears and worm wheels can be tested with extreme precision

. Gear Tester

C-Mac can now offer the service of testing

Pitch Error
Lead Error
Run out

Problems we have solved for customers Read Testimonials

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*[Owner]* An industrial laundry system service company needed repairs and redesign done to their tooling. C-Mac made changes to the tooling to make access and ease of use to decrease service down times.

*[Mechanical Design Engineer]* An automotive transmission design customer needed help with designing an automatic transmission gear prototype. We suggested and engineered a more cost effective and practical way for the mass production stage.

*[Service Manager]* An industrial fan service company had a failure of a major shopping centre air conditioning fan/ blower. C-Mac repaired the unit within a 24hr turn around for minimum downtime.

*[RAAF - Warrant Officer]* Airfield support staff required a portable sandbagging frame and requested a design, prototype and trials at no cost. There was nothing suitable on the market i.e. made in Australia. "Sandbagging Frames":materials-handling/1-bagging-equipment#silt-bagging-frame are now on the national procurement data base and some probably overseas at different war zones.

*[Owner/Manager]* A major food manufacturer specializing in tomato sauce had a filling machine breakdown. The machine was brought to C-Mac and repaired in 24hrs for minimum downtime of the production line costing $5,000 per hour.

*[Nursery Manager]* At an exhibition saw our self tracking nursery trailers and indicated he had a costly issue transporting large (heavy) pots containing advanced trees. Existing method was a bobcat. C-Mac designed and quoted for the manufacture of a Self Tracking “Low Loader”. His comment on the first day of using "Low Loader trailer":nursery-equipment/7-trailers/#low-loader-self-tracking-trailer “Can now move 100 litre pots with trees, 150 metres in 1 hr and not get a sore back”.

*[Maintenance Engineer]* An industrial hydraulic fitting manufacturer had problems with gear and shaft breakages with their machinery. They also had problems repairing and maintaining. C-Mac offered to repair and maintain their machinery on-site instead of having to permanently employ fitters.

*[Nursery Owner]* Needed a specific Potting & Mixing machine. for his yuccas nursery, but the problem was it was no longer manufactured. From his description and specifications our engineers designed and modelled in 3D software his requirements. "Potting Machine":nursery-equipment/3-potting-machines/ was manufactured and fully tested with potting media in our workshop, video was then sent to customer who was very pleased with the results. Machine disassembled and freighted interstate and installed.

*[Purchasing Officer]* A mining design and machining company needed help with machining components urgently as they were too busy to keep up with the demand. C-Mac machined the components so the deadline could be met.

*[General Manager]* Customer had to submit a proposal and compete against other countries for the manufacturing facility. C-Mac submitted drawings to show there was space in existing plant to install the new process and to comply with all Australian OH&S Standards. Working together with customer to submit proposal to the Head Office overseas WON the contract. Project was a success meeting 6month lead time and budget.