Rail
Mackay Rubber has been supplying the Australian Rail Industry with components for over three decades, supplying both replacement and OEM parts made to demanding specifications.
Rubber and rubber-metal bonded rail products manufacturer encompassing design, development, manufacture, durability testing and through-life support.
100% Australian owned with over 90 years of rubber experience.
RUBBER CAPABILITIES
- Process types: injection moulding, compression-transfer moulding, and extrusion.
- In-house compound development, mixing and certification of compounds.
- Assembly of rubber-metal mouldings into associated forged or cast components.
- Moulding press capacity up to 1,500 tonnes, capable of moulding parts up to 2.4m x 1.5m



CASTING CAPABILITIES
- A range of high integrity low alloy and stainless steels, manganese steels, high chrome, nickle hard, and ductile iron
- Engineering design
- Arc and induction furnaces
- Steel & Ductile Iron castings
- 7 X heat treatment ovens (max 4 x 2.5 X 2.5m)
- CNC machining centres
- Coating – paint and powder coating (fluidized bed and electrostatic)
- Magnetic particle and ultrasonic NDT testing
- In-house charpy impact testing
- 3D printing capabilities
- Welding: mig, tig and laser
- Advanced manufacturing, industry 4.0 Focused
DISCRIMINATORS
- A vertically integrated business capable of facilitating a cohesive approach to a clients needs across all our manufacturing platforms.
- Maximisation of aic due to comprehensive in-house capabilities
- Expert in rubber and metal compound development tailored to specific applications and requirements.
- Management and protection of IP (customer and Mackay).
- Technical services: a key solution provider encompassing; mathematical modelling and product development for new and problematic components.
- Our engineers work closely with customers to fully understand critical issues to achieve a workable and lasting solutions.
- Management and protection of IP (customer and Derwent).
3-Axis Suspension Testing
Rubber and rubber-metal bonded rail products manufacturer encompassing design, development, manufacture, durability testing and through-life support. CAE design capabilities across a wide range of materials. 100% Australian family owned with 89 years of rubber experience. We are the only Rail supply company in the Southern Hemisphere that can offer 3 Axis Testing of Suspension Components
Quality Approvals
We are committed to attaining the highest standards possible from concept through to final product. This no-compromise approach involves using the best materials available, combined with innovative product and process development. Our management systems ensure customers receive optimal solutions to their needs
ISO 9001:2015
ISO 14001:2015
ISO/IEC 17025:2005
(NATA approved Laboratory)
A major supplier of a diverse range of engineered rubber and bonded metal/rubber and composite products for the Rail Industry in Australia and overseas.
We also offer elastomeric rail products, which typically include rail boots, tie pads, and similar rubber extruded products for applications in the rail industry. Our elastomeric rail products are made from a wide variety of high-quality thermoplastic and elastomeric materials that are strong, flexible and lightweight, backed with excellent tensile and shear strength.






We set our standards through the following:
Our engineering design facilities have been expanded to include Kinematic Modelling and Fluid Coupled Finite Element Modelling. As such, our design abilities are at the forefront of international design
Design and manufacture of critical bogie primary and secondary suspension components as well as engine & transmission raft mounts, and various other resilient elements
We offer a complete in-house design and testing service with materials development and production mixing carried out on the one site
Our local presence in Australia allows us to be far more responsive in the local market for both initial build and ongoing provision of replacement parts in the future
A perfect blend of affordability and quality
Decades of experience in manufacturing and supplying the highest quality of rubber products
Rail Products
- Locomotive, passenger, and light rail primary and secondary suspension springs.
- Traction and reaction rod bushes and assembly.
- Sponge extrusions for dust and water sealing.
- Engine, engine raft and transmission raft resilient mountings.
- Bogie bump stops, rubber boots and ancillary rubber products.
- Traction motor bellows.
- Vibrations isolators for underbody equipment and air-conditioning systems.
- Non-rolling stock products – platform gap fillers.
The Derwent Advantage
Dealing with us has a number of advantages.
Our local presence in Australia allows us to be far more responsive in the local market for both initial build and ongoing provision of replacement parts in the future.
Our size allows us to manufacture small runs with short lead times.
We offer a complete in-house design and testing service with materials development and production mixing carried out on the one site.
Our experienced engineering staff use Unigraphics CAD and Solid Edge drafting systems and ANSYS finite element analysis to model customer requirements, reducing lead times from concept to prototype and finished product, service interval for a large train manufacturer.
Our NATA accredited physical testing laboratory conducts simulated service testing on prototypes ensuring that products not only perform the tasks for which they are designed, but meet the durability requirements of customers’ applications.
Mackay’s engineering design facilities have been expanded to include Kinematic Modelling and Fluid Coupled Finite Element Modelling. This places Mackay’s design capability at the forefront of international design.
BOGIE ELEMENTS
Passenger, locomotive and wagon bogies can contain a number of resilient elements such as bump-stops, bolster springs, spherical & plain bushes, elements for steerable bogies and shock-absorber mounts. Mackay has designed and manufactured resilient elements for many years. For a number of projects has significantly redesigned components for service life improvements.

Bogie Bump Stop

Bogie Bump Stop

Bogie Damper Mount

Bolster Bush

Spherilastic Bush

Steerable Axle Pad

Steerable Beam Bush

Steerable Beam Bush

Steerable Beam Bush

Torsion Rod Dust Seal

Torsion Rod Dust Seal

Torsion Rod Resilient Element

Traction Rod Pad

Wagon Bogie Bush
COUPLER REPLACEMENT PARTS
We maintain high standards through:
- Expanded engineering capabilities, including Kinematic and Fluid Coupled Finite Element Modelling, placing us at the forefront of international design.
- Expertise in designing and manufacturing critical bogie suspension components, engine/transmission mounts, and other resilient elements.
- Comprehensive in-house design and testing, with materials development and production on-site.
A strong local presence in Australia, ensuring quick response for both initial builds and future replacement parts. - A perfect balance of affordability and quality, backed by decades of experience in producing top-quality rubber products.

Coupler C-Springs

Coupler Support Mount
PLATFORM GAP FILLER
A major supplier of a diverse range of engineered rubber and bonded metal/rubber and composite products for the Rail Industry in Australia and overseas.
We also offer elastomeric rail products, which typically include rail boots, tie pads, and similar rubber extruded products for applications in the rail industry. Our elastomeric rail products are made from a wide variety of high-quality thermoplastic and elastomeric materials that are strong, flexible and lightweight, backed with excellent tensile and shear strength.

Gap Filler

Gap Filler
PASSENGER PRIMARY SUSPENSION ELEMENTS
Mackay has developed replacement primary suspension elements for an Australian suburban operator. The Primary suspension elements are of two types. Elastomeric Conical and Elastomeric Conical with integral fluid damping.
Mackay’s engineering design facilities have been expanded to include Kinematic modelling and Fluid Coupled Finite Element Modelling.
This expanded capability moves places Mackay’s design capability at the forefront of design in the region.
Mackay’s ability to re-engineer primary suspensions allows further development of suspension characteristics for improved ride and durability.
Mackay manufactures in low volumes with production batch sizes as low as 96 pieces (3 car set).

Combined Hydraulic & Elastomeric

Primary Suspension/ Conical Spring
LOCOMOTIVE PRIMARY SUSPENSION SPRING
Mackay has designed and manufactured both original equipment and replacement locomotive primary suspension elements.
Re-engineering has been undertaken to allow for an increase in locomotive weight during upgrade whilst maintaining unchanged fitment.
Mackay has also provided re-engineered elements to address in-service life-time issues with original equipment.

Aurizon Class 3700

Aurizon Class 3800
SECONDARY SUSPENSION ELEMENTS
Mackay has a long history in design and manufacture of locomotive secondary suspension elements. These elements have been for original equipment supply as well as re-engineered replacement parts for increased service life.

Inner Pad UGL Locomotive

Outer Pad EDI Locomotive

Outer Pad UGL Locomotive

Traction Pad UGL Locomotive
ENGINE, TRANSMISSION & RAFT MOUNTS
Engine, transmission and raft mounts can be custom designed or selected from our standard range. Mounts have been manufactured in higher temperature and higher damping compounds as well fully custom designed and manufactured to provide optimum performance not available from the standard designs.

Engine Mount – EMU

M2400## Also used for Cab mounts in locomotives

Raft Mount – EMU
