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2-wheel MGB's with coloured lids

About Us

Injection moulding machinery

Our Story

Trident Plastics is the largest custom moulder in SA offering a full suite of services from concept development, product design, prototyping, mould making and product manufacture to a diverse range of clients.

Plastic products have been made at the St Clair plant since the mid-1970s, but the formation of Trident Plastics in 1995 has allowed our services to expand from Toolmaker to Manufacturer and co-locate all services to the one site.

We configure our services to meet our customer’s specific requirements. Trident Plastics can offer exceptional flexibility in the products we can design and manufacture including value-added services such as non-plastic component pre-assembly.

Major clients include Climate Air Conditioning, HSV and Tier 1 supplier to GMH.

Our production equipment includes plastic injection moulding, gas injection, co-moulding and plastic welding via 28 machines from 20 to 6,500 tonnes. We also have 2 paint booths providing the full range of value-added painting requirements.

The St Clair site covers 30,000m2 consisting of 16,000m2 of undercover factory, warehouse and offices with nearly 100 staff.

As toolmakers, Trident can assist with concepts from design feasibility, CAD Drawings, tool design, product trials through to manufacture and distribution of the product within Australia and around the world.

Trident maintains the following quality and environmental accreditation:

• Quality ISO 9001 Certified System
• Environment ISO 14001 Certified System

Our vision is to develop new products and markets through innovation, strategic partnerships and collaboration. Eliminate wasteful practices and develop cost-effective processes with continuous improvement.

Aerial view of Trident Plastics, St Clair, South Australia

Our Certifications

Quality ISO 9001 SAI Global Certified System
Australian Standard AS 4123.1 SMK40411 SAI Global
Environment ISO 14001 SAI Global Certified System

Call us

(08) 8444 6200 | Monday – Friday



589 Torrens Rd, St Clair SA 5011