About us
BE PART OF YOUR SUCCESS
TJAX, trading as Tranrek in China, is a precision manufacturing company driven by engineering excellence and continuous improvement. We specialise in CNC machining precision metal and plastic components, forging, and advanced finishing processes, serving industries including medical, automotive, semiconductor, and aerospace. Committed to lean production and customer-focused solutions, we deliver reliable, high-quality parts to clients worldwide.
30M+
Parts Made
0.05%
Defects Rate
99.8%
Timely Service
14+ Years of Experience
OUR INDUSTRIES
industries TJAX provides services to
TJAX serves critical industries such as Medical, Aerospace, and Automotive, delivering solutions that prioritise precision, reliability, and compliance with the highest industry standards.
All of our licensed professionals have been carefully selected and rigorously trained, ensuring that you receive the best experience. When you choose to work with us, know that you are consistently choosing quality and excellence.
We would not be who we are without our eco-friendly design, which is at the core of our strategy. We are constantly working to improve our offerings and expand upon our capabilities when it comes to design and production.
We have strict standards when it comes to what we produce and never compromise on quality. This is especially true when it comes to the first-rate materials we use. Our customers deserve the highest level of products on the market, and we work tirelessly to maintain those standards.
What we Do
TJAX Engineering and Precision Manufacturing services
At TJAX, we provide high-quality manufacturing solutions that support every stage of product development, from prototyping to full production. By combining advanced machinery, experienced engineering, and trusted production partners, we deliver reliable components with consistent quality, tight tolerances, and efficient lead times.
What We Do
Precision Manufacturing Service
At TJAX, we provide high-quality manufacturing solutions that support every stage of product development—from prototyping to full production. By combining advanced machinery, experienced engineering, and trusted production partners, we deliver reliable components with consistent quality, tight tolerances, and efficient lead times.
2.5K+
Satisfied Customers
WHy choose us
Frequently Asked Questions
Find clear answers to common questions about TJAX precision manufacturing capabilities, processes, and commitment to delivering reliable, high-quality components
Our main manufacturing facility is located in Suzhou (Trad as Tranrek), China, with international sales in Nanjing (Taijie) and overseas sales support in Australia.
We can trade through either China or Australia, depending on your purchasing requirements.
CNC machining offers excellent precision and repeatability. Depending on part geometry and material, TJAX can achieve tolerances as tight as ±0.01 mm.
For best practice, we recommend specifying a general tolerance standard such as ISO 2768 on your drawing. If you have critical dimensions, mark them clearly so we can focus inspection and process control on those features.
Yes. Every part goes through our quality process, including first article inspection, in-process inspection, and final QA based on internal sampling plans.
A measurement report / inspection report can be provided upon request at the time of order.
In most cases, there is no minimum order quantity (no MOQ) for TJAX CNC machining. We support everything from one-off prototypes to small and medium production runs.
MOQ may apply only when a process requires dedicated tooling, such as extrusion or die casting. Pricing is quantity-dependent because setup and programming costs are amortized across the batch. We typically provide tiered quotations for multiple quantities so you can choose the best cost option.
Our standard production lead time is typically around 4 weeks after order confirmation.
For urgent projects, we can offer quick-turn CNC machining in as fast as 24 hours when materials and capacity are available. Material lead times vary by market availability and can range from a few days to longer for special grades.
To request a quote for custom CNC machining, contact us through our website and include:
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Your CAD file: STEP, STL, DXF, or PDF
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Material and grade (if known)
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Quantity required
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Tolerances and finishing requirements
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Any critical dimensions highlighted on the drawing (recommended)
After reviewing your files, we’ll provide a detailed quotation and an estimated lead time.
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Clients feedback
What Our clients have said about US
Precise and Fast Delivery
Working with TJAX Machining on our gas detector enclosures was a game-changer. They delivered precise metal and plastic parts with tight tolerances that ensured perfect sensor alignment and reliable sealing. The finish was excellent and ready for anodising straight off the machine. Professional, fast turnaround, and great communication from start to finish. Highly recommend them for safety-critical projects.
Mark Thompson - Product Engineer
Brisbane, Australia
From Prototyping to Production
TJAX Machining turned our complex design into flawless prototypes in record time. Their attention to detail on thin walls and internal features prevented any warping, and the final batch production was consistent and high-quality. Excellent value and outstanding customer service — they even suggested small DFM improvements that saved us time and cost.
Sarah Chen - Founder & CEO
Melbourne, Australia
General Precision Work
We’ve used several CNC shops over the years, but TJAX stands out for their reliability and precision. The aluminium and plastic components they machined for our industrial equipment were dimensionally perfect with beautiful surface finishes. Their team is knowledgeable, responsive, and truly cares about getting it right the first time. We’ll definitely be back for future projects.
David Reynolds - Manufacturing Manager
Canada
Repeat Customer
TJAX Machining has become our go-to partner for all CNC work. From initial prototypes to ongoing production runs, their quality is consistently excellent and lead times are always met. The parts for our latest gas monitoring devices fit perfectly and look professional. Great team that makes collaboration easy.
Lisa Patel - Design Manager
Boston, USA
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