Who We are
Built on Manufacturing Experience. Focused on Engineering Partnerships.
DIAMEX is a New Zealand-based industrial filtration supplier supporting engineering companies, equipment manufacturers and industrial service providers across Australia and New Zealand.
We specialise in custom filter bags and filter cages, combining practical technical support with dependable manufacturing to help our customers deliver reliable filtration projects.
Experience Behind the Brand
Behind DIAMEX is nearly two decades of experience in industrial filtration manufacturing and international supply, including long-term supply relationships with customers in overseas.
DIAMEX was created to bring that experience closer to engineering companies across Australia and New Zealand through responsive communication, dependable manufacturing and long-term supply partnerships.
Precision Begins with Diameter
In industrial filtration, precision starts long before production begins. It starts with the correct diameter.
The name DIAMEX is inspired by diameter (Ø)—one of the most fundamental dimensions in filter bag and filter cage design. Every filter cage begins with a defined diameter, and every filter bag must be manufactured to match it precisely.
For us, diameter represents more than a measurement. It reflects precision, consistency and engineering discipline—the principles behind every product we supply and every partnership we build.
We work behind the scenes to support our customers
— not compete with them for end-user projects.
Working with DIAMEX
Common questions engineering companies may have before starting a new supply relationship.
Is DIAMEX a new company, and who is behind it?
DIAMEX is a new New Zealand-based company built on 18 years of hands-on experience in industrial filtration, spanning product specifications, manufacturing coordination, quality control and international customer support.
That experience shapes how we review requirements, communicate with customers and manage production.
Why was DIAMEX established in New Zealand?
DIAMEX was established to support engineering companies across Australia and New Zealand with responsive regional communication and direct access to established manufacturing capabilities in China.
Our aim is to make it easier for customers in this region to work with an experienced and dependable industrial filtration supply partner.
Is DIAMEX a manufacturer or a sourcing company?
DIAMEX is not a general sourcing agent.
We are a specialised industrial filtration supplier working with established manufacturing facilities and long-term production partners in China. DIAMEX remains closely involved in specification review, production coordination, quality control and delivery.
Will our drawings and customer information remain confidential?
Yes. Customer drawings, specifications, pricing information and end-user details are treated as confidential and used only to support the relevant enquiry or order.
We can also work under a non-disclosure agreement when required.
Will DIAMEX compete with us for end-user projects?
No. Our focus is supporting engineering companies, equipment manufacturers and industrial service providers.
We do not provide baghouse installation, maintenance or on-site service contracting, and we do not approach our customers’ end users to compete for their projects.
Can we contact DIAMEX before every detail is confirmed?
Yes. You do not need a complete specification before contacting us.
Send us the drawings, samples or operating information currently available, and we can help identify the remaining details required for a practical quotation or manufacturing review.
Start with What You Have
You do not need a complete specification to start a conversation. Send us the drawings, photos, samples or operating information currently available, and we will help identify the remaining details needed for a practical review.
Your project information will be treated confidentially, and our role is to support your engineering business—not compete with it.