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GCT PRODUCT RANGE

We are proud to announce the launch of our 2nd generation CFI™ range of stainless steel oil-water separators. Available in various flow rates.

WHAT’S NEW?

FLOOR DRAINS GREASE TRAPS SAMPLE POINTS RODDING EYE COVERS GRATING GRAB RAILS SLUDGE TRAPS OIL-WATER SEPARATORS SLOT CHANNELS BOX CHANNELS

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All gct fabricators products are branded

Contenders vs. Pretenders

All GCT’s products are branded. Our branding serves as a promise of quality, reliability, customer satisfaction and compliance. Every product is backed by our company's reputation and commitment to innovation and excellence.

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Copyright © 2026 GCT Fabricators. All Rights Reserved.

Welcome to GCT Fabricators

Proudly South African stainless steel fabricators specialising in the manufacturing of Floor Drains, Box Channels, Slot Channels, Grease Traps, Oil-Water Separators, Sludge Traps, Inlet Sumps, Sample Points, Rodding Eye Covers, Grab Rails and other stainless steel products.

GCT has taken South Africa by storm and become a rising star in the stainless steel drainage industry, with our innovative products, superior quality and outstanding service, the GCT brand is quickly becoming the first choice for many engineers, architects and contractors throughout Africa.

Our story

GCT Fabricators is a family business founded in 2016 by three individuals with both plumbing and engineering backgrounds, the company offers ample experience in fluid mechanics and metal fabrication. Prior to the company’s inception, GCT’s board of directors spent two years and countless funds on research and development in order to offer drainage products that are manufactured to international standards but at prices suitable for the South African market. Since 2016 GCT has provided professional drainage solutions to some of the world’s most iconic companies. With humble beginnings and only a handful of product offerings available in 2016, GCT now manufacture over 150 products for the food & beverage, oil & petroleum and medical industries. All GCT products are designed and manufactured in South Africa.


gct fabricators where fluid mechanics and fabrication merge gct fabricators tig welding stainless steel gct fabricators spare parts for floor drains and grease traps

Spare yourself the trouble

Choosing products with readily available spare parts is vital because it ensures minimized downtime, cost-effective maintenance, and extended product life-span. Purchasing a product with good parts support is an investment.

GCT is an Original Equipment Manufacturer (OEM) with strong spare parts support. Our replacement components are guaranteed to fit perfectly and function as intended.

gct fabricators uses reputable stainless steel suppliers

From the mill to manufacturing

At GCT we only procure stainless steel sheets and sections from reputable local stockist's who supply material that is produced to recognised international standards like ASTM: A240/A240M and A480/A480M  & EN: 10028-7, 10088-2, and 10088-4.

All material used in GCT’s manufacturing process is mill certified and is supplied with full Mill Test Reports (MTR’s) or Mill Test Certificates (MTC’s).

Our reputation with our suppliers is equally as strong as our reputation with our customers.


gct fabricators gratings and covers are being load tested gct fabricators pickling and passivating stainless steel

Take a load off, we’ve got you covered

GCT gratings and covers are load tested to SANS: 51253/ EN: 1253. Rigorous testing ensures they are fit for purpose within a building environment and can safely handle the specified physical loads without damage or failure.

You can request a load test report from GCT, we provide comprehensive reports based on their testing and evaluations to help ensure the correct product is chosen for the specific application.

Caught in a pickle

Pickling/ passivating is by far the most important chemical surface treatment of stainless steel often ignored by substandard manufacturers in an effort to reduce costs. Unfortunately this leads to reduced corrosion resistance, resulting in rust, pitting, and ultimately premature component failure.

Unpickled stainless steel welds typically exhibit a brown or black discolouration known as "heat tint,".

GCT has one of the largest pickle/ passivation installations in South Africa where all products are carefully immersed in an acid bath following standards set out in ASTM: A380/A380M and EN: 2516.

gct fabricators products are sans compliant

Compliance, compliance and compliance

Simply being labelled "stainless steel" does not automatically make a product compliant. At GCT we have seen our competitors deliberately reduce the regulatory compliance of their products to cut costs and increase profit margins.

We like to say, bad designers hide behind aesthetics; good designers defend function. Some manufacturers in South Africa prioritise visual flair over utility, they often mask poor usability or compliance with their over-the top aesthetics.

At GCT “function first” is our design philosophy prioritising utility, practicality, performance and compliance over purely aesthetic or decorative elements.

Every GCT product is manufactured to their relevant SANS standard.




collapsed floor drain

Penny wise and pound foolish

Cheaper products may seem appealing at first but the hidden costs of downtime, emergency repairs, and loss of productivity make them a poor investment.

A leaking grease trap or a collapsed floor drain can cause business operations to come to a halt. A poorly designed product is just an expensive paperweight if it fails to solve the problem it was built for..

At GCT quality is our priority, partner with us to build a more resilient, efficient, and profitable operation.

gct fabricators non-destructive testing (NDT) on floor drains

What is NDT?

The primary form of Non-destructive Testing (NDT) done by GCT is Dye Penetrant Testing (DPT) , Dye Penetrant Inspection (DPI), or Liquid Pentrant Testing (LPT). A dye penetrant test on stainless steel is a method used to detect casting, forging and welding surface defects such as hairline cracks, surface porosity and leaks in new products by applying a visible dye that seeps into flaws and is later revealed by a developer.

When manufacturing stainless steel drainage systems for the food and beverage sector, quality control is of paramount importance.

scrap metal stainless steel gct fabricators factory

Did you know stainless steel is 100% recyclable?

Today, where environmental issues are so important in saving and preserving our world, stainless steel can emerge as an excellent recyclable material. For decades stainless steel can be continuously recycled without loss of quality.

A study done in 2019 concluded that, on average 95% of stainless steels are recycled once they reach their end of life, with 70% used to make new stainless steels and 25% used to make new carbon or special steels.

Unlike HDPE or other plastics, if stainless steel is not recycled and manages to find its way to a landfill or disposal site, it will have no detrimental effect to the soil or groundwater.

Front view of gct fabricators factory in boksburg south africa

Where and how?

All GCT products are manufactured at our factory in Johannesburg, South Africa.

Some of our manufacturing processes include, GTAW, GMAW, & ERW welding, CNC bending & plasma cutting, sheet metal drilling, rolling, shearing & stamping, stainless steel pickling/ passivating, polishing and grinding.

All our products are manufactured by skilled artisans under careful supervision, after which each product is inspected for welding, assembly and surface defects.

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