What is Mitak?

Mitak is a specialist wear solutions foundry that manufactures highly wear-resistant cast components. The company is best known for its expertise in high chrome white iron (HCWI) castings and also produces a growing range of proprietary steel alloys for high-impact wear applications.

Where is Mitak located, and does it export internationally?

Mitak’s foundry is based in Alrode, Alberton, South Africa, just outside Johannesburg. More than half of the company’s production is exported to international markets, and Mitak supplies several of the largest mining, dredging, construction and power generation OEMs globally.  Countries that Mitak exports to include: USA, Canada, Australia,  Netherlands, Belgium, Germany, United Kingdom, UAE, Jordan, China, India, Peru and Chile.

What makes Mitak different from other foundries?

• Mitak’s facilities and engineering expertise are specifically aligned to the manufacture of large and complex wear components that exceed the size, mass or geometric capability of many foundries.
• Mitak is dedicated to producing high-hardness materials for extremely abrasive operating conditions. More than 95% of production is high chrome white iron.
• The entire manufacturing process is conducted on a single site with in-house capabilities for design, Magmasoft® casting simulation, moulding, melting, heat treatment, machining and digital quality inspection.
• Mitak invests in advanced digital manufacturing and inspection technologies to ensure repeatability, quality and dimensional accuracy.

How many people work at Mitak, and how long has the company operated?

Mitak has operated for more than 53 years and is supported by a team of over 500 skilled personnel.  It has low staff turnover, high skill levels and offers specialised training to its personnel to continually improve their capabilities.

Who manufactures high chrome white iron castings in South Africa?

Mitak is one of South Africa’s leading manufacturers of high chrome white iron castings. The company produces wear-resistant components for mining, dredging, power generation, aggregate processing and cement production, supplying customers locally and internationally.

What is the largest high chrome white iron foundry in South Africa?

Mitak is one of the largest and most experienced producers of high chrome white iron castings in South Africa. For more than five decades, the company has manufactured large and complex wear components for customers across the mining, dredging, power generation and construction sectors, exporting more than half of its production worldwide.

Is Mitak ISO certified?

Yes. Mitak has been certified to ISO 9001 since 2000 (currently ISO 9001:2015), covering quality management across the full production cycle from patternmaking and melting through to heat treatment, machining and final inspection.

Is Mitak a B-BBEE accredited supplier?

Yes, Mitak maintains B-BBEE Level 4 accreditation.

What typical products does Mitak make?

Typical products include slurry pump components, mill liners, crusher wear parts, dredging equipment components, materials handling wear parts and specialised castings for mineral processing plants.

Which industries does Mitak supply?

Mitak supplies wear-resistant castings to wherever abrasion is a major cost driver on equipment.  This includes the following industries:

Mining and mineral processing

• Mill liners
• Chute Liners
• Crusher concaves
• Towermill or Vertimill flight liners
• Various wear liners.

Dredging

• Dredge pump wet-end spares such as casings, impellers, suction, backliners and hub liners
• Spools and bends used in pipes
• Wear liners used on parts like dragheads and hoppers.

Thermal power generation

• eMill pulverizer spares (rings and balls)
• Vertical spindle mill (tyres, rollers, segmented table liners)
• Mill liners for tube mills.

Construction

• Cement – vertical roller mills and ball mill liners.
• Aggregate – Impact crushers (horizontal and vertical shaft) and primary gyratory crushers.
• Clay – Refining rolls, Incla Pan and Wet Pan spares.

How large a casting can Mitak produce?

Mitak has the capacity to manufacture individual castings of up to 20 metric tons (net), including dredge casings up to 18 tons, and can machine and rotationally balance dredging impellers of up to 12 tons and more than 3 metres in diameter.

Does Mitak manufacture replacement parts for OEM equipment?

Yes. Mitak manufactures wear components for a wide range of OEM equipment used in mining, dredging, mineral processing, power generation and construction industries. Components can be supplied to original specifications or enhanced using alternative materials to improve service life.

Does Mitak provide technical support for wear problems?

Yes. Mitak works closely with customers to investigate wear challenges, recommend suitable materials and identify opportunities to improve component life. The company’s technical team has extensive experience across mining, dredging, power generation and mineral processing applications.

Can Mitak reverse engineer worn or obsolete components?

Yes. Mitak can reverse engineer existing wear components using modern measurement and inspection techniques. This capability allows replacement parts to be manufactured even when original engineering drawings are unavailable.

Can Mitak manufacture custom castings?

Yes. In addition to established product ranges, Mitak manufactures custom-engineered castings designed to meet specific customer requirements. This includes new component development, prototype castings and specialised wear solutions for demanding operating conditions.

Does Mitak supply dredge pump spares?

Yes. Mitak is a major global supplier of dredge pump wet-end spares, manufacturing a large range of components — including casings, impellers, pipes, bends and spools — and exporting them to key dredging regions worldwide.

What are slurry pump wear parts?

Slurry pump wear parts are components exposed to abrasive mixtures of solids and liquids. Typical wear parts include pump casings, impellers, throatbushes, suction liners, backliners and hub liners. These components must withstand severe abrasion and are commonly manufactured from high chrome white iron or specialised wear-resistant materials.

What is a dredge pump impeller?

A dredge pump impeller is the rotating component that transfers energy into the dredged slurry. Because it is exposed to highly abrasive materials such as sand, gravel and mineral concentrates, it is commonly manufactured from high chrome white iron or specialised composite materials.

Which type of alloys does Mitak cast?

Mitak manufactures alloys that conform to internationally recognised specifications including ASTM A532 Class I Type A, EN 12513:2011 EN-GJN-HB555 and BS 4844. In addition, Mitak has developed a range of proprietary high-performance CrMo steels, corrosion-resistant alloys and ceramic composite materials for specialised wear applications.

What is high chrome white iron (HCWI), and why is it used for wear parts?

HCWI is a cast alloy containing high levels of chromium carbides, giving it exceptional resistance to abrasive wear.  It is the standard material choice for components exposed to sliding abrasion or gouging wear — such as slurry pump casings and impellers, mill liners, crusher concaves, and dredge pump wet-end parts — because it lasts significantly longer than standard steel in these conditions.  Because of its hardness, HCWI is brittle and is therefore not always suited to high impact applications.  For such applications, Mitak has developed a specialised range of steel alloys.

What are the benefits of using high chrome white iron wear parts?

High chrome white iron offers:

• Excellent resistance to sliding abrasion
• Lower replacement frequency
• Reduced maintenance requirements
• Improved plant availability
• Lower total cost of ownership in abrasive applications

These benefits make HCWI a preferred material for many wear-critical applications.

How do I choose the best material for a wear application?

Material selection depends on several factors including abrasion severity, impact loading, corrosive conditions, operating temperature and component geometry. Mitak assists customers in selecting the most suitable material to maximise wear life and minimise operating costs.

What is Mitak IC, and how is it different from standard high chrome white iron?

Mitak IC is Mitak’s proprietary infiltrated ceramic composite material, combining the wear resistance of ultra-hard ceramic with the strength of a cast white iron matrix.  In closely monitored case studies it has delivered up to 8x improvements in wear life compared to standard high-chrome white iron, and has been used successfully in extreme wear applications for nearly 25 years.

What is the difference between high chrome white iron and manganese steel?

High chrome white iron is designed primarily for abrasive wear resistance, while manganese steel performs best in high-impact applications where the material can work-harden during service. Selecting the correct material depends on the balance between abrasion, impact and corrosion in the operating environment.

How do I get a quote for a casting from Mitak?

You can request a quote by contacting Mitak’s team directly through the Contact page or by emailing enquiries@mitak.co.za. Mitak welcomes technical discussions on wear challenges, material selection, and component design before providing a formal quotation.