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Investment Casting Capabilities
With generations of experience in the cast metal and foundry industry, Kormax brings a long history of providing quality engineering materials and the expertise needed for your next project.
What is Investment Casting?
Investment casting, also known as lost wax casting or precision casting, is one of the most popular casting techniques for manufacturers. It produces precise and very intricate components with high accuracy and tight tolerances. Precision casting yields an excellent as-cast surface finish and a near-net shape, minimising secondary machining and material waste.
How Does Investment Casting Work?
Investment casting has developed into a popular process for producing products of extremely high quality and intricacy. Lost wax castings are the result of blending a liquid material with a ceramic mould and allowing it to solidify.
- Design: A wax injection mould is engineered to the precise tolerances required to produce the final component accurately.
- Injection: The mould is injected with wax to provide a base for intricate patterns to take their shape.
- Dipping: The wax mould is dipped in ceramic slurry, removed, coated in sand and allowed to dry. This process is then repeated to create the shell
- Drying: The shell is dried for 24-36 hours, before the wax is removed from the hardened shell using an autoclave.
- Heating: The mould is placed into a high-temperature oven to cure it for molten metal, which is then poured into the cavity.
- Removal: Once the metal is cool to the touch, the shell is broken away from the casting and any finishing touches are applied.
Kormax Investment Casting Foundries
Kormax partners with specialised foundries globally to deliver sand casting solutions for large, heavy, and high-volume components. Each foundry is vetted for capacity, material capability, and process reliability. By matching your requirements to the most suitable foundry, we ensure the right fit for demanding industrial applications while reducing supply risk.
Facility 1
Capacity:
Approx. 18,000 MT annual casting capacity
Single-piece weight range: 25 kg to 6,000 kg
Multi-site operation with 400+ employees
Specialisations:
High-integrity alloy and stainless steel castings
Carbon steel, alloy steel, duplex, and nickel-based alloys
Medium to large cast components
Raw and fully machined castings
Proven capability in critical applications
Relevant certifications:
ISO 9001
TUV Nord
Ideal for:
Oil and gas, energy, and heavy industry
Marine and offshore applications
Power generation and mining
Critical infrastructure and OEM equipment
Facility 2
Capacity:
Approx. 6,000 MT annual casting capacity
Single-piece weight range: 30 kg to 850 kg
Specialisations:
Alloy, carbon, and manganese steel castings
Valve, pump, and general engineering components
In-house metal and sand testing laboratories
Non-destructive testing (NDT) capability
Engineering support for custom casting development
Relevant certifications:
ISO 9001
Ideal for:
Valve and pump components
General industrial applications
OEM machinery and equipment
Quality-controlled casting projects
Kormax aligns your casting requirements with the right foundry partner, managing sourcing, production, and delivery end-to-end. This approach reduces variability and ensures reliable, high-quality outcomes.
Investment Casting Advantages
Investment castings offer a number of advantages for consumers. In addition to outstanding precision and intricacy, lost wax castings boast a range of benefits for the consumer wanting a repeatable, cost-effective solution for their project.
Alloys Available
The process of creating an investment casting can be carried out using a range of metals, depending on the nature of the desired product. As a leading investment casting foundry, Kormax has experience using various metals to create a vast collection of precision-cast products.
| Metals | Related Market |
| Stainless Steels | Martensitic, Austenitic, Duplex Marine, Pump, Valve bodies, Hydraulic components |
| Carbon Steel & Low Alloy Steel | Couplings, Crankshafts, Fasteners, Bolts, Shafts, Rods, Pins |
| Bronzes | Bearings, Gears, Sliding Components, Pump Impellers, Valve Bodies, Architecture |
What We Investment Cast, and Who For
These are the components we cast most often, the alloys we cast them in, and the industries and machine shops we supply them to. Investment casting covers our finest detail and tightest tolerances, in near-net shapes that need little or no secondary machining. If your part isn’t here, it’s likely still in range — send us the drawing.
Pumps, Valves & Fluid Power
Casings, impellers, wear plates, back covers, valve bodies and manifold blocks for pump and valve OEMs and hydraulic equipment builders. Cast in ductile iron, carbon steel to ASTM A216 WCB, CF8M and CF3M stainless, and nickel-aluminum bronze — machined, pressure-tested and finished to your drawing.
Water & Wastewater Equipment
We cast for the OEMs who build municipal and industrial water equipment: pump volutes and impellers, valve and hydrant bodies, screen and aeration frames, gearbox and drive housings. Corrosion-resistant stainless and bronze for wetted parts, ductile iron for housings and covers.
Oil, Gas & Power Generation
Surface and balance-of-plant castings: valve and pump bodies, compressor and turbine housings, heat exchanger components and pressure-containing parts. Carbon steel to ASTM A216 WCB, low-alloy grades for elevated temperature, and duplex and super-duplex stainless for sour and produced-water service.
Machine Shops & Industrial OEMs
Contract machine shops and industrial equipment builders use Kormax as the foundry behind their machining capacity — rail, material handling, compressor, gearbox and general industrial components. Supplied as raw castings for you to finish, or fully machined to print. Prototype through production quantities.
Marine & Workboat
Seawater pump and valve components, rudder and stern gear parts, and deck equipment housings. CF8M — the cast equivalent of 316 stainless — plus duplex and super-duplex grades, where seawater corrosion and cavitation set the specification rather than load.
Medical & Laboratory Capital Equipment
Frames and gantries for imaging systems, surgical table bases and columns, sterilizer and autoclave components, and centrifuge housings. Cast and machined under ISO 9001 — capital equipment only; we do not supply implants or devices requiring ISO 13485.