Lost Wax Casting

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May 20, 2026

On August 27, 2021

Main Products: High precision castings, cast augers, Auto parts, motorcycle accessories, Boiler parts,tube support, tube shields, heat treatment tray/basket, Grate bars, pump body...
Application: Biomass/waste to energy, boilers, steel roll machine, Ball mill, Grate Kiln, Sinter/pellet car, Mineral process, Cone Crush, Cement industry, Auto parts...
Material Range: Heat resistant steel, Alloy steel, Manganese steel, Stainless steel, Ductile iron, gray iron, high chrome iron, high temperature alloy and etc.

Plasma Transfer Arc Welding (PTAW) technology is an evolutionary development of the more widely used Gas Shielded Tungsten Arc Welding (GSAW) process.

PTAW uses a constrictor nose to utilise and concentrate very high levels of energy and uses various gas control methods to limit the arc, making it very effective for specific welding situations.

Detailed wax patterns are produced from a master tool and pattern assemblies are dipped several times in a special slurry and different grades of ceramic to create a mould for the casting. Using inert ceramic shells reduces the possibility of hydrogen defects, which can be a problem with many High Alloy steels and Nickel based alloys.

We have over 15 years of expertise in precision lost wax casting, our Quality Management Systems ensure an outstanding level of accuracy at every stage, producing quality-assured pieces which meet all your requirements for strength, integrity and composition.

Key Benefits:

High and Consistent Dimensional Accuracy
Exceptional Surface Finish
Reduced Casting Weight – Wall Sections and Machining Allowances Minimised
Consistent Casting Quality
Precise Details Such as Holes, Lettering, Threads, Serrations Can Be Cast
Cast Alloy Flexibility from the Same Tool

For Serial Production:

100 Gms to 60 Kgs Net Weight per Piece
Good for High Volume Production
Die (Tooling) Is Required for Repetitive Production
Vtmt Has Developed over 2,000 Different Parts as Investment Castings
Current Production Capacity Is over 1200 Tpa

Process Attributes:

Wax Patterns Are Formed in Metal Dies
This Process Leads to a High Degree of Accuracy
There Is No Long-Term Wear of the Dies
A Significant Reduction in End-Product Cost Due to Weight and Machining Savings