OTEC Machines | Hygrade Casting

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OTEC Machines

Engineered in Germany, OTEC machines deliver flawless, mirror-like finishes with unmatched speed and consistency. They automate tedious bench labour and protect delicate jewellery geometries across every batch.

OTEC Machines

OTEC Machines

Disc Finishing Machines

OTEC CF 3x18

OTEC ECO-MAXI

OTEC MAG-30

Electro Polishing Machines

OTEC EF-Flex

OTEC EF-One

OTEC EF-Smart S

OTEC EF-Smart S

Japanese-Made Quality

We work closely with the specialists at Alfa Mirage Japan to offer a carefully selected range of premium emery papers and jewellery workshop accessories.

Their emery range uses genuine Kovax abrasive papers, developed to provide a smooth, consistent sanding surface and reliable results across repeated finishing applications.

These products are suitable for general jewellery benchwork and are also compatible with the validated OTEC post-processing workflow, making them an ideal choice for workshops seeking consistent finishing results from initial preparation through to final surface refinement.

Japanese-Made Quality

Who We Are

Our team of skilled professionals brings together expertise in CAD/CAM, 3D printing, precious metal casting and advanced post-processing services. When you contact us, you deal directly with people that can answer your questions quick-smart.

We are a team that consists of metallurgists, chemists, production workers, technicians and managers, ensuring fast, practical and informed solutions without unnecessary delays or back-and-forth.

Disc Finishing Machines

Disc Finishing Machines

Processing is carried out in an open drum (the process container) with a base plate in the form of turntable or disc. The workpieces, together with a suitable polishing or grinding granulate, are set in motion by the rotation of the disc to create a toroidal stream inside the stationary drum.

The contact between the workpieces and the medium generates a very intense finishing effect which is up to 20 times more efficient than can be achieved with systems such as conventional vibrators.

Only we at OTEC have the relevant know-how to finish very fine workpieces (< 0.4 mm) using our zero-gap drum system. This makes these models especially suitable for the deburring, edge rounding and polishing of delicate and intrate workpieces.

OTEC CF 3x18

OTEC ECO-MAXI

OTEC MAG-30

Electro Polishing Machines

Electro Polishing Machines

Electro Finishing (EF) is a highly precise process for surface treatment of metallic workpieces using an external power source. In this electrochemical removal process, the workpiece is dipped into a specific Electro Finishing Media and anodically removed. Electro Finishing is primarily used to smooth and polish surfaces.

The process is particularly effective in processing difficult materials such as stainless steel, titanium, and other alloys. The application of Electro Finishing results in workpieces with a metallically pure surface, an unaffected basic structure, improved corrosion resistance, and a permanently shiny surface.

Electro Finishing offers numerous advantages over other surface treatment methods. It is a fast, effective, and precise method for achieving high-quality surfaces that meet the high demands of modern industry. Therefore, if you are looking for an optimal solution for processing metallic workpieces, you should definitely consider Electrofinish.

OTEC EF-Flex

OTEC EF-One

OTEC EF-Smart S

OTEC EF-Smart S

OTEC Machines

OTEC Machines

OTEC Consumables

OTEC Consumables

Authorised Australian Agent for OTEC Präzisionsfinish GmbH & Alfa Mirage JP

Security Notice

For safety and security reasons, we do not keep, hold, or store cash, loose gemstones, diamonds, or finished jewellery at our publicly listed address. This location is used exclusively for client wax drop-offs, trade consultations, administrative activities, and related business operations. All visits are strictly by appointment only. Entry will not be granted to unannounced visitors under any circumstances. The premises are protected by comprehensive security measures, including, but not limited to, monitored alarm systems and CCTV surveillance.