In what is seen as a boost to South Africa’s engineering capacity and quality, a new-generation three-axis computer numerical control (CNC) machining unit is being employed in the country.

Featuring linear rails for greater accuracy, the machine is said to be the first of its kind in Africa and represents a strategic contribution in support of local original equipment manufacturers (OEMs) and State-owned enterprises.

The technology enables wireless probing for measuring and set-up and uses computer-aided design drawings to machine components to high levels of precision.

The scale of the new Rottler machine allows it to work on engines up to 20 cylinders in size. The three-axis capacity facilitates the standard machining processes for engine block remanufacture and also enables salvage repairs. The new unit joins Metric Automotive Engineering’s two larger three-axis machines already in operation.

The machines are dedicated mainly to the rail sector, giving the company additional capacity for other work.

The company believes that the unit contributes to the continuous quality improvement of local remanufacturing capacity and expertise. It states that as a function of process repeatability and machining accuracy, the quality of output is being constantly raised to the benefit of local customers.

In addition, the company states that its investment in the CNC unit creates increased capacity to conduct large engine remanufacturing, which in turn could improve affordability, economic growth, and job creation as well as conserve foreign exchange.

Rottler equipment is not used for general engineering purposes but is specifically designed for high-precision machining of engine blocks, which aims to allow the quality of remanufactured engines to comply with the OEM’s specifications and standards.

The focus of the company’s remanufacturing technology is on large engines used in sectors such as rail, earthmoving, mining, power generation and marine.