Custom engineering for mining and industrial components built from drawings or samples

R.K.D Engineering turns worn, missing, or hard-to-source parts into working components that fit the job and the machine. From one-off custom engineering pieces to repeat production runs, we manufacture, machine, weld, and fabricate in-house for mining and industrial applications across Gauteng and beyond.

Custom engineering is often the fastest way to keep critical plant running when the original part is obsolete, damaged, or simply unavailable. At R.K.D Engineering in Benoni, we manufacture components to engineering drawings or from a physical sample, which means you can replace or improve the part without waiting on an imported lead time. Our workshop handles machining, turning, milling, gear cutting, welding, fabrication, and gearbox-related work under one roof, so the finished component is built with the full job in mind. That practical approach is why mining, manufacturing, and industrial clients rely on us for custom machine parts, replacement engineering components, and difficult-to-make mechanical pieces.

What you get

• Built From Real Parts — If you have a worn sample, we can measure it, recreate it, and manufacture a usable replacement that matches the original function.
• In-House Machining And Fabrication — Turning, milling, welding, gear cutting, and fabrication happen in the same workshop, which keeps the work aligned from start to finish.
• Made For Industrial Duty — We focus on components that must survive demanding mining and plant conditions, not light-duty workshop projects.
• Supports One-Offs And Repeat Work — Whether you need a single replacement machine part or a batch of custom engineering components, we can produce it to the required specification.

How it works

1. You send a drawing, sample, photo, or worn component so we can assess the dimensions, material, and working function of the part.
2. Our workshop reviews the manufacturing method needed, including machining, welding, fabrication, or gear cutting, and confirms the most practical way to produce it.
3. We manufacture the component in-house and check the critical measurements during production to keep the part aligned with the original application.
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Frequently asked questions

Q: Can you make custom engineering parts from a sample?
A: Yes, we can manufacture components from a physical sample when no drawing is available. This is especially useful for replacement machine parts and older equipment where original records are missing.
Q: What types of custom engineering work do you handle?
A: We produce custom machine components, replacement engineering components, custom gears, and parts that require machining, welding, or fabrication. We also support gearbox-related work when the component forms part of a mining or industrial drive system.
Q: Do you work from engineering drawings?
A: Yes, we can manufacture to supplied engineering drawings and specifications. That helps ensure the finished component matches the required dimensions and fits into the existing assembly.
Q: Who uses your custom engineering services?