Deburring for CNC Machined Parts
Remove burrs from CNC parts — including internal edges and cross-holes
A magnetic polishing machine removes burrs from CNC machined parts by driving stainless steel pins across the part in a water and brightener bath. Because the pins are small and work at low pressure, they reach cross-drilled holes, internal threads, slots and blind pockets that a wheel or brush cannot, deburring an entire batch in roughly 5 to 15 minutes without altering part dimensions or rounding critical edges.
Manual deburring is usually the slowest and least repeatable step in a CNC shop: one operator per bench, inconsistent edges, and rejections that only show up at assembly or inspection. Magnetic deburring converts that into a machine cycle that treats every part in the batch identically.
Precinova assembles and tests these machines in Saha, Ambala (Haryana), and runs sample trials on your own components before you buy so cycle time and pin size are proven, not estimated.
Deburring machines by shop size
| Model | Best for | Batch capacity | Bucket |
|---|---|---|---|
| PMPM-00035 | Small precision parts, prototype and low-volume batches | 8–10 kg | Φ350 mm |
| PMPM-00050 | General CNC job shops with mixed part sizes | See specifications | See specifications |
| PMPM-09050 | Higher-volume batch deburring | See specifications | See specifications |
| PMPM-TT4000 | Continuous through-type flow for line integration | See specifications | See specifications |
Where machined burrs actually sit
The burrs that cost the most time are the ones a wheel cannot reach. Magnetic pins reach them because they are loose media, not a fixed tool:
- Cross-drilled hole intersections and tapping burrs inside threads
- Milled slot corners, keyways and pocket floors
- Thin-wall and small-feature parts that distort under hand pressure
- Turned parts with parting-off burrs and thread run-outs
- Deep or blind features where brushes lose contact
Why dimensions stay intact
The pins carry very little force individually. They remove the burr — a weak, protruding feature — long before they measurably affect a supported surface. That is what makes the process safe on machined tolerances, threads and sealing faces where an abrasive belt or a vibratory bowl with hard media would be a risk.
The same cycle also cleans coolant residue and fine chips out of holes and brightens the surface, so parts often go straight from the machine to inspection, plating or anodising.
Fitting it into a CNC shop's flow
A typical setup places the machine near the wash bay: an operator loads a bin of parts from a completed CNC batch, sets the timer and speed, and returns at the end of the cycle. One machine usually absorbs the deburring load of several CNC machines, which is where the labour saving comes from.
For higher volumes or line integration, a through-type machine keeps parts flowing continuously instead of in discrete batches.
Choosing a size
Size the machine by the weight of parts you need to finish per shift, not by the largest single part. Batch weight and bucket diameter set throughput; motor rating and variable speed control set how aggressively you can run the cycle. Send us your part drawing, material, daily quantity and the burrs you are fighting, and we will recommend a model and quote it landed in India with GST.
Get a quote & spec sheet
Send your part details and we'll reply within 24 hours with a quote, specifications and the recommended model.
Frequently asked questions
Does magnetic deburring change part dimensions?
No. The pins remove burrs and clean surfaces at low pressure, so machined dimensions, threads and sealing faces are preserved. This is why the process is used on precision CNC components.
How long is a deburring cycle?
Typically 5 to 15 minutes for a full batch, depending on material, burr size and the finish required. The exact time is set during a sample trial on your own parts.
Can it deburr inside cross-drilled holes and threads?
Yes — that is the main reason shops buy it. The pins are small enough to enter holes, threads and slots that buffing wheels and brushes cannot reach.
Which materials can be deburred?
Stainless steel, aluminium, brass, copper, titanium and other non-ferrous and ferrous machined parts. Pin size and brightener are selected per material.
Do you supply and service these machines across India?
Yes. Precinova Systems Private Limited invoices in India with GST, delivers nationwide and handles installation, commissioning and operator training from our Ambala, Haryana facility.
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