Metal Polishing

Finishes From Descaled To 0.10 Ra

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Metal Polishing

Axium’s team of stainless steel polishers are trained to provide a range of finishes from bead blasting to electropolishing. Different industries require different finishes which can vary in cost, quality and in some cases delivery times. Not every enquiry requires a pharmaceutical finish with full certification and testing!

Orbital:

Welds left as laid, no post weld treatment

Manual:

Welds left as laid, pickled and brushed.

0.8Ra:

Welds removed internally and externally, polished 0.8Ra.

0.4Ra:

Welds removed internally and externally, polished to 0.4Ra (top end
pharmaceutical, high value biotechnology components).

Mirror polish:

Welds removed internally and externally, Mirror polish (top end pharmaceutical, high value biotechnology components)

SURFACE MEASUREMENTS

NOMINAL GRIT	RA MEASUREMENT		TYPICAL APPLICATIONS AND TECHNIQUES
	Micron (micrometer)	Micro-inch
80	2.5	100	Dull polish – applicable for tube, bends and tees in general food processing subject to daily cleaning in place (CIP). Normal abrasive techniques achieve this.
100	1.2	48
120	1.0	40
150	0.8	32	Satin polish – used by high end food and beverage plants, cosmetics, toiletries and with standard pharmaceutical and biotechnology applications. Easier to CIP. Sequential use of abrasives is required.
180	0.6	24
240	0.5	20
320	0.4	16	Bright polish – Top end pharmaceutical (water for injection), high value biotechnology materials, semi-conductors, solvents and pure gases. Abrasives plus electropolishing normally required.
500	0.1 - 0.2	4 - 8

All polishing materials are certified free of animal derived products (TSE Free Certification available)

Finishes to 0.10µm Ra
All polishing materials are certified free of animal derived products (TSE Free Certification available)
Bead blasting, mirror and electropolishing options

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