Surface Finishing using Dry Electro-polishing Machines

Kemet now offer a non-abrasive, dry electro-polishing surface finishing system, capable of substantially reducing surface roughness whilst maintaining the geometry and tolerances of the components. Compared to the multiple steps often required with mechanical surface finishing, this new technology offers fully automated polishing to a mirror finish in one step, and is more effective than liquid electro-polishing which generally reduces surface roughness by only 50%.

Dry Electro-polishing in the Medical Sector

The Medical sector requires clinically proven processes and products which guarantee compliance with the most demanding health and safety regulations. Manufacturers must ensure that the devices meet all legislated requirements and in particular perform risk/benefit analysis to evaluate biocompatibility and toxicity of materials used.

Medical devices and components often require high quality surface finishing and a non-aggressive process is required to avoid damage. A dry electro-chemical process is perfect for such applications, offering more control than liquid electro-polishing and working efficiently at the micro and macroscopic level.

DLyte has proven the biocompatibility of the products processed with DLyte System. The study has been made according to the specifications of standard UNE-EN-ISO 10993-5:2009.

dry electro-polishing surface finishing technology

Kemet also offer Vibratory Finishing Machines for pre-processing before the Dlyte stage

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Finishing Solution for a wide range of materials

Dry Electro-polishing DLyte can achieve a high quality finishing for machined, sintered and casting parts, offering mirror finish results, the polishing action reaching every corner of the piece and processing inner cavities which cannot be accessed mechanically.

Preserving the geometry of the cast or machined component without rounding edges, Dry Electro-polishing can remove grinding patterns to deliver brilliant, mirror-like finishes with predictable costs. It offers the ability to process complex geometries without leaving micro-scratches on the surface, while maintaining component tolerances.

Solution for the most common metals and alloys in the industry, such as Cobalt Chrome, Stainless Steel, Carbon Steel, Nickel Alloys, Copper Alloys, Titanium and Nitinol

Electrolyte Media

The DLyte technology works with different electrolytes for each material and designed for different specifications.

Electrolytes Material
CoCr Group - CoCr01 CoCr alloys
CoCr Group - CoCr02 (Only for mirror finishing and complex geometries) CoCr alloys
SS Group - SS01 Stainless Steel alloys
SS Group - SS02 (Only for mirror finishing and complex geometries) Stainless Steel alloys
Ti Group - Ti01 Nitinol and Titanium alloys

electropolishing inox316L Hss13343 copper cobalt chrome

electropolishing brass titanium cobalt chrome

Electro-polishing Machines

DLyte 1 - 100 Series

New patented machines for grinding and polishing Stainless Steel, Cobalt Chrome, Nitinol and Titanium.

surface finishing electropolishing machines

Code DLyte1H/1l DLyte10H/10l DLyte1H+/100l
Capacity 75Ø mmx50mm (maximum volume centered to the axis) 120 Ø x 50 mm (maximum volume centered to the axis) 180 Ø x 80 mm (maximum volume centered to the axis)
Machine dimensions (mm) 510 x 1150 x 690 820 x 1280 x 680 950 x 1410 x 730
Support dimensions (mm) 510 x 690 x 680 820 x 680 x 680 950 x 700 x 740
Machine weight 96 kg 173.5 kg (230 V) - 193 kg (110 V) 217.5 kg (230 V)
Support weight 47 kg 87 kg 100 kg
Power 2 kW 3 kW (single phase with industrial plug) 5 kW (single phase with industrial plug)
Voltage 220-240 V 220-240 V 220-240 V
Air pressure - 4-5 bar (air connector: 8mmØ or 1/4’ BSP’)
Series Model Materials Frequency
DLyte1H, DLyte10H, DLyte100H For Stainless Steel and Cobalt Chrome LF
DLyte1HTi, DLyte10HTi, DLyte100HTi For Nitinol and Titanium HF
DLyte1H+Ti, DLyte10H+Ti, DLyte100H+Ti For Stainless Steel, Cobalt Chrome, Nitinol and Titanium LF and HF
DLyte1I, DLyte10I For Steel, SS, CoCr, Nickel and Precious Metals LF
DLyte1ITi, DLyte10ITi For Titanium HF
DLyte1I+Ti, DLyte10I+Ti For Steel, SS, CoCr, Nickel, Titanium and Precious Metals LF and HF
DLyte10ICs, DLyte100ICs For Carbon Steel LF
DLyte10I+Cs, DLyte100I+Cs For Steel, SS, CoCr, Nickel, Precious Metals and Carbon Steel LF
DLyte10I Ti+Cs, DLyte100I Ti+Cs For Titanium and Carbon Steel LF and HF
DLyte10I +Ti+Cs, DLyte100I +Ti+Cs For Steel, SS, CoCr, Nickel, Titanium, Precious Metals and Carbon Steel LF and HF

PRO Series - DLyte PRO 500

A high capacity compact surface finishing machine, the DLyte PRO 500 polishes the most common industrial metals and alloys used in industry: Cobalt Chrome, Stainless Steel, Carbon Steel, Carbides, Nickel Alloys, Aluminium Alloys, Copper Alloys, Titanium, Nitinol.

  • High performance - Three different configurations.
  • High capacity - 750 Ø x 330 mm (Maximum working area).
  • Advanced automation - IoT Software and quick fixing holders.
  • Automatic extraction and cleaning system - While components are extracted, an air flow blade removes media stuck to the surface avoiding undesirable marking of the surface and allowing re-use of the media.
  • Multiholder - One system, multiple applications.
  • Planetary rotation - with variable and independent speed and motion sensors.
  • Quick coupling - For easy plug and release of the holders.
  • Easy media handling - Container with media can be loaded and unloaded with a pallet truck.
  • Easy access - The design facilitates the access to the internal components for easy maintenance and operation.


Solution for Mass Production Electro-polishing - DLyte 10,000

The DLyte 10,000 modular machine can be fully integrated into your production line, offering high capacity and automation and continuity into existing mass production systems.

Electrolysis workstation

  • Rotational Tank + Base
  • Capacity of 1200L
  • Diameter: 1330mm / Height: 850mm
  • 6 r.p.m. clockwise & counterclockwise rotation
  • Vibration system

Machinery guard system

  • Safeguarding the work process
  • Automatic machine stop in case of door opening
  • 2006/42/CE Compliance

Robot for complex and large geometries

  • 1 piece up to 750 x 500 x 500mm
  • Maximum load: 100 Kg

Crane for mass production

  • 200 pieces up to 50 x 50 x 50mm
  • Maximum load: 1000 Kg
  • 4, 6 and 8 holders configurations according to dimensional and capacity requirements

mass production electropolishing

mass production electropolishing machine

mass production electro polishing machine

How Dry Electro-polishing Works?

Dry Electro-Polishing offers an improvement on traditional finishing systems, simplifying the polishing process of metal parts with a new patented technology, surface finishing metals by ion transportation. The components are held by positively charged clamps and immersed in constantly moving media particles in a negatively charged container. Containing an electrolyte liquid, these conductive, porous particles absorb the metal being electrically removed from the peaks of the components’ rough surface. As well as being a one stage process, Dry Electro-Polishing maintains component edge integrity and penetrates/polishes internal areas that cannot be accessed by traditional methods.

The system works efficiently at micro and macroscopic level

Before Dry Electro-polishing

before dry electropolishing

After Dry Electro-polishing

after dry electropolishing

how electropolishing works

Step 1

electropolishing stage 1

The parts are fixed on the holder

Step 2

electropolishing stage 2

The holder is introduced in the machine

Step 3

electropolishing stage 3

Select the program

Step 4

electropolishing stage 4

Average of 50-60 minutes time cycle

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