April 2, 2018

Alpha Industrial - ELKA-ELASTIC  <<Brochure>>

Comprehensive Product Range

Elka Elastic comes in all grain sizes of the FEPA (European Federation of the Producers of Abrasives) standard, from 16 to 1000 in the following qualities

l 10 C green silicon carbide
l 10 A brown aluminium oxide
l 30 A high purity white aluminium oxide

The hardness of Elka Elastic products ranges from 30 Shore A to 80 Shore D.

The maximum permissible speed lies between 10m/sec and 50m/sec, depending on the hardness of the Elka Elastic wheel.

Our comprehensive product range can thus handle almost all grinding and polishing tasks – we meet special requirements with customized solutions.

Take advantage of our know-how and consultation services ‒ we will solve your particular challenge.

Types / Bonds

* Type E100


Open-pored, highly elastic synthetic foam 


  • Structuring: stainless steel sheets
  • Deburring: shafts, control pistons
  • Rounding: cemented carbides
  • Levelling: welded seams
  • Polishing: extruder screws, cylinders
  • Descaling: threaded spindles, piston rods

* Type E200


  • Compact, notch-resistant elastic synthetic material


  • Deburring: cemented carbides, sheet metal, gears
  • Dressing: plastic composites (skis)
  • Polishing: surgical instruments
  • Finishing: precision engineered parts, threaded spindles
  • Cleaning: rolling

* Type E400


  • Synthetic bond with hard-elastic properties


  • Deburring: cemented carbides, sheet metal, gears
  • Polishing: surgical instruments, ski edges
  • Finishing: bearings, shafts, valve elements
  • Ultrafine finishing: piston rods, cylinders, rolling elements, hard chromium
  • Structuring: Stammkörper
  • Sharpening: Circular saw blades, bandsaw blades (stellite cemented carbide)

* Type E410


  • Synthetic bond with hard, non-elastic properties


  • Abrasive grinding: tungsten, aluminium alloys, alloys up to HRC60, composites
  • Polishing: aluminium cylinders, surgical instruments
  • Finishing: precision-engineered parts, control pistons (burr formation negligible)


ELKA-ELASTIC Polishing Applications

ELKA-Elastic grinding tools are abrasive wheels bonded with elastic reaction resins, primarily from the PUR and EP product groups. 

Aluminium oxide and silicon carbide are used as abrasive grains. In specific applications, diamond grains are also used. 

As resins are highly versatile, tools with a Shore hardness of A 30 (approximately the hardness of mattress foam) to D 95 (hardness of electro casting resin) are used. This special type of bonding allows the grain to oscillate, which in turn leads to gentle contact with the material to be ground. As a result, the removal rate is low, but a technically perfect surface is generated. 

ELKA-Elastic tools are produced in all common geometries and dimensions. Currently, the smallest wheels measure Ø 22 mm and the largest Ø 1,200 mm. 

Like the dimensions, the application portfolio covers the entire range of finishing processes for all metals and alloys. 

The circumferential speed range is adapted to the hardness of the wheel and lies in a range of 10m/sec. – 50m/sec. 

ELKA-Elastic tools are designed in such a way that they may be used with all commercially available machines. Only the speed needs to be considered. 

We make a basic distinction between 2 work methods:

  • Grinding by hand or using a manual tool 
  • Use of grinding and polishing machines of all types 


 Alpha Industrial - ELKA-ELASTIC Elka Complete Catalogue

Alpha Industrial - ELKA-ELASTIC  Elka Application Flier