Karbosan ZR Flap Disc 115x22 mm P40 Grit

Karbosan ZR Flap Disc 115x22 mm Grit 40

Maximum Performance on Stainless Steel and Hard Metals

The Karbosan ZR (Zirconium) Flap Disc is a high-performance, heavy-duty abrasive product specifically designed for processing tough and hard metals such as high-alloy steels, stainless steel (INOX), hard steels, and cast iron.

With an outer diameter of 115 mm, it is perfectly compatible with the most commonly used small angle grinders. The critical feature of this disc is its use of high-quality ZR (Zirconium Oxide) abrasive grains. Zirconium is harder and more durable than Normal Corundum (NK). The Grit 40 size is one of the most aggressive grit classes, serving the purpose of rapid material removal and eliminating the deepest imperfections. Thanks to Zirconium's self-sharpening property, the disc maintains high performance throughout its lifespan.

Product Features

Feature	Detail
Product Name	Karbosan ZR Flap Disc
Form	Conical or Flat (Usually Conical T-29)
Dimensions (Diameter x Bore)	115 x 22 mm
Grit Size	Grit 40 (Most Aggressive Material Removal)
Abrasive Type	ZR (Zirconium Oxide)
Area of Use	Stainless Steel (INOX), High-Alloy Steels, Hard Castings
Compatible Machine	115 mm Angle Grinder

Application Areas and Industries

The Karbosan ZR Grit 40 Flap Disc is used in all professional sectors where high material removal power on hard and tough metals is required:

Sectors

Stainless Steel Manufacturing: Aggressive cleaning and smoothing of thick weld seams on INOX profiles and sheets.

Machine Manufacturing: Removal of weld and casting excess on high-carbon, hard tool steels, and alloyed metals.

Shipbuilding and Shipyards: Rapid cleaning of thick and long weld seams in high-strength steels.

Foundries: Removal of thick burrs and sprue residues on hard cast iron and alloy casting parts.

Heavy Industry and Steel Construction: Aggressive surface preparation and heavy deburring on high-stress steel components.

Applications

Voluminous Weld Cleaning: Especially rapid reduction of thick and stubborn weld seams on stainless or hard steels to surface level.

Hard Metal Deburring: Thanks to Zirconium's superior hardness, removing hard burrs for longer periods without performance degradation compared to NK discs.

Rough Surface Preparation: Rapidly abrading and removing deep imperfections, thick rust, and corrosion layers on hard or stainless steel surfaces.

High-Strength Steels: Consistent cutting performance on hardened or high-alloy metals where standard abrasives dull quickly.

About the Product: Zirconium (ZR) Power: Master of Hard Metals

Zirconium (ZR): New Level in Abrasive Power

Zirconium Oxide (ZR) offers superior toughness and durability compared to Normal Corundum (NK) and sometimes even Silicon Carbide (SC) abrasives. This makes ZR flap discs ideal especially for stainless steel and alloyed steels, which tend to heat up and are hard.

When a Zirconium grain dulls during abrasion, it micro-fractures, constantly creating new, sharp cutting edges. This self-sharpening mechanism allows the disc to maintain a high and aggressive material removal rate throughout its lifespan. Especially in stainless steel, the disc slowing down and increasing heat buildup due to friction can cause material burning (blue/brown discoloration). Zirconium's continuous sharpness minimizes this risk.

Grit 40 Aggressiveness: Speed and Material Removal

The Grit 40 size, combined with the mobile advantage of a 115 mm angle grinder, offers the operator high material removal power even in the toughest and smallest areas. This combination is an excellent solution for cleaning thick weld seams and large burrs on hard metals in workshop and construction site environments.

Economical Solution of the Flap Disc Form

While traditional grinding discs wear out quickly on hard metals, ZR Flap Discs, with their long-lasting structure and self-sharpening property, offer fewer disc changes, less downtime, and lower unit cost. This is a significant economic advantage, especially for workshops working with expensive stainless steel and alloyed materials.

The Karbosan ZR Flap Disc 115x22 mm Grit 40, thanks to the superior hardness and self-sharpening property of Zirconium, the aggressive material removal power provided by Grit 40, and the control offered by a 115 mm machine, is a specialized and premium abrasive solution for fast, long-lasting, and high-performance surface preparation on the hardest metals in the stainless steel, machine manufacturing, and heavy metal processing sectors.