About the Englau Group
With over 20 years of expertise in the abrasives industry, Englau Group designs, manufactures, and exports a comprehensive range of high-performance abrasive solutions — including bonded cutting and grinding wheels, flap discs, and coated sanding belts. Serving the exacting demands of metalworking, structural fabrication, automotive manufacturing, and precision engineering, all our products are manufactured in strict accordance with the German EN 12413 standard — a globally recognized benchmark for abrasive tool safety and performance. Our application engineering team partners with industrial customers to optimize grain formulations, define precise product specifications, and deliver ongoing technical support that drives operational efficiency and extends tool service life.
For industrial buyers and distributors, Englau Group offers full OEM manufacturing capabilities, producing abrasive products under your brand. All key parameters are fully customizable — including grit size, bond type, wheel dimensions, abrasive grain material, backing type, hardness grade, wheel geometry, hole patterns, and color coding — ensuring complete conformity with your technical specifications and target market requirements.
ABRASIVE GRAINS
The performance of any coated abrasive product is fundamentally determined by the abrasive grain used in its construction. Each grain type exhibits distinct characteristics in terms of hardness, friability, self-sharpening behavior, and thermal resistance — properties that directly influence cutting efficiency, surface finish quality, and tool life. The most common abrasive grains used in industrial coated abrasives are ceramic alumina, aluminum oxide, zirconia alumina, silicon carbide, and garnet.
Abrasive grains are crushed and classified into standardized grit sizes using precision-calibrated screens. Grit sizes range from 12 (very coarse, for aggressive stock removal) to 1200 (very fine, for precision finishing and polishing). Once classified, the grains are adhered to a backing material using resin, glue, or combination bond systems, with grain orientation and coating density further influencing the product's cutting characteristics.
Below are descriptions of the most common abrasive grains:
Ceramic Alumina
Ceramic alumina is a premium, synthetically manufactured abrasive grain featuring a highly uniform, high-density microstructure. Its engineered self-sharpening mechanism continuously exposes fresh cutting edges during operation, delivering consistent stock removal rates and extended wheel life. Ceramic alumina is the preferred choice for high-pressure grinding of difficult-to-machine materials such as hardened steels, titanium alloys, and heat-resistant superalloys.
Aluminum Oxide (Alumina)
It is a challenging, blocky-shaped, man-made grain used for top-speed grinding and finishing metals, wood, and other high-wear materials without excessive fracturing or shedding. The power to resist fracturing is the primary consideration; alumina will outperform all other coated abrasive grains.
Zirconia Alumina
Zirconia alumina is a dense, synthetically manufactured crystalline grain engineered for aggressive stock removal applications. Its unique micro-fracturing behavior produces a continuous self-sharpening effect, maintaining sharp cutting edges throughout the wheel’s service life. Zirconia alumina is particularly well-suited to high-pressure grinding of stainless steel, structural steel, and other tough ferrous alloys where rapid material removal and extended tool life are critical.
Silicon Carbide
Silicon carbide is a hard, sharp, synthetically produced abrasive grain well-suited to non-ferrous and non-metallic substrates, including aluminum, copper, concrete, stone, glass, and ceramics. As a highly friable grain, it fractures readily under light pressure, continuously exposing new sharp cutting points. This characteristic enables fast, clean cutting with minimal heat generation — making silicon carbide the optimal choice for finishing operations on soft metals and brittle materials.
Garnet
Garnet is a naturally occurring abrasive mineral with a relatively strong but brittle grain structure. Compared to synthetic abrasives, garnet exhibits greater variability in grain size and hardness. It is primarily used in woodworking applications — particularly hand sanding and fine finishing of timber surfaces — where its natural sharpness produces a smooth, clean finish. Due to its lower durability, garnet is not recommended for metalworking or high-pressure industrial grinding applications.
Frequently Asked Questions
What is the difference between coated, non-woven, and bonded abrasives?
Coated abrasives have grains bonded to a flexible backing, such as paper or cloth. Non-woven abrasives embed grit within a three-dimensional nylon fiber structure for added flexibility and conformability. Bonded abrasives are solid tools, such as grinding wheels and cut-off discs, with grains consolidated into a rigid substrate.
What materials can Englau Group abrasives be used on?
Our full range of abrasive solutions is formulated for use on steel, stainless steel, aluminum, cast iron, titanium alloys, plastics, composites, coatings, and painted surfaces.
What grit sizes are available?
Our coated and nonwoven abrasive products are available in a wide range of grades and grit sizes to meet specific application requirements. Typical grit sizes offered include P36 to P1200 for coated abrasives and medium to ultra-fine grades for nonwoven materials, covering most common needs from heavy stock removal to fine finishing. For specialized applications or the full range of available sizes, please contact us for our complete product specification sheet.
Are your products certified to international standards?
Yes. All Englau Group abrasive products are manufactured in strict accordance with the German EN 12413 standard, one of the most stringent quality certifications in the global abrasives industry. This standard governs safety and performance requirements for bonded abrasive tools, guaranteeing structural strength, operational safety, and uniform quality across our product range.
Can I request product samples or technical datasheets?
Yes. We welcome sample requests and can provide detailed technical datasheets for all product categories. Please contact our team directly with your product requirements, and we will respond within 3–5 business days.
Does Englau Group offer application-specific or custom formulations?
Yes. With over 20 years of experience, we develop market-specific, application-optimized formulations tailored to customers’ unique usage conditions and performance requirements.
Do you accept OEM orders and private label manufacturing?
Yes. Englau Group supports full OEM manufacturing and can produce our complete range of abrasive products under your brand, with custom labeling, packaging design, and product specifications customized to your market requirements. The minimum order quantity is 1,000 pieces per item.
For technical inquiries, product specifications, sample requests, or OEM discussions, please contact Englau Group directly:
Mr. Eric Lau
President, Englau Group Co., Limited
Room 1205, 12/F, 130-132 Des Voeux Road Central, Hong Kong
Phone: +86 137 7034 5768
Email: eric.twintrade@gmail.com
