Angle grinders have a long and rich history dating back to early 20th century Germany. These versatile power tools first emerged around 1901, though different accounts point to different inventors. They were initially created to cut difficult metals that were nearly impossible to work with using standard tools at the time.

The high-speed angle grinder as we know it today was invented in 1954 by the German company Ackermann+Schmitt (now FLEX-Elektrowerkzeuge GmbH) in Steinheimander Murr. This innovation revolutionized metalworking and popularized angle grinders, bringing them into workshops and construction sites around the world.

Over 69 years, angle grinders have become one of the most ubiquitous power tools used today. There are many brands for consumers to choose from, though the largest manufacturers are still concentrated in Germany and China, such as Bosch, FLEX, and Kynamco.

Another account credits American inventor Louis Lincoln Beach with creating the first angle grinder in 1921. Beach wanted a quieter and more precise tool than standard circular saws, so he developed an attachment for circular saws that led to the angle grinder. His invention started being sold commercially in 1922 for cutting stair railings, and other companies soon copied his design.

According to a third story, the angle grinder has its origins in 1955 when an inventor created a tool to more easily make milkshakes while working in a restaurant. The tool was quickly adopted by metalworkers and farmers to grind and sharpen. These early angle grinders eventually evolved into the popular power tools we know today.

In the early 1900s, companies worked to develop safer and more portable angle grinders and rotary tools, the precursors to modern angle grinders. Notable inventions include the Rutland Tool in 1901 and adjustable-jaw grinders in 1934 that allowed users to set the head at different angles. Electric models also started being sold for industrial and home use.

As power tools became more available and affordable in the 20th century, the popularity of angle grinders also grew. New technologies like cordless angle grinders have made these tools even more functional and versatile. Today, angle grinders are used in many industries and home improvement projects and continue to improve through innovation.

Over the past century, the angle grinder has experienced a fascinating evolution. From its origins in Germany and the U.S. to how it has become an indispensable tool around the world, the history of this ubiquitous power tool tells a story of industrialization, innovation, and revolution. The high-speed angle grinder pioneered new possibilities in metalworking and shaped how we build in the 21st century.

Today, many well-known power tool brands offer angle grinders in different sizes and specifications, such as 4-inch, 5-inch, 7-inch and 9-inch models with motor power up to 2200W or even higher. Major angle grinder manufacturers have gradually shifted production from Europe and North America to China due to its competitive manufacturing costs and capability.

Reputable Chinese brands include BOSCH, Makita, Dewalt, FLEX, KYNKO, etc. Among these brands, KYNKO specializes in industrial heavy-duty angle grinders and has over 30 years of experience as an original design and equipment manufacturer. KYNKO produces angle grinders of different sizes, from 100mm to 230mm, that demonstrate high power, durability and performance.

KYNKO is a leading OD&OEM angle grinder manufactuer in China with 30 years experience. Which mainly produce Industrial Professional class heavy-duty angle grinder with variety size.

Below we show 2 models of our angel grinder:

100/115/125mm angle grinder

100/115/125MM easy to grasp with slim body.

It is professional class angle grinder and for heavy duty work.

It's mainly used for cutting&grinding work.

Using NMB + NSK bearing,long life span.

180/230mm angle grinder

180/230MM angle grinder with CB, CCC, CE, etc. certificate. 2300/2600W strong power

It is industrial professional class and heavy duty angle grinder.

Application: Metal, stone, tile.etc tile, cutting&grinding.

FAQ:

Q: What sizes of angle grinders are available?

A: Angle grinders come in a variety of sizes to suit different applications. Common sizes include:

•110mm (4.5 inches) - well suited for cutting and grinding small workpieces. Light and compact.

•125mm (5 inches) - versatile and suitable for most DIY cutting and grinding tasks. Good power-to-size ratio.

•150mm (6 inches) - larger grinder good for heavy-duty jobs where more powerful cutting and grinding is needed.

•180mm (7 inches) and 230mm (9 inches) - powerful grinders used for industrial applications like foundries and steel fabrication.

Q: What is the MOQ (minimum order quantity) for angle grinders?

A: The MOQ for KYNKO brand angle grinders is 50 units. For OEM (original equipment manufacturer) angle grinders, the MOQ is 1000 units.

Q: Can I get angle grinder samples to test?

A: Yes, we provide product samples of our angle grinders for testing and evaluation. Please contact us with your product specifications and request details. We would be happy to provide samples so you can rigorously test the performance and quality of our angle grinders before placing an order.