1. What is a 9-Inch Angle Grinder? Key Features & Industrial Applications

A 9-inch (230mm) angle grinder is a heavy-duty power tool designed for industrial cutting, grinding, and surface preparation. It is widely used in:

Metal fabrication; Construction and infrastructure; Stone and tile cutting; Workshop and maintenance work

Core features of a professional 9-inch angle grinder include:

① High power output for continuous heavy-load operation ② Durable gearing system ③ Effective cooling design to prevent overheating ④ Ergonomic grip for safe and stable handling ⑤ Compatibility with a wide range of abrasives and cutting discs

A high-quality 230mm grinder ensures efficiency, long service life, and safety, especially in demanding industrial environments.

2. Chinese Best 9-Inch Angle Grinder: KYNKO S1M-KD71-230

S1M-KD71-230 is KYNKO's new-generation 230mm angle grinder, engineered for maximum power and durability.

Key Strengths of the KD71-230

① 2600W rated power (peak 3000W) – one of the most powerful 9-inch grinders in its class

② Exclusive dustproof & waterproof technology – significantly extends service life

③ Soft start + restart protection – better safety for industrial users

④ Certified globally – CE, CB, CCC, RoHS

Technical Highlights (Summarized)

① 360° cooling system for stable temperature control

② Advanced motor design delivering 2600W high efficiency

③ Patented coating protection to extend motor lifespan

④ 20CrMnTi gears with double heat treatment—lower noise & longer life

⑤ Ergonomic body for comfortable handling

⑥ Imported carbon brushes, lifespan above 200 hours

⑦ Low vibration at high RPM, steady operation

⑧ Wide applications – ideal for metal, tile, and stone cutting/grinding

Designed & manufactured by KYNKO Power Tools. Quality guaranteed.

3. About KYNKO Power Tools

Founded in 1993, KYNKO is one of China's leading professional power tool manufacturers.

Key capabilities: ① 80,000㎡ manufacturing base ② 30 advanced production lines   ③ 600+ skilled employees   ④ Approved by CE, GS, RoHS, CCC   ⑤ Exported to 70+ countries

KYNKO, together with brands like Ingco, Total, Dongcheng, is widely recognized as a reliable and reputable Chinese power tools brand.

KYNKO is especially known for its top-tier angle grinders—ranking among the top 5 in China for quality, with strong expertise in 9-inch / 230mm heavy-duty grinders, due to its deep experience in the stone-working industry.

The product range covers both corded and cordless tools used in metalworking, construction, woodworking, and industrial applications.

KYNKO also offers OEM & ODM services, helping global partners build their own brands with stable quality, strong performance, and reliable supply.