The Nitto Kohki L-35C pneumatic die grinder is a high-quality pneumatic grinding tool manufactured by Nitto Kohki, a renowned Japanese brand specializing in industrial pneumatic tools. It is designed for high-precision fine grinding, polishing, deburring, and mold processing.
Technical Specifications
- Type: Pneumatic die grinder
- No-load speed: Approx. 37,500 rpm
- Working air pressure: 0.6 MPa
- Collet size: 3 mm
- Weight: Approx. 0.45 kg
- Operating medium: Clean compressed air
Key Features and Advantages
- Ergonomic 90-degree angle design: The perpendicular grinding head combined with a pencil-like slender body allows operators to reach deep into dead corners of mold cavities, machine recesses, or curved pipes.
- Ultra-durable, quiet pneumatic motor: Features extremely high mechanical precision rotor core technology. Operating at 37,500 RPM, it runs smoothly with virtually zero runout transmitted to the operator's hand, ensuring millimeter-level precision. The rear exhaust system directs air away from the user.
- High-grade high-strength aluminum alloy housing: Crafted from aerospace-grade aluminum alloy, optimizing lightweight performance while offering high impact resistance and fast heat dissipation.
- Lock-off throttle control mechanism: Equipped with a safety lever to prevent accidental startup when placed on a workbench or when connecting the air hose.
Practical Applications in Precision Engineering
- Mold Making and Maintenance: Used for fine grinding and fitting edges of plastic injection molds and die-casting molds, removing surface defects.
- Precision Mechanics & CNC: Deburring CNC milled or turned parts, especially those with narrow grooves or blind holes.
- Automotive/Aerospace Production & Repair: Smoothing welds in concealed areas or modifying engine intake/exhaust ports.
- High-end Jewelry and Craftsmanship: Ideal for carving and polishing precious metals and miniature parts due to its lightweight and high precision.
Important Maintenance Notes
- DAILY LUBRICATION (MANDATORY): Before and after each work shift, apply 2 to 3 drops of dedicated pneumatic oil (ISO VG 10 or spindle oil) directly into the air inlet. Lack of lubrication will cause rapid vane wear.
- Clean and dry air supply: Must use an air filter (water and dust separator) before supplying air to the L-35C.
- Do not overload: Let the high natural speed (37,500 RPM) do the work. Avoid excessive manual pressure.
