Built for Shipyards. Trusted Offshore. Ready for Heavy-Duty Work.

The Sempo SP-230 Marine Air Angle Grinder is a 9-inch (230mm) heavy-duty pneumatic grinder built to meet IMPA Code 590303 — the international marine supply standard.

Designed for U.S. shipyards, offshore platforms, pipeline maintenance, and heavy fabrication shops, this grinder delivers controlled 6000 RPM torque for aggressive rust removal, weld grinding, and surface preparation in environments where electric tools are unsafe. Operating at 6,000 RPM, it provides controlled high-torque performance ideal for aggressive material removal while maintaining stability and operator safety in harsh marine conditions.

Key Features

IMPA Code 590303 – Marine Supply Standard

Recognized under international marine procurement systems and widely specified by ship chandlers.

Safe Air-Powered Operation

• Eliminates electrocution risk in wet environments

• Reduces ignition hazards compared to electric grinders

• Ideal for engine rooms, decks, and offshore rigs

Controlled 6,000 RPM Performance

Lower RPM than high-speed grinders, delivering:

• Strong torque for heavy grinding

• Better control during descaling

• Reduced vibration stress

• Improved disc longevity

Two-Handed Vertical Grip Design

• PVC auxiliary handle

• Balanced weight distribution

• Designed for extended shipyard use

Industrial Metal Housing

Engineered to withstand:

• Saltwater exposure

• Marine corrosion

• Heavy-duty fabrication environments

Technical Specifications

Ideal Applications

✔ Ship hull rust removal
✔ Marine deck descaling
✔ Offshore structural grinding
✔ Heavy weld finishing
✔ Oil & gas platform maintenance
✔ Industrial metal fabrication

What’s Included

• Sempo SP-230 Marine Air Grinder

• Wheel Guard

• Spanner/Wrench

• Safety Manual

Grinding disc sold separately.