Ingersoll Rand 3445MAX-M 115mm Air Angle Grinder – M14

Key Features

• 0.66 kW (0.88 HP) pneumatic motor
• Maximum free speed: 12,000 RPM
• 115mm (4.5") wheel capacity
• M14 spindle mounting
• Internal governor maintains speed under load
• Lightweight composite housing
• Built-in lubricating wick for extended gear life
• Lever safety throttle with lock-off mechanism
• Rear exhaust configuration

Product Overview

The Ingersoll Rand 3445MAX-M is a heavy-duty 115mm (4.5") pneumatic angle grinder engineered for high-performance material removal in industrial and workshop environments. As part of the MAX Series, it delivers strong power output combined with controlled handling for demanding grinding and cutting tasks.

An internal governor helps maintain consistent speed under load, supporting productivity during extended operation. The M14 spindle configuration ensures compatibility with common Type 27 grinding wheels and Type 1, 27, 41 and 42 cutting wheels used across fabrication and repair industries.

The lightweight composite housing improves durability while reducing overall weight. An ergonomic grip and lever-actuated safety throttle with lock-off provide controlled start-up and operator comfort during prolonged use.

Performance & Operating Information

Designed to operate at 90 PSI (6.2 bar), the 3445MAX-M provides a balanced power-to-weight ratio at approximately 1.54–1.56 kg. The rear exhaust design helps direct air away from the operator and work surface during operation.

This model is widely used in automotive repair, construction, metal fabrication, and general industrial maintenance environments.

Technical Specifications

Typical Applications

• Grinding and weld preparation
• Cutting steel and sheet metal
• Rust and coating removal
• Automotive body repair
• Construction and fabrication work