Ingersoll Rand ep51 Air Engraving Pen 90 Psi 1/8 in Npt

Product Description

The INGERSOLL RAND ep51 is a pneumatic air engraving pen designed for industrial marking and engraving applications on metal and plastic workpieces. Powered by compressed air at 90 psi, it delivers up to 13,000 strokes per minute through a medium point stylus, making it effective for fast, repeatable marking on hard surfaces. The tool measures 5.625 inches in length and weighs just 0.3 pounds, keeping hand fatigue low during extended use. Air is supplied through a 1/8 inch NPT inlet, with a minimum 1/4 inch hose recommended. Variable speed settings give the operator control over mark depth and intensity.

The ep51 is suited for industrial environments where consistent, legible part marking is required. It handles both metal and plastic substrates, making it a practical choice for fabrication shops, machine shops, and maintenance departments. The lightweight, pen-style body allows precise control for marking serial numbers, part codes, and identification marks directly on components. One medium point stylus is included at purchase, and no hoses are included with the tool.

Key Features

• Up to 13,000 strokes per minute for fast, efficient engraving
• Variable speed control for adjustable mark depth and detail
• Compatible with metal and plastic workpiece materials
• Lightweight at 0.3 pounds and 5.625 inches long for reduced hand fatigue
• 1/8 inch NPT air inlet with 90 psi required operating pressure
• Includes one medium point stylus

Compatibility

Designed as an OEM-style pneumatic engraving pen compatible with standard compressed air systems supplying 90 psi through a 1/4 inch minimum hose and 1/8 inch NPT fittings.

Installation Notes

Installation and setup should be performed by a qualified technician familiar with pneumatic tool connections. Shut off the compressed air supply and bleed the line before connecting or disconnecting the tool. Verify the air supply meets the 90 psi requirement and that the supply hose is at least 1/4 inch in diameter to ensure proper airflow. Inspect the NPT fitting connection for leaks before operating.

Technical Specifications

• Required Pressure: 90 psi
• Air Consumption: 1.5 cfm
• Maximum Strokes per Minute: 13,000
• Air Inlet Size: 1/8 inches
• Air Inlet Type: NPT
• Minimum Hose Size: 1/4 inches
• Speed Settings: Variable
• Tool Length: 5.625 inches
• Tool Weight: 0.3 pounds
• Compatible Workpiece Material: Metal, Plastic
• Tip Types Included: Medium Point Stylus
• Number of Tips Included: 1
• Duty: Industrial
• Country of Origin: Mexico

Standard Information

• Brand: INGERSOLL RAND
• Manufacturer Part Number: ep51