{"product_id":"ingersoll-rand-ep51-air-engraving-pen-90-psi-1-8-in-npt","title":"Ingersoll Rand ep51 Air Engraving Pen 90 Psi 1\/8 in Npt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUp to 13,000 strokes per minute for fast, efficient engraving\u003c\/li\u003e\n\u003cli\u003eVariable speed control for adjustable mark depth and detail\u003c\/li\u003e\n\u003cli\u003eCompatible with metal and plastic workpiece materials\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.3 pounds and 5.625 inches long for reduced hand fatigue\u003c\/li\u003e\n\u003cli\u003e1\/8 inch NPT air inlet with 90 psi required operating pressure\u003c\/li\u003e\n\u003cli\u003eIncludes one medium point stylus\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned 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.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation 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.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Pressure\u003c\/strong\u003e: 90 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Consumption\u003c\/strong\u003e: 1.5 cfm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Strokes per Minute\u003c\/strong\u003e: 13,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Inlet Size\u003c\/strong\u003e: 1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Inlet Type\u003c\/strong\u003e: NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Hose Size\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Settings\u003c\/strong\u003e: Variable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Length\u003c\/strong\u003e: 5.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Weight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Workpiece Material\u003c\/strong\u003e: Metal, Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Types Included\u003c\/strong\u003e: Medium Point Stylus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Tips Included\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuty\u003c\/strong\u003e: Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Mexico\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: INGERSOLL RAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ep51\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INGERSOLL RAND","offers":[{"title":"Default Title","offer_id":51524786782514,"sku":"EP51","price":581.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cc94101cc9044470337914154d81ee30.jpg?v=1785457488","url":"https:\/\/voomisupply.com\/products\/ingersoll-rand-ep51-air-engraving-pen-90-psi-1-8-in-npt","provider":"Voomi Supply","version":"1.0","type":"link"}