Pneumatic And Hydraulic Equipment Page 618

What will compressed air be used for? The type of work being performed is probably the most important factor in selecting a compressor. Where will the compressor be located? Indoors: Heated environment to prevent airlines from freezing while providing sufficient ventilation to cool compressor where elevated tem- peratures may exist. Outdoors: Protection against ambient environment and provisions for cold weather starting. How much pressure (psi) is needed? Compressor discharge pressure (psi) must exceed the psi requirement of all pneumatic tools or equipment being operated. How much air flow (cfm) is needed? CFM (cubic feet per minute) is the measure of air flow the compressor can create. CFM can be stated in various forms. Always consider ACFM, as it reflects the amount of useable compressed air. What horsepower is required? Horsepower is directly proportional to the cfm rating of the compressor. The higher the horsepower, the more air (cfm) the compressor can deliver. Do not rely solely on horsepower when specifying or selecting an air compressor. What type and size tank is needed? The tank provides a reserve of air to meet peak flow and pressure demands. The larger the receiver, the more reserve available. Tanks are available in vertical and horizontal designs; configuration is dependent upon available floor space. What are the electrical requirements? Identify available incoming electrical service before specifying an air compressor. Always have a qualified electrician review electrical requirements. SPECIFY THE COMPRESSOR Under normal operating conditions, this information should provide a satisfactory guideline for specifying required compressor flow rate (acfm) at pressure (psi). Unusual operating conditions can require a larger unit than calculated. When in doubt, select a larger unit to ensure adequate initial capacity while allowing for future expansion. ____ cfm @ ____ psig 1. Add up the total cubic feet per minute (cfm) required to operate each tool or piece of equipment to be powered by the air compressor. If manufacturer's data is not available for pneumatic device, reference the below table for estimated consumption. 2. Multiply total cubic feet per minute by 1.15 allowing for future growth and the possibility of air leaks within compressed air piping. Match total cubic feet per minute requirements with compressor's delivered flow rate (ACFM). 3. Determine pressure (psi) requirements for all pneumatic equipment. Compressor's discharge pressure (psi) must exceed highest pressure requirement. 4. HAVE QUALIFIED ELECTRICIAN CHECK ELECTRICAL SERVICE (VOLTAGE, PHASE and WIRE SIZE) and MATCH WITH COMPRESSOR VOLTAGE, PHASE and AMPERAGE REQUIREMENTS. Consumption CFM Air Pressure Applications 25% Use Factor PSIG Applications 25% Use Factor PSIG Drill, 3/8" to 5/8" 9.0 70-90 Air Filter Cleaner (*) 3.0 70-100 Screwdriver #5 to 5/16" Screw 6.0 70-90 Body Sander, Orbital (*) 10.0 70-100 Nutsetters, to 3/8" 6.0 70-90 Dusting Gun (blow gun) 2.5 90-100 Impact Wrench, 3/8" 5.0 70-90 Drill, 1/16" to 3/8" (*) 4.0 70-900 Impact Wrench, 1/2" 8.0 70-90 Air Ratchet, 3/8" drive 4.0 70-900 Impact Wrench, 3/4" 9.0 70-90 Die Grinder (*) 5.0 70-100 Impact Wrench, 1" 11.0 70-90 Vertical Disc Sanders (*) 20.0 70-100 Die Grinder 6.0 70-90 Burring Tool (*) 5.0 90-100 Horizontal, Grinder, 4" 15.0 70-90 Rim Stripper 6.0 125-150 Vertical Grinders/Sanders, 5" Pad 9.0 70-90 Tire Changer 1.0 125-150 Burring Tool, Large 6.0 70-90 Tire Inflation Line 2.0 125-150 Hammer, Scaling 3.0 70-90 Tire Spreader 1.0 125-150 Hammer, Chipping 8.0 70-90 Air Hammer (*) 3.0 90-100 Hammer, Riveting-Heavy 8.0 70-90 Paint Spray Gun-production (*) 8.0 90-100 Hammer, Riveting-Light 4.0 70-90 Paint Spray Gun-Undercoat (*) 19.0 90-100 Saws, Circular-8" 11.0 70-90 Car Lift (*) 6.0 145-175 Saws, Circular-12" 16.0 70-90 QUESTIONS TO ANSWER SELECTING AN AIR COMPRESSOR Ingersoll Rand (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 618 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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