Compressed Air Requirement and Abrasive Consumption Tool

How to Use:

Please select your known nozzle orifice size and your pressure from the drop down menus below to find out your compressed air requirements and abrasive consumption. You may also enter your cfm if you know that.

If you only know one of the below options, select it below and leave the other options empty. To the right, the table will highlight with your requirements and consumption.

What is your Nozzle Orifice Size?

What is your Pressure?

OR

What is your cfm?

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* Consumption rates are based on abrasives that weigh 100 pounds per cubic foot.

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Nozzle Orifice	Pressure at the Nozzle (psi)								Air (in cfm) Abrasive HP Requirements
Nozzle Orifice	50	60	70	80	90	100	125	140	Air (in cfm) Abrasive HP Requirements
No. 2 (1/8")	11	13	15	17	18.5	20	25	28	Air (cfm)
	.67	.77	.88	1.01	1.12	1.23	1.52	1.70	Abrasive (cu.ft/hr)
	67	77	88	101	112	123	152	170	lbs/hr
	2.5	3	3.5	4	4.5	5	5.5	6.2	Compressor HP
No. 3 (3/16")	26	30	33	38	41	45	55	62	Air (cfm)
	1.5	1.71	1.96	2.16	2.38	2.64	3.19	3.57	Abrasive (cu.ft/hr)
	150	171	196	216	238	264	319	357	lbs/hr
	6	7	8	9	10	10	12	13	Compressor HP
No. 4 (1/4")	47	54	61	68	74	81	98	110	Air (cfm)
	2.68	3.12	3.54	4.08	4.48	4.94	6.08	6.81	Abrasive (cu.ft/hr)
	268	312	354	408	448	494	608	681	lbs/hr
	11	12	14	16	17	18	22	25	Compressor HP
No. 5 (5/16)	77	89	101	113	126	137	168	188	Air (cfm)
	4.68	5.34	6.04	6.72	7.40	8.12	9.82	11.0	Abrasive (cu.ft/hr)
	468	534	604	672	740	812	982	1100	lbs/hr
	18	20	23	26	28	31	37	41	Compressor HP
No. 6 (3/8")	108	126	143	161	173	196	237	265	Air (cfm)
	6.68	7.64	8.64	9.60	10.52	11.52	13.93	15.6	Abrasive (cu.ft/hr)
	668	764	864	960	1052	1152	1393	1560	lbs/hr
	24	28	32	36	39	44	52	58	Compressor HP
No. 7 (7/16")	147	170	194	217	240	254	314	352	Air (cfm)
	8.96	10.32	11.76	13.12	14.48	15.84	19.31	21.63	Abrasive (cu.ft/hr)
	896	1032	1176	1312	1448	1584	1931	2163	lbs/hr
	33	38	44	49	54	57	69	77	Compressor HP
No. 8 (1/2")	195	224	252	280	309	338	409	458	Air (cfm)
	11.60	13.36	15.12	16.80	18.56	20.24	24.59	27.54	Abrasive (cu.ft/hr)
	1160	1336	1512	1680	1856	2024	2459	2754	lbs/hr
	44	50	56	63	69	75	90	101	Compressor HP
No. 10 (5/8")	308	356	404	452	504	548	598	646	Air (cfm)
	18.75	21.4	24.22	26.9	29.73	32.5	35.22	37.98	Abrasive (cu.ft/hr)
	1875	2140	2422	2690	2973	3250	3522	3798	lbs/hr
	68.5	79.5	90	100.5	112	122	133	143.7	Compressor HP
No. 12 (3/4")	432	504	572	644	692	784	844	914	Air (cfm)
	26.72	30.56	34.56	38.4	42.08	46.08	49.92	53.78	Abrasive (cu.ft/hr)
	2672	3056	3456	3840	4208	4608	4992	5378	lbs/hr
	96	112	127	143	154	174.5	188	203.2	Compressor HP

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