Fans
Chief provides grain aeration systems to fit your specific needs. Caldwell fans are designed to provide high performance, dependable service and quality acceptance throughout the world. Safe, reliable and attractive, Caldwell offers:
- Axial Fans designed for high performance, low static pressure aeration systems with shallow grain depths
- Centrifugal Fans designed for high-performance aeration systems with medium static pressures and deeper grain depths
- Inline Centrifugal Fans designed for aeration systems with medium to high static pressures and deeper grain depths
Over 45 years of Aeration Experience.
SAFE-RELIABLE-DEPENDABLE
AXIAL FANS
Diameters from 12″ to 28″ fit most applications, single and three-phase motors with horsepower .75 – 12.5
INLINE CENTRIFUGAL FANS
Compact and quiet, Caldwell in-line centrifugal fans are ideal for medium to high static pressures and allow for easy field upgrades with low-temperature heaters.
CENTRIFUGAL FANS
Designed for farm or commercial use, centrifugal fans operate quietly and allow for easy field upgrades with heaters.
Specs
Fans Axial Air Flow Ratings (CFM)
| Axial Air Flow Ratings (CFM) based upon Static Pressure (IN) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Model # | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 |
| AF12-.75 | 2200 (1040L/s) | 1920 (907L/s) | 1050 (496L/s) | 480 (226L/s) | 240 (113L/s) | |||||||||
| AF14-1 | 2820 (1333L/s) | 2550 (1205L/s) | 2250 (1064L/s) | 1350 (638L/s) | 920 (435L/s) | 640 (302L/s) | 350 (165L/s) | |||||||
| AF18-1 | 4925 (2329L/s) | 4450 (2104L/s) | 3925 (1856L/s) | 3250 (1536L/s) | 2150 (1016L/s) | 1450 (685L/s) | 900 (425L/s) | |||||||
| AF18-3 | 5650 (2671L/s) | 5400 (2553L/s) | 5100 (2411L/s) | 4700 (2222L/s) | 4300 (2033L/s) | 3250 (1536L/s) | 2400 (1134L/s) | 1800 (851L/s) | 1200 (567L/s) | |||||
| AF24-5 | 12250 (5793L/s) | 11600 (5485L/s) | 10900 (5154L/s) | 10100 (4776L/s) | 9150 (4327L/s) | 8000 (3783L/s) | 6500 (3073L/s) | 4950 (2340L/s) | 3900 (1844L/s) | 3000 (1418L/s) | ||||
| AF24-10 | 14000 (6620L/s) | 13800 (6526L/s) | 13300 (6289L/s) | 13000 (6147L/s) | 12350 (5840L/s) | 11400 (5391L/s) | 10150 (4799L/s) | 7000 (3310L/s) | 5300 (2506L/s) | 4300 (2033L/s) | 3400 (1607L/s) | 2500 (1182L/s) | 1500 (709L/s) | 600 (283L/s) |
| AF28-12 | 16300 (7708L/s) | 15700 (7424L/s) | 15100 (7140L/s) | 14435 (6826L/s) | 13700 (6478L/s) | 12950 (6124L/s) | 12200 (5769L/s) | 11350 (5367L/s) | 10500 (4965L/s) | 9550 (4516L/s) | 8400 (3972L/s) | 7150 (3381L/s) | 6050 (2861L/s) | 5250 (2482L/s) |
Fans Centrifugal (1750 RPM)
| Centrifugal (1750 RPM) Air Flow Ratings(CFM) based upon Static Pressure (IN) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Model # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| CF22-3 | 4990 (2359L/s) | 4620 (2184L/s) | 4200 (1986L/s) | 3640 (1721L/s) | 2480 (1172L/s) | |||||||||
| CF24-5 | 7550 (3570L/s) | 6550 (3097L/s) | 5850 (2766L/s) | 5250 (2482L/s) | 4550 (2151L/s) | 3700 (1749L/s) | ||||||||
| CF24-7 | 10800 (5107L/s) | 10200 (4823L/s) | 9400 (4445L/s) | 8000 (3783L/s) | 7150 (3381L/s) | 6100 (2884L/s) | ||||||||
| CF27-10 | 13285 (6282L/s) | 12485 (5904L/s) | 11625 (5497L/s) | 10725 (5071L/s) | 9800 (4634L/s) | 8700 (4114L/s) | 7300 (3452L/s) | |||||||
| CF27-15 | 16500 (7802L/s) | 15500 (7329L/s) | 14400 (6809L/s) | 13200 (6242L/s) | 11950 (5651L/s) | 10600 (5012L/s) | 8575 (4055L/s) | |||||||
| CF30-20 | 19900 (9410L/s) | 19000 (8985L/s) | 18000 (8512L/s) | 16800 (7944L/s) | 15775 (7459L/s) | 14775 (6987L/s) | 13775 (6514L/s) | 12700 (6005L/s) | ||||||
| CF30-25 | 23400 (11065L/s) | 22400 (10592L/s) | 21500 (10167L/s) | 20400 (9647L/s) | 19400 (9174L/s) | 18300 (8654L/s) | 17100 (8086L/s) | 15900 (7519L/s) | 14600 (6904L/s) | |||||
| CF33-40 | 26620 (12588L/s) | 25840 (12219L/s) | 25100 (11869L/s) | 24260 (11472L/s) | 23290 (11013L/s) | 22370 (10578L/s) | 21310 (10077L/s) | 20130 (9519L/s) | 18780 (8881L/s) | 17100 (8086L/s) | ||||
| CF33-50 | 31500 (14896L/s) | 30500 (14423L/s) | 29400 (13903L/s) | 28200 (13335L/s) | 27000 (12768L/s) | 25700 (12153L/s) | 23000 (10876L/s) | 22300 (10545L/s) | 20800 (9836L/s) | 19200 (9079L/s) | ||||
| CF33-60 | 36470 (17246L/s) | 35390 (16735L/s) | 34400 (16267L/s) | 33230 (15714L/s) | 31900 (15085L/s) | 30640 (14489L/s) | 29190 (13803L/s) | 27580 (13042L/s) | 25730 (12167L/s) | 23400 (11065L/s) | ||||
| CF36-75 | 39900 (18868L/s) | 39100 (18490L/s) | 38200 (18064L/s) | 37500 (17733L/s) | 36600 (17308L/s) | 35500 (16787L/s) | 34600 (16362L/s) | 33300 (15747L/s) | 32100 (15180L/s) | 31300 (14801L/s) | 29000 (13714L/s) | 27100 (12815L/s) | 24700 (11680L/s) | |
| CF36-100 | 48600 (22982L/s) | 47700 (22557L/s) | 46600 (22037L/s) | 45700 (21611L/s) | 44600 (21091L/s) | 43200 (20429L/s) | 42200 (19956L/s) | 40700 (19247L/s) | 39100 (18490L/s) | 37300 (17639L/s) | 35400 (16740L/s) | 33100 (15652L/s) | 30200 (14281L/s) | |
Fans Centrifugal (3500 RPM) - UHP
| Centrifugal (3500 RPM) UHP Air Flow Ratings (CFM) based upon Static Pressure (IN) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Model # | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| C22-73NC | 2660 (1257L/s) | 2560 (1210L/s) | 2480 (1172L/s) | 2360 (1116L/s) | 2260 (1068L/s) | 2140 (1012L/s) | 2020 (955L/s) | 1860 (879L/s) | 1660 (785L/s) | ||
| C24-103NC | 3050 (1442L/s) | 2950 (1395L/s) | 2860 (1352L/s) | 2760 (1305L/s) | 2660 (1257L/s) | 2576 (1218L/s) | 2480 (1172L/s) | 2350 (1111L/s) | 2238 (1058L/s) | 2076 (981L/s) | 1900 (898L/s) |
| C24-153NC | 4575 (2163L/s) | 4440 (2099L/s) | 4300 (2033L/s) | 4180 (1976L/s) | 4000 (1891L/s) | 3900 (1844L/s) | 3725 (1761L/s) | 3540 (1674L/s) | 3363 (1590L/s) | 3125 (1477L/s) | 2850 (1347L/s) |
| C24-203NC | 6100 (2884L/s) | 5900 (2790L/s) | 5725 (2707L/s) | 5520 (2610L/s) | 5325 (2518L/s) | 5150 (2435L/s) | 4960 (2345L/s) | 4700 (2222L/s) | 4475 (2116L/s) | 4150 (1962L/s) | 3800 (1797L/s) |
| C24-253NC | 7480 (3537L/s) | 7250 (3428L/s) | 7000 (3310L/s) | 6800 (3215L/s) | 6580 (3111L/s) | 6360 (3007L/s) | 6080 (2875L/s) | 5800 (2742L/s) | 5480 (2591L/s) | 5100 (2411L/s) | 4660 (2203L/s) |
| C24-303NC | 9150 (4327L/s) | 8880 (4199L/s) | 8600 (4066L/s) | 8360 (3953L/s) | 8000 (3783L/s) | 7800 (3688L/s) | 7450 (3523L/s) | 7080 (3348L/s) | 6725 (3180L/s) | 6250 (2955L/s) | 5700 (2695L/s) |
| C24-403NC | 12200 (5769L/s) | 11800 (5580L/s) | 11450 (5414L/s) | 11040 (5220L/s) | 10650 (5036L/s) | 10300 (4870L/s) | 9920 (4691L/s) | 9400 (4445L/s) | 8950 (4232L/s) | 8300 (3925L/s) | 7600 (3594L/s) |
Fans Centrifugal (3500 RPM)
| Centrifugal (3500 RPM) Air Flow Ratings(CFM) based upon Static Pressure (IN) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Model # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| CF15-3 | 2560 (1210L/s) | 2440 (1153L/s) | 2320 (1097L/s) | 2180 (1030L/s) | 2090 (988L/s) | 1940 (917L/s) | 1800 (851L/s) | 1590 (751L/s) | 1370 (647L/s) | |||||||||||
| CF15-5 | 3720 (1759L/s) | 3600 (1702L/s) | 3390 (1603L/s) | 3240 (1532L/s) | 3100 (1465L/s) | 2090 (988L/s) | 2740 (1295L/s) | 2480 (1172L/s) | 2100 (993L/s) | |||||||||||
| CF18-7 | 4170 (1971L/s) | 3960 (1872L/s) | 3750 (1773L/s) | 3520 (1664L/s) | 3250 (1536L/s) | 2950 (1395L/s) | 2470 (1168L/s) | |||||||||||||
| CF18-10 | 5850 (2766L/s) | 5500 (2600L/s) | 5150 (2435L/s) | 4800 (2269L/s) | 4450 (2104L/s) | 4000 (1891L/s) | 3350 (1584L/s) | |||||||||||||
| CF18-15 | 7750 (3664L/s) | 7350 (3475L/s) | 7000 (3310L/s) | 6550 (3097L/s) | 6050 (2861L/s) | 5300 (2506L/s) | 4300 (2033L/s) | |||||||||||||
| CF22-20 | 7400 (3499L/s) | 7140 (3376L/s) | 6860 (3244L/s) | 6600 (3121L/s) | 6330 (2993L/s) | 6040 (2856L/s) | 5740 (2714L/s) | 5390 (2548L/s) | 5020 (2373L/s) | 4510 (2132L/s) | ||||||||||
| CF22-25 | 9090 (4298L/s) | 8770 (4147L/s) | 8440 (3991L/s) | 8120 (3839L/s) | 7770 (3674L/s) | 7420 (3508L/s) | 7050 (3333L/s) | 6630 (3135L/s) | 6150 (2908L/s) | 5500 (2600L/s) | ||||||||||
| CF22-30 | 10990 (5197L/s) | 10610 (5017L/s) | 10200 (4823L/s) | 9820 (4643L/s) | 9400 (4445L/s) | 8970 (4241L/s) | 8530 (4033L/s) | 8030 (3797L/s) | 7450 (3523L/s) | 6700 (3168L/s) | ||||||||||
| CF22-40 | 14580 (6894L/s) | 14080 (6658L/s) | 13540 (6403L/s) | 13020 (6157L/s) | 12470 (5897L/s) | 11900 (5627L/s) | 11320 (5353L/s) | 10650 (5036L/s) | 9880 (4672L/s) | 8900 (4208L/s) | ||||||||||
| CF22-50 | 18180 (8597L/s) | 17550 (8299L/s) | 16870 (7977L/s) | 16230 (7675L/s) | 15540 (7348L/s) | 14920 (7055L/s) | 14100 (6667L/s) | 13250 (6265L/s) | 12300 (5816L/s) | 11090 (5244L/s) | ||||||||||
Fans In-Line Centrifugal (3500 RPM)
| In-Line Centrifugal (3500 RPM) Air Flow Ratings (CFM) based upon Static Pressure (IN) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Model # | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| ILCF14-1 | 1670 (789L/s) | 1625 (768L/s) | 1575 (744L/s) | 1425 (673L/s) | 1290 (610L/s) | 1100 (520L/s) | |||||||||||
| ILCF18-1 | 2540 (1201L/s) | 2340 (1106L/s) | 2120 (1002L/s) | 1840 (870L/s) | |||||||||||||
| ILCF18-3 | 3700 (1749L/s) | 3500 (1655L/s) | 3250 (1536L/s) | 2850 (1347L/s) | 2000 (945L/s) | ||||||||||||
| ILCF24-3 | 4050 (1915L/s) | 3880 (1834L/s) | 3650 (1726L/s) | 3430 (1622L/s) | 3180 (1503L/s) | 2900 (1371L/s) | 2450 (1158L/s) | ||||||||||
| ILCF24-5 | 5500 (2600L/s) | 5230 (2473L/s) | 4950 (2340L/s) | 4650 (2198L/s) | 4330 (2047L/s) | 3950 (1867L/s) | 2700 (1276L/s) | ||||||||||
| ILCF24-7 | 5900 (2790L/s) | 5700 (2695L/s) | 5500 (2600L/s) | 5250 (2482L/s) | 5000 (2364L/s) | 4800 (2269L/s) | 4500 (2128L/s) | 4250 (2009L/s) | 4000 (1891L/s) | 3650 (1726L/s) | 3200 (1513L/s) | ||||||
| ILCF28-7 | 6200 (2931L/s) | 6000 (2837L/s) | 5750 (2719L/s) | 5530 (2615L/s) | 5270 (2492L/s) | 5070 (2397L/s) | 4830 (2284L/s) | 4570 (2161L/s) | 4220 (1995L/s) | 3870 (1830L/s) | 3500 (1655L/s) | ||||||
| ILCF28-10 | 7800 (3688L/s) | 7500 (3546L/s) | 7200 (3404L/s) | 6930 (3277L/s) | 6630 (3135L/s) | 6330 (2993L/s) | 6000 (2837L/s) | 5680 (2686L/s) | 5300 (2506L/s) | 4930 (2331L/s) | 4580 (2165L/s) | ||||||
| ILCF28-15 | 8500 (4019L/s) | 8250 (3901L/s) | 8000 (3783L/s) | 7750 (3664L/s) | 7450 (3523L/s) | 7200 (3404L/s) | 6900 (3263L/s) | 6600 (3121L/s) | 6300 (2979L/s) | 5950 (2813L/s) | 5600 (2648L/s) | 5250 (2482L/s) | 4800 (2269L/s) | 3800 (1797L/s) | |||
