Cooler fan blade size chart: which blade fits which motor

Blade size, number of leaves, sweep in mm and rotation for every cooler motor we make, from the 89 Dia Bachcha motor to large H-Frame motors. Prepared by the NEXPOWER technical team.

कौन सी कूलर मोटर में कौन सा ब्लेड (पंखा) लगेगा, कितने इंच का और कितनी पत्ती का: पूरी जानकारी इस चार्ट में है।

Chart by motor Download PDF

How to read a cooler blade size. Drawing by NEXPOWER.

How to read a blade size

A cooler blade is written as size × leaves. An 18×3 blade is 18 inch across with 3 leaves; a 16×5 is 16 inch with 5 leaves. The sweep in millimetres is what you measure across the turning blade: 16 inch is about 380 to 400 mm, 18 inch about 440 to 450 mm, 20 inch about 470 to 510 mm.

Three more things decide the fit: the bore must match the motor shaft, the rotation (clockwise or anticlockwise) must match the motor, and the blade angle must suit the stack. A steeper angle moves more air and loads the motor more.

Short forms used in the trade

C/W: clockwise blade
A/C: anticlockwise blade
PP: polypropylene, light and economical
PP glass-filled: stiffer, holds shape in heat
ABS: smooth finish, good balance
With bush / without bush: metal bush moulded in the hub, or plain hub
6 sut: 19 mm shaft. 1 inch: 25 mm. 1¼ inch: 32 mm

Blade chart by motor

Find your motor in the first column. The blades listed are the sizes that motor is built to carry.

Motor	Blade size	Suitable blades (reference code)
H-Frame 32 mm	18.5 / 20 inch	20 inch × 4 leaf Commercial 108° Angle ABS, anticlockwise (SP60); 20 inch × 4 leaf German PP, anticlockwise (SP62); 20 inch × 4 leaf German PP glass-filled, anticlockwise (SP62); 18.5 inch × 4 leaf Commercial German without Bush (SP84)
H-Frame 35 mm	20 inch	20 inch × 4 leaf Commercial 112° Angle PP glass-filled, anticlockwise (SP58)
H-Frame 38 mm	20 inch	20 inch × 4 leaf Commercial 120° Angle PP glass-filled, anticlockwise (SP59); 20 inch × 4 leaf Commercial German without Bush (SP85)
H-Frame 41 mm	22 inch	22 inch × 4 leaf German PP glass-filled, anticlockwise (SP65); 22 inch × 4 leaf German ABS, anticlockwise (SP65)
H-Frame 44 mm	23 inch	23 inch × 4 leaf German PP glass-filled, anticlockwise (SP69)
H-Frame 51 mm	24 inch	24 inch × 4 leaf German PP glass-filled, anticlockwise (SP68)
H-Frame 61 mm	26 inch	26 inch × 4 leaf Commercial German without Bush (SP86)
H-Frame 65 mm	30 inch	30 inch × 3 leaf Commercial PP glass-filled, anticlockwise (SP57); 30 inch × 4 leaf Commercial PP glass-filled, anticlockwise (SP70); 30 inch × 5 leaf Commercial PP glass-filled, anticlockwise (SP79)
E-Frame 32 mm	17 / 17.5 inch	17 inch × 4 leaf Commercial 102° Angle ABS, anticlockwise (SP63); 17.5 inch × 4 leaf German PP glass-filled, anticlockwise (SP74)
E-Frame 35 mm	17 / 18.5 inch	17 inch × 4 leaf Commercial 115° Angle PP glass-filled, anticlockwise (SP61); 18.5 inch × 4 leaf Commercial Low Angle ABS, anticlockwise (SP73)
110 Dia 19 mm	16 / 18 inch	16 inch × 5 leaf ND (SP04); 18 inch × 3 leaf (SP11)
110 Dia 19 mm (low speed)	12 inch	12 inch × 4 leaf Commercial PP glass-filled, anticlockwise (SP71)
110 Dia 25 mm	15 / 16 / 18 / 20 inch	18 inch × 5 leaf ND (SP06); 20 inch × 5 leaf HV (SP07); 18 inch × 3 leaf Normal (SP12); 16 inch × 5 leaf FLAT Blade (SP22); 15 inch × 6 leaf Tower (SP30); 15 inch × 6 leaf Tower, anticlockwise (SP47)
110 Dia 28 mm	15 / 16 / 18 inch	18 inch × 5 leaf HV (SP05); 16 inch × 4 leaf Climatizer, clockwise (SP18); 16 inch × 4 leaf Climatizer, anticlockwise (SP19); 16 inch × 4 leaf H.S. (SP21); 18 inch × 5 leaf FLAT Blade (SP23); 16 inch × 6 leaf Tower (SP31); 18 inch × 3 leaf wide leaf (SP36); 15 inch × 4 leaf Curve Model, clockwise (SP49); 15 inch × 4 leaf Curve Model, anticlockwise (SP49B); 16 inch × 5 leaf Advance Model ABS (SP51); 16 inch × 5 leaf Advance Model glass-filled (SP51); 15 inch × 4 leaf Commercial German without Bush (SP81)
110 Dia 32 mm	15 / 16 / 17 / 18 / 20 inch	18 inch × 3 leaf Silencer (SP17); 18 inch × 4 leaf Climatizer, clockwise (SP20); 18 inch × 4 leaf Climatizer, anticlockwise (SP20B); 16 inch × 4 leaf THUNDER (36mm) (SP25); 18 inch × 4 leaf THUNDER (SP26); 18 inch × 6 leaf Tower (SP32); 20 inch × 3 leaf wide leaf (SP48); 17 inch × 4 leaf Curve Model, clockwise (SP50); 18 inch × 5 leaf Advance Model ABS (SP52); 15 inch × 4 leaf Exhaust, anticlockwise (SP55); 15 inch × 4 leaf Exhaust, clockwise (SP56); 16 inch × 4 leaf Exhaust PP, clockwise (SP64); 16 inch × 4 leaf German ABS, anticlockwise (SP66); 16 inch × 4 leaf German ABS, clockwise (SP67); 16 inch × 4 leaf Commercial German without Bush (SP82)
110 Dia 38 mm	17 / 17.5 / 18 inch	18 inch × 4 leaf Exhaust PP, anticlockwise (SP53); 18 inch × 4 leaf Exhaust PP glass-filled, anticlockwise (SP54); 17 inch × 4 leaf Commercial 102° Angle ABS, anticlockwise (SP63); 17.5 inch × 4 leaf German PP glass-filled, anticlockwise (SP74)
110 Dia 41 mm	17 inch	17 inch × 4 leaf Commercial 115° Angle PP glass-filled, anticlockwise (SP61)
100 Dia 22 mm	12 / 13 inch	12 inch × 3 leaf PP (SP10); 13 inch × 3 leaf Commercial ABS, clockwise (SP72)
89 Dia (all stacks)	9 inch	9 inch × 3 leaf High Speed Blade (SP27)
89 Dia 19 mm	11 inch	11 inch × 3 leaf High Speed Blade (SP29)
89 Dia 22 mm	12 / 16 inch	12 inch × 3 leaf High Speed Blade (SP28); 16 inch × 3 leaf H.S.F with bush (SP38); 16 inch × 3 leaf H.S.F without Bush (SP39)
89 Dia 1 inch (25 mm)	16 inch	16 inch × 3 leaf Wall (SP41)
89 Dia 1 inch (25 mm), CRC body	9 / 12 inch	9 inch × 3 leaf Silencer (SP13); 12 inch × 3 leaf High Speed Blade (SP28)
89 Dia 25 mm	11 inch	11 inch × 3 leaf Silencer (SP14)
89 Dia 1¼ inch (32 mm)	18 inch	18 inch × 3 leaf H.S.F with bush (SP40)
Kit motor 6 sut (19 mm)	9 / 12 inch	9 inch × 5 leaf (SP01); 12 inch × 5 leaf (SP02); 12 inch × 4 leaf A.P. (SP09)
Kit motor 1 inch (25 mm)	16 / 20 inch	16 inch × 4 leaf H.S. (SP21); 20 inch × 3 leaf wide leaf (SP48)
High-speed motor	9 / 12 inch	9 inch × 5 leaf (SP01); 12 inch × 5 leaf (SP02); 12 inch × 4 leaf A.P. (SP09)
Exhaust motor 1¼ inch (32 mm)	18 inch	18 inch × 4 leaf Exhaust PP, anticlockwise (SP53); 18 inch × 4 leaf Exhaust PP glass-filled, anticlockwise (SP54)

Reference codes are Speedo blade codes.

Full blade list by series

73 blades in 3, 4, 5 and 6 leaf, from 9 inch to 30 inch.

Photo	Ref. code	Size	Sweep	Leaves	Type and material	Rotation	Fits motor
5-Leaf series
	SP01	9 inch	230 mm	5	Standard	—	Kit motor 6 sut (19 mm), High-speed motor
	SP02	12 inch	300 mm	5	Standard	—	Kit motor 6 sut (19 mm), High-speed motor
	SP04	16 inch	400 mm	5	ND	—	110 Dia 19 mm
	SP06	18 inch	450 mm	5	ND	—	110 Dia 25 mm
	SP05	18 inch	450 mm	5	HV	—	110 Dia 28 mm
	SP07	20 inch	510 mm	5	HV	—	110 Dia 25 mm
Silencer series
	SP13	9 inch	230 mm	3	Silencer	—	89 Dia 1 inch (25 mm), CRC body
	SP14	11 inch	280 mm	3	Silencer	—	89 Dia 25 mm
	SP16	16 inch	—	3	Silencer	—	—
	SP17	18 inch	450 mm	3	Silencer	—	110 Dia 32 mm
	SP11	18 inch	450 mm	3	Standard	—	110 Dia 19 mm
	SP12	18 inch	450 mm	3	Normal	—	110 Dia 25 mm
Climatizer series
	SP18	16 inch	380 mm	4	Climatizer	Clockwise	110 Dia 28 mm
	SP19	16 inch	380 mm	4	Climatizer	Anticlockwise	110 Dia 28 mm
	SP20	18 inch	440 mm	4	Climatizer	Clockwise	110 Dia 32 mm
	SP20B	18 inch	440 mm	4	Climatizer	Anticlockwise	110 Dia 32 mm
	SP21	16 inch	390 mm	4	H.S.	—	110 Dia 28 mm, Kit motor 1 inch (25 mm)
Flat series
	SP22	16 inch	400 mm	5	FLAT Blade	—	110 Dia 25 mm
	SP23	18 inch	450 mm	5	FLAT Blade	—	110 Dia 28 mm
Thunder series
	SP25	16 inch	390 mm	4	THUNDER (36mm)	—	110 Dia 32 mm
	SP26	18 inch	440 mm	4	THUNDER	—	110 Dia 32 mm
3-Leaf High Speed series
	SP27	9 inch	230 mm	3	High Speed Blade	—	89 Dia (all stacks)
	SP28	12 inch	290 mm	3	High Speed Blade	—	89 Dia 22 mm
	SP28	12 inch	300 mm	3	High Speed Blade	—	89 Dia 1 inch (25 mm), CRC body
	SP29	11 inch	280 mm	3	High Speed Blade	—	89 Dia 19 mm
	SP10	12 inch	300 mm	3	PP	—	100 Dia 22 mm
	SP72	13 inch	320 mm	3	Commercial ABS	Clockwise	100 Dia 22 mm
Tower series
	SP30	15 inch	350 mm	6	Tower	—	110 Dia 25 mm
	SP31	16 inch	380 mm	6	Tower	—	110 Dia 28 mm
	SP32	18 inch	430 mm	6	Tower	—	110 Dia 32 mm
	SP47	15 inch	350 mm	6	Tower	Anticlockwise	110 Dia 25 mm
4-Leaf series
	SP09	12 inch	280 mm	4	A.P.	—	Kit motor 6 sut (19 mm), High-speed motor
	SP71	12 inch	300 mm	4	Commercial PP glass-filled	Anticlockwise	110 Dia 19 mm (low speed)
3-Leaf Wide series
	SP36	18 inch	450 mm	3	wide leaf	—	110 Dia 28 mm
	SP48	20 inch	510 mm	3	wide leaf	—	110 Dia 32 mm, Kit motor 1 inch (25 mm)
Bullet Fan series
	SP38	16 inch	390 mm	3	H.S.F with bush	—	89 Dia 22 mm
	SP39	16 inch	390 mm	3	H.S.F without Bush	—	89 Dia 22 mm
	SP40	18 inch	440 mm	3	H.S.F with bush	—	89 Dia 1¼ inch (32 mm)
Curve Model series
	SP49	15 inch	370 mm	4	Curve Model	Clockwise	110 Dia 28 mm
	SP49B	15 inch	370 mm	4	Curve Model	Anticlockwise	110 Dia 28 mm
	SP50	17 inch	420 mm	4	Curve Model	Clockwise	110 Dia 32 mm
Advance Model series
	SP51	16 inch	400 mm	5	Advance Model ABS	—	110 Dia 28 mm
	SP51	16 inch	400 mm	5	Advance Model glass-filled	—	110 Dia 28 mm
	SP52	18 inch	440 mm	5	Advance Model ABS	—	110 Dia 32 mm
Exhaust Model series
	SP53	18 inch	425 mm	4	Exhaust PP	Anticlockwise	Exhaust motor 1¼ inch (32 mm), 110 Dia 38 mm
	SP54	18 inch	425 mm	4	Exhaust PP glass-filled	Anticlockwise	Exhaust motor 1¼ inch (32 mm), 110 Dia 38 mm
	SP55	15 inch	385 mm	4	Exhaust	Anticlockwise	110 Dia 32 mm
	SP56	15 inch	385 mm	4	Exhaust	Clockwise	110 Dia 32 mm
	SP64	16 inch	385 mm	4	Exhaust PP	Clockwise	110 Dia 32 mm
Wall Fan Model series
	SP41	16 inch	390 mm	3	Wall	—	89 Dia 1 inch (25 mm)
Commercial Model series
	SP57	30 inch	760 mm	3	Commercial PP glass-filled	Anticlockwise	H-Frame 65 mm
	SP70	30 inch	760 mm	4	Commercial PP glass-filled	Anticlockwise	H-Frame 65 mm
	SP79	30 inch	760 mm	5	Commercial PP glass-filled	Anticlockwise	H-Frame 65 mm
	SP58	20 inch	470 mm	4	Commercial 112° Angle PP glass-filled	Anticlockwise	H-Frame 35 mm
	SP59	20 inch	470 mm	4	Commercial 120° Angle PP glass-filled	Anticlockwise	H-Frame 38 mm
	SP60	20 inch	470 mm	4	Commercial 108° Angle ABS	Anticlockwise	H-Frame 32 mm
	SP61	17 inch	430 mm	4	Commercial 115° Angle PP glass-filled	Anticlockwise	110 Dia 41 mm, E-Frame 35 mm
	SP63	17 inch	430 mm	4	Commercial 102° Angle ABS	Anticlockwise	110 Dia 38 mm, E-Frame 32 mm
	SP73	18.5 inch	460 mm	4	Commercial Low Angle ABS	Anticlockwise	E-Frame 35 mm
German Model series
	SP62	20 inch	470 mm	4	German PP	Anticlockwise	H-Frame 32 mm
	SP62	20 inch	470 mm	4	German PP glass-filled	Anticlockwise	H-Frame 32 mm
	SP65	22 inch	508 mm	4	German PP glass-filled	Anticlockwise	H-Frame 41 mm
	SP65	22 inch	508 mm	4	German ABS	Anticlockwise	H-Frame 41 mm
	SP68	24 inch	560 mm	4	German PP glass-filled	Anticlockwise	H-Frame 51 mm
	SP69	23 inch	570 mm	4	German PP glass-filled	Anticlockwise	H-Frame 44 mm
	SP66	16 inch	400 mm	4	German ABS	Anticlockwise	110 Dia 32 mm
	SP67	16 inch	400 mm	4	German ABS	Clockwise	110 Dia 32 mm
	SP74	17.5 inch	438 mm	4	German PP glass-filled	Anticlockwise	110 Dia 38 mm, E-Frame 32 mm
German Model Without Bush series
	SP81	15 inch	380 mm	4	Commercial German without Bush	—	110 Dia 28 mm
	SP82	16 inch	400 mm	4	Commercial German without Bush	—	110 Dia 32 mm
	SP84	18.5 inch	—	4	Commercial German without Bush	—	H-Frame 32 mm
	SP85	20 inch	—	4	Commercial German without Bush	—	H-Frame 38 mm
	SP86	26 inch	610 mm	4	Commercial German without Bush	—	H-Frame 61 mm

Blades and blade photos: Speedo fan blades, which we supply with our motors as a Speedo dealer. Speedo is the brand of its owner. Line drawings on this page are by NEXPOWER.

Five checks before you fit a blade

Shaft and bore. Measure the shaft: 19, 22, 25 or 32 mm. A loose bore wobbles and eats the bush.
Rotation. Check the arrow on the motor label. A clockwise blade on an anticlockwise motor gives almost no air.
Stack for the size. As the blade grows, the stack must grow: 110 Dia 19 mm for 16 inch light blades, 28 mm for 16 to 18 inch, 32 mm for 18 inch heavy, H-Frame for 20 inch and above.
Current under load. With pads wet and the cooler closed, the running current must stay within the nameplate amperes.
Balance. Spin the blade by hand. If it always stops at the same point, it is out of balance and will damage the bearing or bush.

कौन से कूलर में कौन सा ब्लेड

छोटे पर्सनल कूलर में 89 Dia मोटर पर 9 से 12 इंच का 3 पत्ती ब्लेड लगता है। विंडो और डेजर्ट कूलर में 110 Dia मोटर पर 16 से 18 इंच का ब्लेड चलता है: 28 mm स्टैक पर 16 इंच, 32 mm स्टैक पर 18 इंच। बड़े और कमर्शियल कूलर में H-Frame मोटर पर 20 इंच या उससे बड़ा 4 पत्ती ब्लेड लगता है।

ब्लेड बड़ा करने से पहले मोटर का स्टैक बढ़ाइए, नहीं तो मोटर ज़्यादा करंट लेगी और वाइंडिंग जल जाएगी। सही जोड़ी के लिए हमारे Technical Head से फ्री में बात करें।

Blade and motor questions

Which fan blade fits an H-Frame 32 mm cooler motor?

A 20 inch, 4 leaf commercial blade (about 470 mm sweep) is the usual fit for an H-Frame 32 mm motor. The H-Frame 35 mm and 38 mm motors take the same 20 inch size with a steeper blade angle.

Which blade is used on a 110 Dia 28 mm cooler motor?

A 110 Dia 28 mm motor normally runs a 16 inch blade (380 to 400 mm), or an 18 inch light 5 leaf or 3 leaf blade (450 mm). Keep heavier 18 inch blades for the 110 Dia 32 mm motor.

What does 18*3 mean on a cooler fan blade?

The first number is the blade size in inches across the full sweep, and the second is the number of leaves. An 18*3 blade is an 18 inch blade with 3 leaves, about 450 mm across.

What is the difference between C/W and A/C fan blades?

C/W is a clockwise blade and A/C is an anticlockwise blade. The blade must match the direction the motor shaft turns, otherwise the cooler throws very little air even though the motor runs.

Can I fit a bigger blade to get more air?

Only if the motor has the stack for it. A bigger or steeper blade raises the load, the current goes above the nameplate value and the winding overheats. Move up a stack size instead, for example from 110 Dia 28 mm to 32 mm.

Which blade fits an 89 Dia Bachcha motor?

The 89 Dia motor takes light 3 leaf blades from 9 to 12 inch (230 to 300 mm). Bullet type 16 inch blades are used only on the 89 Dia 22 mm motor.

PP, glass-filled or ABS: which blade material is better?

PP is light and economical for small coolers. Glass-filled PP is stiffer and holds its shape in heat, which suits 17 inch and larger commercial blades. ABS gives a smooth finish and good balance on mid-size blades.

How do I know the blade is not overloading the motor?

Run the cooler with pads and water on, then check the current with a clamp meter at full speed. It should stay at or below the ampere value on the motor nameplate. If it is higher, the blade is too big or too steep for that motor.