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SCT series Multi-Position Pneumatic Cylinders

SCT series Multi-Position Pneumatic Cylinders 3

SCT series Multi-Position Pneumatic Cylinders 2

SCT/SUT series Multi-Position Pneumatic Cylinders

High-Quality Sealing Ring: 10-Million-Cycle Lifespan.
Features a 6-layer sealing ring that remains leak-free under an air pressure of 1.4 MPa.
Thickened end caps and tie-rod design ensure strong load-bearing capacity.
Bi-directional POM guide ring: offers strong support and excellent wear resistance.
The inner wall of the cylinder barrel undergoes a triple precision grinding and polishing process, reducing the friction resistance value to as low as 0.04.
The piston rod is made of 45# medium-carbon steel, featuring a precision-ground and chrome-plated finish, with a friction coefficient of 0.02.

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The SCT cylinder is an AirTAC-standard, double-acting, multi-position cylinder (also commonly referred to as the SUT dual-stroke or booster cylinder).

It consists of two SC standard cylinders connected in series, enabling a two-stage stroke and multiple positioning points.

Features:

Multi-position: The piston rod can achieve three stop positions (original length, first stroke segment, and full stroke).
Double-Force Output: When both pistons are simultaneously supplied with air, the thrust is approximately twice that of a single-stage unit.
Structurally Reliable: Tie-rod design ensures a secure connection between the front and rear covers and the cylinder body.

Product Technical Specifications

Bore diameter (mm)	32	40	50	63	80	100
Action Form	Double-acting, Multi-position Type
Working Medium	Clean air (filtered through a screen with a mesh size of 40 µm or larger)
Fixed Installation Configuration	FA,FB,CA,B,LB
Operating Pressure Range	0.15~1.0Mpa（22~145Psi）（1.5~10.0bar）
Guaranteed Pressure Resistance	1.5Mpa（215psi）（15bar）
Operating Temperature Range	-20°C~70°C （Sealing materials are customizable and replaceable, with an operating temperature range extending up to +250°C.）
Operating Speed Range	30~800 mm/s
Travel Tolerance Range	（0~250 +1.0）（250~1000 +1.5）（1001~1500 +2.0）
Buffering Form	Adjustable Cushioning (Air Cushioning)
Cushion Stroke	21mm				28mm	29mm
Connection Thread Diameter	PT1/8	PT1/4		PT3/8		PT1/2
Piston Rod Connection Accessories	I: I-Type Joint U: Fish-Eye Joint Y: Y-Type Joint F: Floating Joint
Compatible with Magnetic Switches	CS1-G ，DMSG，CS1-U，CS1-F，

Note: Connecting pipe threads are available in NPT and G thread options.

Standard Travel Range

Bore diameter (mm)	Standard Travel Stroke（mm）	Maximum Travel	Permissible Travel
32	25.50.75.80.100.125.150.160.175.200.250.300.350.400.450.500	500	800
40
50
63
80
100

Note: If the stroke is ≥ 800 mm, it will be treated as a non-standard item. For other special stroke lengths, please contact Wenzhou Maifeng Pneumatic Co., Ltd. (MYFEQD).

Cylinder Theoretical Output Table （Unit: N）

The force output chart for pneumatic cylinders constitutes one of the critical elements in the cylinder selection process, enabling the calculation of the required load force.

Multiplying the output force of a pneumatic cylinder by a factor of 0.5 to 0.7 yields the cylinder’s effective load force.

Bore diameter (mm)	Piston Rod Outer Diameter	Mode of Action		Compression Area（mm²）	0.1Mpa	0.2Mpa	0.3Mpa	0.4Mpa	0.5Mpa	0.6Mpa	0.7Mpa	0.8Mpa	0.9Mpa
32	12	Double-acting type	Load Testing	804	160.08	321.6	482.4	643.2	804	964.8	1125.6	1286.4	1447.2
32	12		Tensile Testing	690	138	276	414	552	690	828	966	1104	1242
40	16		Load Testing	1256	251.2	502.4	753.6	1004.8	1256	1507.2	1758.4	2009.6	2260.8
40	16		Tensile Testing	1055	211	422	633	844	1055	1266	1477	1688	1899
50	20		Load Testing	1963	392.6	785.2	1177.8	1570.4	1963	2355.6	2748.2	3140.8	3533.4
50	20		Tensile Testing	1649	329.8	659.6	989.4	1319.2	1649	1978.8	2308.6	2638.4	2968.2
63	20		Load Testing	3117	623.4	1246.8	1870.2	2493.6	3117	3740.4	4363.8	4987.2	5610.6
63	20		Tensile Testing	2803	560.6	1121.2	1681.8	2242.4	2803	3363.6	3924.2	4484.8	5045.4
80	25		Load Testing	5026	1005.2	2010.4	3015.6	4020.8	5026	6031.2	7036.4	8041.6	9046.8
80	25		Tensile Testing	4536	907.2	1814.4	2721.6	3628.8	4536	5443.2	6350.4	7257.6	8164.8
100	25		Load Testing	7853	1570.6	3141.2	4711.8	6282.4	7853	9423.6	10994.2	1256.8	14135.4
100	25		Tensile Testing	7362	1472.4	2944.8	4417.2	5889.6	7362	8834.4	10306.8	11779.2	13251.6

Finished Product Order Code

Materials of Main Components

SCT/SUT series Multi-Position Pneumatic Cylinders

Spare Part Name	Material	Spare Part Name	Material
Nut	Carbon Steel	magnet	Plastic Parts
Piston Rod	45# Steel Hard Chrome-Plated and Ground Rod	Buffer O-ring	NBR
Front Cover O-ring	TPU	Pipe Wall O-ring	NBR
Bushing	Wear-resistant materials	Connection Base	Aluminum Alloy
Front Cover	Aluminum Alloy	Piston	Aluminum Alloy
Buffer Seal	TPU	Hex Socket Screw	Carbon Steel
Cylinder Block	Aluminum Alloy Profiles	Back Cover	Aluminum Alloy
O-ring	NBR	Pillar	Carbon Steel
Piston O-ring	NBR	Pillar Nut	Carbon Steel
Wear Pad	Wear-resistant materials

Product size information

Bore / Symbol	A	AB	AC	AD	AE	AF	AG	B	D	DA	E	EA	F	FA	H	K	KA	KB	M	MA	P	PA	PB
32	233	47	186	27.5	27.5	55	38	45	12	32	M10*1.25	22	17	6	10	M6*1.0	14.5	33	28	15	PT1/8	14	5.5
40	235	49	186	27.5	27.5	55	38	50	16	34	M12*1.25	24	17	7	13	M6*1.0	14.5	37	32	15	PT1/4	15	6
50	243	57	186	27.5	27.5	55	38	62	20	42	M16*1.5	32	23	8	17	M6*1.0	14.5	47	38	15	PT1/4	17	8.5
63	249	57	192	27.5	27.5	55	41	75	20	42	M16*1.5	32	23	8	17	M8*1.25	14.5	56	38	15	PT3/8	15	9.5
80	296	75	221	33	33	73	41	94	25	54	M20*1.5	40	26	10	22	M10*1.5	17	70	47	21	PT3/8	19.5	10
100	308	75	233	33	33	73	47	112	25	54	M20*1.5	40	26	10	22	M10*1.5	17	84	47	21	PT1/2	16.5	11