Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series

Brand :

SMC

Caution

Refer to the catalog for product specifications.
Product pictures are representations. CAD data is not supported by some of the model numbers.

Product Description

The CY3B series is the basic type of the Magnetically Coupled Rodless Cylinder with improved bearing performance.
[Features]
· A good lubrication film is formed on the outer peripheral surface of the cylinder tube for improved durability.
· Reduced sliding resistance.

Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series Details

Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series, product image

Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series Specifications

Tube inner diameter (mm)	6	10	15	20	25	32	40	50	63
Usable fluids	Air
Guaranteed pressure resistance	1.05 MPa
Maximum operating pressure	0.7 MPa
Minimum operating pressure	0.16	0.16	0.16	0.16	0.15	0.14	0.12	0.12	0.12
Ambient temperature and working fluid temperature	-10 to 60°C (however, no freezing)
Operating piston speed	50 to 500 mm/s
Cushion	Rubber cushion
Lubrication	Not required (lubrication-free)
Allowable difference of stroke length (mm)	0 to 250 st: (0 to +1.0), 251 to 1,000 st: (0 to +1.4), 1,001 st and above: (0 to +1.8)
Mounting orientation	Horizontal, slanted, vertical^Note)
Mounting nuts (2 nuts)	Standard equipment (accessories)
Magnetic retention force (N)	19.6	53.9	137	231	363	588	922	1,471	2,256

Note: When mounting vertically, intermediate stopping using an air pressure circuit cannot be done.

Model number indication method

Model number example

Standard stroke table

Tube inner diameter (mm)	Standard stroke (mm)	Manufacturable Maximum stroke (mm)
6	50, 100, 150 and 200	300
10	50, 100, 150, 200, 250 and 300	500
15	50, 100, 150, 200, 250, 300, 350 400, 450, 500	1,000
20	100, 150, 200, 250, 300, 350, 400, 450 500, 600, 700, 800	1,500
25		3,000
32		3,000
40	100, 150, 200, 250, 300, 350, 400, 450 500, 600, 700, 800, 900, 1,000	3,000
50		5,000
63		5,000

*Long stroke type (XB11) when the stroke exceeds 2,000 st.
*The longer the stroke, the larger the amount of deflection in the cylinder tube. Pay attention to the mounting bracket and clearance value.
*Intermediate stroke can be adjusted in 1‑mm increments.

Structural Drawing

Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series, structural drawing

Components

Number	Part name	Materials		Additional notes
1	Body	Aluminum alloy		Hard anodized aluminum
2	Head cover	ø6 (diameter 6 mm), ø10 (diameter 10 mm)	Brass	-
2	Head cover	ø15 (diameter 15 mm) to ø63 (diameter 63 mm)	Aluminum alloy	-
3	End collar	Aluminum alloy		ø20 to 40 (diameter 20 to 40 mm) only
4	Cylinder tube	Stainless steel		-
5	Piston	ø6 (diameter 6 mm)	Brass	ø6 (diameter 6 mm)	Electroless Ni plating
5	Piston	ø10 to 63 (diameter 10 to 63 mm)	Aluminum alloy	ø10 to 63 (diameter 10 to 63 mm)	Chromate
6	Shaft	Stainless steel		-
7	Piston-side yoke	Rolled steel		Zinc chromate
8	External moving element side yoke	Rolled steel		Zinc chromate
9	Magnet A	-		-
10	Magnet B	-		-
11	Spacer	Aluminum alloy		No ø6 (diameter 6 mm)
12	Damper	Urethane rubber		-
13	Piston nut	Carbon steel		No ø6 to 15 (diameter 6 to 15 mm)
14	C-type retaining ring for hole	Carbon tool steel		Phosphate coated
15	Wear ring A	Special resin		-
16	Wear ring B	Special resin		-
17	Piston packing	NBR		-
18	Lub-retainer	Special resin		No ø6 (diameter 6 mm)
19	Cylinder tube gasket	NBR		ø6 (diameter 6 mm) and ø10 (diameter 10 mm) only

Magnetically Coupled Rodless Cylinder, Basic Type, CY3B Series, example dimensions

Basic type CY3B6 to CY3B63, dimensional drawing

Note 1: ø50 (diameter 50 mm) and ø63 (diameter 63 mm) are L (-0.2 to 0).

(Unit: mm)

Model	A	B	C	CC	D	E	F	G	H	I	J	K	L
CY3B6	4	17	8^*	-	7.6	4	8^*	5	13.5^*	-	4.5	5	35
CY3B10	4	25	14	-	12	1.5	9	5	12.5	-	4.5	4	38
CY3B15	4	35	14	-	16.6^*	2	10	5.5	13	-	6	11	57
CY3B20	8	36	26	-	21.6^*	2^*	13	7.5^*	20	28	6	8	66
CY3B25	8	46	32	-	26.4^*	2^*	13	7.5^*	20.5	34	8	10	70
CY3B32	8	60	32	-	33.6^*	2^*	16	8^*	22	40	8	15	80
CY3B40	10	70	41	-	41.6^*	3^*	16	11	29	50	10	16	92
CY3B50	-	86	-	32	52.4^*	8	2	14	33	58^*	12	25	110
CY3B63	-	100	-	38	65.4^*	8	2	14	33	72^*	12	26	122

Model	MM	N	NA	NN	Q	R	S	T	V
CY3B6	M3 × 0.5	9.5^*	10^*	M6 × 1^*	-	-	62^*	6.5	-
CY3B10	M3 × 0.5	11	14	M10 × 1	-	-	63	7.5	-
CY3B15	M4 × 0.7	11	17	M10 × 1	-	-	83	8	-
CY3B20	M4 × 0.7	18^*	24	M20 × 1.5	-	12^*	106	10	-
CY3B25	M5 × 0.8	18.5^*	30	M26 × 1.5	-	15^*	111	10	-
CY3B32	M6 × 1	20^*	36	M26 × 1.5	-	18^*	124	13	-
CY3B40	M6 × 1	26^*	46	M32 × 2	-	23^*	150	13	-
CY3B50	M8 × 1.25	25	55	-	30 (-0.037 to -0.007)	27.5^*	176	-	M8 × 1.25
CY3B63	M8 × 1.25	25	69	-	32 (-0.043 to -0.007)	34.5^*	188	-	M10 × 1.5

(Unit: mm)

Model	W	X	Y	ZZ	P (piping port)
Model	W	X	Y	ZZ	No mark	TN^*	TF^*
CY3B6	25	10	-	78^*	M3 × 0.5^*	-	-
CY3B10	30	16	-	81	M5 × 0.8	-	-
CY3B15	35	19	-	103	M5 × 0.8	-	-
CY3B20	50	25	-	132	Rc 1/8	NPT1/8	G1/8
CY3B25	50	30	-	137	Rc 1/8	NPT1/8	G1/8
CY3B32	50	40	-	156	Rc 1/8	NPT1/8	G1/8
CY3B40	60	40	-	182	Rc 1/4	NPT1/4	G1/4
CY3B50	60	60	16	180	Rc 1/4	NPT1/4	G1/4
CY3B63	70	70	16	192	Rc 1/4	NPT1/4	G1/4

Note 2: Dimensions marked with "*" are different from the CY1B series.
Note 3: Mounting nuts can be screwed on only for the effective thread length of the head cover (T dimension). When mounting a cylinder, consider the thickness of flange, etc.