Compact Cylinder, Non-Rotating Rod Type, Double Acting, Single Rod CQSK Series

Brand :

SMC

Caution

See catalog for specification details.
Product pictures are representations. CAD data is not supported for some model numbers.

Product Description

CQSK series that is ideal for machine designs with small space requirements.
[Features]
· Square body shape that gives you flexibility for designing machines.
· Auto switch mounting direction allows for flexible design requirements.
· 2-way basic mounting.
· Non-rotating rod with high non-rotating accuracy.

Compact Cylinder, Non-Rotating Rod Type, Double Acting, Single Rod CQSK Series Specifications

Model Number Notation

Standard specification

Tube Internal Diameter (mm)	12	16	20	25
Operating method	Double acting, single rod
Applicable fluids	Air
Lubrication	Not required (non-lube)
Proof pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Minimum operating pressure	0.07 MPa		0.05 MPa
Ambient and working fluid temperature	Without auto switch: -10°C to +70°C (No freezing)
Ambient and working fluid temperature	With auto switch: -10°C to +60°C (No freezing)
Cushioning	None
Rod-end thread	Female thread
Stroke length tolerance	+1.0 mm 0
Operating piston speed	50 to 500 mm/s
Allowable kinetic energy J	0.022	0.038	0.055	0.09
Rod non-rotating accuracy	±1°		±0.7°

Theoretical Output List

(N)

Bore size (mm)	Rod width across flats (mm)	Operating method	Piston area (mm²)	Operating pressure (MPa)
Bore size (mm)	Rod width across flats (mm)	Operating method	Piston area (mm²)	0.3	0.5	0.7
12	5.2	IN	90	27	45	63
12	5.2	OUT	113	34	57	79
16	6.2	IN	168	50	84	117
16	6.2	OUT	201	60	101	141
20	8.2	IN	256	77	128	179
20	8.2	OUT	314	94	157	220
25	10.2	IN	401	120	200	281
25	10.2	OUT	491	147	245	344

Weight List / Without Auto Switch

(g)

Bore size (mm)	Cylinder stroke (mm)
Bore size (mm)	5	10	15	20	25	30	35	40	45	50
12	39	46	53	60	67	74	-	-	-	-
16	52	61	69	78	86	95	-	-	-	-
20	89	102	116	129	143	156	170	183	197	211
25	124	141	157	174	190	207	224	240	257	273

Weight List / With Auto Switch (Built-in Magnet)

(g)

Bore size (mm)	Cylinder stroke (mm)
Bore size (mm)	5	10	15	20	25	30	35	40	45	50
12	47	54	62	69	76	83	-	-	-	-
16	63	71	80	88	97	106	-	-	-	-
20	122	136	149	163	176	190	203	217	230	244
25	168	185	201	218	235	251	268	284	301	317

Structural drawing examples

Standard ø12 (12‑mm bore size)

With auto switch and built-in magnet ø12 (12‑mm bore size)

Component Parts

Number	Part name	Material	Note
1	Cylinder tube	Aluminum Alloy	Hard Anodize
2	Rod Cover	Aluminum Alloy	Anodized
3	Piston	Aluminum Alloy	-
4	Piston rod	Stainless steel	-
5	Spacer for switch type	Aluminum Alloy	Chromate
6	Magnet	-	-
7	Non-rotating guide	Oil-impregnated sintered alloy	ø16 (16‑mm diameter), ø20 (20‑mm diameter), ø25 (25‑mm diameter)
8	Hexagon socket head bolt	Alloy steel	Nickel plating
9	Flat washer	Rolled steel	Nickel plating
10	Rod-end nut	Carbon steel	Zinc chromate
11	Centering location ring	Aluminum Alloy	Anodized
12	Rod Gasket	NBR	-
13	Piston Gasket	NBR	-
14	Tube gasket	NBR	-

Compact Cylinder, Non-Rotating Rod Type, Double Acting, Single Rod CQSK Series Example Dimensions

(Unit: mm)

Standard type (through-hole / both ends tapped common): ø12 (12‑mm bore size) dimensional drawing

(Unit: mm)

Standard type (through-hole / both ends tapped common): ø16 (16‑mm bore size) dimensional drawing

Standard type (through-hole / both ends tapped common): ø20 (20‑mm bore size) / ø25 (25 mm bore size) dimensional drawing

Bore size (mm)	Stroke range (mm)	Without auto switch		With auto switch		C	E	F	H	I	K	L	M	N	OA	OB	Q	RA	RB	T
Bore size (mm)	Stroke range (mm)	A	B	A	B	C	E	F	H	I	K	L	M	N	OA	OB	Q	RA	RB	T
12	5 to 30	25.5	22	30.5	27	6	25	5	M3 × 0.5	32	5.2	3.5	15.5	3.5	M4 × 0.7	6.5	12.5	7	4	0.5
16	5 to 30	25.5	22	30.5	27	8	29	5	M4 × 0.7	38	6.2	3.5	20	3.5	M4 × 0.7	6.5	12.5	7	4	0.5
20	5 to 50	29	24.5	39	34.5	7	36	5.5	M5 × 0.8	47	8.2	4.5	25.5	5.4	M6 × 1.0	9	13	10	7	1
25	5 to 50	32.5	27.5	42.5	37.5	12	40	5.5	M6 × 1.0	52	10.2	5	28	5.4	M6 × 1.0	9	14	10	7	1

Note) For the following bore/stroke sizes, the through-hole is threaded: Standard type: ø12 (12‑mm bore size), ø16 (16‑mm bore size) 5 stroke.
Standard type: ø20 (20‑mm bore size) 5 to 15 stroke.
Standard type: ø25 (25‑mm bore size) 5 and 10 stroke.
With auto switch and built-in magnet: ø20 (20‑mm bore size) 5 stroke.