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Xi Lanh Khí Nén SMC CQS Series – CQSB20 – CDQSB12 – CDQSB16 – CDQSB20 – CDQSB25
Compact Cylinder, Standard Type, Double Acting, Single Rod CQS Series Details 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, Standard Type, Double Acting, Single Rod CQS Series product image
Compact Cylinder, Standard Type, Double Acting, Single Rod CQS Series Specifications
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) | ||||
With auto switch: -10°C to 60°C (No freezing) | |||||
Cushioning | None, rubber bumper* | ||||
Rod-end thread | Female thread | ||||
Stroke length tolerance | Standard stroke: (0 to +1.0 mm) Long stroke: (0 to +1.4 mm)* | ||||
Operating piston speed | 50 to 500 mm/s | ||||
Allowable kinetic energy J | Standard type | 0.022 | 0.038 | 0.055 | 0.09 |
With rubber bumper | 0.043 | 0.075 | 0.11 | 0.18 |
- *Stroke length tolerance does not include the amount of bumper change.
- *Only rubber bumper is available for the long stroke type.
Model Number Notation
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Model number example
Individual Made-to-Order Specifications
Indicator symbol | Specifications/contents |
---|---|
-X271 | Fluororubber seals |
-X525 | Long stroke of adjustable extension stroke cylinder (-XC8) |
-X526 | Long stroke of adjustable extension stroke cylinder (-XC9) |
-X1876 | With concave shape end boss on the cylinder tube head side |
Made to order specifications
Indicator symbol | Specifications/contents |
---|---|
-XB6 | Heat-resistant cylinder (-10 to 150°C) without an auto switch |
-XB7 | Cold-resistant cylinder (-40 to 70°C) without an auto switch |
-XB9 | Low speed cylinder (10 to 50 mm/s) |
-XB10 | Intermediate stroke (using exclusive body) |
-XB13 | Low speed cylinder (5 to 50 mm/s) |
-XC6 | Piston rod, retaining ring, rod-end nut made of stainless steel |
-XC8 | Adjustable stroke cylinder / Adjustable extension type |
-XC9 | Adjustable stroke cylinder / Adjustable retraction type |
-XC36 | With boss on rod side |
-XC85 | Grease for food processing equipment |
-XC92 | Dust-resistant actuator |
Structural drawing
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Compact Cylinder, Standard Type, Double Acting, Single Rod CQS Series Structural Drawing
Xi Lanh Khí Nén SMC CQS Series – CQSB20 – CDQSB12 – CDQSB16 – CDQSB20 – CDQSB25
Component Parts
Number | Part name | Material | Note |
---|---|---|---|
1 | Cylinder tube | Aluminum Alloy | Hard Anodize |
2 | Collar | Aluminum Alloy | Anodized |
3 | Piston | Aluminum Alloy | – |
4 | Piston rod | Stainless steel | – |
5 | Retaining Ring | Carbon tool steel | Phosphate coated |
6 | Rod-end nut | Carbon steel | Zinc chromate |
7 | Spacer for switch type | Aluminum Alloy | Chromate |
8 | Bumper A | Urethane | – |
9 | Damper B | Urethane | – |
10 | Bottom plate | Aluminum Alloy | Anodized |
11 | Collar | Aluminum Alloy | Anodized |
12 | Bushing | Oil-impregnated sintered alloy | – |
13 | Wear ring | Resin | – |
14 | Magnet | – | – |
15 | Centering location ring | Aluminum Alloy | Anodized |
*16 | Rod Gasket | NBR | – |
*17 | Piston Gasket | NBR | – |
*18 | Tube gasket | NBR | – |
Replacement Parts: Seal Kit (Basic Type)
Tube Internal Diameter (mm) | Order number | Content |
---|---|---|
12 | CQSB12-PS | Seal kit includes (16), (17) and (18) |
16 | CQSB16-PS | |
20 | CQSB20-PS | |
25 | CQSB25-PS |
Replacement Parts: Seal Kit (Long Stroke)
Tube Internal Diameter (mm) | Order number | Content |
---|---|---|
12 | CQSB12-L-PS | Seal kit includes (16), (17) and (18) |
16 | CQSB16-L-PS | |
20 | CQSB20-L-PS | |
25 | CQSB25-L-PS |
- *Seal kit includes (16), (17) and (18). Order the seal kit based on each bore size. (The long stroke type includes 2 tube gaskets)
- *Since the seal kit does not include a grease pack, order it separately.
Grease pack part number: GR-S-010 (10 g)
Compact Cylinder, Standard Type, Double Acting, Single Rod CQS Series Example Dimensions

Standard type (through-hole / both ends tapped common): CQSB/CDQSB dimensional drawing
Male rod end
(Unit: mm)
Bore size (mm) |
B1 | C1 | H1 | Standard stroke | Long stroke | MM | X |
---|---|---|---|---|---|---|---|
L1 | L1 | ||||||
12 | 8 | 9 | 4 | 14 | 24 | M5 × 0.8 | 10.5 |
16 | 10 | 10 | 5 | 15.5 | 25.5 | M6 × 1.0 | 12 |
20 | 13 | 12 | 5 | 18.5 | 28.5 | M8 × 1.25 | 14 |
25 | 17 | 15 | 6 | 22.5 | 32.5 | M10 × 1.25 | 17.5 |
With Boss on Head End
(Unit: mm)
Bore size (mm) |
G | Th9 |
---|---|---|
12 | 1.5 | 15 (-0.043 to 0) |
16 | 1.5 | 20 (-0.052 to 0) |
20 | 2 | 13 (-0.043 to 0) |
25 | 2 | 15 (-0.043 to 0) |
- *The product with boss on head end is applicable only to standard stroke.
- *With boss on rod end: option. (Suffix -XC36 to the end of the part number.) Note that only bore sizes ø12 (12‑mm diameter) and ø16 (16‑mm diameter) are applicable to the long stroke.
Standard type
(Unit: mm)
Bore size (mm) |
Standard stroke range (mm) |
Standard stroke | Long stroke range (mm) |
Long stroke | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Without auto switch | With auto switch | With/without auto switch | ||||||||||||
A | B | F | L | A | B | F | L | A | B | F | L | |||
12 | 5 to 30 | 20.5 | 17 | 5 | 3.5 | 25.5 | 22 | 5 | 3.5 | 35 to 200 | 45.5 | 32 | 7.5 | 13.5 |
16 | 5 to 30 | 20.5 | 17 | 5 | 3.5 | 25.5 | 22 | 5 | 3.5 | 35 to 200 | 45.5 | 32 | 7.5 | 13.5 |
20 | 5 to 50 | 24 | 19.5 | 5.5 | 4.5 | 34 | 29.5 | 5.5 | 4.5 | 75 to 200 | 55.5 | 41 | 8 | 14.5 |
25 | 5 to 50 | 27.5 | 22.5 | 5.5 | 5 | 37.5 | 32.5 | 5.5 | 5 | 75 to 300 | 59 | 44 | 9 | 15 |
(Unit: mm)
Bore size (mm) |
C | D | E | H | I | K | M | N | OA | OB | Q | RA | RB | T |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
12 | 6 | 6 | 25 | M3 × 0.5 | 32 | 5 | 15.5 | 3.5 | M4 × 0.7 | 6.5 | 7.5 | 7 | 4 | 0.5 |
16 | 8 | 8 | 29 | M4 × 0.7 | 38 | 6 | 20 | 3.5 | M4 × 0.7 | 6.5 | 7.5 | 7 | 4 | 0.5 |
20 | 7 | 10 | 36 | M5 × 0.8 | 47 | 8 | 25.5 | 5.4 | M6 × 1.0 | 9 | 8 | 10 | 7 | 1 |
25 | 12 | 12 | 40 | M6 × 1.0 | 52 | 10 | 28 | 5.4 | M6 × 1.0 | 9 | 9 | 10 | 7 | 1 |
- *For the following bore/stroke sizes, the through-hole is threaded: Standard switch: ø12 (12‑mm diameter) and ø16 (16‑mm diameter) 5 stroke; ø20 (20‑mm diameter) 5 to 15 stroke, ø25 (25‑mm diameter) 5 and 10 stroke. Built-in magnet with auto switch: ø20 (20‑mm diameter) 5 mm stroke.
- *Rubber bumper type has the same dimensions as those indicated above.
Basic Information
Cylinder Operation Method | Double Acting | Rod Operation Method | Single Rods |
---|
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Liên Hệ Medin Co., Ltd
- Công ty TNHH Mễ Đình được thành lập từ năm 2006.
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