CKD cylinder
Since its founding in 1943, CKD has been a pioneer in industrial automation and pneumatic products. They are the largest manufacturer of general purpose valves in Japan. They have eight global manufacturing facilities, and are ISO 9001 and ISO 14001 certified. CKD even has specialized product lines for automotive/semi-conductor lithium-ion batteries and for the solar panel industry. We stock and distribute CKD pneumatic and fluid control components, including:
Tubing
Valves
Fittings
Bowls
Filters
Regulators
Cylinders
Manifolds
Seal Kits
Electrical & Mechanical Index Units
Medium bore size cylinder
Double acting single rod type
CMK2
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2
Bore size mm
Actuation
Working fluid
Max. working pressure MPa
Min. working pressure MPa
Withstanding pressure MPa
Ambient temperature
Port size
Stroke tolerance mm
Working piston speed
mm/s
Cushion
Lubrication
Allowable energy absorption
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting
Compressed air
1.0
0.1
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
escriptions
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Allowable energy absorption
MPa
MPa
MPa
mm
mm/s
J
Double acting
Compressed air
1.0
0.2
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500 (use within absorbed energy range. )
Rubber-air cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
CMK2
Specifications
20
0.089
25
0.137
32
0.179
40
0.278
Medium bore size cylinder
Double acting back to back type
CMK2-B
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-B
Double acting back to back type
Compressed air
1.0
0.1
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
+2.4
0
Stroke length
Standard stroke length (mm)
Max. stroke length (mm)
Min. stroke length (mm)
25, 50, 75, 100, 150,
200, 250, 300
750 5
Note 1: Custom stroke length is available per 1 mm increment.
Note 2: For bellows "J" type, stroke length should be longer than 25 mm.
Consult with CKD when stroke length is shorter than 25 mm.
Min. stroke length of type with switch
Bore size mm
Actuation
Working fluid
Max. working pressure MPa
Min. working pressure MPa
Withstanding pressure MPa
Ambient temperature
Port size
Stroke tolerance mm
Working piston speed mm/s
Cushion
Lubrication
Allowable energy absorption
J
20
0.166
25
0.308
32
0.424
40
0.639
Medium bore size cylinder
Double acting air cushioned
CMK2-C
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-C
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Effective cushion length
Allowable energy absorption
Lubrication
mm
MPa
MPa
MPa
mm
mm/s
mm
J
20
0.34
25
0.46
32
0.88
40
1.27
Double acting air cushioned
Compressed air
1.0
0.1
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 700
Air cushion
12
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
Medium bore size cylinder
Double acting double rod type
CMK2-D
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-D
Double acting double rod type
Compressed air
1.0
0.15
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
+2.0
0
+2.4
0
Stroke length
Standard stroke length (mm)
Max. stroke length (mm)
Min. stroke length (mm)
25, 50, 75, 100,
150, 200, 250,
300
5
500
500
480
450
Note 1: Up to three switches can be mounted.
Min. stroke length of type with switch
Bore size (mm)
20
25
32
40
20
0.166
25
0.308
32
0.424
40
0.639
Bore size mm
Actuation
Working fluid
Max. working pressure MPa
Min. working pressure MPa
Withstanding pressure MPa
Ambient temperature
Port size
Stroke tolerance mm
Working piston speed mm/s
Cushion
Lubrication
Allowable energy absorpt
Descriptions
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Allowable energy absorption
Double acting
Compressed air
1.0
0.1
1.6
5 to 60
Rc1/8
(up to 200), (over 200)
1 to 200
Rubber cushion
Must be oil free
CMK2-F
0.166
0.639
Medium bore size cylinder double acting coolant proof type
CMK2-G2/G3
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-G2/G3
20, 25,
32, 40
25, 50, 75,100,
150, 200, 250, 300
750 5
25
Bore size (mm)
Standard stroke
length (mm)
Max. stroke length (mm) Min. stroke length (mm)
Min. stroke length with switch (mm)
Stroke length
Note 1: Custom stroke length is available per 1 mm increment.
Note 2: For single foot type (LS type), maximum stroke length is 50 mm.
Double acting coolant proof type
Compressed air
1.0
0.15
1.6
-10 to 60 (no freezing)
Rc1/8
Medium bore size cylinder
Double acting, low hydraulic type
CMK2-H
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-H
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Allowable energy absorption
mm
MPa
MPa
MPa
mm
mm/s
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting low hydraulic type
Hydraulic fluid
1.0
0.15
1.6
5 to 50
Rc1/8
(up to 200), (over 200)
5 to 300
Rubber cushion
Not required
Medium bore size cylinder
Double acting, non-rotating type
CMK2-M
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-M
Bore size mm
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Revolvable angle tolerance (note)
Allowable energy absorption
mm
MPa
MPa
MPa
mm/s
degree
J
20
0.166
25
1.5
0.308
32
0.424
40
1.0
0.639
Double acting non-rotating type
Compressed air
1.0
0.1
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
Medium bore size cylinder
Double acting stroke adjustable type (extended)
CMK2-P
Series
Bore size: 20, 25, 32, 40
escriptions
CMK2-P
Bore size mm
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Adjustable stroke range
Allowable energy absorption
mm
MPa
MPa
MPa
mm
mm/s
mm
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting stroke adjustable type (extended)
Compressed air
1.0
0.15
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.
Medium bore size cylinder
Double acting position locking type
CMK2-Q
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-Q
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Position locking mechanism
Holding force
Allowable energy absorption
mm
MPa
MPa
MPa
mm
mm/s
N
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting position locking type
Compressed air
1.0
0.15
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
Medium bore size cylinder
Double acting stroke adjustable type (retracted)
CMK2-R
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-R
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Adjustable stroke range
Allowable energy absorption
mm
MPa
MPa
MPa
mm
mm/s
mm
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting stroke adjustable type (retracted)
Compressed air
1.0
0.1
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
Medium bore size cylinder
Single acting extend type
CMK2-S
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-S
Bore size mm
Actuation
Working fluid
Max. working pressure MPa
Min. working pressure MPa
Withstanding pressure MPa
Ambient temperature
Port size
Stroke tolerance mm
Working piston speed
mm/s
Cushion
Lubrication
Allowable energy absorption
J
20
0.166
25
0.308
32
0.424
40
0.639
Single acting extend type
Compressed air
1.0
0.2
1.6
-10 to 60 (no freezing)
Rc1/8
(To 200), (200 over to)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.
Medium bore size cylinder
Single acting retract type
CMK2-SR
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-SR
Bore size mm
Actuation
Working fluid
Max. working pressure MPa
Min. working pressure MPa
Withstanding pressure MPa
Ambient temperature
Port size
Stroke tolerance mm
Working piston speed mm/s
Cushion
Lubrication
Allowable energy absorption
J
20
0.166
25
0.308
32
0.424
40
0.639
Single acting retract type
Compressed air
1.0
0.2
1.6
-10 to 60 (no freezing)
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not required (when lubricating, use turbine oil Class 1 ISO VG32.)
Medium bore size cylinder
Double acting heat resistance type
CMK2-T
Series
Bore size: 20, 25, 32, 40
Descriptions
CMK2-T
Bore size
Actuation
Working fluid
Max. working pressure
Min. working pressure
Withstanding pressure
Ambient temperature
Port size
Stroke tolerance
Working piston speed
Cushion
Lubrication
Allowable energy absorption
mm
MPa
MPa
MPa
mm
mm/s
J
20
0.166
25
0.308
32
0.424
40
0.639
Double acting heat resistance type
Compressed air
1.0
0.1
1.6
5 to 120
Rc1/8
(up to 200), (over 200)
50 to 500
Rubber cushion
Not available