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Air Cylinder, Single Acting, Spring Return CJ1 Series

Air Cylinder, Single Acting, Spring Return CJ1 Series

An air cylinder made by SMC.

[Features]
· A compact series of double acting cylinders
· The piping direction of the fitting on the rod cover side can be moved freely within a range of ±90°.

(i)Caution

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

PDF

Model Number Notation

Model Number Notation

Model Number Notation

Air Cylinder, Single Acting, Spring Return CJ1 Series Specifications

Air Cylinder, Single Acting, Spring Return CJ1 Series external appearance

Air Cylinder, Single Acting, Spring Return CJ1 Series external appearance

Single acting / spring return drawing

Single acting / spring return drawing

ActionSingle acting, spring return
FluidAir
Proof Pressure1.05 MPa
Maximum operating pressure0.7 MPa
Minimum operating pressure0.3 MPa
Ambient and Fluid Temperature-10 to 70°C (no freezing)
Piston Speed50 to 500 mm/s
CushioningNone
Stroke Length Tolerance+0.5
0
Mount Support TypeBasic type
LubricationNot required (non-lubricated)

Model / Cylinder Inner Diameter / Standard Stroke Table

ModelTube Inner Diameter (mm)Standard Stroke (mm)
CJ1B22.55, 10
CJ1B445, 10, 15, 20

Compatible Tubing

Tubing TypeMaterialSizeTube No.
Outer DiameterInner Diameter
Metric SizePolyurethane4 mm2.5 mmTU0425
Soft nylon4 mm2.5 mmTS0425

Theoretical Output Table

 

(Unit: N)

 

Tube Internal Diameter
(mm)
Rod Diameter
(mm)
Operating DirectionPiston Area
(mm2)
Operating Pressure (MPa)
0.30.40.50.60.7
2.51OUT4.90.340.831.321.812.30
IN-0.64
42OUT12.60.742.003.264.525.78
IN-1.47

Spring Return Force

 

(Unit: N)

 

Tube Inner Diameter (mm)Retracted SideExtended Side
2.51.130.64
43.041.47

Weight Table

 

(Unit: g)

 

Tube Inner Diameter (mm)5101520
2.51.52--
43.74.65.66.5

Diagram

CJ1B2-□SU4 diagram

CJ1B2-□SU4 diagram

CJ1B4-□SU4 diagram

CJ1B4-□SU4 diagram

NumberNameMaterialNotes
1Rod coverBrassElectroless nickel plating
2Cylinder TubingBrassElectroless nickel plating
3Piston rodStainless steel-
4SpringStainless steel wire-
5Piston SealNBR-
6Mounting NutBrassBlack zinc chromate
7Rod End NutIronZinc chromate

*Cannot be disassembled.

Dimensions

 

(Units: mm)

 

Tube internal diameter 2.5 mm / CJ1B2-□SU4 dimensional drawing

Tube internal diameter 2.5 mm / CJ1B2-□SU4 dimensional drawing

Tube Inner Diameter (mm)Symbol
SZ
Stroke
510510
2.516.525.52938
Tube internal diameter 4 mm / CJ1B4-□SU4 dimensional drawing

Tube internal diameter 4 mm / CJ1B4-□SU4 dimensional drawing

Tube Inner Diameter (mm)Symbol
SZ
Stroke
51015205101520
419.528.537.546.540495867

Precautions

Piping

  • 1. Do not force a connection in a way that lateral force is applied to the cylinder tube. This could cause the cylinder tube to become slanted and malfunction.

Mounting

  • 1. Do not use in a way that applies a load to the piston rod during retraction. The spring built in to the cylinder only has the force to return the piston rod and so the piston rod will not return as far as the stroke end if a load is applied.
  • 2. Do not install by directly grasping the cylinder tube. This could cause the tube to deform and malfunction.

*See the manufacturer's catalog for product information other than that detailed above.

Part Number
CJ1B2-5SU4
CJ1B2-10SU4
CJ1B4-5SU4
CJ1B4-10SU4
CJ1B4-15SU4
CJ1B4-20SU4
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipCylinder (Tube) Inner Diameter
(Ø)
Stroke
(mm)

SGD 29.17

1 Piece(s) 32 Day(s) 25

SGD 30.22

1 Piece(s) 32 Day(s) 210

SGD 30.44

1 Piece(s) 32 Day(s) 45

SGD 32.20

1 Piece(s) 32 Day(s) 410

SGD 33.60

1 Piece(s) 31 Day(s) 415

SGD 34.65

1 Piece(s) 32 Day(s) 420

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Basic Information

Cylinder Operation Method Single Acting (Extruded) Rod Operation Method Single Rods Main Body Shape Standard
Additional Function Standard Environment, Applications Standard Operating Temperature(°C) -10::70
Cushion None Operating Pressure(MPa) 0.3 to 0.7 Specifications Compatible tubing: polyurethane / soft nylon
Type of Mount Support Basic type Custom-made Specifications None Material of Gasket NBR

Tech Support

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