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CUJ Series Mini Free Mount Cylinder, Bore Size 12 mm / 16 mm / 20 mm (Part Numbers)
Mini free mount series of compact air cylinders.
[Features]
· Space-saving cylinder that reduces the overall length by up to 64% and reduces the volume by up to 70% compared with the same manufacturer's CU Series cylinders.
· With magnet: Shortened by up to approx. 20%, volume reduced by up to approx. 45%. (Compared with the same manufacturer's double acting type CQS cylinder with magnet.)
· Without magnet: Shortened by up to approx. 64%, volume reduced by up to approx. 70%. (Compared with the same manufacturer's double acting type CU cylinder without magnet.)
· With auto switch.
(i)Caution
- ■ SMC Product Line
Webpages for products currently without individual pages on this site will be released on an ad-hoc basis. - Refer to the manufacturer's catalog for specification and material details.
- Product images may be representative images. Refer to the manufacturer's catalog for shape details.
Japanese Only
Part Number
Configured Part Number is shown.
CUJ Series Mini Free Mount Cylinder, Bore Size ø12, ø16, ø20 Specifications
Dimensions (Without Magnet)
| Tube inner diameter | A (a) | B (b) | C (c) |
|---|---|---|---|
| 12 | 17 (−) | 26.5 (−) | 15.5 (−) |
| 16 | 21 (20) | 29.5 (32) | 16.5 (30) |
| 20 | 25 (26) | 36 (40) | 19.5 (36) |
(Units: mm)
(): Dimensions of the same manufacturer's CU cylinder.
Dimensions: CUJ (A × B × C + stroke) CU (a × b × c + stroke)
Specifications
With counterbore for mounting
There is no protrusion for a mounting bolt.
Easy seal replacement
Seals can be replaced easily by just removing the retaining ring.
Bumper equipment as standard
| Bore size mm | 12 | 16 | 20 | |
|---|---|---|---|---|
| Action | Double acting / Single acting, spring return | |||
| Fluid | Air | |||
| Proof Pressure | 1.05 MPa | |||
| Minimum operating pressure | Double-acting type | 0.07 MPa | 0.05 MPa | |
| Single acting, spring return | 0.25 MPa | 0.18 MPa | ||
| Maximum operating pressure | 0.7 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 | Rubber cushion | |||
| Lubrication | Not required | |||
| Piston Speed | 50 to 500 mm/s* | |||
| Stroke Length Tolerance | 0 to +1.0 | |||
| Mounting | CUJB: through-hole (lateral, axial direction: 2 locations each) CUJS: through-hole (axial direction: 2 locations) | |||
Standard Stroke
JIS symbol
Double acting, single rod, rubber bumper
Single acting, spring return, rubber bumper
| Tube Inner Diameter (mm) | Action | Standard Stroke (mm) |
|---|---|---|
| 12 | Double-acting type | 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 |
| 16 | ||
| 20 | 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 | |
| 12 | Single acting, spring return | 5, 10 |
| 16 | ||
| 20 |
Spring Reaction Force: Single Acting, Spring Return
Spring in pre-loaded condition: When the spring is set in the cylinder
Spring in loaded condition: When the spring is contracted by applying air
| Tube inner diameter (mm) | Spring condition | Stroke (mm) | |
|---|---|---|---|
| 5 | 10 | ||
| 12 | Pre-loaded | 6 | 3.5 |
| Loaded | 9.5 | 9.5 | |
| 16 | Pre-loaded | 7.5 | 4.5 |
| Loaded | 11 | 11 | |
| 20 | Pre-loaded | 10.5 | 5.5 |
| Loaded | 16.5 | 16.5 | |
(Unit: N)
*Moving the load with the thrust (spring response) on the spring return side will cause a poor stroke.
Weight Table
(Unit: g)
| Tube inner diameter (mm) | Standard Stroke (mm) | Additional weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | Built-in magnet | Rod end male thread | |
| CUJ□12 | 21 | 26 | 31 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 6 | 4 |
| CUJ□16 | 32 | 39 | 46 | 53 | 60 | 67 | 74 | 81 | 88 | 95 | 9 | 8 |
| CUJ□20 | 52 | 62 | 72 | 82 | 92 | 102 | 112 | 122 | 132 | 142 | 12 | 13 |
Double-acting type
(Unit: g)
| Tube inner diameter (mm) | Standard Stroke (mm) | Additional weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 10 | Built-in magnet | Rod end male thread | |||||||||
| CUJ□12 | 23 | 28 | 6 | 4 | ||||||||
| CUJ□16 | 34 | 41 | 9 | 8 | ||||||||
| CUJ□20 | 53 | 63 | 11 | 13 | ||||||||
Single acting, spring return
| Part Number |
|---|
| Part Number | Minimum order quantity | Volume Discount | Days to Ship | Cylinder (Tube) Inner Diameter (Ø) | Stroke (mm) | Operating Temperature (°C) | Specifications | Port thread type | Type of Mount Support |
|---|
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Basic Information
| Rod Operation Method | Single Rods | Main Body Shape | Plate Cylinder | Additional Function | Standard |
|---|---|---|---|---|---|
| Environment, Applications | Standard | Cushion | Rubber cushion |
Specification/Dimensions
-
Cylinder (Tube) Inner Diameter(Ø)
-
Stroke(mm)
-
Specifications
- Built-in magnet
- Without built-in magnet
-
Port thread type
- M3x0.5
- M5 × 0.8
-
Type of Mount Support
- Axial mounting
- Lateral mounting
-
type
- CDUJB
- CDUJS
- CUJB
- CUJS
-
CAD
- 2D
- 3D
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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