Airtac SCJ50 Standard Cylinder SCJ50X60-50
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X60-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø50mm bore, 60mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke60 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X60-50
The AirTAC SCJ50X60-50 is a 50 mm bore double-acting, single-rod cylinder with a field-adjustable stroke end, providing up to 50 mm of fine-tuning range via a rear-cap screw. This model delivers 982 N of push force at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa, making it a capable actuator for tasks where the stroke length must be dialed in precisely during commissioning or changeover.
With a 20 mm diameter piston rod and M16x1.5 rod thread, the cylinder body measures 194 mm in length (A dimension) and includes an adjustable air cushion of 21 mm for smooth deceleration. The PT1/4 port and standard TPU seals suit filtered air from -20 to +70 °C, while the tie-rod construction ensures straightforward maintenance.
Airtac SCJ50 Standard Cylinder SCJ50X60-50 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X60-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 60 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCJ50 Standard Cylinder SCJ50X60-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×60 | Nominal (maximum) stroke length in mm. |
| -50 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCJ50 Standard Cylinder SCJ50X60-50 Is Used
Commissioning & Setup
Ideal for machine builders who need to fine-tune the end position of a pusher or stop during initial system bring-up. The 50 mm adjustment range allows for quick, tool-free optimization without swapping out hard stops.
Format Changeovers
Used on packaging lines to adjust guide rails or diverter gates for different product sizes. Operators can easily reset the stroke end to handle a new box or bottle format, minimizing downtime.
Wear Compensation
In clamping or pressing fixtures, the adjustable stroke can be gradually extended to compensate for wear on tooling or contact surfaces, maintaining consistent clamping force over the life of the fixture.
Is the Airtac SCJ50 Standard Cylinder SCJ50X60-50 the Right Cylinder?
Choose the SCJ50 when you need a mid-range force actuator with on-machine stroke adjustability. For a step up in power, the 63 mm bore provides 1559 N of push force at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore offers 628 N. If your application requires a fixed, non-adjustable stroke, the standard SC series is a more economical choice. This model is a direct replacement for any AirTAC SCJ50 cylinder with a 60 mm nominal stroke and a 50 mm adjustment range, using PT ports and basic mounting.
For strokes of 300 mm or more, consider that the unsupported rod may be subject to side-loading forces. In such cases, an external linear guide or a switch to a guided cylinder is recommended to prevent rod bending and ensure long seal life.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ50 Standard Cylinder SCJ50X60-50 FAQ
The output force depends on the air pressure. At 0.5 MPa, it produces 982 N of push force and 825 N of pull force. The maximum push force at the 0.9 MPa operating limit is 1767 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
Yes, if you need a 50 mm bore with a 60 mm maximum stroke and the ability to shorten it by up to 50 mm. The SCJ50X60-50 is a direct dimensional replacement for another AirTAC SCJ of the same configuration. It is not a drop-in for a fixed-stroke SC series cylinder without verifying the longer body length and rear adjuster clearance.
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