Airtac SCJ50 Standard Cylinder SCJ50X60-50S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X60-50S 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 SCJ50X60-50S
The AirTAC SCJ50X60-50S is a double-acting, single-rod cylinder with a 50 mm adjustable stroke range, letting you fine-tune the stroke end position by up to 50 mm without swapping the unit. With a 50 mm bore, it delivers 982 N of push force at 0.5 MPa, making it a solid performer for medium-duty positioning tasks where commissioning or format changes demand on-machine flexibility.
This model includes a built-in magnet (-S suffix), so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 20 mm piston rod, M16x1.5 rod thread, and 21 mm air cushion work together to handle deceleration smoothly. Its body length A(SCJ) is 194 mm, slightly longer than the fixed-stroke SC version to house the rear adjusting screw.
Airtac SCJ50 Standard Cylinder SCJ50X60-50S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X60-50S |
|---|---|
| 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 SCJ50X60-50S
| 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 SCJ50X60-50S Is Used
Commissioning & Setup
Dial in the exact stroke end on a new assembly station without cutting guide rails or swapping cylinders, saving hours of mechanical adjustment during line bring-up.
Format Changeover
Quickly adjust the push stroke for different box sizes on a packaging line. The 50 mm range handles multiple product formats with a simple screw adjustment.
Wear Compensation
Take up mechanical play in a clamping or pressing fixture over time. The rear screw lets operators restore the exact stroke end position as tooling wears, maintaining consistent part quality.
Is the Airtac SCJ50 Standard Cylinder SCJ50X60-50S the Right Cylinder?
Step up to a 63 mm bore (1559 N push at 0.5 MPa) if you need more force, or down to 40 mm (628 N) for a lighter, more compact drive. Pick the SCJ over the fixed-stroke SC when you expect to tweak the stroke end repeatedly—during line commissioning, wear take-up, or product changeovers. For a direct replacement, match the 50 mm bore, 60 mm nominal stroke, 50 mm adjust range, PT port thread, and the -S magnet option; the mounting is basic, so you would add an FA front flange or LB foot bracket if needed.
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 SCJ50X60-50S FAQ
At 0.5 MPa, the cylinder produces 982 N of push force and 825 N of pull force. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 1964 N. The pull force is always lower due to the single rod's cross-sectional area.
Yes, if you need the adjustable stroke feature. The SCJ50X60-50S matches the mounting footprint and port size of an SC50, but the body is longer (194 mm A-length) to house the adjusting screw. Ensure your machine has clearance for the extended rear cap and that the 50 mm adjustment range covers your stroke variation needs.
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