Airtac SCJ50 Standard Cylinder SCJ50X15-10
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X15-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø50mm bore, 15mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke15 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X15-10
The SCJ50X15-10 is a double-acting, single-rod pneumatic cylinder featuring a rear-cap adjusting screw that provides up to 10 mm of field-adjustable stroke-end control. With a 50 mm bore and 20 mm piston rod, it delivers a push force of 982 N at 0.5 MPa, making it suitable for applications where fine-tuning the end position during commissioning or format changes is critical.
This tie-rod cylinder uses PT1/4 ports and has an air cushion length of 21 mm for smooth deceleration. Its body length A(SCJ) is 194 mm, and it operates within a standard pressure range of 0.15 to 1.0 MPa. The adjustable screw shortens the nominal 15 mm stroke, allowing precise mechanical stops without swapping the cylinder.
Airtac SCJ50 Standard Cylinder SCJ50X15-10 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X15-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 15 mm |
| Stroke adjustment | Up to 10 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 SCJ50X15-10
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×15 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ50X15-10 Is Used
End-Stop Calibration
Fine-tune the retract stroke end by up to 10 mm during machine commissioning to perfectly align a stop pin or actuator without re-machining mounting brackets.
Short-Stroke Clamping
Provides a compact, adjustable clamping or ejecting motion in assembly fixtures where the 15 mm nominal stroke needs precise field adjustment for different part tolerances.
Wear Compensation
Periodically adjust the stroke end to compensate for wear on a contact pad or tooling tip, maintaining consistent process quality without immediate cylinder replacement.
Is the Airtac SCJ50 Standard Cylinder SCJ50X15-10 the Right Cylinder?
Choose the SCJ50 when you need a mid-range force of 982 N push at 0.5 MPa and the ability to fine-tune the stroke end on the machine. If your force requirement is lower, stepping down to a 40 mm bore reduces push force to 628 N; for more power, the 63 mm bore provides 1559 N. This model is ideal when the application requires a very short, precisely adjustable stroke.
For a direct replacement, match the 50 mm bore, 15 mm nominal stroke, 10 mm adjust range, PT port thread, and basic mounting. If a fixed stroke is sufficient, the standard SC series is a simpler alternative. For strokes of this short length, side-load and rod bending are typically not a concern, but always ensure the load is guided if any lateral forces are present.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ50X15-10 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The maximum push force at the 0.9 MPa operating limit is 1767 N. The pull force is lower due to the 20 mm piston rod area.
A rear adjusting screw lets you shorten the stroke end by up to 10 mm in the field. Pick an SCJ when you need to fine-tune the end position for setup, format changes, or wear take-up. If your stroke requirement is fixed and never needs adjustment, the standard SC series is a more economical choice.
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