Airtac SCJ50 Standard Cylinder SCJ50X110-50S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X110-50S 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, 110mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke110 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X110-50S
The SCJ50X110-50S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, offering a nominal 110 mm of travel that can be shortened by up to 50 mm via the rear-cap adjusting screw. This gives you a tunable stroke range of 60–110 mm without swapping the cylinder, making it ideal for commissioning and fine-tuning end positions. With a 50 mm bore, it delivers 982 N of push force at 0.5 MPa, driven by a 20 mm diameter piston rod.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the tie-rod barrel for reliable end-of-stroke detection. The standard TPU seal operates from -20 to +70 °C, and the PT1/4 ports provide a secure pneumatic connection. The body length A(SCJ) is 194 mm, and the adjustable air cushion decelerates the piston smoothly at both ends of the 21 mm cushion zone.
Airtac SCJ50 Standard Cylinder SCJ50X110-50S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X110-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 110 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 SCJ50X110-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×110 | 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 SCJ50X110-50S Is Used
Commissioning & Setup
During machine commissioning, the 50 mm adjustment range allows technicians to fine-tune the cylinder's end-stop position to perfectly align with mating parts, eliminating the need to fabricate custom shims or mechanical stops.
Wear Compensation
In high-cycle clamping or pressing fixtures, the adjustable stroke can be used to take up slack as tooling or contact surfaces wear over time, maintaining consistent clamping force and part quality without replacing the actuator.
Format Changeover
For packaging or assembly lines that handle multiple product sizes, the quick-adjust rear screw allows operators to change the cylinder's stroke end position in seconds, dramatically reducing changeover time between production runs.
Is the Airtac SCJ50 Standard Cylinder SCJ50X110-50S the Right Cylinder?
Choose the SCJ50X110-50S when you need a mid-range force actuator with a stroke that can be precisely dialed in on the machine. If you require more force, stepping up to the 63 mm bore provides 1559 N of push force at 0.5 MPa. For applications where the stroke is fixed and never needs adjustment, the standard SC50 series offers a more economical solution. This cylinder is a direct replacement for any AirTAC SCJ50 cylinder with a 110 mm nominal stroke, a 50 mm adjust range, PT ports, and a magnetic piston.
For this 110 mm stroke, side-loading is generally not a concern in standard applications, but always ensure the load is guided and aligned with the piston rod's axis to prevent premature seal and bearing wear. If your application involves significant lateral forces, an external guide rail or a guided cylinder should be used instead.
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 SCJ50X110-50S FAQ
At the standard operating pressure of 0.5 MPa, this 50 mm bore cylinder generates a push force of 982 N and a pull force of 825 N. The pull force is lower due to the area of the 20 mm piston rod. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 1964 N.
Yes, this SCJ50X110-50S is a direct dimensional and functional replacement for any AirTAC SCJ50 with a 110 mm nominal stroke and a 50 mm adjustment range. The added -S suffix means it includes a magnet, which is fully backward compatible; you can simply add sensors if needed, or ignore the magnet if you are not using electronic position sensing.
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