Airtac SCJ50 Standard Cylinder SCJ50X200-50S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-50S 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, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke200 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X200-50S
The SCJ50X200-50 is a double-acting, single-rod pneumatic cylinder that delivers a robust 982 N of push force at 0.5 MPa, making it a solid choice for medium-duty automation tasks. Its defining feature is the rear-cap adjusting screw, which provides a 50 mm field-adjustable range on the stroke end, allowing you to fine-tune the 200 mm nominal stroke without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet (-S suffix), so you can directly mount CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for precise, non-contact end-of-stroke detection. The 20 mm diameter piston rod, PT1/4 ports, and a 21 mm air cushion at each end ensure smooth, controlled motion. With a body length of 194 mm plus the stroke, it fits neatly into layouts where commissioning trials or format changes demand quick stroke adjustments.
Airtac SCJ50 Standard Cylinder SCJ50X200-50S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 200 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 SCJ50X200-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×200 | 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 SCJ50X200-50S Is Used
Commissioning & Setup
The 50 mm adjustment range lets technicians dial in the exact stroke end position during machine commissioning without cutting brackets or re-mounting the cylinder, saving hours of setup time.
Product Format Changeover
On packaging lines, quickly adapt the pusher stroke for different box sizes. The rear screw adjusts the end stop in seconds, eliminating the need for multiple fixed-stroke cylinders.
Wear Compensation
In clamping or pressing fixtures, use the adjustable stroke to take up mechanical wear on tooling or seals over time, maintaining consistent clamping force without reprogramming the PLC.
Is the Airtac SCJ50 Standard Cylinder SCJ50X200-50S the Right Cylinder?
Choose the SCJ50X200-50 when your application needs a 200 mm stroke with the flexibility to shorten the end position by up to 50 mm for setup or wear take-up. If you require more force, stepping up to the 63 mm bore provides 1559 N of push at 0.5 MPa. For applications where the stroke is fixed and never needs field adjustment, the standard SC50X200 is a simpler, cost-effective alternative. This SCJ cylinder is a direct replacement for another AirTAC SCJ50X200-50 with PT ports, a basic mount, and a magnet. For strokes of 200 mm, ensure the rod is aligned with the load to prevent side-loading and bending; if misalignment is unavoidable, add an external guide rail or switch to a guided cylinder.
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 SCJ50X200-50S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The push force is higher because the single piston rod reduces the effective area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 1964 N.
Yes, this is a direct dimensional and performance match for an AirTAC SCJ50X200-50 cylinder with PT ports, a basic mount, and a built-in magnet. Verify that your existing mounting and port connections match this configuration before ordering.
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