Airtac SCJ50 Standard Cylinder SCJ50X32-30
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X32-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø50mm bore, 32mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke32 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X32-30
The SCJ50X32-30 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, providing a 30 mm adjustment range via the rear-cap screw. In the 50 mm bore class, it delivers a push force of 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa, using a 20 mm diameter piston rod.
This tie-rod cylinder uses PT1/4 ports and an M16x1.5 rod thread, with a 21 mm air cushion for end-of-stroke deceleration. The body length A(SCJ) is 194 mm, making it a compact solution for applications where the final stop position must be tuned during commissioning or after mechanical wear without replacing the cylinder.
Airtac SCJ50 Standard Cylinder SCJ50X32-30 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X32-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 32 mm |
| Stroke adjustment | Up to 30 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 SCJ50X32-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×32 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ50X32-30 Is Used
Commissioning & Setup
The 30 mm adjustment screw allows operators to dial in the exact stop position during machine commissioning without fabricating shims or mechanical stops, saving hours of setup time on a new production line.
Wear Compensation
In clamping or pressing fixtures, the adjustable stroke end can be advanced over time to compensate for tooling or pad wear, maintaining consistent clamp force without reprogramming the PLC or changing the cylinder.
Product Changeover
For packaging lines running multiple product sizes, the rear screw lets a technician quickly change the cylinder's end-stop to match a new box or carton dimension, reducing changeover time between batches.
Is the Airtac SCJ50 Standard Cylinder SCJ50X32-30 the Right Cylinder?
Choose the SCJ50X32-30 when you need to fine-tune a 32 mm stroke end position within a 30 mm window. If the force is insufficient, stepping up to a 63 mm bore provides 1559 N of push force at 0.5 MPa. For applications requiring a fixed, non-adjustable stroke, the standard SC series is a more economical choice. A direct replacement must match the 50 mm bore, 32 mm nominal stroke, 30 mm adjustment range, PT1/4 ports, and basic mounting style.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ50X32-30 FAQ
The push force is 982 N at 0.5 MPa and 1767 N at 0.9 MPa. The pull force is lower due to the 20 mm rod reducing the effective piston area on the retract stroke, providing 825 N at 0.5 MPa.
Yes, if you need field adjustability. The SCJ50X32-30 matches the mounting envelope of an SC50 but adds a 30 mm stroke-end adjustment range. Ensure the longer body length A(SCJ) of 194 mm fits your machine and that the nominal 32 mm stroke and PT1/4 ports are correct.
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