Airtac SCJ50 Standard Cylinder SCJ50X60-30S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X60-30S 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, 60mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke60 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X60-30S
The SCJ50X60-30S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, giving you 30 mm of fine-tuning range on the 60 mm nominal stroke. Its 50 mm bore generates 982 N of push force at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa, making it a strong mid-range actuator for positioning and pressing tasks.
A built-in magnet is integrated into the piston, so you can directly mount CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for reliable end-of-stroke detection. The cylinder uses a 20 mm diameter piston rod, PT1/4 ports, and an M16x1.5 rod thread, with an adjustable air cushion to decelerate the load smoothly.
Airtac SCJ50 Standard Cylinder SCJ50X60-30S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X60-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 60 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 SCJ50X60-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×60 | 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 SCJ50X60-30S Is Used
End-Stop Fine-Tuning
The 30 mm rear adjusting screw allows operators to precisely set the retract stroke end for clamping or pressing operations, compensating for variations in part thickness without reprogramming the machine.
Sensor-Controlled Positioning
With the built-in magnet, you can mount CMSG/DMSG sensors to confirm the piston has reached the adjusted stroke end, providing a closed-loop signal for automated assembly and pick-and-place systems.
Format Changeovers
Quickly adapt the cylinder's stroke for different product sizes on a packaging or labeling line by turning the rear screw, eliminating the need to swap cylinders or add external hard stops.
Is the Airtac SCJ50 Standard Cylinder SCJ50X60-30S the Right Cylinder?
Choose the SCJ50 when the 40 mm bore's 628 N push force at 0.5 MPa is insufficient, but the larger 63 mm bore's 1559 N is more capacity than your application requires. This adjustable-stroke model is the right choice over a fixed-stroke SC when you need to dial in the exact stopping position during commissioning or for different product formats. For a direct replacement, match the 50 mm bore, 60 mm nominal stroke, 30 mm adjustment range, PT port thread, and the built-in magnet (-S). If your application involves a stroke of 300 mm or more, evaluate side-loading on the rod and consider an external guide or a guided cylinder to prevent bending.
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 SCJ50X60-30S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The force increases with pressure, reaching a maximum push of 1767 N at 0.9 MPa. The pull force is lower because the rod reduces the effective piston area on the return stroke.
Yes, if you need the ability to adjust the stroke end. The SCJ50X60-30S has the same bore, port size (PT1/4), and rod dimensions as a standard SC50. The key difference is the rear adjusting screw, which makes the body slightly longer. Ensure your mounting space can accommodate the SCJ's body length.
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