Airtac SCJ40 Standard Cylinder SCJ40X110-30S
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X110-30S 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. Ø40mm bore, 110mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke110 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X110-30S
This SCJ40X110-30S double-acting cylinder delivers 628 N of push force at 0.5 MPa, making it a capable mid-range actuator for tasks needing a 110 mm nominal stroke. The defining feature is its rear-cap adjusting screw, which allows you to shorten the stroke end by up to 30 mm directly on the machine, eliminating the need to swap cylinders or fabricate external stops during commissioning.
Equipped with a built-in magnet (-S suffix), the 40 mm bore body is ready for CMSG/DMSG/EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The 16 mm diameter piston rod and PT1/4 port ensure a robust connection, while the standard TPU seal provides reliable operation from -20 to +70 °C.
Airtac SCJ40 Standard Cylinder SCJ40X110-30S Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X110-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 110 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCJ40 Standard Cylinder SCJ40X110-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×110 | 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 SCJ40 Standard Cylinder SCJ40X110-30S Is Used
Commissioning Fine-Tuning
The 30 mm screw adjustment lets technicians dial in the precise end-stop position during initial machine setup without needing to modify hard stops or swap out the cylinder.
Wear Compensation
In clamping or pressing fixtures, the stroke can be easily adjusted over time to compensate for wear on tooling or workpieces, maintaining consistent clamping force and position.
Format Changeover
Quickly adapt the cylinder's end position for different product sizes on a packaging or assembly line, reducing changeover time compared to mechanical stop adjustments.
Is the Airtac SCJ40 Standard Cylinder SCJ40X110-30S the Right Cylinder?
Step up to the SCJ50 bore for a significant force increase to 982 N push at 0.5 MPa if your load is near this model's limit. For applications where the stroke is permanently fixed after setup, a standard SC40X100 fixed-stroke cylinder is a more economical choice. This SCJ model is a direct replacement for any AirTAC SCJ40 cylinder with a 110 mm nominal stroke, 30 mm adjust range, PT ports, and a magnet, using basic mounting. For strokes of 300 mm or more, evaluate side-loading on the 16 mm rod and consider adding an external linear guide.
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 SCJ40 Standard Cylinder SCJ40X110-30S FAQ
At the standard 0.5 MPa operating pressure, this single-rod cylinder provides 628 N of push force and 528 N of pull force. The push force is higher because pressure acts on the full bore area, while pull force is reduced by the 16 mm rod area.
Yes, this is a direct dimensional and functional replacement for any AirTAC SCJ40 adjustable-stroke cylinder with a 110 mm nominal stroke, a 30 mm adjustment range, PT ports, and a magnet. Ensure your mounting style matches the basic configuration of this model.
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