Airtac SCJ40 Standard Cylinder SCJ40X110-30
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X110-30 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. 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 SCJ40X110-30
The SCJ40X110-30 delivers a nominal 110 mm stroke with a rear-cap adjusting screw that provides up to 30 mm of field-adjustable end-position control. At 0.5 MPa, this single-rod double-acting cylinder generates 628 N of push force and 528 N on the pull stroke, making it a practical choice for light pressing, clamping, and ejection tasks where the final stop point must be dialled in precisely during commissioning.
Built on the proven SC tie-rod platform, the 40 mm bore unit uses a 16 mm diameter piston rod and PT1/4 ports. Its adjustable air cushion decelerates the piston smoothly, and the body length (A dimension) is 185 mm. The stroke is well within the 1200 mm maximum standard stroke for this bore, so it ships as a standard catalogue item.
Airtac SCJ40 Standard Cylinder SCJ40X110-30 Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X110-30 |
|---|---|
| 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 SCJ40X110-30
| 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 SCJ40X110-30 Is Used
End-Stop Fine-Tuning
Use the 30 mm adjusting screw to dial in the exact retract or extend stop during machine setup, eliminating the need to shim or reposition the cylinder body.
Format Changeovers
On packaging lines, quickly adjust the stroke end to accommodate different box heights or product sizes without mechanical rework, reducing downtime between batches.
Wear Compensation
In clamping fixtures, periodically advance the screw to take up pad wear, maintaining consistent clamping force without replacing the cylinder.
Is the Airtac SCJ40 Standard Cylinder SCJ40X110-30 the Right Cylinder?
Step up to the SCJ50 bore if your application demands more force—the 50 mm bore provides 982 N of push at 0.5 MPa. If your stroke never needs field adjustment, the fixed-stroke SC40X110 offers the same force and mounting envelope without the rear screw. For a direct replacement, match the 40 mm bore, 110 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting style; the SCJ mounting subset includes FA front flange, LB foot, or TC centre trunnion (with TCM1 bracket) if you need to change the mounting later.
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 SCJ40X110-30 FAQ
At the standard 0.5 MPa operating pressure, it delivers 628 N pushing and 528 N pulling. At the maximum 0.9 MPa, push force reaches 1130 N. The rear adjusting screw changes only the stroke end position, not the output force.
Yes, the SCJ40X110-30 shares the same bore, rod diameter, port size, and mounting accessories (FA, LB, TC) as the SC40 series. The body is slightly longer to house the adjusting screw, so verify clearance behind the rear cap before swapping.
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