Airtac SCJ100 Standard Cylinder SCJ100X40-30
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X40-30 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. Ø100mm bore, 40mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke40 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X40-30
The SCJ100X40-30 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, delivering a robust 3927 N of push force at 0.5 MPa. The rear-cap adjusting screw provides a 30 mm range to fine-tune the stroke end position, making it ideal for commissioning and format changeovers on medium-duty automation. This 100 mm bore cylinder uses a 25 mm piston rod and PT1/2 ports.
With a body length A of 245 mm, the SCJ100X40-30 features an adjustable air cushion to decelerate the piston smoothly at the end of travel, protecting the end cap from impact. The maximum operating pressure is 1.0 MPa, where it generates 7068 N of push force, providing a significant power reserve for clamping or pressing applications that require precise end-stop adjustment.
Airtac SCJ100 Standard Cylinder SCJ100X40-30 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X40-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 40 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X40-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SCJ100 Standard Cylinder SCJ100X40-30 Is Used
End-Stop Calibration
The 30 mm adjusting screw allows operators to precisely calibrate the final position of a pusher or stop during machine commissioning, eliminating the need for shims or custom mechanical stops.
Product Format Changeover
Quickly adapt the stroke end for different product sizes on a packaging or sorting line. The 3927 N push force at 0.5 MPa handles the transfer of heavy totes or boxes without swapping the cylinder.
Clamping with Depth Control
In a clamping fixture, the adjustable stroke sets a repeatable, controlled depth. The 7068 N maximum push force at 0.9 MPa provides a powerful, secure hold for machining or welding processes.
Is the Airtac SCJ100 Standard Cylinder SCJ100X40-30 the Right Cylinder?
Choose the SCJ100X40-30 when you need the 3927 N push force of a 100 mm bore but require the ability to dial in the exact stroke end on the machine. If your force requirement is lower, stepping down to an 80 mm bore SCJ provides 2513 N of push force at 0.5 MPa. For applications where the stroke is fixed and will never need adjustment, a standard SC100X40 fixed-stroke cylinder is a simpler, more cost-effective alternative.
To replace this model directly, match the 100 mm bore, 40 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profiles. For strokes of 300 mm or more, evaluate side-loading on the 25 mm rod and consider adding an external guide or switching to a guided cylinder to prevent rod 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 SCJ100 Standard Cylinder SCJ100X40-30 FAQ
As a single-rod cylinder, the push and pull forces are different. At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 7068 N.
No, the SCJ series is a tie-rod cylinder, not an ISO 15552 profile cylinder. The mounting dimensions and body length A of 245 mm are specific to AirTAC's SCJ design. For a direct replacement, you must match another AirTAC SCJ cylinder with the same 100 mm bore, 40 mm nominal stroke, and 30 mm adjust range.
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