Airtac SCJ100 Standard Cylinder SCJ100X300-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X300-30S 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. Ø100mm bore, 300mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke300 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X300-30S
The SCJ100X300-30S is a 100 mm bore, double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, offering a nominal 300 mm maximum travel. A rear-cap adjusting screw allows the stroke end position to be shortened by up to 30 mm, which is invaluable for fine-tuning machine stops during commissioning or format changeovers without replacing the cylinder. The built-in magnet enables direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection.
At 0.5 MPa, this cylinder delivers a substantial 3927 N of push force and 3681 N of pull force, making it a powerful actuator for heavy-duty clamping and pressing tasks. The 25 mm diameter piston rod and PT1/2 port ensure robust air flow, while the adjustable air cushion provides smooth deceleration. Its body length A is 245 mm, and it is part of the tie-rod SCJ family, designed for demanding industrial environments.
Airtac SCJ100 Standard Cylinder SCJ100X300-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X300-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 300 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 SCJ100X300-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SCJ100X300-30S Is Used
Commissioning & Setup
The 30 mm adjustment screw allows technicians to dial in the exact stroke end position on a new machine, compensating for minor assembly tolerances without needing to re-machine mounting brackets.
Product Format Changeover
Quickly adapt a packaging machine's pusher stroke for different box sizes. The adjustable stroke eliminates the need for mechanical hard stops, reducing changeover time between product runs.
Clamping with Wear Compensation
In a high-cycle clamping fixture, the stroke can be incrementally adjusted over time to compensate for wear on the clamped part or the fixture itself, ensuring consistent clamping force without replacing the cylinder.
Is the Airtac SCJ100 Standard Cylinder SCJ100X300-30S the Right Cylinder?
Choose the SCJ100X300-30S when your application requires a powerful, field-tunable stroke end. If your force needs are lower, stepping down to an 80 mm bore offers 2513 N of push force at 0.5 MPa. For applications needing a fixed, non-adjustable stroke, the standard SC series is a more economical choice. This model is a direct replacement for another AirTAC SCJ100X300-30S with a PT port and built-in magnet. For strokes of 300 mm or more, ensure the rod is not subjected to excessive side loads; if side loading is unavoidable, use an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear.
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 SCJ100X300-30S FAQ
The theoretical push force at 0.5 MPa is 3927 N, and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N. Actual force depends on your working pressure and friction.
A screw in the rear cap acts as an internal, adjustable hard stop for the piston. By turning the screw, you can shorten the stroke end by up to 30 mm from the nominal 300 mm maximum. It does not change the cylinder's force or speed, only the end position of the piston rod's extension.
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