Airtac SCJ100 Standard Cylinder SCJ100X225-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X225-30S 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, 225mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke225 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X225-30S
The SCJ100X225-30S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, providing a 30 mm fine-tuning range at the rear end. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa, making it suitable for robust clamping, pressing, and positioning tasks where the final stroke length needs on-machine calibration.
This model features a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The 25 mm piston rod and PT1/2 port ensure high flow for responsive cycling, while the 29 mm air cushion at each end provides reliable deceleration for the 225 mm nominal stroke.
Airtac SCJ100 Standard Cylinder SCJ100X225-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X225-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 225 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 SCJ100X225-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SCJ100X225-30S Is Used
Format Changeovers
Quickly dial in a new end-stop position for different product sizes on a packaging or assembly machine without mechanical stop adjustments.
Press-Fit Calibration
Fine-tune the final insertion depth of a 3927 N press operation during commissioning to achieve a precise, repeatable assembly.
Wear Compensation
Adjust the stroke end to take up mechanical wear in tooling or mating parts over time, maintaining consistent clamping force and position.
Is the Airtac SCJ100 Standard Cylinder SCJ100X225-30S the Right Cylinder?
Choose the SCJ100X225-30S when you need a powerful, field-adjustable stroke end position without replacing the cylinder. If your application requires a fixed, non-adjustable stroke, the standard SC100 series is a direct alternative. Stepping up to a 125 mm bore provides a significant force increase to 6136 N push at 0.5 MPa, while moving down to an 80 mm bore reduces it to 2513 N. For replacement, match the 100 mm bore, 225 mm nominal stroke, 30 mm adjust range, PT port thread, and the integrated magnet. This model uses a basic mount; foot (LB) or trunnion (TC) accessories can be added if needed.
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 SCJ100X225-30S FAQ
At the standard 0.5 MPa operating pressure, the push force is 3927 N and the pull force on the single rod is 3681 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 7068 N.
A rear-cap adjusting screw allows you to shorten the stroke end by up to 30 mm from the nominal 225 mm. This sets a new mechanical end-stop for the piston, enabling fine-tuning on the machine without affecting the cylinder's force output or port position.
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