Airtac SCJ100 Standard Cylinder SCJ100X50-50S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X50-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø100mm bore, 50mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke50 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X50-50S
The SCJ100X50-50S is a double-acting, single-rod tie-rod cylinder with a 50 mm field-adjustable stroke end, giving you precise control over the final piston position without swapping the cylinder. With a 100 mm bore, it delivers 3927 N of push force at 0.5 MPa and up to 7068 N at the maximum operating pressure of 0.9 MPa, making it a strong choice for heavy-duty end-stop positioning.
The built-in magnet (denoted by the -S suffix) allows easy mounting of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the barrel for reliable end-of-stroke detection. The rear adjusting screw shortens the stroke end within the 50 mm range, and the 25 mm diameter piston rod provides robust resistance to bending, while the 29 mm air cushion decelerates the load smoothly.
Airtac SCJ100 Standard Cylinder SCJ100X50-50S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X50-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 50 mm |
| Stroke adjustment | Up to 50 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 SCJ100X50-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ100X50-50S Is Used
Commissioning & Setup
Fine-tune the end-stop position by up to 50 mm during machine commissioning without removing the cylinder, drastically reducing setup time on a new production line.
Wear Compensation
In high-cycle clamping or pressing operations, use the adjusting screw to take up mechanical wear on tooling or contact surfaces, maintaining consistent clamp force over time.
Format Changeover
Quickly adjust the stroke end for different product sizes on a packaging or sorting machine, enabling a single cylinder to handle multiple formats with a simple screw adjustment.
Is the Airtac SCJ100 Standard Cylinder SCJ100X50-50S the Right Cylinder?
Select this 100 mm bore model when you need substantial push force—3927 N at 0.5 MPa—and the ability to fine-tune the stroke end by up to 50 mm for commissioning or format changes. If your force requirement is lower, stepping down to the SCJ80 (2513 N push at 0.5 MPa) can reduce air consumption and physical size. For applications where the stroke is fixed and never needs adjustment, the standard SC100 fixed-stroke cylinder is a more economical alternative.
A direct replacement must match the 100 mm bore, 50 mm nominal stroke, 50 mm adjustment range, PT port thread, and the built-in magnet. The SCJ mounting system supports Basic, FA, LB, and TC/TCM1 accessories, but does not include FB flange or CA/CB clevis mounts. For this 50 mm stroke, side loading is typically not a concern, but always ensure the load is guided externally if any lateral force is present.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ100X50-50S FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is lower due to the single 25 mm rod, providing 3681 N at 0.5 MPa. These forces are identical to a fixed-stroke SC100 cylinder of the same bore.
No, the SCJ100X50-50S is a standard double-acting cylinder and will not hold its position if air pressure is lost or the valve is centered. The adjustable screw only sets the stroke end position and does not act as a lock. If load holding is required without live pressure, you must add a pilot-operated check valve or an external mechanical rod brake.
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