Airtac SCJ100 Standard Cylinder SCJ100X50-30SN
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X50-30SN 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, 50mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke50 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X50-30SN
The SCJ100X50-30SN is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides up to 30 mm of field-adjustable stroke reduction, letting you fine-tune the end position without swapping the cylinder. With a 100 mm bore, it delivers 3927 N of push force at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa, using a 25 mm diameter piston rod and PT 1/2 ports.
This model is built with NBR (nitrile) seals for reliable performance in standard temperature ranges and includes a built-in magnet, allowing CMSG/DMSG/EMSG sensors to be mounted directly on the tie-rod barrel for precise end-of-stroke sensing. The adjustable cushion and 29 mm cushion length help decelerate the piston smoothly, making it a practical choice for applications where the stroke end must be dialed in during commissioning or format changes.
Airtac SCJ100 Standard Cylinder SCJ100X50-30SN Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X50-30SN |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 50 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 SCJ100X50-30SN
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SCJ100X50-30SN Is Used
End-Stop Commissioning
The 30 mm rear adjustment screw lets technicians dial in the precise stroke end position during initial machine setup, compensating for accumulated tolerances in tooling and fixtures without needing shims or custom stops.
Wear Compensation
In high-cycle clamping or pressing operations, the adjustable stroke can be used to take up mechanical wear on contact surfaces over time, maintaining consistent clamping force and part contact without replacing the actuator.
Product Changeover
For packaging or sorting lines that handle multiple product sizes, the SCJ100X50-30SN allows operators to quickly adjust the pusher or stopper cylinder stroke to match a new format, reducing changeover time compared to fixed-stroke cylinders.
Is the Airtac SCJ100 Standard Cylinder SCJ100X50-30SN the Right Cylinder?
Step up to the SCJ125 if you need more force; the 125 mm bore provides 6136 N of push at 0.5 MPa. For a lower force class, the SCJ80 delivers 2513 N at the same pressure. If your application does not require the ability to adjust the stroke in the field, the fixed-stroke SC100 series offers a simpler, more compact alternative. For direct replacement, match the 100 mm bore, 50 mm nominal stroke, 30 mm adjust range, PT port thread, NBR seals, and the built-in magnet. Since this is a 50 mm stroke, side-load and rod bending are typically not a concern, but always ensure the load is guided and aligned with the rod axis.
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 SCJ100X50-30SN FAQ
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. The pull force is lower because the rod reduces the effective piston area on the return stroke.
A fixed-stroke SC100 will fit the same mounting and has the same force output, but you will lose the ability to fine-tune the stroke end position in the field. If your process requires a specific, adjustable end-stop, you must replace it with another SCJ100 with a compatible adjust range, or add an external hard stop to the fixed-stroke cylinder.
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