Airtac SCJ100 Standard Cylinder SCJ100X250-10
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X250-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø100mm bore, 250mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke250 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X250-10
The SCJ100X250-10 delivers 3927 N of push force at 0.5 MPa from its 100 mm bore, making it a robust actuator for heavy industrial tasks. Its rear adjusting screw provides a 10 mm field-adjustable stroke end, allowing operators to fine-tune the piston stop position without removing the cylinder or adding external hard stops.
This single-rod, double-acting cylinder uses a 25 mm diameter piston rod and PT1/2 ports for reliable pneumatic connection. The body length A is 245 mm, and it incorporates an adjustable air cushion (29 mm long) to decelerate the load smoothly at the end of its 250 mm nominal stroke.
Airtac SCJ100 Standard Cylinder SCJ100X250-10 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X250-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 10 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 SCJ100X250-10
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ100X250-10 Is Used
End-Stop Fine-Tuning
The 10 mm adjusting screw lets technicians dial in the exact stop position for clamping or pressing tools during setup, compensating for fixture wear or material thickness variations.
Product Diverting
Used on conveyor lines to push items off the belt, the adjustable stroke allows the diverting arm's final position to be set precisely for different package widths without swapping the cylinder.
Format Changeover
In packaging machines, the SCJ100X250-10 allows quick stroke-end adjustment when changing between product formats, reducing downtime compared to manually repositioning external stops.
Is the Airtac SCJ100 Standard Cylinder SCJ100X250-10 the Right Cylinder?
Choose the SCJ100X250-10 when you need a 100 mm bore force class with a 10 mm stroke-end tuning range. If your application requires slightly less force, step down to the 80 mm bore (2513 N push at 0.5 MPa); for significantly higher force, the 125 mm bore provides 6136 N. This adjustable-stroke model is ideal for commissioning trials, but if the stroke length is permanently fixed, a standard SC100X250 cylinder is a simpler, cost-effective alternative. For replacement, match the 100 mm bore, 250 mm nominal stroke, 10 mm adjust range, PT port thread, and basic mounting. At a 250 mm stroke, ensure the rod is guided externally if significant side loads are present to prevent bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ100X250-10 FAQ
At the standard operating pressure of 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. The maximum push force at 0.9 MPa is 7068 N. Because it is a single-rod cylinder, the pull force is lower due to the area occupied by the 25 mm rod.
Yes, if you need the added benefit of a field-adjustable stroke end. The SCJ100X250-10 shares the same bore, nominal stroke, and mounting interfaces as the SC100. Ensure the 10 mm adjustment range and the slightly longer body length fit your machine envelope, and match the port thread (PT) and mounting style.
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