Airtac SCJ100 Standard Cylinder SCJ100X300-10S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X300-10S 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, 300mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke300 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X300-10S
The SCJ100X300-10S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, built on a robust tie-rod design. The 100 mm bore generates a substantial 3927 N of push force at 0.5 MPa, while the 25 mm diameter piston rod provides the structural rigidity needed for a 300 mm stroke. A key feature is the rear-cap adjusting screw, which allows you to fine-tune the stroke end position by up to 10 mm without removing the cylinder from the machine, simplifying commissioning and format changes.
This model includes a built-in magnet (-S suffix), allowing standard CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The standard PT 1/2 port threads and TPU seals are fitted, providing reliable operation on filtered air from 0.15 to 1.0 MPa. The adjustable air cushion decelerates the piston smoothly at both ends, with a 29 mm cushion length to absorb energy effectively.
Airtac SCJ100 Standard Cylinder SCJ100X300-10S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X300-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 300 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 SCJ100X300-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SCJ100X300-10S Is Used
End-Stop Fine-Tuning
Perfect for applications where the final actuator position needs micro-adjustment during setup to align with tooling or workpieces, with the 10 mm screw providing precise control.
Wear Compensation on Stops
Ideal for conveyor diverters or pushers where a mechanical stop may wear over time. The adjustable stroke can be easily extended to compensate for material loss, maintaining consistent positioning.
Sensor-Ready Format Changeover
The built-in magnet allows quick mounting of sensors to confirm the adjusted stroke position, making this cylinder a smart choice for packaging machines that undergo frequent format changeovers.
Is the Airtac SCJ100 Standard Cylinder SCJ100X300-10S the Right Cylinder?
This 100 mm bore cylinder is a powerful mid-range actuator. If your application requires more force, stepping up to the 125 mm bore SCJ delivers 6136 N of push force at the same 0.5 MPa pressure. For lighter, faster-moving loads, the 80 mm bore version provides 2513 N of push force. The SCJ adjustable-stroke design is the right choice when you need to dial in a precise end-of-stroke position on the machine, but if your stroke length is fixed and never needs adjustment, the standard SC fixed-stroke cylinder is a more economical alternative. For a 300 mm stroke, always ensure the rod is not subjected to significant side loads; if lateral forces are present, use an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear. A direct replacement must match this 100 mm bore, 300 mm nominal stroke, 10 mm adjust range, PT ports, basic mounting, and the -S magnet option.
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 SCJ100X300-10S FAQ
At the standard operating pressure of 0.5 MPa, it produces 3927 N of push force and 3681 N of pull force. The maximum push force at 0.9 MPa is 7068 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
You can, but only if you need the adjustable stroke feature. The SCJ has a longer body length (A=245 mm) than the fixed-stroke SC to house the adjusting screw. Ensure the 10 mm adjustment range and the extra length fit your machine. A direct SC replacement would be an SC100X300-S if you only need the magnet.
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