Airtac SCJ100 Standard Cylinder SCJ100X450-50S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X450-50S 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, 450mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke450 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X450-50S
The AirTAC SCJ100X450-50S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the 450 mm nominal stroke by up to 50 mm via the rear-cap adjusting screw. Its 100 mm bore delivers a push force of 3927 N at 0.5 MPa and 7068 N at 0.9 MPa, making it a strong candidate for pressing, clamping, and material-handling tasks where the end position needs periodic tweaking.
The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke or mid-stroke position feedback. With a 25 mm piston rod, PT1/2 ports, and a 29 mm air cushion, this cylinder balances robust thrust with smooth deceleration, while the 245 mm body length A(SCJ) keeps the package compact for its force class.
Airtac SCJ100 Standard Cylinder SCJ100X450-50S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X450-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 450 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 SCJ100X450-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SCJ100X450-50S Is Used
Commissioning & Fine-Tuning
During machine setup, the 50 mm screw adjustment lets technicians precisely set the end stop for a 450 mm stroke actuator without fabricating custom hard stops, speeding up line commissioning.
Format Changeover
On packaging lines that handle multiple box sizes, the adjustable stroke allows operators to quickly reset the pusher stroke end for different product lengths, minimizing downtime between batches.
Wear Compensation
In long-running clamping fixtures, the screw can be advanced to take up mechanical wear in the tooling or workpiece contact surfaces, maintaining consistent clamp force without replacing the cylinder.
Is the Airtac SCJ100 Standard Cylinder SCJ100X450-50S the Right Cylinder?
Choose the SCJ100X450-50S when you need roughly 3900 N of push force at standard plant pressure and the ability to dial in the stroke end without swapping cylinders. If your force requirement is lower, stepping down to the 80 mm bore (2513 N push at 0.5 MPa) saves air and weight; if you need more, the 125 mm bore delivers 6136 N push at the same pressure. For applications that never need stroke adjustment, a fixed-stroke SC100X450 cylinder with the same magnet option is a simpler, slightly shorter alternative. At 450 mm stroke, be mindful of side loads—consider an external guide rail or a guided cylinder if the rod sees off-axis forces, or keep the load axially aligned to prevent rod bending.
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 SCJ100X450-50S FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N (the difference is due to the single 25 mm rod). At the maximum operating pressure of 0.9 MPa, push force reaches 7068 N.
A fixed-stroke SC100 will fit the same mounting and port connections, but you lose the rear adjusting screw. If your process needs the 50 mm stroke-end adjustment range, you must replace it with another SCJ100 cylinder with the same nominal stroke, adjust range, and magnet option.
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