Airtac SCJ100 Standard Cylinder SCJ100X450-100S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X450-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 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-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X450-100S
The SCJ100X450-100S delivers a robust 3927 N of push force at 0.5 MPa, making it a powerful solution for heavy-duty applications requiring fine-tuned linear motion. Its 100 mm adjustable stroke range, controlled by a rear-cap screw, allows operators to precisely set the stroke end position anywhere within the full 450 mm nominal length, ideal for commissioning and format changes on large-scale equipment.
This double-acting, single-rod cylinder features a 25 mm diameter piston rod, PT1/2 ports, and a 29 mm air cushion for smooth deceleration. The integrated magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection. With a body length of 245 mm, it provides a maximum theoretical force of 801 kgf, suitable for demanding industrial automation tasks.
Airtac SCJ100 Standard Cylinder SCJ100X450-100S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X450-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 450 mm |
| Stroke adjustment | Up to 100 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 SCJ100X450-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ100X450-100S Is Used
Automated Sorting Gates
Fine-tune the stroke end on a conveyor diverter gate to accommodate different package sizes without mechanical stops, using the 100 mm adjustment range for quick changeovers.
Press-Fit Assembly Stations
Dial in the exact insertion depth for pressing bearings or bushings. The 3927 N push force at 0.5 MPa handles tough fits, while the adjustable stroke ensures consistent, controlled final positions.
Clamping & Fixturing Jigs
Adapt the clamp stroke for varying workpiece thicknesses in welding or machining fixtures. The rear adjusting screw provides a secure, repeatable end-stop that can be tweaked as tooling wears.
Is the Airtac SCJ100 Standard Cylinder SCJ100X450-100S the Right Cylinder?
For applications needing a step up in force, the SCJ125 bore offers 6136 N of push at 0.5 MPa. If a fixed stroke is sufficient, the standard SC100 series provides a more economical choice without the adjustable feature. This SCJ model is a direct replacement for any AirTAC SCJ100X450-100S cylinder, matching the bore, 450 mm nominal stroke, 100 mm adjustment range, PT ports, and the built-in magnet for sensor compatibility.
At a 450 mm stroke, careful consideration of side loads is essential to prevent rod bending. Ensure the load is guided externally or consider a guided cylinder if significant off-axis forces are present during the extend and retract cycle.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ100X450-100S FAQ
A screw in the rear cap acts as an internal stop for the piston, allowing you to shorten the stroke end by up to 100 mm from its nominal 450 mm maximum. It does not change the cylinder's force output or speed, only the physical stopping point of the rod.
At the standard 0.5 MPa operating pressure, the push force is 3927 N and the pull force is 3681 N due to the single rod design. At the maximum operating pressure of 1.0 MPa, the push force reaches a theoretical 7068 N.
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