Airtac SCJ100 Standard Cylinder SCJ100X240-100S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X240-100S 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, 240mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke240 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X240-100S
The SCJ100X240-100S is a double-acting, single-rod tie-rod cylinder with a 100 mm bore and a nominal 240 mm stroke, featuring a rear-cap adjusting screw that provides up to 100 mm of field-adjustable stroke reduction. This allows precise end-position tuning without swapping the cylinder, ideal for commissioning and format changes. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, with a 25 mm piston rod and PT1/2 ports.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG/DMSG/EMSG sensors for electronic end-of-stroke detection. The body length A(SCJ) is 245 mm, and the unit operates on 40 µm filtered air from 0.15 to 1.0 MPa. The adjustable air cushion decelerates the piston smoothly, and the standard PT threads ensure compatibility with common pneumatic fittings.
Airtac SCJ100 Standard Cylinder SCJ100X240-100S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X240-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 240 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 SCJ100X240-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×240 | 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 SCJ100X240-100S Is Used
Commissioning & Setup
During machine commissioning, the 100 mm adjustment range lets technicians dial in the exact stroke end position for grippers, clamps, or pushers without needing multiple fixed-stroke cylinders.
Format Changeovers
On packaging or assembly lines, quickly adapt the cylinder's end stop for different product sizes or box formats, reducing downtime between production runs.
Wear Compensation
In high-cycle pressing or clamping operations, the adjustable screw can be used to take up mechanical wear on tooling or seals, maintaining consistent contact force over time.
Is the Airtac SCJ100 Standard Cylinder SCJ100X240-100S the Right Cylinder?
Choose the SCJ100X240-100S when you need substantial force in a compact 100 mm bore and the ability to fine-tune the stroke end by up to 100 mm on the machine. If 3927 N of push force at 0.5 MPa is insufficient, stepping up to the 125 mm bore provides 6136 N; if it is excessive, the 80 mm bore offers 2513 N. For applications where the stroke never needs adjustment, a fixed-stroke SC100X240 may be a simpler, lower-cost alternative.
For a direct replacement, match the 100 mm bore, 240 mm nominal stroke, 100 mm adjustable range, PT port threads, and the built-in magnet. Since the nominal stroke is 240 mm, side-loading is generally manageable, but for long strokes or high-speed cycling, consider an external guide or a guided cylinder to protect the rod from bending. This model uses a basic mount; foot (LB), front flange (FA), or centre trunnion (TC) mounting accessories are available separately.
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 SCJ100X240-100S FAQ
At the standard 0.5 MPa operating pressure, the cylinder provides 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 due to the area of the 25 mm piston rod.
A rear-cap screw mechanically limits the piston's stroke end by up to 100 mm, allowing you to reduce the 240 mm nominal stroke to any length down to 140 mm. Choose the SCJ when you need to fine-tune the end position during setup, for different product formats, or to compensate for wear. A fixed-stroke SC cylinder is better for applications with a single, unchanging stroke requirement.
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