Airtac SCJ100 Standard Cylinder SCJ100X75-10STC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-10STC 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, 75mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke75 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X75-10STC
The SCJ100X75-10STC is a 100 mm bore double-acting single-rod cylinder that puts field-adjustable stroke control directly on the machine. Its rear-cap adjusting screw lets you fine-tune the stroke end by up to 10 mm without removing the cylinder or adding external hard stops—ideal for commissioning trials and format changeovers. With a 25 mm piston rod, PT1/2 ports, and a 29 mm air cushion, it delivers 3927 N of push force at 0.5 MPa, scaling to 7068 N at 0.9 MPa.
This model ships with a built-in magnet (-S) for CMSG/DMSG/EMSG sensor feedback and a centre trunnion mount (TC) complete with the TCM1 bracket (order code F-SC100TC), allowing the cylinder to pivot smoothly in swinging load applications. The default TPU seal handles -20 to +70 °C, and the PT port thread matches common pneumatic plumbing. Body length A(SCJ) is 245 mm, slightly longer than the fixed-stroke SC due to the rear adjusting mechanism.
Airtac SCJ100 Standard Cylinder SCJ100X75-10STC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-10STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 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 SCJ100X75-10STC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SCJ100X75-10STC Is Used
Format Changeover Stations
Packaging lines that switch between product sizes use the 10 mm screw adjustment to quickly reset the cylinder end position for different box heights or tray depths without mechanical rework.
Swinging Gate Actuators
The centre trunnion mount lets the cylinder pivot as it opens and closes a heavy transfer gate. The adjustable stroke fine-tunes the gate's closed position to compensate for seal wear over time.
Clamp Stroke Calibration
In a 3927 N clamping fixture, the rear screw dials in the exact clamp thickness. The built-in magnet confirms full clamp engagement via a CMSG sensor before the machine cycle continues.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-10STC the Right Cylinder?
Choose this 100 mm bore when your application needs around 3927 N of push force at standard plant air. If you can drop to roughly 2513 N, stepping down to an 80 mm bore saves space and air consumption; if you need more, the 125 mm bore delivers 6136 N push. The 10 mm adjustable stroke range is perfect for fine end-position tuning—if you need a wider adjustment window, consider the -20 or -30 variants. For fixed-stroke applications where no field adjustment is needed, the standard SC series is a simpler, lower-cost alternative. When replacing an existing unit, match the 100 mm bore, 75 mm nominal stroke, -10 adjust range, PT thread, centre trunnion mounting, and magnet-equipped specification exactly.
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 SCJ100X75-10STC FAQ
At 0.5 MPa, it generates 3927 N pushing and 3681 N pulling. At the maximum operating pressure of 0.9 MPa, push force reaches 7068 N. Because it is a single-rod cylinder, push force is always higher than pull force due to the rod area on the return side.
You can, provided the mounting and porting match, but the SCJ body is longer (A=245 mm) to house the rear adjusting screw. Ensure you have clearance behind the rear cap. The SCJ is a direct replacement only when you need the field-adjustable stroke feature; otherwise, the fixed-stroke SC100 is a more compact fit.
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