Airtac SCJ100 Standard Cylinder SCJ100X75-30
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 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-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X75-30
The SCJ100X75-30 is a double-acting, single-rod pneumatic cylinder that delivers substantial force in a compact tie-rod body, with a rear adjusting screw providing up to 30 mm of fine-tuned stroke-end control. At 0.5 MPa it generates 3927 N of push force and 3681 N on the pull stroke, making it a strong candidate for pressing, clamping, and material-handling stations where the final stop position must be dialled in precisely during commissioning or after tooling wear.
The 100 mm bore houses a 25 mm diameter piston rod and breathes through PT1/2 ports, with an adjustable air cushion absorbing end-of-stroke impact over a 29 mm cushion length. The body length A(SCJ) is 245 mm for the base cylinder, and the field-adjustable stroke end lets you shorten the 75 mm nominal stroke by up to 30 mm without swapping the cylinder or adding external hard stops.
Airtac SCJ100 Standard Cylinder SCJ100X75-30 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 30 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 SCJ100X75-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ100X75-30 Is Used
Commissioning & Fine-Tuning
Dial in the exact end-of-stroke position during machine setup without machining new stops. The 30 mm adjustment range on the SCJ100X75-30 lets commissioning engineers quickly compensate for stack-up tolerances in weldments or fabricated frames.
Wear Take-Up on Clamp Units
As gripper pads or clamp faces wear over thousands of cycles, the adjustable screw can be turned to restore the original clamping gap, keeping cycle time and part quality consistent without replacing the cylinder or tooling.
Format Changeover Stations
When a packaging line switches between product sizes, the SCJ100X75-30 allows operators to quickly adjust the push stroke for different box heights or pallet layers, reducing changeover time compared to fixed-stroke cylinders.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-30 the Right Cylinder?
Step up to the 125 mm bore SCJ when you need more than 6136 N push at 0.5 MPa; step down to the 80 mm bore if 2513 N is sufficient and you want a lighter, more compact unit. Choose a fixed-stroke SC cylinder when the stroke never changes, or a guided cylinder if the 75 mm stroke and 25 mm rod risk side-load deflection. A direct replacement must match the 100 mm bore, 75 mm nominal stroke, 30 mm adjust range, PT1/2 ports, and basic mounting; add the -S suffix if a magnet is needed for barrel-mounted sensors.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ100X75-30 FAQ
At the standard 0.5 MPa operating pressure, the cylinder produces 3927 N of push force (full bore area) and 3681 N of pull force (bore area minus the 25 mm rod). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 7854 N. Always size for the pull force if the cylinder must retract a load.
A rear-cap adjusting screw sets the stroke end position, letting you shorten the 75 mm nominal stroke by up to 30 mm. Pick the SCJ when you need to fine-tune the stop point during commissioning, accommodate tooling wear, or handle frequent format changes. Choose a fixed-stroke SC if the stroke is permanently fixed, as it is simpler and slightly shorter in overall length.
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