Airtac SCJ100 Standard Cylinder SCJ100X75-10
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-10 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 SCJ100X75-10
The SCJ100X75-10 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap adjusting screw provides up to 10 mm of stroke shortening, allowing precise end-position tuning without replacing the cylinder. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, making it suitable for medium-to-heavy linear actuation tasks where fine mechanical setup is required.
This 100 mm bore model uses a 25 mm diameter piston rod and PT1/2 ports. The adjustable air cushion decelerates the piston smoothly at both ends over a 29 mm cushion length. With a body length of 245 mm (A dimension), it shares the same mounting accessories as the fixed-stroke SC series, excluding flange FB and clevis CA/CB. The standard TPU seal operates reliably from -20 to +70 °C.
Airtac SCJ100 Standard Cylinder SCJ100X75-10 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-10 |
|---|---|
| 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 SCJ100X75-10
| 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 SCJ100X75-10 Is Used
Commissioning & Setup
Fine-tune the end-of-stroke position during machine commissioning. The 10 mm rear adjustment lets technicians dial in the exact stop point for grippers or clamps without fabricating custom shims or brackets.
Product Changeover
Adjust the push stroke for different product sizes on a packaging line. The screw mechanism allows operators to quickly shorten the stroke end when switching between box heights, reducing downtime during format changes.
Wear Compensation
Take up mechanical wear in linkage systems. As pivot points or tooling surfaces wear over time, the adjustable stroke can be slightly extended to maintain consistent final positioning without immediate parts replacement.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-10 the Right Cylinder?
Choose the SCJ100 bore when your application needs roughly 3900 N of push force at standard shop air. If you can work with less force, stepping down to an 80 mm bore reduces push force to 2513 N at 0.5 MPa and saves space. For higher demands, the 125 mm bore provides 6136 N. This model is a direct replacement for any AirTAC SCJ100X75-10 with PT ports and basic mounting. If your stroke never needs adjustment, the fixed-stroke SC100 series offers a simpler, more compact alternative. For strokes of 300 mm or more, consider an external guide or a guided cylinder to protect the 25 mm rod from side-load bending.
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 SCJ100X75-10 FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 7068 N. Pull force is lower because the rod reduces the effective piston area on the return stroke.
Yes, provided the mounting and port threads match. The SCJ body is slightly longer to house the adjusting screw. It is a direct dimensional swap for another AirTAC SCJ100X75-10 with PT ports and basic mounting. If you do not need stroke adjustability, the standard SC100 is a more cost-effective choice.
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