Airtac SCJ100 Standard Cylinder SCJ100X75-40
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-40 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 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-40 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X75-40
The AirTAC SCJ100X75-40 is a double-acting, single-rod pneumatic cylinder engineered for applications requiring precise, field-adjustable stroke termination. Its rear-cap adjusting screw provides up to 40 mm of fine-tuning on the stroke end, allowing you to dial in the exact stopping position without swapping the cylinder or adding external hard stops. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty clamping, pressing, and positioning tasks.
The cylinder features a 25 mm diameter piston rod and PT1/2 ports for ample flow. An integrated air cushion, 29 mm in length, decelerates the piston smoothly at the end of travel, reducing noise and vibration. The body length A for this adjustable-stroke model is 245 mm, providing a robust yet compact footprint for its force class. It operates on filtered air from 0.15 to 1.0 MPa across a temperature range of -20 to +70 °C.
Airtac SCJ100 Standard Cylinder SCJ100X75-40 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 40 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 SCJ100X75-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ100X75-40 Is Used
Commissioning & Setup
Ideal for integrators who need to precisely dial in the end-stop position during initial machine setup, accommodating real-world variations in tooling or fixtures.
Format Changeovers
Quickly adjust the stroke for different product sizes on packaging or material handling lines without mechanical modifications, reducing downtime between batches.
Wear Compensation
Take up slack from pad or gripper wear over time by simply turning the rear screw, maintaining consistent clamping force and part contact.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-40 the Right Cylinder?
Select the SCJ100X75-40 when your application demands a powerful 100 mm bore cylinder with the ability to fine-tune the stroke end by up to 40 mm during commissioning or changeovers. If you need more force, stepping up to the 125 mm bore provides 6136 N of push at 0.5 MPa. For a simpler, fixed-stroke solution, consider the standard SC series. A direct replacement must match the 100 mm bore, 75 mm nominal stroke, 40 mm adjust range, and PT port thread. For strokes over 300 mm, evaluate side-load forces and consider an external guide or a guided cylinder to protect the rod from bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ100X75-40 FAQ
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force due to the rod area. Maximum push force at 0.9 MPa is 7068 N.
A screw in the rear cap limits the piston's retraction, effectively shortening the stroke end by up to 40 mm from the nominal 75 mm. It does not adjust speed or output force.
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Related AirTAC SCJ Adjustable-Stroke Cylinders
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