Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S
The AirTAC SAIJ100X50-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 50mm stroke that can be fine-tuned backward by up to 40mm, creating a precise 10-50mm usable travel window for exact end-position calibration. Delivering 3927N of push force at 0.5MPa, it handles heavy positioning tasks with ease. This variant includes a standard magnet for position sensing and uses a carbon steel rod with an M20x1.5 thread.
Equipped with variable air cushions at both ends, this extruded aluminum barrel cylinder decelerates loads smoothly. The rear adjustment screw acts purely as a mechanical stop to set the retraction endpoint and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S Is Used
Press Fit Calibration
Dial in the exact insertion depth within the 10-50mm window during product changeovers without replacing the cylinder or adding external stops.
Variable End-Stop Setup
Quickly adjust the retraction endpoint on assembly lines to accommodate different part sizes using the rear 40mm adjustment screw.
Heavy-Duty Positioning
Leverage the 3927N push force at 0.5MPa to move heavy jigs into place, relying on the ISO 15552 footprint for rigid mounting.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S the Right Cylinder?
Choose this 100mm bore cylinder when an application demands high force combined with variable end-stops, such as pressing or forming operations that require minor stroke tweaks during setup. If you need less force, stepping down to an 80mm bore yields 2513N at 0.5MPa. If you require heavier thrust, moving up to a 125mm bore provides 6136N at 0.5MPa.
The adjustable stroke is ideal for machine changeovers, allowing operators to dial in the 10-50mm travel window without swapping hardware. This -S model supports AirTAC CMSE reed and DMSE electronic sensors via the dual-side sensor grooves. It features a PT port thread and a G1/2 port size. Since the stroke is 50mm, side-load risks are minimal, but always ensure the load is guided to prevent binding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-40S FAQ
The rear adjuster screw allows you to shorten the 50mm nominal stroke by up to 40mm, providing a usable travel window of 10-50mm. It acts as a mechanical stop to fine-tune the end position and requires live air to hold the load.
At 0.5MPa, it provides 3927N of push force and 3681N of pull force. At the maximum operating pressure of 1.0MPa, the push force reaches 801kgf.
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