Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S
The AirTAC SAIJ100X90-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 90 mm nominal stroke that can be fine-tuned down by up to 40 mm, creating a precise 50 to 90 mm usable travel window for exact end-position calibration. In the 100 mm bore class, it delivers a robust 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa.
This variant includes a magnet for position sensing and uses a standard carbon steel piston rod with an M20x1.5 rod thread. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to mount AirTAC CMSE reed or DMSE electronic switches exactly where needed. It provides variable air cushions at both ends to decelerate heavy loads smoothly over the shortened travel distance.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 90 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 SAIJ100X90-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×90 | 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 SAIJ100X90-40S Is Used
Product Changeovers
Dial in the 50 to 90 mm travel window during production line changeovers to accommodate different package sizes without swapping cylinders.
Machine Setup
Fine-tune the end-of-stroke position during commissioning to precisely set the pressing or clamping depth for high-force operations.
Variable End Stops
Use the rear adjuster to create variable mechanical stops for assembly stations requiring flexible part positioning within the same tooling.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40S the Right Cylinder?
Select this 100 mm bore adjustable cylinder when an application requires high thrust combined with variable end-stops during machine setup or product-size changeovers. If your process demands less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa; stepping up to 125 mm provides 6136 N. Choose this SAIJ model over a fixed-stroke SAI when you need to dial in the 50 to 90 mm travel window on the fly without adding external physical stops.
For an exact ISO 15552 dimensional replacement, match the 100 mm bore, 90 mm stroke, 40 mm adjustment, PT tapered port threads, and the -S magnet option. Mounting is supported via Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the nominal stroke is under 300 mm, side-load stress on the M20x1.5 rod is manageable, but an external guide remains best practice for heavy loads. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For positive load-holding, use an external rod lock or explore the SAIL or BSAI series.
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 SAIJ100X90-40S FAQ
The rear adjuster acts as a mechanical stop that lets you trim the 90 mm nominal stroke back by up to 40 mm. This creates a usable travel window of 50 to 90 mm. It only sets the travel end and does not lock the load without continuous air pressure.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N, making it suitable for heavy-duty pressing and clamping tasks.
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