Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40 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 SAIJ100X90-40
The AirTAC SAIJ100X90-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 50-90 mm usable travel window from the 90 mm nominal stroke. Operating at 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, making it suitable for medium-to-heavy actuation. The extruded aluminum barrel includes sensor grooves on both sides, and the carbon steel rod provides durable, high-load operation.
This model uses a G1/2 port and a variable air cushion at both ends to decelerate the load. The rear adjustment screw allows you to fine-tune the retract end position at commissioning without adding external stops or swapping the cylinder. The adjuster and cushions act as travel stops for deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40 |
|---|---|
| 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 SAIJ100X90-40
| 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 SAIJ100X90-40 Is Used
Machine Changeover
Dial in the exact retract position within the 50-90 mm window during product size changes without re-mounting the cylinder.
End-Stop Tuning
Use the rear adjuster to fine-tune the final end position at commissioning, absorbing mechanical tolerance variations.
Heavy Load Actuation
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures while controlling the travel limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-40 the Right Cylinder?
Choose this 100 mm bore if your application requires the 3927 N push force at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. The 40 mm adjustment range is ideal for product changeovers on a line where the exact retract position varies by up to 40 mm, replacing the need to physically swap a fixed-stroke SAI cylinder. Because the 90 mm stroke is below the 300 mm threshold, side-load stress is minimal, but an external guide is still recommended for heavy loads.
To match this ISO 15552 interchangeable cylinder for a replacement, verify the 100 mm bore, 90 mm stroke, 40 mm adjustment, PT tapered port threads, and the standard carbon steel rod. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts. If position holding without live air is required, look to the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ100X90-40 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. It can reach a maximum push force of 7068 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 90 mm nominal stroke by up to 40 mm, giving a usable travel window of 50 to 90 mm. It acts as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
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