Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-50 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 SAIJ100X90-50
The AirTAC SAIJ100X90-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 40 to 90 mm, allowing you to dial back the 90 mm nominal stroke by up to 50 mm without adding external stops. Belonging to the 100 mm bore class, it delivers a robust 3927 N push force at 0.5 MPa and utilizes a G1/2 port for optimal airflow.
This extruded aluminum profile cylinder incorporates variable air cushions at both ends to manage end-of-stroke deceleration. The 25 mm carbon steel piston rod and M20x1.5 rod thread provide substantial rigidity, handling higher side loads than smaller bores, though external guidance is still recommended for heavy lateral forces. It supports a versatile mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-50 |
|---|---|
| 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 SAIJ100X90-50
| 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 SAIJ100X90-50 Is Used
Machine Changeover
Fine-tune the 40-90 mm travel window during product size transitions to set new retract positions without physically swapping cylinders.
End-Position Trimming
Dial in the exact retract distance on automated equipment, using the rear stopper to compensate for mechanical wear over time.
Assembly Station Setup
Adjust the effective stroke during commissioning of a new assembly line to achieve the perfect pressing depth before final lockdown.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-50 the Right Cylinder?
Choose this 100 mm bore when your application requires significantly more thrust than a neighboring 80 mm bore, which provides 2513 N of push force at 0.5 MPa. The adjustable stroke is ideal for machine setup and product changeover, letting you fine-tune the retract end-position on the fly rather than swapping out a fixed-stroke SAI cylinder.
Because the rear adjuster functions strictly as a travel stop and the cushions manage deceleration, this cylinder will not hold a load without continuous live air pressure. For load-holding requirements without air, consider the SAIL or BSAI series, or integrate an external pilot-operated check valve. For a direct ISO 15552 replacement, match the 100 mm bore, 90 mm stroke, 50 mm adjustment, PT port thread, and your required mounting hardware. No magnet is specified, so position sensing requires a separate solution rather than AirTAC CMSE or DMSE switches.
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 SAIJ100X90-50 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates a push force of 3927 N and a pull force of 3681 N. At the maximum 1.0 MPa pressure, the push force reaches 801 kgf.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 90 mm nominal stroke down to as little as 40 mm. This creates a 40-90 mm usable window, allowing precise end-position tuning without replacing the cylinder.
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