Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S
The AirTAC SAIJ100X290-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 5497N push force at 0.7MPa and features a 100mm adjustment range, creating a precise 190-290mm usable travel window for highly variable end-position tuning. The SUS304 stainless steel rod provides superior corrosion resistance, while the integrated magnet enables seamless position feedback.
This adjustable-stroke design allows you to dial in the exact retract distance during commissioning without swapping out the cylinder or adding external stops. It utilizes a PT G1/2 port and includes variable air cushions at both ends to decelerate heavy loads smoothly. The extruded aluminum barrel incorporates sensor grooves on both sides, fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 290 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 SAIJ100BX290-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×290 | 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 SAIJ100BX290-100S Is Used
Variable End-Stop Tuning
Leverage the 190-290mm usable travel window to quickly reconfigure retract distances during machine setup, ensuring precise positioning without mechanical rework.
Product Size Changeover
Adapt automated packaging lines to different carton dimensions on the fly by dialing back the stroke up to 100mm, eliminating the need to physically swap cylinders.
High-Force Positioning
Utilize the 5497N push force at 0.7MPa to move and halt heavy pallets or fixtures, relying on the adjustable stop to fine-tune the final resting coordinate.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-100S the Right Cylinder?
Choose this 100mm bore actuator when an application demands high thrust combined with flexible end-stop positioning, such as accommodating multiple product sizes on a single line. If your setup requires less force, stepping down to the 80mm bore yields 3518N push force at 0.7MPa; conversely, moving up to 125mm provides 8590N. For this 290mm stroke, the 25mm rod diameter and M20x1.5 rod thread offer substantial rigidity, but an external guide is still recommended to manage side loads over the extended travel.
The rear adjuster functions purely as a travel stop to set the end position, not as a locking device. It will not hold a load in place without continuous live air pressure. If your machinery requires true load-holding capability without pneumatic pressure, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder series instead. This SAIJ model supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ100BX290-100S FAQ
At an operating pressure of 0.7MPa, this 100mm bore cylinder provides a push force of 5497N and a pull force of 3681N. At 0.9MPa, the push force increases to 7068N.
The rear adjuster acts as an external stop that allows you to shorten the effective stroke by up to 100mm. This creates a usable travel window of 190-290mm from the 290mm nominal stroke, enabling fine-tuning of the retract position during commissioning without replacing the cylinder.
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