Airtac SAIJ100 Adjustable Cylinder SAIJ100BX90-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX90-20S 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 SAIJ100BX90-20S
The AirTAC SAIJ100X90-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel end. With a nominal 90 mm stroke and a 20 mm adjustment range, you get a usable travel window of 70 to 90 mm to perfectly dial in your end position without swapping hardware. It delivers robust thrust, providing 3927 N of push force and 3681 N of pull force at 0.5 MPa, scaling up to 7068 N push at 0.9 MPa.
Built for demanding environments, this unit includes a SUS304 stainless steel rod for superior corrosion resistance and carries the -S magnet for position sensing with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel provides sensor grooves on both sides, and the G1/2 PT tapered ports ensure a tight, leak-free pneumatic connection.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX90-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX90-20S |
|---|---|
| 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 SAIJ100BX90-20S
| 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 SAIJ100BX90-20S Is Used
Machine Setup & Changeover
Dial in the exact 70-90 mm travel end-stop during line changeovers without machining new spacers or replacing the entire cylinder.
Variable End-Position Tuning
Fine-tune the retract end position during commissioning to perfect part ejection or clamping depth on the fly.
Product-Size Adaptation
Quickly adjust the effective stroke to accommodate slightly different product sizes on the same production line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX90-20S the Right Cylinder?
Choose this 100 mm bore when you need heavy force capacity combined with precise end-position tuning during commissioning or product changeover. If your application requires less force, stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The adjustable rear stopper on this SAIJ model is strictly a travel stop, not a lock; it will not hold a load without live air. For true load-holding without continuous pressure, consider an AirTAC SAIL or BSAI cylinder.
This SAIJ100X90-20-S is dimensionally interchangeable per ISO 15552 standards. When replacing a cylinder, match the 100 mm bore, 90 mm nominal stroke, 20 mm adjuster, G1/2 PT ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
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 SAIJ100BX90-20S FAQ
At a standard 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a stopper that lets you shorten the effective stroke from the nominal 90 mm down to 70 mm. It sets the travel end and deceleration, but it is not a lock and will not hold the load without continuous air pressure.
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Standard models usually ship in 3-4 days.
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