Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S
The AirTAC SAIJ100X80-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 80 mm stroke that can be dialed back by up to 20 mm, yielding a precise 60-80 mm usable travel window for fine-tuning end positions during commissioning. Delivering 3927 N of push force at 0.5 MPa, it handles heavy loads while utilizing a corrosion-resistant SUS304 stainless steel rod.
This model includes a magnet for CMSE reed and DMSE electronic sensors, which seat cleanly into the extruded aluminum barrel's dual sensor grooves. The rear adjuster functions strictly as a mechanical stop to set the retract end, meaning it does not hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or the AirTAC SAIL pneumatic locking cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100BX80-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SAIJ100BX80-20S Is Used
Machine Changeover
Dial in the 60-80 mm retract stop during product size changes on a packaging line without swapping out the entire cylinder.
End-Position Tuning
Fine-tune the exact clamping distance at commissioning using the rear adjuster to compensate for mechanical fixture tolerances.
Heavy Load Positioning
Move heavy assemblies with 3927 N of push force while relying on the built-in air cushions to decelerate the load smoothly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-20S the Right Cylinder?
Select this 100 mm bore cylinder when an application demands high thrust (3927 N at 0.5 MPa) alongside precise end-position tuning without adding external stops. If you need less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The adjustable 60-80 mm travel window is ideal for machine changeovers where the exact retract distance varies slightly. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. To match this configuration exactly, specify a 100 mm bore, 80 mm stroke, 20 mm adjustment, PT tapered ports, SUS304 rod material, and a magnet for CMSE/DMSE sensors. Because the stroke is under 300 mm, side-load concerns are minimal, but the robust 25 mm rod and M20x1.5 thread handle greater incidental side loads than smaller bores.
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 SAIJ100BX80-20S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the 80 mm nominal stroke by up to 20 mm. This creates a 60-80 mm adjustable travel window for fine-tuning the retract position without replacing the cylinder.
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