Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-40 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 SAIJ100BX80-40
The AirTAC SAIJ100X80-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel. With a nominal 80mm stroke and a 40mm adjustment range, the usable travel window spans 40 to 80mm. This enables precise end-position tuning at commissioning without swapping out the physical cylinder. At 0.5 MPa, it provides 3927N of push force and 3681N of pull force.
This specific configuration includes a SUS304 stainless steel piston rod (option B) for superior corrosion resistance, alongside PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing direct mounting of position switches if a magnet is specified later. The rear adjuster acts strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-40 |
|---|---|
| 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 SAIJ100BX80-40
| 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 SAIJ100BX80-40 Is Used
Product Changeover
Dial in the stroke from 80mm down to 40mm instantly on the line when switching to a different product size, eliminating the need to physically swap cylinders.
End-Stop Tuning
Fine-tune the final retracted position during machine commissioning to achieve exact alignment without adding external mechanical stops.
High-Force Positioning
Leverage the 3927N push force at 0.5 MPa to move heavy pallets or fixtures while retaining the flexibility to adjust the travel limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX80-40 the Right Cylinder?
Selecting this 100mm bore model is ideal when your application requires high thrust (up to 3927N at 0.5 MPa) but demands a variable end-stop within a 40 to 80mm window. If your force requirements are lower, stepping down to an 80mm bore yields 2513N of push force at 0.5 MPa. Choose the adjustable SAIJ over a fixed-stroke SAI when you need on-the-fly end-position tuning during machine setup or product changeover.
Because the 80mm stroke is relatively short, side-loading is less of a concern than with longer strokes. Remember that the rear adjuster only sets the travel end; it does not hold the load. For load-holding without live air pressure, consider an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder. To match this exact configuration, specify: 100mm bore, 80mm stroke, 40mm adjustment, PT port, SUS304 rod (B), and no magnet.
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 SAIJ100BX80-40 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 40mm. This creates a usable travel window of 40 to 80mm, which can be fine-tuned during commissioning without changing the cylinder.
Operating at 0.5 MPa, the SAIJ100X80-40 provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
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