Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S
The AirTAC SAIJ100X800-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 3927 N of push force at 0.5 MPa and features a generous 800 mm nominal stroke that can be fine-tuned down by up to 40 mm, creating a usable travel window of 760 to 800 mm. This built-in adjustability allows you to dial in the exact end position during commissioning without swapping out the entire cylinder.
This variant includes a magnet for position sensing and uses a carbon steel piston rod with an M20x1.5 thread. The extruded aluminum barrel incorporates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Fluid must be filtered to 40 um, and the cylinder operates efficiently between 30 and 800 mm/s.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100X800-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SAIJ100X800-40S Is Used
Product Changeover Diverter
Quickly adjust the 760-800 mm stroke window to accommodate different package sizes on a packaging line without changing the cylinder mounting.
Long-Stroke Press Ejection
Utilizes the 3927 N push force at 0.5 MPa to reliably eject heavy finished parts from a press bed over an extended 800 mm travel distance.
Machine Setup Fine-Tuning
Leverage the 40 mm rear adjuster screw to perfectly time the end-of-stroke position during initial machine commissioning, avoiding mechanical hard stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-40S the Right Cylinder?
Choose this 100 mm bore when your application requires substantial thrust, such as 3927 N push or 3681 N pull at 0.5 MPa. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N push force, saving physical space and air consumption. The adjustable stroke is ideal for product changeovers on a line, letting you shift the end-stop by up to 40 mm without adding external stopper blocks. For a fixed end position, the standard SAI cylinder is a simpler alternative.
Because this cylinder features an 800 mm stroke, the M20x1.5 rod and carbon steel construction handle significant loads, but an external guide is strongly recommended to prevent excessive side-loading on the piston rod over long unsupported travels. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air; for true position holding without pneumatic pressure, consider the SAIL or BSAI locking cylinders. This SAIJ model uses PT tapered ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ100X800-40S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 5497 N.
The rear adjuster screw allows you to shorten the effective travel by up to 40 mm from the 800 mm nominal stroke, providing an adjustable end-position window of 760 to 800 mm. This stopper only sets the travel end and does not lock the load without continuous air pressure.
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