Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S
The AirTAC SAIJ100X350-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 310-350 mm usable travel window, allowing you to dial back the 350 mm nominal stroke by up to 40 mm during commissioning without adding external stops. Delivering 3927 N of push force at 0.5 MPa, it handles heavy-duty positioning tasks with precision.
This model includes a standard carbon steel rod and a -S magnet for position sensing. The integrated sensor grooves on both sides of the extruded aluminum barrel accept CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop to fine-tune the end position, while the variable air cushions manage end-of-stroke deceleration.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100X350-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100X350-40S Is Used
Machine Changeover
Dial in the exact end-stop position within the 310-350 mm window when switching product sizes on a packaging line, avoiding physical cylinder swaps.
End-Position Tuning
Fine-tune the retract stroke during commissioning to perfect mechanical alignment, using the rear screw rather than adding external shims.
Heavy Load Positioning
Leverage the 3927 N push force to move heavy fixtures, relying on the built-in air cushions to decelerate the load smoothly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40S the Right Cylinder?
Choose this 100 mm bore when the 80 mm class (2513 N push at 0.5 MPa) lacks thrust, but step down if 6136 N from the 125 mm bore is required. An adjustable-stroke cylinder is selected over a fixed SAI when a machine requires variable end-stops or easy product changeover tuning. For a drop-in ISO 15552 replacement, match the 100 mm bore, 350 mm stroke, 40 mm adjustment, PT tapered G1/2 ports, and the -S magnet.
Because the 350 mm stroke is substantial, the 25 mm rod diameter provides rigidity, yet an external guide is recommended to prevent side-loading damage on long unsupported travels. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air pressure, specify an AirTAC SAIL or BSAI cylinder.
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 SAIJ100X350-40S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective travel from the 350 mm nominal stroke down to 310 mm. This stopper fine-tunes the retract end position but does not lock the load without continuous air pressure.
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