Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40 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 SAIJ100X350-40
The AirTAC SAIJ100X350-40 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 350 mm stroke that can be fine-tuned down by up to 40 mm, creating a precise 310 to 350 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it handles heavy loads while allowing exact end-position calibration during commissioning.
This bore size features a robust 25 mm carbon steel rod with an M20x1.5 thread, paired with a G1/2 PT port. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. You can dial in the retract position without adding external stops, and the cylinder retains standard variable air cushions at both ends to decelerate the heavy 100 mm piston smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40 |
|---|---|
| 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 SAIJ100X350-40
| 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 SAIJ100X350-40 Is Used
Machine Setup Calibration
Dial in the exact 310 to 350 mm retract position during initial commissioning without machining external stopper blocks.
Product Size Changeovers
Quickly adjust the end-stop by up to 40 mm on a packaging line when transitioning between different product dimensions.
Heavy Material Handling
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets while fine-tuning the extension endpoint to match fixture tolerances.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X350-40 the Right Cylinder?
Select this 100 mm bore when an 80 mm cylinder (providing 2513 N push at 0.5 MPa) is insufficient, but a 125 mm bore is excessive. The adjustable 310-350 mm window is ideal for product changeovers where exact end-stops vary, saving the cost of swapping a fixed-stroke SAI cylinder. To replace an ISO 15552 cylinder, match the 100 mm bore, 350 mm stroke, 40 mm adjustment, G1/2 port, and mounting choice.
Because the 350 mm stroke is substantial, the 25 mm rod still requires an external guide to prevent excessive side-loading on the seals. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100X350-40 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 stroke by up to 40 mm from the 350 mm nominal length, providing a usable travel window of 310 to 350 mm. The adjuster acts as a mechanical stop and does not lock the load without live air pressure.
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