Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX40-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke40 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S
The AirTAC SAIJ100X40-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated magnet supports position sensing via AirTAC CMSE reed and DMSE electronic switches. A standout feature is the 30mm adjustment range, which allows the 40mm nominal stroke to be dialed back to a 10mm minimum, creating a 10-40mm usable travel window for precise end-position tuning.
This model uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and pairs with PT tapered port threads (G1/2). The rear adjuster acts purely as a mechanical stop to set the travel limit; it does not lock or hold the load without continuous air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series. SAIJ mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SAIJ100AX40-30S Is Used
Machine Changeovers
Dial in the 10-40mm travel window during product size changes without physically swapping the cylinder or repositioning external stop blocks.
Commissioning Tuning
Fine-tune the retract end-position accurately at machine setup using the rear screw, ensuring perfect alignment before full production runs.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-30S the Right Cylinder?
Choose this 100mm bore cylinder when your setup requires substantial force (3927N at 0.5 MPa) alongside variable end-stop positioning. The 30mm adjustment capacity is ideal for machine changeovers, letting you fine-tune the 10-40mm travel window at commissioning without swapping cylinders or adding external stops. The SUS420J2 rod material handles harsher environments than standard carbon steel.
When replacing an ISO 15552 cylinder, match the 100mm bore, 40mm stroke, 30mm adjustment, G1/2 PT port, and the -S magnet requirement. Although the 40mm stroke is short, the 25mm rod thread (M20x1.5) handles high side loads, but any application approaching the 30-800mm/s speed limit should still use an external guide to prevent binding.
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 SAIJ100AX40-30S FAQ
At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw lets you mechanically shorten the 40mm nominal stroke by up to 30mm, providing a usable travel window of 10-40mm. The adjuster acts as a travel stop and does not hold the load without live air pressure.
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