Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50
The AirTAC SAIJ100X325-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. Its 325mm nominal stroke can be dialed back by up to 50mm, providing a precise 275-325mm usable travel window. This built-in adjustability allows you to fine-tune end positions during commissioning without swapping out the entire actuator or fabricating external stops.
Featuring a robust 25mm carbon steel rod and an M20x1.5 thread, this extruded aluminum barrel handles demanding loads. The rear stopper sets the retract position but does not lock the load without live air pressure. It supports PT G1/2 ports, dual-side sensor grooves, and variable air cushions at both ends to manage kinetic energy.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 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 SAIJ100X325-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×325 | 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 SAIJ100X325-50 Is Used
Product Size Changeovers
Dial in the 275-325mm travel window on the fly to accommodate different material lengths during production line changeovers without changing the cylinder.
Commissioning End-Stop Tuning
Fine-tune the retract position during machine setup by turning the rear screw, eliminating the need to machine custom spacers or shim the mechanical stop.
Heavy Material Ejection
Leverage the 5497N push force at 0.7 MPa to eject heavy finished parts from a press, using the adjustable stroke to time the ejection distance perfectly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50 the Right Cylinder?
Choose this 100mm bore actuator when an application requires substantial thrust—such as 5497N push or 3681N pull at 0.7 MPa—along with variable end-stop positioning. If your setup needs less force, stepping down to an 80mm bore yields 3518N push at 0.7 MPa. The 50mm adjustment range is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder is better for rigid, unchanging endpoints. For exact ISO 15552 replacement matching, verify the 325mm stroke, 50mm adjuster, PT G1/2 port, and mounting style.
Because the 325mm stroke is relatively long, the unsupported rod is susceptible to side-loading; always use an external guide rail to prevent premature seal wear. Remember that the rear adjuster is a travel stop, not a holding brake. If the machine requires true load-holding without continuous air pressure, integrate an external rod lock or select 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 SAIJ100X325-50 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjuster acts as a mechanical stop that shortens the 325mm nominal stroke by up to 50mm, creating a 275-325mm usable travel window. It sets the end position but does not hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.