Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10
The AirTAC SAIJ100X425-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 415 to 425 mm. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 5497 N push force at 0.7 MPa. This made-to-order unit is designed for applications requiring exact end-position tuning without external stops.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Because the stroke extends past 300 mm, the 25 mm rod and M20x1.5 thread provide rigidity, though an external guide is recommended to manage side loads on long travels. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SAIJ100BX425-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SAIJ100BX425-10 Is Used
Machine Setup Changeover
Dial in the 415-425 mm retract position precisely during product family changeovers without machining new hard stops.
Variable End-Stop Positioning
Trim the effective stroke by up to 10 mm to accommodate slight variations in incoming pallet sizes on a transfer line.
Heavy Forming Press
Leverage the 5497 N push force at 0.7 MPa to form components while using the rear screw to tune the final bottoming position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10 the Right Cylinder?
Select this 100 mm bore when a smaller 80 mm cylinder (providing 3518 N push at 0.7 MPa) lacks the necessary thrust, but a 125 mm bore is excessive. The 10 mm adjustment range is ideal for fine-tuning the retract end during commissioning or product changeovers, avoiding the need to swap a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder, as the SAIJ adjuster is not a locking mechanism.
To match this exact configuration for an ISO 15552 replacement, specify a 100 mm bore, 425 mm stroke, 10 mm adjustment, PT ports, SUS304 rod material, and standard mounting options including Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that FB, CA, CB, and CR mounts are omitted from the SAIJ series.
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 SAIJ100BX425-10 FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder provides a push force of 5497 N and a pull force of 3681 N. It can reach a maximum push force of 801 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the nominal 425 mm stroke by up to 10 mm, creating a 415-425 mm travel window. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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