Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10S 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 SAIJ100BX425-10S
The AirTAC SAIJ100X425-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, providing 3927N of push force and 3681N of pull force at 0.5 MPa. The integrated -10 adjustment mechanism allows you to fine-tune the effective travel within a 415-425mm window, which is ideal for precision machine setup without needing external stops.
This model features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet (-S) for position sensing. You can mount AirTAC CMSE reed or DMSE electronic solid-state switches directly into the sensor grooves machined on both sides of the extruded aluminum barrel. It utilizes a G1/2 port and offers variable air cushions at both ends to manage kinetic energy.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10S |
|---|---|
| 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 SAIJ100BX425-10S
| 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 SAIJ100BX425-10S Is Used
Precision Machine Setup
Dial in the exact 415-425mm retract position during equipment commissioning to achieve perfect end-stop alignment without machining custom spacers.
Product Size Changeover
Quickly adjust the stroke end point on packaging lines when handling different product lengths, using the rear screw to trim up to 10mm of travel.
Heavy-Duty Positioning
Leverage the 3927N push force at 0.5 MPa to move heavy pallets or fixtures, relying on the SUS304 rod for durability in industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX425-10S the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder lacks sufficient power, as the 80mm variant yields 2513N of push force at 0.5 MPa compared to the 3927N generated here. The adjustable 415-425mm travel window is selected over a fixed-stroke SAI cylinder when commissioning requires micro-adjustments to the retract end position during product changeovers. Because the stroke is 425mm, an external guide should be used to prevent excessive side loading on the piston rod.
To replace this cylinder per ISO 15552 mounting-interface dimensions, match the 100mm bore, 425mm stroke, 10mm adjustment, PT tapered port threads, and the -S magnet. Note that the rear adjuster acts only as a travel stop and 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 options, omitting FB, CA, CB, and CR.
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 SAIJ100BX425-10S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 425mm stroke by up to 10mm, creating a 415-425mm usable travel window. It is a stop only, not a lock, and the cylinder still requires live air to hold the load.
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