Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S
The AirTAC SAIJ100X145-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927N of push force at 0.5 MPa and features a SUS304 stainless steel rod (code B) for superior corrosion resistance. By utilizing the built-in rear screw, you can fine-tune the effective travel across a 45-145mm window without swapping out the entire unit.
This adjustable-stroke design is perfect for machine setups requiring variable end-stops during product changeovers. It includes a magnet for position sensing and uses a PT tapered port. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic solid-state switches exactly where needed.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 145 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 SAIJ100BX145-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×145 | 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 SAIJ100BX145-100S Is Used
Variable End-Stop Tuning
Dial in the exact retraction point within the 45-145mm window during machine commissioning to accommodate different product sizes without adding external mechanical stops.
Product Line Changeover
Rapidly adjust the stroke length on packaging or sorting lines to handle varying package dimensions, minimizing downtime between production runs.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for reliable, high-force actuation in washdown or mildly corrosive manufacturing environments where carbon steel rods would fail.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-100S the Right Cylinder?
Choose this 100mm bore when an 80mm bore (providing 2513N push at 0.5MPa) lacks the necessary thrust, but you want to avoid stepping up to a 125mm cylinder. The generous 100mm adjustment range is ideal for applications needing frequent, wide-ranging end-position modifications at commissioning, whereas a fixed-stroke SAI cylinder is better suited for static, repetitive movements.
Remember that the rear adjuster functions strictly as a travel stop, not a locking device; it cannot hold a load without continuous live air pressure. For load-holding requirements without air, consider an external rod lock or AirTAC SAIL and BSAI series cylinders. To replace an ISO 15552 cylinder, match the 100mm bore, 145mm stroke, G1/2 port, PT thread, and -S magnet.
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 SAIJ100BX145-100S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 145mm stroke by up to 100mm. This creates a usable travel window of 45-145mm, enabling precise end-position tuning without replacing the cylinder.
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