Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-40 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 SAIJ100BX145-40
The AirTAC SAIJ100X145-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 145 mm travel back by up to 40 mm, creating a precise 105-145 mm usable end-position window. It delivers 3927 N of push force at 0.5 MPa and utilizes a SUS304 stainless steel rod for superior corrosion resistance.
This adjustable model omits the FB, CA, CB, and CR mountings, offering a reduced ISO 15552 interface set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear screw acts purely as a travel stop for commissioning tuning and does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-40 |
|---|---|
| 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 SAIJ100BX145-40
| 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 SAIJ100BX145-40 Is Used
Machine Changeover
Dial in the exact retract distance during product size changes on a packaging line without physically swapping cylinders or installing external mechanical stops.
End-Position Tuning
Trim the 145 mm stroke back by up to 40 mm to perfectly time the mating of heavy assemblies, compensating for mechanical wear or sensor variance at commissioning.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod in high-washdown or corrosive manufacturing environments while maintaining a 3927 N push force at 0.5 MPa.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX145-40 the Right Cylinder?
Choose this 100 mm bore when the 50 mm bore class (offering 982 N at 0.5 MPa) is insufficient, but you want to avoid the larger 125 mm footprint. The 40 mm adjustment window is ideal for product changeovers, allowing you to fine-tune the retract end-position without swapping the cylinder or adding external stops.
For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster is a stop, not a brake, so you would need a SAIL lock, BSAI clamp-lock, or external pilot-operated check valve. Replacement match: 100 mm bore, 145 mm stroke, 40 mm adjust, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mount, no 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 SAIJ100BX145-40 FAQ
It features a rear adjusting screw that lets you shorten the effective stroke by up to 40 mm, providing a usable travel window of 105 to 145 mm. This allows fine-tuning of the end position at commissioning without changing the cylinder.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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