Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75
The AirTAC SAIJ100X180-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 105 to 180 mm, allowing you to dial back the nominal 180 mm stroke by up to 75 mm during commissioning. Delivering 5497 N of push force at 0.7 MPa, it handles demanding positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This model is configured with a SUS304 stainless steel rod for corrosion resistance and a PT tapered port thread. The rear adjuster acts purely as a mechanical stop to fine-tune the end position and deceleration point without swapping the cylinder. It uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and operates reliably at speeds between 30 and 800 mm/s.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAIJ100BX180-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SAIJ100BX180-75 Is Used
Machine Changeover
Dial in the exact end position from 105 to 180 mm during product size changeovers without swapping cylinders or adding external stopper blocks.
Variable End Stops
Fine-tune the retract distance on packaging conveyors to handle different carton sizes, using the rear screw to set the precise travel limit.
Clamp Positioning
Adjust the clamping reach on the fly during setup, ensuring the 5497 N push force hits the exact required contact point every time.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-75 the Right Cylinder?
Choose this 100 mm bore when 80 mm falls short—yielding 5497 N push at 0.7 MPa versus the 80 mm bore's 3518 N. The 75 mm adjustment range is exceptionally wide, making it ideal for product-size changeovers on a line where the end-stop needs frequent recalibration over a long window. Unlike a fixed-stroke SAI cylinder, this adjustable variant lets you set the exact retract position on the fly without bolting on external stops.
Remember that the rear adjuster is a travel stop, not a lock; a plain SAIJ will not hold its load without live air pressure. For load-holding without continuous air, consider the SAIL or BSAI series. To match this exact SKU for an ISO 15552 replacement, specify bore 100, stroke 180, 75 mm adjustment, PT ports, SUS304 rod, and 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 SAIJ100BX180-75 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. It can deliver up to 801 kgf at its maximum 1.0 MPa pressure rating.
The rear adjuster screw lets you mechanically shorten the effective travel from the nominal 180 mm down to 105 mm, creating a 75 mm tuning window. It functions as a hard stop for end-position tuning, but it does not lock the load without live air pressure.
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