Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S
The AirTAC SAIJ100X275-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 200 to 275 mm usable travel window, allowing you to dial back the 275 mm nominal stroke by up to 75 mm during commissioning. This bore size generates 3927 N of push force at 0.5 MPa and reaches 7068 N at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and features a built-in magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the unit uses a PT tapered G1/2 port. Mounting options are limited to the standard SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAIJ100BX275-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SAIJ100BX275-75S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance for machining or clamping operations without physically replacing the cylinder or adding external mechanical stops.
Product Size Changeover
Quickly adjust the 200-275 mm travel window to accommodate different product lengths on a packaging or sorting line during production transitions.
Commissioning Fine-Tuning
Perfect for dialing in the precise end-position during machine setup, compensating for mechanical tolerances directly at the rear adjustment screw.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-75S the Right Cylinder?
Choose this 100 mm bore cylinder when your application requires substantial thrust—such as the 3927 N push force at 0.5 MPa—but also demands variable end-stop positioning. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The adjustable stroke is ideal for product-size changeovers on a line, as the rear stopper fine-tunes the travel end without swapping the cylinder or adding external stops.
Because the nominal stroke is 275 mm, you should ensure adequate side-load support by using an external guide to prevent rod binding over long unsupported travel. Remember that the rear adjuster is a travel stop, not a lock; it will not hold the load without live air pressure. For true load-holding without continuous air, consider the SAIL or BSAI cylinder series. To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 275 mm stroke, 75 mm adjustment, PT G1/2 port, and the -S magnet option.
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 SAIJ100BX275-75S FAQ
This 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the 275 mm nominal stroke by up to 75 mm, creating a usable travel window of 200 to 275 mm. It only sets the end position and does not lock the load without live air pressure.
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