Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX275-20 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke275 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20
The AirTAC SAIJ100X275-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 20 mm, creating a precise 255-275 mm usable window. This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads.
The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. Because this is an adjustable-stroke variant, it utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on some fixed-stroke models. The rear adjuster acts purely as a travel stop and deceleration point, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20 |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20
| 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 SAIJ100BX275-20 Is Used
Machine Changeover
Dial in the exact 255-275 mm end-stop during product size transitions on a packaging line without physically swapping the actuator.
Fixture Positioning
Fine-tune the clamping travel on heavy machining fixtures where a fixed 275 mm stroke would over-travel or bottom out.
Press Assembly
Press components accurately into place, using the rear adjuster to compensate for material thickness variations on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-20 the Right Cylinder?
Choose this 100 mm bore cylinder when an application requires substantial thrust—up to 5497 N at 0.7 MPa—combined with on-the-fly end-position tuning. The adjustable stroke is ideal for product changeovers or fine-tuning a machine setup without swapping cylinders or adding external stops. For load-holding without continuous air supply, this cylinder is insufficient as the adjuster is not a lock; you should specify an SAIL (air-released lock) or BSAI (clamp-lock) model instead. Ensure your replacement matches the 100 mm bore, 275 mm stroke, 20 mm adjustment, PT ports, and the specified mounting style.
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 SAIJ100BX275-20 FAQ
The rear adjuster screw allows you to shorten the nominal 275 mm stroke by up to 20 mm, providing a usable travel window of 255 to 275 mm. This stopper sets the end position and deceleration point but does not lock or hold the load without live air pressure.
If operating at 0.7 MPa, the push force increases to 5497 N.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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