Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S
The AirTAC SAIJ100X270-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 220 to 270 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial loads while allowing precise end-position tuning during commissioning. The SUS304 stainless steel rod offers high corrosion resistance for demanding environments.
This model includes a magnet for position sensing and uses a PT tapered G1/2 port. The rear adjuster acts purely as a travel stop to decelerate the piston, not as a lock, meaning live air is required to maintain the load. It supports standard AirTAC CMSE reed and DMSE electronic sensors mounted into the dual-side barrel grooves.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 270 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 SAIJ100BX270-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×270 | 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 SAIJ100BX270-50S Is Used
Product Size Changeover
Quickly dial the rear adjuster back by up to 50 mm when switching a packaging line to a shorter container, ensuring precise positioning without mechanical rebuilds.
Machine Setup Fine-Tuning
Perfect the final clamping position of a 3927 N press during commissioning, using the 220-270 mm travel window to avoid tooling damage.
Variable End-Stop Forming
Adjust the stroke end dynamically for metal forming applications where material thickness variations require a slightly retracted end position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-50S the Right Cylinder?
Choose this 100 mm bore when the 80 mm class (2513 N push at 0.5 MPa) is insufficient for your tooling weight. The 50 mm adjustment range is ideal for production lines running mixed product sizes, letting you dial in the exact end-stop without adding external physical stops or swapping the cylinder. For load-holding without continuous air pressure, integrate an external pilot-operated check valve or select the AirTAC SAIL or BSAI locking cylinders instead.
To replace an ISO 15552 cylinder, match the 100 mm bore, 270 mm nominal stroke, 50 mm adjustment, PT G1/2 port, and -S magnet. Because the 270 mm stroke is relatively long, ensure external guide rails are used to prevent excessive side-loading on the SUS304 rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ100BX270-50S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjuster screw allows you to shorten the effective travel from the 270 mm nominal stroke down to 220 mm. It functions as a mechanical stop to set the retract end position and does not lock the load without live air pressure.
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Standard models usually ship in 3-4 days.
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