Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-100S 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 SAIJ100X270-100S
The AirTAC SAIJ100X270-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 170 to 270 mm. It integrates a magnetic piston for position sensing alongside standard PT tapered G1/2 ports and a carbon steel rod. In this 100 mm bore configuration, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa.
The generous 100 mm adjustment range allows operators to dial in exact end-of-stroke positions during machine setup or product changeovers without swapping out the cylinder body. It features an extruded aluminum barrel with sensor grooves on both sides, designed to accept AirTAC CMSE reed and DMSE solid-state switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-100S |
|---|---|
| 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 SAIJ100X270-100S
| 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 SAIJ100X270-100S Is Used
Variable End-Stop Forming
Dial in precise retract positions from 170 to 270 mm for stamping or forming machines that process multiple material lengths on a single fixture.
Product Changeover Diverters
Quickly adjust the actuation reach on packaging lines during format changes, using the 100 mm trim range to handle varying carton sizes without hardware swaps.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial commissioning to perfectly time the 3927 N push force against mechanical stops, preventing over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-100S the Right Cylinder?
Choose this 100 mm bore when your application requires roughly 3927 N of thrust at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. The adjustable stroke is selected over a fixed SAI cylinder when you need a variable end-stop for commissioning or accommodating multiple product sizes on one line. Because the 270 mm stroke exceeds 300 mm only marginally, side-load is moderate, but an external guide is still recommended for heavy lateral loads.
Remember that the rear adjuster acts purely as a travel stop to decelerate the piston alongside the air cushions; it does not hold the load without live air. For true load-holding without continuous pressure, consider the SAIL or BSAI cylinder series. To match this ISO 15552 footprint, specify the 100 mm bore, 270 mm stroke, 100 mm adjustment, PT port thread, 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 SAIJ100X270-100S FAQ
At an operating pressure of 0.5 MPa, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. It can reach up to 7068 N of push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 270 mm down to 170 mm, giving a 170-270 mm usable window. This stopper decelerates the piston at the retract end but does not lock the load without live air pressure.
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