Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 270mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S
The AirTAC SAIJ80X270-100-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 170-270 mm usable travel window, allowing you to dial back the nominal 270 mm stroke by up to 100 mm during machine commissioning. This 80 mm bore generates 2513 N of push force and 2268 N of pull force at 0.5 MPa, fitting heavy-duty positioning tasks.
Equipped with a carbon steel rod and an M20x1.5 thread, this unit handles higher side loads than smaller bores, though the 270 mm stroke still benefits from an external guide for unsupported loads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. It supports a speed range of 30-800 mm/s and uses PT tapered G3/8 ports.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80X270-100S Is Used
Product Changeover Systems
Quickly reconfigure the 170-270 mm travel window for different package sizes on a packaging line without changing hardware.
Machine Setup Tuning
Fine-tune the exact end-of-stroke position during initial commissioning to perfect pressing or lifting operations.
Heavy Positioning Stops
Leverage the 2513 N push force to move heavy pallets while relying on the rear stopper to set precise dwell depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust—stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, while stepping up to a 100 mm bore yields 3927 N. The 100 mm adjustment range is ideal for product-size changeovers, letting you set variable end-stops without physically swapping the cylinder or adding external stopper blocks. A fixed-stroke SAI cylinder is simpler but lacks this on-the-fly travel tuning.
Because the 270 mm stroke exceeds 300 mm? No, but it approaches it, so an external guide rail is recommended to prevent rod sag and premature seal wear. Remember that the rear adjuster acts only as a travel stop and the air cushions only manage deceleration; neither will hold a load without live air pressure. For fail-safe load holding, consider the SAIL pneumatic lock or BSAI clamp-lock series. This SAIJ model uses the reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable with ISO 15552 cylinders.
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 SAIJ80 Adjustable Cylinder SAIJ80X270-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers 513 kgf.
The rear adjuster screw lets you mechanically shorten the effective travel from 270 mm down to 170 mm, creating a 100 mm adjustable window. It acts as a physical stop to set the end position and does not lock the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.