Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S
The AirTAC SAIJ80X290-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 4523N of push force at 0.9 MPa and provides a usable travel window of 190 to 290 mm, allowing you to trim the nominal 290 mm stroke back by up to 100 mm during machine setup. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches.
Equipped with a 25 mm carbon steel rod and an M20x1.5 thread, this 80 mm bore cylinder handles substantial side loads, though its 290 mm stroke still necessitates an external guide to prevent rod binding. The rear adjustment mechanism acts purely as a mechanical stop for end-position tuning and deceleration; it is not a lock. For load-holding without live air pressure, you must use an SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external pilot-operated check valve.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80X290-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80X290-100S Is Used
Product Changeover Lines
Dial the travel back by up to 100 mm instantly when switching product sizes on a conveyor, avoiding the need to physically swap out the entire cylinder assembly.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to achieve exact 190-290 mm travel windows without relying on external shims or spacer blocks.
Sensor-Driven Automation
Leverage the built-in magnet and dual sensor grooves to mount CMSE reed or DMSE electronic switches for precise position feedback across the adjusted stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X290-100S the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires variable end-stops or precise fine-tuning at commissioning without physically swapping the cylinder or adding external stopper blocks. If your process needs less force, stepping down to a 63 mm bore yields 2805N of push at 0.9 MPa, whereas stepping up to a 100 mm bore provides 7068N for heavier loads.
To ensure a true ISO 15552 replacement match, verify the 80 mm bore, 290 mm nominal stroke, 100 mm adjustment range, PT G3/8 tapered port, and the required magnet (-S). Note that SAIJ supports a specific subset of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR. Because the 290 mm stroke approaches the mid-range of supported travel, always pair it with an external guide to manage side loads and preserve the 25 mm rod.
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 SAIJ80X290-100S FAQ
At 80 mm bore, this cylinder provides 2513N of push force at 0.5 MPa and up to 4523N at 0.9 MPa. The pull force is 2268N at 0.5 MPa and 4071N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 290 mm down to as little as 190 mm. It only sets the end position and deceleration; it does not hold the load without live air pressure.
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