Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 170mm 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
- Stroke170 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S
The AirTAC SAIJ80X170-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and utilizes a 25mm carbon steel rod with an M20x1.5 thread. By turning the rear stopper screw, you can fine-tune the effective travel window down from 170mm to a 130-170mm range without adding external stops.
This unit includes a built-in magnet for position sensing via CMSE reed or DMSE electronic switches. It features variable air cushions at both ends to decelerate moving loads and shares the standard extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts solely as a travel stop and does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 170 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 SAIJ80X170-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×170 | 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 SAIJ80X170-40S Is Used
Machine Setup & Changeover
Dial in the exact 130-170mm end-stop during product size changes without swapping the cylinder or bolting on external stops.
Variable End-Position Damping
Use the rear screw alongside the 36mm air cushions to fine-tune the retract stroke and optimize deceleration for varying payloads.
Assembly Line Positioning
Provides 2513N of thrust at 0.5 MPa for pushing parts into fixtures, with CMSE/DMSE sensors confirming the adjusted end position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa), but without the larger footprint and air consumption of a 100mm bore. The 40mm adjustment range is ideal for product changeovers on a line, allowing operators to dial in the exact end-position mechanically. For holding a load safely without continuous air pressure, select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead of relying on the adjuster.
When replacing an ISO 15552 cylinder, match the 80mm bore, 170mm nominal stroke, 40mm adjustment requirement, and G3/8 PT tapered ports. This SAIJ model supports the reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 170mm stroke is below the 300mm threshold, side-load concerns are minimal, though the 25mm rod handles moderate offset loads well.
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 SAIJ80X170-40S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder generates 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it achieves a push force of 4523N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 170mm nominal stroke down to 130mm, creating a 130-170mm usable window. It only sets the travel end and does not hold the load without live air pressure.
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