Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 195mm 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
- Stroke195 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S
The AirTAC SAIJ80X195-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the effective travel to any point within a 155 to 195 mm window. Delivering a robust 2513 N pull force at 0.5 MPa, it features a 25 mm carbon steel rod and PT tapered ports for secure pneumatic connections. The extruded aluminum barrel includes sensor grooves on both sides to support position feedback.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors. The rear adjuster acts purely as a mechanical stop for end-position tuning at commissioning; it does not lock the load without live air pressure. For load-holding without continuous pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 195 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 SAIJ80X195-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×195 | 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 SAIJ80X195-40S Is Used
Variable End-Stop Tuning
Dial in the exact retraction point between 155 and 195 mm during commissioning to accommodate varying material thicknesses without adding external mechanical stops.
Product Changeover
Quickly adjust the cylinder's travel window on the production line when switching between different product sizes, reducing downtime and avoiding cylinder replacement.
Assembly Press Fitting
Leverage the 2513 N pull force at 0.5 MPa to seat components securely, using the rear adjuster to fine-tune the pressing depth for delicate or precision parts.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-40S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires high thrust (up to 2513 N pull at 0.5 MPa) alongside a variable end-stop. If your force requirements are lower, a 63 mm bore provides 1402 N of pull force, whereas stepping up to a 100 mm bore yields 3681 N. The adjustable stroke is ideal for machine setups requiring fine-tuning during product changeovers without swapping out the entire cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 195 mm nominal stroke, 40 mm adjustment range, PT port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the stroke is under 300 mm, side-load risks are minimal, but external guides remain recommended for heavy radial loads.
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 SAIJ80X195-40S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of pull force and 3518 N of push force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjusting screw allows you to shorten the effective stroke by up to 40 mm from the 195 mm nominal length, creating a usable travel window of 155 to 195 mm. The adjuster functions as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
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