Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX185-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20
The AirTAC SAIJ80X185-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel to a precise 165-185 mm window. This made-to-order configuration ships with an SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and PT tapered port threads.
Because the adjuster acts purely as a mechanical stop at the retract end, it sets the deceleration point without holding the load in the absence of live air. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SAIJ80AX185-20 Is Used
Machine Changeover
Dial in the 165-185 mm retract stop during product size changes without physically swapping cylinders or repositioning hard stops.
End-Position Tuning
Fine-tune the final deceleration point at commissioning to perfectly align parts, utilizing the rear screw to trim up to 20 mm of travel.
Variable End Stops
Set distinct retract positions for different automated routines on the same line, leveraging the adjustable window for flexible tooling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-20 the Right Cylinder?
The 20 mm adjustment range is ideal for machine setups requiring variable end-stops or product changeovers, allowing you to dial in the exact 165-185 mm position without swapping out the cylinder or adding external stops. For load-holding without continuous air pressure, this standard SAIJ adjuster will not suffice; consider an AirTAC SAIL or BSAI locking cylinder instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 185 mm nominal stroke, 20 mm adjustment range, G3/8 PT port, and the chosen mounting hardware. Since the 185 mm stroke is relatively short, side-load stress on the 25 mm rod is minimal, though external guides are always recommended for heavy lateral 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 SAIJ80AX185-20 FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop that shortens the 185 mm nominal stroke by up to 20 mm, giving a usable travel window of 165 to 185 mm. It only sets the travel end and does not lock the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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