Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX185-30S 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 SAIJ80AX185-30S
The AirTAC SAIJ80X185-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513 Newtons of pull force at 0.5 MPa, utilizing a PT G3/8 port and a 25 mm SUS420J2 stainless steel rod. The built-in rear stopper allows you to fine-tune the effective travel down to a 155-185 mm window, providing precise end-position control without adding external stops.
This adjustable-stroke design is ideal for product changeovers, letting you dial in the exact retraction distance during commissioning. The extruded aluminum barrel features sensor grooves on both sides for CMSE reed and DMSE electronic switches. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on other variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-30S |
|---|---|
| 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 SAIJ80AX185-30S
| 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 SAIJ80AX185-30S Is Used
Product Changeover Dials
Quickly reconfigure the 155-185 mm retraction distance on packaging lines when switching to different package sizes, using the rear screw to set new end-stops without disassembling the actuator.
End-Position Tuning
Trim the nominal 185 mm stroke by up to 30 mm during machine commissioning to achieve exact contact timing, avoiding the need to swap out the entire cylinder for a shorter standard unit.
Adjustable Pressing Stops
Set precise, repeatable pressing depths in assembly stations where multiple operations require slightly different retraction points from the same 80 mm bore actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-30S the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (offering 825 N pull at 0.5 MPa) lacks the necessary thrust, but a 100 mm bore (3681 N pull) would be excessive. The 30 mm adjustment window is perfect for machinery requiring variable end-stops between setups, unlike a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. As an ISO 15552 interchangeable cylinder, ensure your setup matches the 185 mm stroke, 30 mm adjustment, PT G3/8 port, and -S magnet requirement.
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 SAIJ80AX185-30S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 Newtons of push force and 2268 Newtons of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 185 mm nominal stroke by up to 30 mm, creating a usable 155-185 mm travel window. It is a stop only, not a lock, so it cannot hold the load without continuous air pressure.
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