Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX185-75S 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 SAIJ80AX185-75S
The AirTAC SAIJ80X185-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 185 mm travel back by up to 75 mm, yielding a usable window of 110 to 185 mm. The G3/8 PT ports and M20x1.5 rod thread are set by the 80 mm bore, while the integrated -S magnet pairs directly with CMSE reed and DMSE electronic sensors in the dual-side barrel grooves.
This unit uses a SUS420J2 stainless steel rod (option A) for superior corrosion resistance compared to standard carbon steel. The rear adjuster acts purely as a mechanical stop for position tuning during commissioning; it does not lock the load, so you will need live air or a separate SAIL/BSAI lock for holding. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-75S |
|---|---|
| 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 SAIJ80AX185-75S
| 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 SAIJ80AX185-75S Is Used
Product Changeovers
Dial the travel back from 185 mm to 110 mm instantly during packaging format changes without disassembling the machine.
End-Position Tuning
Fine-tune the retract stop during commissioning to achieve exact positioning without adding external stopper blocks.
Sensor Integration
Utilize the built-in magnet with DMSE solid-state sensors for reliable end-of-stroke detection in automated setups.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-75S the Right Cylinder?
The 75 mm adjustment range is selected over a fixed SAI stroke when you need variable end-stops to handle product size changes on a single line without swapping hardware. For ISO 15552 replacement, match the 80 mm bore, 185 mm stroke, 75 mm adjuster, PT G3/8 port, and -S magnet. Because the stroke is under 300 mm, side-load risks are moderate, but an external guide is still 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 SAIJ80AX185-75S FAQ
At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the 185 mm nominal stroke by up to 75 mm, creating a usable travel window of 110 to 185 mm. It functions as a mechanical stop and does not hold the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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