Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX185-50 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 SAIJ80AX185-50
The AirTAC SAIJ80X185-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU is configured with an SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered port threads. The 25mm rod and M20x1.5 thread provide robust resistance against side loads, though long unsupported travel still requires external guiding. You can fine-tune the end-stop precisely, but remember the adjuster acts only as a travel stop and will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-50 |
|---|---|
| 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 SAIJ80AX185-50
| 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 SAIJ80AX185-50 Is Used
Product Changeover
Quickly reconfigure the 135-185mm travel window on packaging lines when switching between different carton sizes without changing the cylinder.
Machine Setup
Fine-tune the retract end position during initial commissioning to achieve precise mechanical alignment without adding external stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-50 the Right Cylinder?
The 50mm adjustment range is ideal for machinery that frequently handles product-size changeovers, allowing operators to reposition the end-stop rapidly instead of installing a fixed-stroke SAI cylinder. For load-holding requirements without continuous air pressure, an external rod lock or a SAIL cylinder is necessary, as the SAIJ adjuster is strictly a positioning stop.
When matching an ISO 15552 replacement, verify the 80mm bore, 185mm nominal stroke, 50mm adjustment range, PT port threads, and your required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because this unit lacks the -S magnet suffix, it cannot host CMSE or DMSE sensors without modification.
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 SAIJ80AX185-50 FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the effective stroke by up to 50mm, creating a usable travel window of 135 to 185mm. It acts as a mechanical stop to set the end position and does not lock the load without 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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