Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX180-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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
- Stroke180 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 SAIJ80BX180-20
The AirTAC SAIJ80X180-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 180 mm stroke by up to 20 mm. This creates a precise 160-180 mm usable travel window, enabling fine end-position tuning at commissioning without swapping out the barrel or adding external stops.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and carries a G3/8 port. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. The rear adjuster acts purely as a mechanical travel stop to decelerate the end of stroke; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 SAIJ80BX180-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80BX180-20 Is Used
Machine Changeover
Dial in the 160-180 mm travel window during product size transitions on a packaging line without physically swapping the cylinder.
Commissioning Calibration
Fine-tune the retract end-position during initial setup to perfectly align a 2513 N pressing or clamping action.
Variable End-Stop Assembly
Adjust the stroke rearward by up to 20 mm to accommodate varying part heights on an automated assembly fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-20 the Right Cylinder?
Select this 80 mm bore when an application requires high thrust (up to 513 kgf at 1.0 MPa) alongside variable end-stop positioning. The adjustable stroke is ideal for machine changeovers where product sizes vary, replacing the need for a fixed-stroke SAI cylinder.
When matching an ISO 15552 replacement, verify the 180 mm stroke, 20 mm adjustment range, G3/8 PT ports, and your required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Because this SKU lacks the -S magnet option, it cannot host CMSE or DMSE electronic sensors.
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 SAIJ80BX180-20 FAQ
At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw allows you to shorten the effective travel from the 180 mm nominal stroke down to 160 mm, creating a 160-180 mm usable window. It functions as a mechanical stop and works with the air cushion to decelerate the piston, but it does not lock the load without continuous 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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