Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 65mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S
The AirTAC SAIJ80X65-20-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the 65 mm nominal stroke by up to 20 mm for a usable 45-65 mm travel window. It delivers 2513 N of push force at 0.5 MPa and uses a G3/8 port. The integrated magnet supports position sensing with AirTAC CMSE reed or DMSE electronic switches.
This variant features a SUS420J2 stainless steel rod (option A) for corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on some standard ISO cylinders.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 65 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×65 | 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 SAIJ80AX65-20S Is Used
Machine Changeover
Dial in the exact 45 to 65 mm end-stop during product size changes on a packaging line without swapping cylinders.
Variable End-Stop Setup
Fine-tune the retract position at commissioning to clear tooling or adjust mechanical timing precisely.
Clamping Positioning
Set the exact clamping reach for varying workpiece thicknesses, relying on the 2513 N thrust at 0.5 MPa.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S the Right Cylinder?
Choose this 80 mm bore if you need 2513 N push force at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N, or down from a 100 mm bore yielding 3927 N. The adjustable rear stopper is ideal for fine-tuning end positions at commissioning or during product changeover without adding external stops or swapping a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts only as a travel stop, not a lock, so it will not hold the load without live air. For load-holding without pressure, consider an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock. The 65 mm stroke is short enough that side-loading is minimal, but the 25 mm rod and M20x1.5 thread provide robust guidance for the payload.
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 SAIJ80AX65-20S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the 65 mm nominal stroke by up to 20 mm, providing a usable travel window of 45 to 65 mm. It decelerates the travel end but does not lock the load without live air pressure.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.