Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S
The AirTAC SAIJ80X120-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a usable travel window of 80-120 mm from its 120 mm nominal stroke. It generates 2513 N of push force at 0.5 MPa, making it robust for mid-weight industrial tasks. The integrated -S magnet enables position sensing with AirTAC CMSE reed and DMSE electronic switches.
This adjustable-stroke design allows you to dial in the exact end-of-stroke position during machine commissioning or product changeover without swapping the cylinder or adding external stops. The 25 mm carbon steel piston rod and M20x1.5 thread provide high rigidity, while the extruded aluminum barrel features sensor grooves on both sides. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAIJ80X120-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAIJ80X120-40S Is Used
Machine Setup & Changeover
Fine-tune the 80-120 mm retract position precisely during commissioning or product line changeovers without installing external physical stops.
Variable Product Sizing
Accommodate varying package dimensions on a conveyor line by dialing back the stroke up to 40 mm to push different box sizes accurately.
Mid-Weight Assembly
Leverage the 2513 N push force at 0.5 MPa for robust pressing or lifting operations that require exact end-position control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-40S the Right Cylinder?
Select this 80 mm bore model when your application requires 2513 N of push force at 0.5 MPa and needs precise mechanical end-position tuning. If you need less force, stepping down to a 63 mm bore yields 1559 N; if you need more, a 100 mm bore provides 3927 N. The 40 mm adjustment window is ideal for accommodating variable product sizes on a single line. Unlike fixed-stroke SAI cylinders, this SAIJ variant lets you shorten the retract stroke by up to 40 mm directly via the rear screw.
For ISO 15552 replacement matching, ensure the target cylinder shares the 80 mm bore, 120 mm stroke, PT tapered port thread, and the -S magnet option. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider an external rod lock or the SAIL/BSAI series. The standard carbon steel rod is suitable for general environments.
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 SAIJ80X120-40S FAQ
The rear adjuster screw lets you shorten the effective stroke from 120 mm down to as little as 80 mm, providing a 40 mm tuning window. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5 MPa operating pressure, the SAIJ80X120-40-S provides 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at the maximum operating pressure of 0.9 MPa.
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 SAIJ80X120-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.