Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100S 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 SAIJ80X120-100S
The AirTAC SAIJ80X120-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Fitted with a standard carbon steel rod and a magnet for CMSE reed and DMSE electronic sensors, it provides a broad usable travel window of 20 to 120 mm. This extreme 100 mm adjustment range allows you to dial back the nominal 120 mm stroke significantly without swapping the barrel.
The external adjusting screw acts as a mechanical stop to fine-tune the retract end-position during commissioning or product changeover. It is not a locking mechanism, so the cylinder cannot hold a load without live air pressure. The extruded aluminum barrel features sensor grooves on both sides, and the mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100S |
|---|---|
| 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 SAIJ80X120-100S
| 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 SAIJ80X120-100S Is Used
Variable End-Stop Setup
Dial in precise retract positions from 20 to 120 mm for product-size changeovers without adding external physical stops to the machine frame.
Adjustable Diverters
Control conveyor sorting arms where the stroke length must be quickly re-tuned to accommodate packages of varying widths on the same line.
Machine Commissioning
Fine-tune the end-of-travel position during initial machine build to perfect timing and mechanical alignment before locking down the setup.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100S the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust (2513N push at 0.5 MPa) alongside highly variable end-stops. If you need less force, stepping down to the 50 mm bore yields 982N, but you lose the robust 25 mm rod and M20x1.5 thread that help manage side loads. The massive 100 mm adjustment window makes the SAIJ80X120-100-S ideal for mixed-product lines requiring frequent stroke changes.
For load-holding without continuous air pressure, pair this cylinder with an external rod lock or choose the SAIL or BSAI series instead. To match ISO 15552 interchangeability, specify the 80 mm bore, 120 mm stroke, 100 mm adjustment, PT tapered port thread, and the -S magnet option.
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 SAIJ80X120-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 120 mm down to as little as 20 mm. It only sets the end-position and does not lock the load without live air pressure.
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