Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S
The AirTAC SAIJ80X800-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 700 to 800 mm. It features an 80 mm bore generating 2513 N of push force and 2268 N of pull force at 0.5 MPa. The rod is constructed from SUS420J2 stainless steel for enhanced durability against moisture, and the integrated magnet allows for direct mounting of CMSE reed or DMSE solid-state sensors.
This model utilizes a PT tapered port thread (G3/8) and relies on a variable air cushion at both ends to decelerate the load. The rear mechanical stopper allows you to fine-tune the end position during commissioning without adding external stops, though it functions only as a travel limiter and does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80AX800-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SAIJ80AX800-100S Is Used
Machine Changeover
Dial back the stroke by up to 100 mm during product size changes to set new retract positions without physically replacing the cylinder.
Variable End Stops
Provides a 700 to 800 mm travel window for positioning pusher arms on a conveyor line where the physical target distance varies.
Commissioning Tuning
Fine-tune the final retract position during machine setup to align with existing tooling, avoiding the need for custom spacer rings.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100S the Right Cylinder?
Choose this 80 mm bore when an application requires higher thrust than a 63 mm cylinder (1559 N push at 0.5 MPa) but does not need the full 3927 N push force of a 100 mm bore. The 100 mm adjustment range is ideal for machinery that processes varying product sizes, allowing operators to dial back the stroke from 800 mm down to 700 mm during changeovers rather than swapping the cylinder. For any load-holding requirements without continuous air pressure, this cylinder is insufficient; the rear adjuster is a stop, not a brake, so you should look at an external rod lock or AirTAC SAIL and BSAI series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 800 mm nominal stroke, 100 mm adjustment range, G3/8 PT port, and the -S magnet requirement. Because the stroke is 800 mm, the 25 mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is strongly recommended to prevent side-loading damage over this long unsupported travel. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations, omitting FB, CA, CB, and CR options.
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 SAIJ80AX800-100S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 100 mm. This creates a usable travel window of 700 to 800 mm, allowing precise end-position tuning at commissioning without swapping the cylinder.
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
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