Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S
The AirTAC SAIJ80X700-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3518N of push force at 0.7 MPa. It features a SUS420J2 stainless steel rod and a PT tapered port. By integrating an external adjusting screw, this model provides a usable travel window of 625 to 700 mm, allowing you to dial back the nominal 700 mm stroke by up to 75 mm during commissioning.
Because it is a profile cylinder with an extruded aluminum barrel, it includes sensor grooves on both sides for straightforward switch placement. The integrated -S magnet supports position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors. The rear stopper acts purely as a travel end for deceleration alongside the variable air cushions; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80AX700-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80AX700-75S Is Used
Product Changeover
Quickly reconfigure the retract distance by up to 75 mm on packaging lines handling different carton sizes without changing the cylinder.
Machine Setup
Fine-tune the 625-700 mm travel window during initial commissioning to achieve exact end-positioning without machining external stop blocks.
Assembly Pressing
Delivers 3518N of push force at 0.7 MPa for seating components, with the rear screw allowing precise depth control on the retract stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust, such as the 2513N push force at 0.5 MPa, but a 63 mm bore (providing 1559N at 0.5 MPa) would be insufficient. The adjustable 625-700 mm window is ideal for product-size changeovers on a line, letting you fine-tune the retract position without swapping the cylinder or adding external stops. For a fixed end position, the standard SAI cylinder is suitable, but the SAIJ variant excels when mechanical setup requires flexibility.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 700 mm stroke, 75 mm adjustment, PT port thread, and -S magnet requirement. Note that SAIJ mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Given the 700 mm stroke, the 25 mm rod and M20x1.5 thread provide rigidity, but an external guide is recommended to prevent excessive side-loading on the unsupported rod. If true load-holding without live air is needed, look to the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ80AX700-75S FAQ
At 0.5 MPa it provides 2513N push and 2268N pull force. At 0.7 MPa the push force is 3518N, and at 0.9 MPa it reaches 4523N. The maximum push force is 513 kgf at 1.0 MPa.
The rear adjusting screw lets you shorten the effective 700 mm stroke by up to 75 mm, creating a usable travel window of 625 to 700 mm. This allows precise end-position tuning at commissioning without swapping the cylinder.
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