Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40 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 SAIJ80AX700-40
The AirTAC SAIJ80X700-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 660 to 700 mm, allowing you to dial back the stroke by up to 40 mm during commissioning without adding external stops. It delivers a robust 4523N of push force at 0.9 MPa, making it well-suited for heavy positioning tasks.
This variant uses a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a travel stop to fine-tune the end position; it does not hold the load without live air pressure, so a SAIL or BSAI lock is needed for dead-stop holding.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40 |
|---|---|
| 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 SAIJ80AX700-40
| 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 SAIJ80AX700-40 Is Used
Variable End-Stop Setup
Dial in the exact 660 to 700 mm retract position during machine commissioning to accommodate different product lengths without external stopper blocks.
Product Changeover
Quickly adjust the stroke length on a packaging line when switching between box sizes, using the 40 mm trim range to avoid cylinder swaps.
Heavy Assembly Press
Leverage the 4523N push force at 0.9 MPa to seat large components, relying on the rear stopper to fine-tune the final clamping position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (offering 1767N push at 0.9 MPa) is too weak, but a 100 mm bore (7068N) is oversized. The adjustable 660-700 mm travel window is ideal for product changeovers on a line, letting operators set variable end-stops on the fly instead of swapping out a fixed-stroke SAI cylinder.
Because the 700 mm stroke is long, the 25 mm rod diameter and M20x1.5 thread still require an external guide to prevent side-loading damage. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For drop-in replacement, match the 80 mm bore, 700 mm stroke, PT ports, and the ISO 15552 mounting interface.
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 SAIJ80AX700-40 FAQ
The rear adjuster screw lets you shorten the effective travel by up to 40 mm, creating a usable stroke window of 660 to 700 mm. It acts as a mechanical stop to set the end position precisely during setup.
It generates 2513N of push force and 2268N of pull force at 0.5 MPa. At 0.9 MPa, the push force increases to 4523N.
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