Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-40S 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 SAIJ80BX700-40S
The AirTAC SAIJ80X700-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 700 mm travel back by up to 40 mm, yielding a precise 660-700 mm usable window for exact end-position tuning. Delivering 2513 N of push force and 2268 N of pull force at 0.5 MPa, it handles robust actuation tasks. The integrated -S magnet operates seamlessly with AirTAC CMSE reed and DMSE solid-state sensors mounted into the dual-side extruded barrel grooves.
This variant utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance, paired with PT tapered port threading on its G3/8 air supply. The rear adjustment mechanism acts purely as a mechanical stop to dial in the retract position during commissioning or product changeovers without swapping hardware. It is not a locking device; the cylinder relies on live air pressure to maintain its load, requiring an external guide to manage side loads on this 700 mm stroke.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-40S |
|---|---|
| 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 SAIJ80BX700-40S
| 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 SAIJ80BX700-40S Is Used
Product Changeover Tuning
Quickly dial in the 660-700 mm retract end-stop during format changeovers on packaging lines without physically swapping out the entire actuator.
Long-Stroke Material Handling
Moves heavy pallets or fixtures using 2513 N of push force at 0.5 MPa, with the SUS304 rod providing durability in humid or washdown environments.
Adjustable Press End-Stop
Sets a precise mechanical bottom-out position for pressing or forming tasks, allowing operators to fine-tune the 40 mm adjustment window for different material thicknesses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-40S the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder provides (1559 N push at 0.5 MPa) but want to avoid the larger footprint and 3927 N push force of a 100 mm unit. The adjustable 660-700 mm travel window is ideal for production lines running mixed product sizes, allowing you to fine-tune the retract end-stop on the fly instead of maintaining an inventory of fixed-stroke SAI cylinders.
When specifying an ISO 15552 replacement, match the 80 mm bore, 700 mm stroke, 40 mm adjustment range, PT port thread, and -S magnet. The SAIJ mounting hardware set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR brackets. Because the stroke is 700 mm, an external guide rail is strongly recommended to prevent rod binding and premature seal wear from side loads. If your application requires true load holding without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster only sets the travel end.
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 SAIJ80BX700-40S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
A rear mechanical screw acts as a stopper, allowing you to shorten the nominal 700 mm stroke by up to 40 mm, creating a 660-700 mm usable travel window. This adjuster only sets the end position; it does not lock the load without live air pressure.
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