Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75 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 SAIJ80BX700-75
The AirTAC SAIJ80X700-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 700 mm nominal stroke to a 625 mm minimum. This yields a 75 mm adjustment window for dialing in exact retract end positions during commissioning without adding external stops. Delivering 2513 N of push force at 0.5 MPa, it bridges the gap between mid-size and heavy industrial actuation.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific unit lacks a magnet, the shared design accommodates standard switches when needed. The rear adjuster acts purely as a travel stop to set the end position, meaning it cannot hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75 |
|---|---|
| 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 SAIJ80BX700-75
| 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 SAIJ80BX700-75 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within a 625-700 mm window during machine commissioning to accommodate varying material thicknesses without swapping cylinders.
Product Size Changeover
Quickly adjust the rear stopper on automated packaging lines when switching between different package lengths, reducing downtime between production runs.
Long-Stroke Assembly Press
Leverage the 2513 N of thrust at 0.5 MPa to drive long-travel pressing operations, using the rear screw to set a precise, repeatable bottoming position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75 the Right Cylinder?
Select this 80 mm bore actuator when an application requires precise retract positioning within a 625 to 700 mm travel window, stepping up from a 63 mm bore that provides 1559 N of push force at 0.5 MPa. The adjustable rear stopper is ideal for machine setups requiring product changeovers, serving as a physical end-position boundary rather than a locking mechanism. If your sequence requires true load-holding without live air, consider the SAIL or BSAI series instead.
Because the 700 mm stroke creates a long unsupported rod extension, an external guide is strongly recommended to prevent side-load wear on the rod seals and barrel. When specifying an ISO 15552 replacement match, confirm the 80 mm bore, 700 mm nominal stroke, 75 mm adjustment range, PT port thread, and your required mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80BX700-75 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the 700 mm nominal stroke by up to 75 mm, creating a usable travel window of 625 to 700 mm. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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