Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10
The AirTAC SAIJ80X70-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. It features a SUS304 stainless steel rod and PT tapered ports. By turning the rear screw, you achieve a usable travel window of 60-70mm, allowing precise end-position tuning without swapping hardware.
This adjustable-stroke design is tailored for machine setups requiring exact physical stops during commissioning or product changeover. The extruded aluminum barrel includes sensor grooves on both sides, and while this unit lacks a magnet, adding an -S variant enables CMSE reed or DMSE electronic solid-state switches for position feedback.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAIJ80BX70-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SAIJ80BX70-10 Is Used
End-Position Calibration
Dial in the exact 60-70mm travel distance during machine commissioning to perfect part seating without machining new hard stops.
Product Changeover
Quickly adjust the rear stopper by up to 10mm to accommodate slight variations in product sizes on a fast-paced packaging line.
Precision Clamping
Leverage the 2513N push force at 0.5 MPa to securely clamp workpieces while fine-tuning the clamping depth to prevent deformation.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10 the Right Cylinder?
Choose this 80mm bore when an application demands substantial thrust, such as 2513N push or 2268N pull at 0.5 MPa, but requires less force than a 100mm bore (3927N push). The 10mm adjustment window is perfect for dialing in a 60-70mm stroke exactly at commissioning, avoiding the need to bolt on external stops or buy a custom fixed-stroke SAI cylinder.
For any stroke at or above 300mm, an external guide is recommended to manage side load, though this 70mm stroke is well within safe limits for the 25mm rod. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR.
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 SAIJ80BX70-10 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the nominal 70mm stroke back by up to 10mm. This creates a usable travel window of 60-70mm for fine-tuning at commissioning, but it does not lock the position without continuous air pressure.
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