Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S
The AirTAC SAIJ80X950-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing an exact 875-950mm usable travel window for your application. Delivering 2513N of push force at 0.5 MPa, it handles heavy loads with precision. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and carries the -S magnet option, making it fully compatible with AirTAC CMSE reed and DMSE electronic solid-state sensors. It uses a G3/8 port and operates efficiently at speeds between 30-800 mm/s. The rear stopper allows you to fine-tune the end position during commissioning without swapping out the entire cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80BX950-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×950 | 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 SAIJ80BX950-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 875-950mm window during machine commissioning to accommodate different product lengths without mechanical rework.
Product Size Changeover
Quickly adjust the stroke stop on packaging lines when switching between box sizes, using the 75mm trim range to handle multiple formats on the same conveyor.
Long-Stroke Positioning
Leverage the 2513N push force at 0.5 MPa and the SUS304 rod to move heavy assemblies over a 950mm travel distance while decelerating smoothly via the 36mm air cushion.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-75S the Right Cylinder?
Selecting this 80mm bore cylinder makes sense when your machine setup requires variable end-stops or product changeovers, as the 75mm adjustment window prevents the need for external stops. If you need less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa; stepping up to a 100mm bore provides 3927N. Because the 950mm stroke is substantial, an external guide is strongly recommended to manage side loads and prevent rod binding over long unsupported distances.
When matching ISO 15552 replacements, verify the 950mm stroke, 75mm adjustment range, G3/8 PT ports, and the -S magnet. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ80BX950-75S 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 acts as a mechanical stop that allows you to shorten the effective stroke by up to 75mm, creating a usable travel window of 875-950mm. It sets the end position but does not lock the load without live air pressure.
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