Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 95mm 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
- Stroke95 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S
The AirTAC SAIJ80X95-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 2513N of push force at 0.5 MPa and provides a usable travel window of 45-95mm, letting you dial back the 95mm nominal stroke by up to 50mm during commissioning. This built-in stopper eliminates the need to swap cylinders or add external stops when fine-tuning end positions.
This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a magnet for position sensing. You can mount AirTAC CMSE reed or DMSE electronic sensors directly into the dual-side extruded barrel grooves. The G3/8 port and 25mm rod diameter handle robust loads, while the rear adjuster acts strictly as a travel stop, meaning live air is required to hold the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 95 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 SAIJ80BX95-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×95 | 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 SAIJ80BX95-50S Is Used
Product Changeovers
Quickly adjust the 45-95mm travel window to accommodate different product sizes on a packaging line without replacing the cylinder.
Machine Setup
Fine-tune the retract end-position during commissioning to achieve precise mechanical alignment without adding external stopper blocks.
Variable End Stops
Use the 50mm rear adjustment screw to dial in the exact stopping point for assembly presses requiring flexible end-of-stroke positioning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX95-50S the Right Cylinder?
Choose this 80mm bore when an application requires more force than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but does not need the full 3927N output of a 100mm unit. The adjustable stroke is ideal for product-size changeovers on a line, allowing you to reposition the end-stop without changing the cylinder. For exact ISO 15552 replacement matching, verify the 95mm stroke, 50mm adjustment range, PT tapered port threads, and the -S magnet requirement.
Because the nominal stroke is under 300mm, side-load risks are moderate, but the 25mm rod thread still requires proper external guiding for heavy lateral loads. Note that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. If the machine needs to hold position without continuous air pressure, select a SAIL locking cylinder or an external rod lock instead of relying on this adjuster.
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 SAIJ80BX95-50S 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, allowing you to shorten the 95mm nominal stroke by up to 50mm, creating a usable travel window of 45-95mm. It is a travel stop, not a lock, so live air is required to maintain position.
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