Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX80-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75
The AirTAC SAIJ80X80-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 80 mm travel back by up to 75 mm. This creates a highly flexible 5 to 80 mm usable travel window, allowing precise end-position tuning at commissioning without swapping out the cylinder or adding external stops.
This variant is equipped with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads (G3/8). The rear adjuster acts strictly as a mechanical stop to set the travel end and relies on the integrated air cushions for deceleration; it does not lock or hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related types like the SAIL or BSAI cylinders are required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 80 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SAIJ80BX80-75 Is Used
Machine Changeover
Dial in the exact end-stop position within the 5-80 mm window during product size changes on a packaging line, avoiding mechanical rebuilds.
Press Fit Tuning
Fine-tune the engagement depth of a 4523 N pressing operation at commissioning without needing to physically swap out the entire cylinder body.
Variable Diverting
Adjust the retract distance on a conveyor diverter arm to accommodate different carton widths quickly and accurately.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX80-75 the Right Cylinder?
If your force requirements are lower, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. The adjustable stroke is ideal for machine setups and product changeovers where the exact end-stop needs slight calibration without installing a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 80 mm stroke, 75 mm adjustment range, G3/8 PT ports, and the SUS304 rod material. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Since this is an 80 mm stroke, side-load risks are minimal, but always ensure the M20x1.5 rod thread is properly aligned to prevent binding.
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 SAIJ80BX80-75 FAQ
The pull force is 2268 N at 0.5 MPa and 4523 N at 0.9 MPa, with a maximum rated force of 513 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the nominal 80 mm stroke by up to 75 mm, providing a usable travel window of 5 to 80 mm. The adjuster functions as a mechanical stop for end-position tuning and deceleration, but it does not lock or hold the load without live air pressure.
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