Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 135mm 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
- Stroke135 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 SAIJ80BX135-75S
The AirTAC SAIJ80X135-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to dial back the nominal 135 mm travel by up to 75 mm. This creates a highly flexible 60 to 135 mm usable positioning window, perfect for dialing in exact end-stops during commissioning without swapping hardware. It delivers robust thrust, pushing 4523 N at 0.9 MPa.
Built with a SUS304 stainless steel rod, this variant excels in environments demanding corrosion resistance. The integrated magnet supports position sensing via AirTAC CMSE reed or DMSE electronic switches. Remember that the rear adjuster acts purely as a mechanical stop for deceleration and positioning; it does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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 SAIJ80BX135-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×135 | 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 SAIJ80BX135-75S Is Used
Machine Changeover
Rapidly adapt end-of-stroke positions for different product lengths on a single line, utilizing the 60-135 mm adjustable window to minimize downtime.
Precision End-Stops
Fine-tune the retract position during commissioning using the rear mechanical stopper, ensuring exact placement without adding external shims.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75S the Right Cylinder?
Choose this 80 mm bore when your application requires substantial force, pushing 2513 N at 0.5 MPa or 4523 N at 0.9 MPa. If your setup needs less push, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa. The 75 mm adjustment range is exceptionally wide, making this model ideal for product lines running multiple varying sizes. For load-holding without continuous air pressure, pair this cylinder with an external pilot-operated check valve or explore the SAIL or BSAI locking series.
To replace an ISO 15552 cylinder, match the 80 mm bore, 135 mm stroke, PT tapered port thread, and your required mounting from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Because the nominal stroke is 135 mm, standard side-load rules apply, but always ensure external guiding for any unsupported loads.
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 SAIJ80BX135-75S FAQ
The pull force is 2268 N at 0.5 MPa.
The rear adjuster acts as a mechanical stop that shortens the effective travel from the nominal 135 mm down to a minimum of 60 mm. It sets the end position but does not hold the load without live air pressure.
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Covers non-human-caused product damage.
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