Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-75 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 SAIJ80BX135-75
The AirTAC SAIJ80X135-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 60 to 135 mm, letting you dial back the nominal 135 mm stroke by up to 75 mm during machine commissioning.
This specific configuration uses a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches, though this unit ships without a magnet. The rear adjustment screw functions purely as a travel stop to fine-tune end positions without swapping the cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75 |
|---|---|
| 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 SAIJ80BX135-75
| 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 SAIJ80BX135-75 Is Used
Machine Changeovers
Quickly modify the effective stroke from 60 to 135 mm to accommodate varying product sizes on a conveyor without changing the cylinder.
End-Position Tuning
Fine-tune the retract end-position during initial setup to achieve precise mechanical stops without adding external spacers.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75 the Right Cylinder?
The 75 mm adjustment range is particularly valuable for product-size changeovers on a packaging line, eliminating the need to physically swap out a fixed-stroke SAI cylinder. If your process requires holding a load statically without live air pressure, note that the SAIJ adjuster is only a stop; you should instead select an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder.
For an exact ISO 15552 dimensional replacement, match the 80 mm bore, 135 mm nominal stroke, 75 mm adjustment range, PT G3/8 ports, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. Because the 135 mm stroke is relatively short, side-loading is less critical here, but always ensure the load is guided 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 SAIJ80BX135-75 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 135 mm down to as little as 60 mm. It allows precise end-position tuning at commissioning without replacing the cylinder.
The maximum thrust is 513 kgf at 1.0 MPa.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.