Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-50 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 SAIJ80BX135-50
The AirTAC SAIJ80X135-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 85 to 135 mm. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
This configuration features a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The rear adjuster acts as a mechanical stop to fine-tune the end position during commissioning without adding external stops. It supports speeds of 30-800 mm/s and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50 |
|---|---|
| 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 SAIJ80BX135-50
| 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 SAIJ80BX135-50 Is Used
Variable End-Stop Tuning
Dial in the exact retract distance from 85 to 135 mm during machine commissioning to accommodate varying material thicknesses without external stopper blocks.
Product Size Changeover
Quickly adjust the stroke on packaging lines when switching between different carton widths, using the 50 mm adjustment window to reset end positions rapidly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50 the Right Cylinder?
Choose this 80 mm bore when your application requires more thrust than the 63 mm bore (1559 N at 0.5 MPa) but less than the 100 mm option (3927 N). The 50 mm adjustment range is ideal for product-size changeovers on a packaging line, allowing operators to dial in the exact 85-135 mm stroke on the fly instead of swapping cylinders. The M20x1.5 rod thread and 25 mm rod diameter handle high side loads, though an external guide is recommended for maximum stability.
Because the SAIJ80X135-50 is a standard double-acting cylinder, the rear adjuster only sets the travel end and does not hold the load without live air. For load-holding requirements without pneumatic pressure, consider an external rod lock or AirTAC SAIL and BSAI series cylinders. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ80BX135-50 FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 85 to 135 mm for fine-tuning end positions without swapping the cylinder.
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 SAIJ80BX135-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.