Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-100S 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 SAIJ80BX135-100S
The AirTAC SAIJ80X135-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The B code rod is SUS304 stainless steel, and the -S option includes a magnet for AirTAC CMSE reed or DMSE electronic sensors.
This adjustable-stroke design uses an external rear screw as a mechanical stop to fine-tune the end position during commissioning or product changeover. It retains the standard ISO 15552 mounting interface and dual-side sensor grooves, but utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) that omits FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-100S |
|---|---|
| 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 SAIJ80BX135-100S
| 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 SAIJ80BX135-100S Is Used
Variable Product Changeover
Quickly reconfigure the 35 to 135 mm retract distance on packaging lines handling different carton sizes without changing out the entire actuator.
Commissioning End-Stop Tuning
Fine-tune the exact end position during machine setup to achieve precise alignment, using the rear screw rather than adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-100S the Right Cylinder?
The generous 100 mm adjustment range is perfect for machines processing varying product sizes, allowing you to reconfigure the retract distance on the fly instead of installing a fixed-stroke SAI cylinder. Ports are PT threaded, and the 25 mm rod with M20x1.5 thread handles substantial side loads, though any stroke over 300 mm would require an external guide.
When specifying a replacement, match the 80 mm bore, 135 mm nominal stroke, 100 mm adjuster, PT port thread, and the -S magnet. Remember that the rear adjuster functions only as a travel stop and does not hold the load without live air; for true pneumatic locking without pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80BX135-100S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke by up to 100 mm. This creates a usable travel window between 35 and 135 mm, but it does not lock the position without continuous air pressure.
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