Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-50S 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 SAIJ80BX135-50S
The AirTAC SAIJ80X135-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -S magnet enables position sensing with CMSE reed or DMSE solid-state switches.
A 50mm adjustment screw allows you to fine-tune the effective travel window down from the 135mm nominal stroke, yielding an 85-135mm usable range. This built-in stopper lets you dial in exact end positions during machine commissioning without adding external physical stops. The rear adjuster acts only as a travel limiter and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50S |
|---|---|
| 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 SAIJ80BX135-50S
| 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 SAIJ80BX135-50S Is Used
Machine Changeover
Quickly modify the 85-135mm travel window during product size transitions without physically swapping the cylinder or bolting on new external stops.
End-Position Tuning
Fine-tune the exact retract position at commissioning using the 50mm rear screw, perfect for dialing in precise clamping or pressing depths on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-50S the Right Cylinder?
The adjustable stroke is ideal for product-size changeovers on a line, letting operators modify the 85-135mm travel window quickly. For any load-holding requirements without continuous air pressure, select the SAIL or BSAI series instead, as the SAIJ adjuster is strictly a stop, not a lock. This model uses PT tapered ports and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80BX135-50S FAQ
The rear adjuster screw trims the effective stroke by up to 50mm. This creates a usable travel window of 85-135mm from the 135mm nominal stroke, allowing precise end-position tuning without changing the cylinder.
At the maximum 1.0 MPa pressure, the push force reaches 5026N.
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.
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Most inquiries answered within 7-8 hours.
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