Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S
The AirTAC SAIJ80X150-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It delivers 2513 N of push thrust at 0.5 MPa and provides a usable travel window of 100-150 mm, allowing you to dial back the 150 mm nominal stroke by up to 50 mm during machine commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant carries a magnet for precise position detection with CMSE reed or DMSE electronic solid-state switches.
Equipped with a 25 mm carbon steel rod and a PT G3/8 port, this unit handles speeds from 30-800 mm/s with variable air cushions at both ends. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without adding external stops, while the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SAIJ80X150-50S Is Used
Product Changeover Dials
Shift the retract position by up to 50 mm instantly on packaging lines running different carton widths, using the rear stopper to fine-tune the 100-150 mm travel window.
Press Fit Tuning
Dial in the exact end-of-stroke force for bearing insertion or light pressing tasks, leveraging the 2513 N thrust at 0.5 MPa without machining external hard stops.
Machine Setup Commissioning
Adjust the stroke on-site during initial build to compensate for mechanical tolerances, using the integrated rear screw rather than fabricating custom spacer plates.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50S the Right Cylinder?
Choose this 80 mm bore when your application requires substantial force—stepping down to a 63 mm bore drops the 0.5 MPa push thrust to 1559 N, whereas the 80 mm provides 2513 N. The 50 mm adjustment range is ideal for product-size changeovers, letting you shift the end-of-stroke position dynamically rather than swapping a fixed-stroke SAI cylinder. Remember that the rear adjuster is a travel stop, not a locking mechanism; this cylinder will not hold a load without live air pressure, so for fail-safe load holding you should consider an external rod lock or the SAIL/BSAI series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 150 mm nominal stroke, 50 mm adjustment, PT G3/8 ports, and the -S magnet requirement. Because the 150 mm stroke is relatively short, side-load stress is minimal, but always ensure the 25 mm rod thread is aligned to prevent premature seal wear if guiding is imperfect.
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 SAIJ80X150-50S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 100-150 mm. It sets the end position but does not lock the load without continuous air pressure.
At 0.5 MPa operating pressure, it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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