Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 SAIJ80BX300-50S
The AirTAC SAIJ80X300-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and an integrated magnet for position sensing. It uses PT tapered ports and is fully dimensionally interchangeable per ISO 15552. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic solid-state switches along the stroke.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80BX300-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80BX300-50S Is Used
Product Changeovers
Quickly modify the 250-300mm travel endpoint via the rear screw when adapting a packaging line to different carton sizes, avoiding mechanical rebuilds.
Machine Setup
Fine-tune the final retract position during initial commissioning to perfectly align tooling, ensuring precise end-stops without external shims.
Variable End Stops
Ideal for automated clamping stations that require on-the-fly stroke adjustments to accommodate varying workpiece thicknesses within the 50mm window.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50S the Right Cylinder?
The 50mm rear adjustment screw allows you to dial in the exact retract end-position during machine setup or product changeovers without swapping hardware or adding external stops. Remember that the adjuster functions strictly as a travel stop, not a lock; if you need to hold a load vertically without live air pressure, select an AirTAC SAIL or BSAI series cylinder.
Because this 300mm stroke is relatively long, the 25mm rod should be guided externally to prevent excessive side-loading and premature seal wear. To match this ISO 15552 cylinder exactly, specify the 80mm bore, 300mm stroke, 50mm adjustment, PT port thread, SUS304 rod, and the -S magnet option.
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 SAIJ80BX300-50S FAQ
At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 50mm. This means the 300mm nominal stroke can be precisely dialed back to any travel length within a 250-300mm window.
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Standard models are processed and dispatched in 3-5 business days.
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