Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-50 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 SAIJ80BX300-50
The AirTAC SAIJ80X300-50 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 300 mm stroke that can be fine-tuned backward by up to 50 mm, yielding a usable travel window of 250-300 mm.
This unit features an SUS304 stainless steel rod for superior corrosion resistance in harsh environments. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed and DMSE electronic solid-state switches if a magnet is added later. It uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and relies on variable air cushions at both ends to decelerate the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50 |
|---|---|
| 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 SAIJ80BX300-50
| 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 SAIJ80BX300-50 Is Used
Machine Setup & Changeover
Dial in the exact 250-300 mm travel end-position during commissioning or product size transitions without bolting on external stops.
Variable End Stops
Adjust the retract distance on the fly to accommodate different package lengths moving down a packaging line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-50 the Right Cylinder?
The adjustable stroke is ideal for machine setup and product changeover, allowing operators to dial in the exact end-position without swapping cylinders or adding external stops. Because the 300 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the rod.
For load-holding applications, note that the rear adjuster and air cushions act only as travel stops and deceleration devices, not as locks. The SAIJ cannot hold a load without live air pressure; for fail-safe holding, consider the SAIL pneumatic lock or BSAI clamp-lock series. To match this ISO 15552 footprint, specify an 80 mm bore, 300 mm stroke, 50 mm adjustment, PT ports, and the desired mounting accessory.
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 SAIJ80BX300-50 FAQ
A rear external screw acts as a stopper, allowing you to shorten the effective stroke from 300 mm down to 250 mm. It only sets the travel end and does not lock the load without live air.
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.
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