Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S
The AirTAC SAIJ80X500-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 500 mm nominal stroke that can be dialed back by up to 50 mm, providing a precise 450-500 mm usable travel window for commissioning. Delivering 3518 N of push force at 0.7 MPa, it is built with a SUS304 stainless steel rod and includes a magnet for CMSE or DMSE sensors.
This adjustable model uses an external stopper screw at the rear to fine-tune the retract end position without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for load-holding requirements, consider the SAIL or BSAI series. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80BX500-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80BX500-50S Is Used
Variable End-Stop Positioning
Dial in the exact 450-500 mm retract position during machine commissioning to accommodate varying product lengths without mechanical redesign.
Product Line Changeover
Quickly adjust the stroke by up to 50 mm when switching product sizes on a conveyor, using the rear stopper to set new end positions rapidly.
Long-Stroke Assembly Presses
Utilize the 3518 N push force at 0.7 MPa for long-travel assembly tasks, relying on the adjustable stop to fine-tune the final pressing distance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S the Right Cylinder?
Choose this 80 mm bore when the 50 mm bore's 1374 N at 0.5 MPa is insufficient, but the 100 mm bore's 5497 N at 0.7 MPa is excessive. The adjustable stroke is ideal for machine setups requiring a variable end-stop or product changeover, offering flexibility a fixed SAI cylinder cannot. With a 500 mm stroke, the 25 mm rod diameter and M20x1.5 thread provide robust support, but the long unsupported travel requires an external guide to prevent side-loading damage.
For a true ISO 15552 replacement match, verify the 80 mm bore, 500 mm stroke, 50 mm adjustment, PT tapered port, and the -S magnet for CMSE/DMSE switches. The standard variable air cushions at both ends help decelerate the load, but remember they do not function as a lock.
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 SAIJ80BX500-50S FAQ
It delivers 2513 N push and 2268 N pull force at 0.5 MPa, and 3518 N push at 0.7 MPa. The operating speed range is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 500 mm down to 450 mm. It is a stop, not a lock, so it will not hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.