Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 600mm 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
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S
The AirTAC SAIJ80X600-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 4523N push force at 0.9 MPa. It features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE or DMSE sensors. With a nominal 600mm stroke, the external stopper lets you dial back the travel by up to 50mm, creating a precise 550-600mm usable window for fine-tuning end positions during commissioning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when product sizes change. The extruded aluminum barrel incorporates sensor grooves on both sides, and the G3/8 port ensures adequate airflow for its 30-800mm/s speed range. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock, meaning it will not hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAIJ80BX600-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×600 | 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 SAIJ80BX600-50S Is Used
Product Changeover
Quickly adapt the 550-600mm travel window on packaging lines when switching to different carton sizes without changing the cylinder.
End-Stop Tuning
Fine-tune the exact retract position during machine commissioning to perfect the alignment of heavy 80mm bore actuation components.
Variable Forming Stops
Adjust the rear stopper on the fly to accommodate different material depths in automated bending or forming stations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-50S the Right Cylinder?
Choose this 80mm bore when you need significantly more thrust than a 63mm cylinder (which provides 2805N push at 0.9 MPa) but want to avoid the larger footprint of a 100mm unit. The 50mm adjustment range is ideal for machinery requiring variable end-stops during product changeovers, replacing the need for fixed-stroke SAI cylinders when exact positioning is not predetermined. For load-holding without continuous air pressure, this cylinder is insufficient; you should explore the SAIL or BSAI locking series instead.
Because this model features a 600mm stroke, the M20x1.5 rod and SUS304 material provide excellent structural integrity, but an external guide is strongly recommended to prevent excessive side-loading on the piston. When specifying an ISO 15552 replacement, match the 80mm bore, 600mm nominal stroke, 50mm adjustment, PT tapered port threads, and the -S magnet requirement. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ80BX600-50S FAQ
At an operating pressure of 0.9 MPa, this 80mm bore cylinder provides a push force of 4523N and a pull force of 4060N. The maximum push force is 513 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the 600mm nominal stroke by up to 50mm, providing an effective 550-600mm travel window. It only sets the travel end and does not lock the load without live air.
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