Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75 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 SAIJ80BX600-75
The AirTAC SAIJ80X600-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 600 mm stroke that can be dialed back by up to 75 mm, giving you a 525-600 mm usable travel window for precise end-position tuning during commissioning. Operating at 0.5 MPa, it delivers 3518 N of push force and 2268 N of pull force.
This model is built with a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Because the rear adjuster acts purely as a mechanical stop to set the travel end, it does not hold the load without live air pressure; for true load-holding without continuous supply, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75 |
|---|---|
| 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 SAIJ80BX600-75
| 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 SAIJ80BX600-75 Is Used
Variable End-Stop Tuning
Dial in the exact 525-600 mm travel distance during machine setup without replacing the entire cylinder or adding external stop blocks.
Product Changeover
Quickly adjust the retract end position on a packaging line to accommodate varying box sizes using the 75 mm rear adjustment screw.
Long-Stroke Positioning
Move heavy jigs with 3518 N of thrust at 0.5 MPa while relying on the external guide to handle side loads over the 600 mm travel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore falls short on thrust (delivering only 982 N at 0.5 MPa) but a 100 mm bore (3927 N at 0.5 MPa) would be excessive. The 75 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end-stop without swapping the cylinder or bolting on external stops. When matching an ISO 15552 replacement, verify the 600 mm stroke, 75 mm adjustment, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that this mounting set omits FB, CA, CB, and CR options.
Given the 600 mm stroke, the 25 mm rod diameter and M20x1.5 thread provide rigidity, but long unsupported strokes still require an external guide to prevent side-load damage. The cylinder operates at speeds of 30-800 mm/s.
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 SAIJ80BX600-75 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 3518 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 4926 N.
The rear adjuster acts as a mechanical stop that shortens the 600 mm nominal stroke by up to 75 mm, creating a 525-600 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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