
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-20 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.
The AirTAC SAIJ80X600-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 580-600mm usable travel window, allowing you to dial back the 600mm nominal stroke by up to 20mm during commissioning. Delivering 4523N of push force at 0.9 MPa, it handles heavy positioning tasks. The standard extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This variant uses a SUS304 stainless steel piston rod (code B) for superior corrosion resistance. It features PT tapered port threads (G3/8) and variable air cushions at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop, meaning it will not hold a load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-20 |
|---|---|
| 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.
| 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.
| 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.
Fine-tune the 580-600mm retract position on packaging lines when swapping product sizes, avoiding the need to physically remount the cylinder.
Dial in the exact bottoming position during machine commissioning, using the rear screw to absorb mechanical tolerances without adding external stoppers.
Move heavy jigs or pallets with 4523N of force, relying on the built-in air cushions and the external stop to manage the end-of-stroke impact.
Choose this 80mm bore when 50mm (1374N push at 0.5 MPa) is too weak but 100mm (5497N push at 0.7 MPa) is oversized. The 20mm adjustment range is ideal for product changeovers, letting you fine-tune the retract position without swapping cylinders or adding external stops. For true load-holding without live pressure, consider the SAIL or BSAI series instead.
With a 600mm stroke, the M20x1.5 rod is highly susceptible to side-loading. An external guide rail is strongly recommended to prevent premature seal wear and binding. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.9 MPa, this 80mm bore cylinder provides 4523N of push force and 4059N of pull force. At 0.5 MPa, it delivers 2513N push and 2268N pull.
The rear adjuster is a mechanical stop that shortens the effective travel from 600mm down to 580mm. It allows precise end-position tuning during setup but does not lock the load without live air pressure.
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