
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80X135 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 135mm 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 SAID80X135 is a double-acting, double-rod ISO 15552 profile cylinder engineered for symmetrical actuation. Because a 25mm carbon steel rod exits both end covers, the effective piston area is identical on extend and retract, yielding an equal 2268N of force in each direction at 0.5MPa. This twin-rod architecture provides inherent anti-rotation guidance for the load.
A primary advantage of this through-rod design is the ability to drive a primary workpiece on the front end while mounting a position flag, cam, or secondary mechanism on the rear. The extruded aluminum barrel features dual sensor grooves, and while this unit lacks a magnet, specifying the -S option enables tracking via AirTAC CMSE reed or DMSE electronic solid-state switches.
| Model | Airtac SAID80 Double Rod Cylinder SAID80X135 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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. |
| ×135 | 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.
Ideal for pressing or transferring loads where the 2268N retraction force must exactly match the extension force to prevent binding in external guide rails.
The twin 25mm carbon steel rods provide superior resistance to torsional deflection, keeping guided slides perfectly aligned without external linear bearings.
Drive a primary tool on the front rod while using the protruding rear rod end to mechanically trigger a sequence valve or physical limit cam.
Select this 80mm bore when an application demands matched push and pull forces that a single-rod SAI cannot provide. If your mechanism requires less force, stepping down to the 63mm bore offers 1402N both ways at 0.5MPa; if you need substantially more thrust, the 100mm bore provides 3681N. The SAID80X135 utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on single-rod variants.
For drop-in replacements, verify the exact 135mm stroke, G3/8 PT port thread, and mounting accessory dimensions against your ISO 15552 footprint. Remember that the adjustable air cushions only decelerate the piston near stroke end; they do not hold the load. If pneumatic pressure is lost, the cylinder will drift, requiring an external rod lock or a BSAID clamp-lock cylinder for secure position holding.
Quick checklist
Because the double-rod design occupies piston area on both sides, the extend and retract forces are equal. It outputs 2268N in both directions at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa.
Yes, the SAID80X135 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile cylinders, provided your mounting bracket (Basic, FA, LB, TC, etc.) and G3/8 port match.
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