
The AirTAC SAID63 Double Rod Cylinder SAID63X300S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAID63X300-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a through-rod design where a single piston drives a carbon steel rod out of both end covers. Because the rod occupies both sides of the piston, the annulus area is identical in each direction, yielding equal push and pull forces of 1402 N at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent dynamics in both travel directions.
Equipped with a magnet (-S), this variant supports AirTAC CMSE reed and DMSE electronic sensors housed within the dual-side extruded barrel grooves. The twin-rod architecture allows engineers to mount the primary workpiece on the front rod end while utilizing the rear protrusion for a cam, position flag, or secondary actuation. Fluid must be filtered to 40 um, and the standard TPU seals operate reliably across a -20 to +70 C temperature range.
| Model | Airtac SAID63 Double Rod Cylinder SAID63X300S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | — |
| Max (@1.0 MPa) | 286 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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.
Drives equal 1402 N clamping and release forces in both directions, ensuring balanced pressure for precision machining fixtures.
The twin-rod design resists torsional twist on the 300 mm stroke, guiding heavy vertical lifts without binding or external guides.
Mounts the primary tool on the front rod while the rear protrusion triggers a DMSE electronic sensor or secondary mechanism simultaneously.
Select this 63 mm bore when an application demands 1402 N of thrust and retraction force at 0.5 MPa, stepping up from the 50 mm bore (825 N) or down from the 80 mm bore (2268 N). The double-rod layout is chosen over a single-rod SAI when the load requires anti-rotation guidance, dual-side tooling, or rear-position sensing. For a 300 mm stroke, the extended unsupported rod length increases susceptibility to side-load bending; always use an external linear guide to prevent premature rod-bearing wear.
As a dimensionally interchangeable ISO 15552 profile cylinder, it drops in seamlessly with other standard 63 mm double-rod units. It uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. Note that the adjustable air cushions at both ends decelerate the piston near stroke end but do not lock the load; if position holding without live air pressure is required, specify a SAIL or BSAID variant. Ports are PT tapered, sized G3/8.
Quick checklist
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It provides an equal force of 1402 N in both extend and retract directions at 0.5 MPa, and 1962 N at 0.7 MPa.
No, the adjustable air cushions only decelerate the piston at stroke ends and do not act as a brake. The piston will drift if air is lost. For position holding, consider an external rod lock or an AirTAC SAIL/BSAID variant.
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