
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 50mm stroke, G1/4 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 SAID50X50 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 50mm stroke. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on both sides, yielding an equal extend and retract force of 825N at 0.5 MPa. You can mount the workpiece on one end and a cam or position flag on the rear rod for dual-side guidance.
This through-rod design provides superior anti-rotation control compared to a single-rod SAI. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It uses adjustable air cushions at both ends to decelerate the piston, but note that it will not hold a load if air pressure is lost.
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×50 | 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 mechanisms requiring identical push and pull dynamics, leveraging the equal annulus area on both sides for consistent 825N force.
The dual SUS304 rods guide the load against twisting, providing stable linear movement without external guides for short strokes.
Mount the primary tool on the front rod and a position flag on the rear to trigger DMSE electronic sensors for dual-station control.
Choose this 50mm bore when an application requires symmetric force and speed in both directions, offering 825N each way at 0.5 MPa. If your project demands less force, stepping down to the 40mm bore yields 528N, while stepping up to the 63mm bore provides 1402N. The twin-rod structure is selected over a single-rod cylinder when precise anti-rotation or rear-rod actuation is needed. It is dimensionally interchangeable per ISO 15552, using a PT G1/4 port and mounting accessories from the SAID set: Basic, FA, LB, TC, FTC, TCM1, TCM2 (omitting FB, CA, CB, CR).
Quick checklist
Because the double-rod design subtracts the rod area from both sides, the push and pull forces are equal. It delivers 825N at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa in both directions.
Yes. The SAID50X50 is dimensionally interchangeable with other ISO 15552 profile cylinders. It shares the standard mounting interface and G1/4 port, making it a drop-in replacement.
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