Airtac SAID63 Double Rod Cylinder SAID63X125S
The AirTAC Airtac SAID63 Double Rod Cylinder SAID63X125S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 125mm 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.
- BoreØ63 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
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About the Airtac SAID63 Double Rod Cylinder SAID63X125S
The AirTAC SAID63X125-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 63mm bore and 125mm stroke. Because a carbon steel rod exits both end covers, the annulus area is identical on extension and retraction, yielding an equal force of 1402 N in both directions at 0.5 MPa. The -S suffix indicates an integrated magnet for position sensing.
This through-rod design allows mounting a primary workpiece on one end and a cam, secondary tool, or position flag on the rear rod end. It provides superior anti-rotation guidance for the load compared to a single-rod SAI. The extruded aluminum barrel includes sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic switches.
Airtac SAID63 Double Rod Cylinder SAID63X125S Technical Specifications
| Model | Airtac SAID63 Double Rod Cylinder SAID63X125S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 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.
Theoretical Output Force (Ø63mm)
| 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.
Model Code: Airtac SAID63 Double Rod Cylinder SAID63X125S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×125 | 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 SAID63 Double Rod Cylinder SAID63X125S Is Used
Symmetric Force Transfer
Drives push-and-pull mechanisms where equal 1402 N force and matching speeds in both directions are critical for balanced motion.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation, ideal for guiding precision slides and external workpieces without lateral play.
Through-Rod Sensing
The rear rod end drives a secondary cam or position flag, triggering CMSE or DMSE sensors mounted along the barrel grooves.
Is the Airtac SAID63 Double Rod Cylinder SAID63X125S the Right Cylinder?
Choose this double-rod cylinder when your mechanism requires symmetrical force and speed both ways, or needs dual-side guidance to prevent rotation. If you need less force, the 50mm bore offers 825 N both ways at 0.5 MPa; if you need more, the 80mm bore provides 2268 N. The 125mm stroke is well within the 1500mm standard limit, keeping the overall length compact while still requiring clearance for the protruding rear rod.
This model uses a PT G3/8 port and supports the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting the FB, CA, CB, and CR styles found on single-rod variants). It is dimensionally interchangeable per ISO 15552. Note that the adjustable air cushions at both ends decelerate the piston but do not hold the load; if position holding is required without air pressure, consider a SAIL or BSAID variant.
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 SAID63 Double Rod Cylinder SAID63X125S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the push and pull forces are equal. It generates 1402 N both ways at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa.
Yes, the SAID63X125-S is dimensionally interchangeable per ISO 15552 mounting interface dimensions. It serves as a direct replacement for other ISO 15552 double-rod cylinders, using the standard PT G3/8 port.
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