Airtac SAID63 Double Rod Cylinder SAID63X250S
The AirTAC Airtac SAID63 Double Rod Cylinder SAID63X250S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID63 Double Rod Cylinder SAID63X250S
The AirTAC SAID63X250-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 63mm bore and 250mm stroke. Because a carbon steel rod exits both end covers, the annulus areas match, yielding equal extend and retract forces of 1402N at 0.5 MPa. The integrated -S magnet pairs directly with AirTAC CMSE reed and DMSE solid-state switches mounted in the dual-side sensor grooves.
This through-rod design allows you to mount the primary workpiece on one end while attaching a cam, position flag, or secondary mechanism on the rear rod. It provides superior anti-rotation guidance compared to a single-rod SAI. The adjustable air cushions at both ends decelerate the piston, but note that a plain SAID will drift if air pressure is lost.
Airtac SAID63 Double Rod Cylinder SAID63X250S Technical Specifications
| Model | Airtac SAID63 Double Rod Cylinder SAID63X250S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAID63X250S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SAID63X250S Is Used
Symmetric Force Transfer
Drives a transfer shuttle where equal push and pull forces are critical for consistent cycle times and load management without pressure compensation.
Twin-Station Actuation
Mounts a primary work tool on the front rod and a secondary cam or flag on the rear rod to trigger external limit sensors simultaneously.
Anti-Rotation Slides
Utilizes the dual-rod guidance to prevent mechanical twisting during vertical clamping or pressing operations, ensuring strict parallelism.
Is the Airtac SAID63 Double Rod Cylinder SAID63X250S the Right Cylinder?
Choose this 63mm bore when you need symmetric 1402N force at 0.5 MPa in both directions; step down to a 50mm bore for 825N, or up to an 80mm bore for 2268N. The double-rod architecture is selected over a single-rod SAI when an application demands dual-side guidance, anti-rotation control, or rear-rod position sensing. To replace existing ISO 15552 cylinders, match the 250mm stroke, G3/8 PT port, and mounting accessories from the SAID set: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
At a 250mm stroke, the unsupported piston rod is subject to bending under high radial loads. For optimal bearing life and to prevent side-load damage, incorporate an external guide rail to support the load. Remember that the rear rod protrudes from the back cover, so ensure you have adequate clearance for the secondary mechanism.
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 SAID63X250S FAQ
Because the double-rod design creates equal piston annulus areas on both sides, the extend and retract forces are identical: 1402N at 0.5 MPa, 1962N at 0.7 MPa, and 2523N at 0.9 MPa.
Yes. The SAID63X250-S is dimensionally interchangeable per ISO 15552. Ensure you match the G3/8 PT port, 250mm stroke, and use the SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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