Airtac SAID50 Double Rod Cylinder SAID50X425
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50X425 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 425mm 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.
- BoreØ50 mm
- Stroke425 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAID50 Double Rod Cylinder SAID50X425
The AirTAC SAID50X425 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 425mm stroke. Because a piston rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 825N of force in both extend and retract directions at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This twin-rod configuration allows you to mount the primary workpiece on the front rod while using the rear protrusion for a cam, position flag, or secondary mechanism. It utilizes a standard carbon steel rod and PT tapered port threads, ensuring robust performance and a secure pneumatic seal.
Airtac SAID50 Double Rod Cylinder SAID50X425 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50X425 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SAID50 Double Rod Cylinder SAID50X425
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | 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 SAID50 Double Rod Cylinder SAID50X425 Is Used
Symmetric Transfer
Drives a transfer carriage with equal 825N force and speed in both directions, ensuring consistent cycle times for material handling.
Anti-Rotation Slide
Uses the twin-rod geometry to guide a vertical slide, preventing piston rotation without requiring external guide shafts.
Rear-Cam Actuation
Mounts the primary tool on the front rod while the rear rod end drives a secondary cam or mechanical limit flag simultaneously.
Is the Airtac SAID50 Double Rod Cylinder SAID50X425 the Right Cylinder?
Select this 50mm bore model when an application requires symmetric force and speed both ways, offering 825N at 0.5 MPa. If you need less force, the 40mm bore neighbor provides 528N both ways; stepping up to the 63mm bore yields 1402N. A double-rod design is specifically chosen over a single-rod SAI when the load requires dual-side guidance to prevent rotation or when a rear-rod sensor flag is needed.
With a 425mm stroke, the unsupported rod length increases susceptibility to bending under side loads; utilize an external guide rail to protect the rod bearing. For a drop-in replacement, match the 50mm bore, 425mm stroke, PT port, and mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this plain cylinder drifts when air is lost; use a SAIL or BSAID variant if position holding is required.
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 SAID50 Double Rod Cylinder SAID50X425 FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It provides an equal force of 825N at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa in both the extend and retract directions.
Yes, the SAID50X425 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile double-rod cylinders by matching the 50mm bore, 425mm stroke, and mounting hardware.
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