Airtac SAID50 Double Rod Cylinder SAID50AX155S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50AX155S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 155mm 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
- Stroke155 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 SAID50AX155S
The AirTAC SAID50X155-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50 mm bore and a 155 mm non-standard stroke. Because a rod exits both end covers, the effective annulus area is identical on extend and retract, yielding an equal 825 N of force in both directions at 0.5 MPa. This through-rod design is highly valued for applications requiring dual-side guidance, anti-rotation stability, or the ability to mount a secondary cam and position flag on the rear rod end.
Built for demanding environments, this specific variant integrates SUS420J2 stainless steel rods for enhanced corrosion resistance and utilizes PT tapered port threads. The integrated -S magnet enables precise piston tracking via AirTAC CMSE reed and DMSE solid-state sensors seated in the dual-side extruded aluminum barrel grooves. Adjustable air cushions at both ends manage end-of-stroke deceleration.
Airtac SAID50 Double Rod Cylinder SAID50AX155S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50AX155S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 155 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 SAID50AX155S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SAID50AX155S Is Used
Symmetric Force Transfer
Ideal for mechanisms requiring identical push and pull dynamics, leveraging the equal 825 N annulus area to seamlessly drive loads in both directions without force disparity.
Anti-Rotation Slides
The twin through-rods provide superior torsional resistance and guidance, preventing the load from rotating during transit and ensuring precise linear movement in machining fixtures.
Dual-Station Actuation
Mount the primary workpiece on the front rod and a secondary cam, tool, or position flag on the rear rod end to drive or monitor two separate stations simultaneously.
Is the Airtac SAID50 Double Rod Cylinder SAID50AX155S the Right Cylinder?
Selecting the SAID50X155-S is ideal when a mechanism demands equal push and pull forces alongside high torsional rigidity. If your application requires less force, stepping down to the 40 mm bore yields 528 N both ways at 0.5 MPa; conversely, upgrading to the 63 mm bore provides 1402 N. Because this is a 155 mm stroke (a non-standard made-to-order length), ensure your design accommodates the specific overall dimensions and the extra rear-rod protrusion clearance required for a through-rod design.
When specifying this model, confirm the PT tapered port interface, the SUS420J2 rod material, and the -S magnet for your CMSE / DMSE sensor setup. It uses the standard SAID mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Note that this cylinder relies on adjustable air cushions to decelerate the piston; it does not hold a load or maintain position if air pressure is lost. For pneumatic locking, consider the SAIL or BSAID series.
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 SAID50AX155S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa.
Yes, the SAID50X155-S is an extruded aluminum profile cylinder that is dimensionally interchangeable with other ISO 15552 cylinders, utilizing a standard mounting interface and PT tapered ports.
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