Airtac SAID50 Double Rod Cylinder SAID50AX850
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50AX850 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 850mm 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
- Stroke850 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 SAID50AX850
The AirTAC SAID50X850 is a double-acting, double-rod ISO 15552 profile cylinder engineered for symmetric actuation. Because the piston rod extends from both end covers, the effective annulus area is identical on extend and retract. This provides an equal 825N of force in both directions at 0.5 MPa, ensuring perfectly balanced motion control.
This specific configuration features SUS420J2 stainless steel rods (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extended 850mm stroke requires rear-rod clearance in your layout, while the extruded aluminum barrel includes dual sensor grooves for flexible mounting of CMSE or DMSE switches.
Airtac SAID50 Double Rod Cylinder SAID50AX850 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50AX850 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 850 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 SAID50AX850
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×850 | 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 SAID50AX850 Is Used
Symmetric Transfer
Drives a transfer carriage with identical velocity and power in both directions, ensuring precise timing for automated material handling.
Anti-Rotation Slides
The dual-rod geometry prevents mechanical twisting on long 850mm strokes, keeping the attached tooling plate perfectly aligned without external guides.
Rear-Sensor Actuation
Mounts a cam or position flag on the protruding rear rod end to trigger external limit switches while the front rod performs the primary work.
Is the Airtac SAID50 Double Rod Cylinder SAID50AX850 the Right Cylinder?
Select this 50mm bore when an application demands equal push and pull forces, which a single-rod SAI cannot provide. If your mechanism requires less force, the 40mm bore offers 528N both ways at 0.5 MPa; stepping up to the 63mm bore yields 1402N. The twin-rod design inherently resists torsion and provides superior anti-rotation guidance compared to standard cylinders.
Because this model features an 850mm stroke, the extended unsupported rod length increases susceptibility to side-load bending; utilize an external guide rail to prevent premature rod-bearing wear. Note that a plain SAID does not hold position if air pressure is lost—consider SAIL or BSAID variants if mid-stroke locking is required. As a true ISO 15552 profile cylinder, it drops in seamlessly with standard mounting accessories like FA, LB, or TC brackets.
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 SAID50AX850 FAQ
The double-rod design provides equal force in both directions. It delivers 825N at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa for both extend and retract strokes.
Yes. The SAID50X850 is dimensionally interchangeable per ISO 15552 standards. It uses the same mounting footprint and PT G1/4 ports, allowing it to replace other double-rod profile cylinders directly.
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