Airtac SAID50 Double Rod Cylinder SAID50BX90
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX90 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 90mm 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
- Stroke90 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 SAID50BX90
The AirTAC SAID50X90 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50 mm bore and 90 mm stroke. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on both sides, yielding exactly 825 N of force in both extend and retract directions at 0.5 MPa. This twin-rod architecture provides superior anti-rotation guidance compared to a single-rod SAI.
The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. You can mount the primary workpiece on one rod end and a secondary cam, position flag, or drive mechanism on the rear rod end. It uses adjustable air cushions at both ends to decelerate the piston near stroke limits.
Airtac SAID50 Double Rod Cylinder SAID50BX90 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX90 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 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 SAID50BX90
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×90 | 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 SAID50BX90 Is Used
Symmetric Force Transfer
Drives equal push and pull loads at 825 N, ensuring perfectly balanced actuation speed and thrust for precision transfer systems.
Anti-Rotation Slides
The twin SUS304 rods prevent piston rotation, providing precise linear guidance for vertical lifting and sliding jigs.
Rear-Rod Sensing
Mounts a cam or position flag on the secondary rod end to trigger DMSE electronic sensors in tight spaces.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX90 the Right Cylinder?
Choose this 50 mm bore when an application requires 825 N of symmetric force at 0.5 MPa. If your mechanism needs less force, step down to the 40 mm bore (528 N both ways); if you need higher thrust, step up to the 63 mm bore (1402 N both ways). The double-rod design is selected over a single-rod SAI when twin-side load guidance, anti-rotation resistance, or rear-rod actuation is required. Standard mounting accessories include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Porting is PT tapered G1/4. Note that a plain SAID does not hold a load when air is exhausted; use a SAIL or BSAID lock cylinder 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 SAID50BX90 FAQ
Because the double-rod design subtracts the rod area on both sides, it provides equal force in both directions: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa.
Yes, the SAID50X90 is dimensionally interchangeable per ISO 15552 profile standards, making it a drop-in replacement for other ISO 15552 double-rod cylinders using the same mounting interface.
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