Airtac SAID50 Double Rod Cylinder SAID50BX220S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX220S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 220mm 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
- Stroke220 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 SAID50BX220S
The AirTAC SAID50X220-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and a 220mm non-standard stroke. Because a rod extends from both end covers, the annulus area is identical on extend and retract, yielding equal push and pull forces of 825N at 0.5 MPa. The twin rods provide superior anti-rotation guidance and allow mounting a secondary tool or position flag on the rear rod.
This specific variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and a built-in magnet (-S) for position sensing. It operates at speeds from 30-800 mm/s and integrates AirTAC CMSE reed and DMSE electronic sensors via dual-side barrel grooves. The rear rod protrusion requires additional clearance compared to a single-rod SAI cylinder.
Airtac SAID50 Double Rod Cylinder SAID50BX220S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX220S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 220 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 SAID50BX220S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×220 | 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 SAID50BX220S Is Used
Symmetric Force Transfer
Drives mechanisms where the 825N push and pull forces must be perfectly matched, ensuring consistent cycle times in both directions without pressure compensation.
Twin-Station Actuation
Uses both rod ends simultaneously to operate two separate workstations in opposite directions, maximizing machine layout efficiency.
Rear-Rod Position Sensing
Mounts a cam or DMSE electronic sensor target on the rear rod end, keeping the primary work tool on the front rod completely unobstructed.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX220S the Right Cylinder?
Choose this 50mm bore when an application demands symmetric force and twin-rod stability, stepping up from the 40mm bore (528N both ways) or down from the 63mm bore (1402N both ways). The double-rod design is preferred over a single-rod SAI when you need to drive a cam on the rear end or require precise anti-rotation guidance. Note that a plain SAID does not hold a load without live air pressure; the adjustable air cushions only decelerate the piston near stroke end, so use a SAIL or BSAID lock cylinder if position holding is required.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. For this configuration, specify the 220mm non-standard stroke, PT tapered port thread, G1/4 port size, and SUS304 rod material. Because the stroke is 220mm or longer, ensure the 16mm rod and thread can handle the load; long unsupported strokes may require an external guide to prevent rod-bearing bending.
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 SAID50BX220S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the push and pull forces are equal. It generates 825N both ways at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa.
Yes. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders using standard mounting accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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