Airtac SAID50 Double Rod Cylinder SAID50BX155S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX155S 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 SAID50BX155S
The AirTAC SAID50X155-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 155mm stroke. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 825N of force in both directions at 0.5 MPa. This through-rod configuration is ideal for anti-rotation guidance and dual-side actuation.
Equipped with a magnet (-S), this variant directly supports AirTAC CMSE reed and DMSE solid-state sensors via the integrated dual-side barrel grooves. It utilizes PT tapered port threads and includes adjustable air cushions at both ends to decelerate the piston near stroke extremes.
Airtac SAID50 Double Rod Cylinder SAID50BX155S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX155S |
|---|---|
| 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 SAID50BX155S
| 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 SAID50BX155S Is Used
Symmetric Force Transfer
Drives transfer carriages with identical 825N push and pull forces, ensuring consistent acceleration and deceleration profiles in both motion directions.
Anti-Rotation Slides
The twin 20mm SUS304 rods guide the workpiece against rotation, maintaining precise angular orientation without needing external guide rails.
Through-Rod Sensing
Mounts an AirTAC DMSE solid-state sensor on the front and a mechanical cam or limit flag on the rear rod end to trigger secondary mechanisms.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX155S the Right Cylinder?
Choose this 50mm bore when an application demands symmetrical push and pull forces, requiring 825N both ways at 0.5 MPa. Stepping down to a 40mm bore drops the bidirectional force to 528N, while upgrading to a 63mm bore yields 1402N. The twin-rod design provides superior anti-rotation resistance compared to a single-rod SAI, allowing a cam or position flag to be mounted on the rear rod extension.
This 155mm unit is a non-standard stroke (made-to-order) and requires extra clearance for the rear rod protrusion. It is dimensionally interchangeable with other ISO 15552 double-rod cylinders using Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounts (omitting FB/CA/CB/CR). Note that air cushions only decelerate the piston; a plain SAID cannot hold a load without live pressure—consider SAIL or BSAID for locking needs. Since the stroke is under 300mm, side-load bending risks on the 20mm rod are moderate, but external guides are recommended for heavy lateral loads.
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 SAID50BX155S FAQ
It delivers 825N of force in both the extend and retract directions at 0.5 MPa. Because the rod exits both ends, the effective piston area is identical on both sides, making push and pull forces equal.
Yes, the SAID50X155-S is dimensionally interchangeable per ISO 15552 mounting-interface dimensions. It uses the same profile footprint and mounting accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2) as comparable ISO 15552 double-rod cylinders.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAID50 Double Rod Cylinder SAID50BX155S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.