Airtac SAID40 Double Rod Cylinder SAID40BX210S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX210S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 210mm 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.
- BoreØ40 mm
- Stroke210 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 SAID40 Double Rod Cylinder SAID40BX210S
The AirTAC SAID40X210-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 210mm stroke. Because the piston rod extends from both end covers, the annular area is identical on both sides, yielding exactly 528 N of force at 0.5 MPa in both extend and retract directions. Equipped with a magnet (-S), it integrates seamlessly with AirTAC CMSE reed and DMSE solid-state electronic sensors mounted into the dual-side barrel grooves.
This variant uses SUS304 stainless steel rods (material code B), providing superior corrosion resistance for demanding environments. The G1/4 porting is specified as PT tapered threads. The through-rod design allows you to mount the primary workpiece on the front rod while utilizing the rear rod extension for anti-rotation guidance, a secondary mechanism, or a rear position flag.
Airtac SAID40 Double Rod Cylinder SAID40BX210S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX210S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 210 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40BX210S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×210 | 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 SAID40 Double Rod Cylinder SAID40BX210S Is Used
Symmetric Force Transfer
Ideal for pushing and pulling loads that require identical 528 N force and speed in both directions, preventing cycle-time asymmetry in precision transfer mechanisms.
Anti-Rotation Slides
The twin SUS304 rods keep the load guided and prevent rotation without external linear bearings, perfect for compact lifting and sliding assemblies.
Dual-Side Tool Actuation
Mount a primary workpiece on the front rod and a secondary cam or position flag on the rear protruding rod to trigger rear-mounted CMSE or DMSE sensors.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX210S the Right Cylinder?
Select this 40mm bore double-rod cylinder when an application demands equal push and pull forces (528 N at 0.5 MPa) alongside inherent anti-rotation guidance. If your mechanism requires higher thrust, stepping up to the 50mm bore yields 825 N both ways, while dropping to a 32mm bore provides 345 N. The twin-rod architecture is chosen over a single-rod SAI when you need to drive twin stations simultaneously or mount a rear cam for dual-side sensing.
This 210mm stroke falls within the standard range, but because the rear rod protrudes from the back cover, you must account for additional rear clearance in your machine layout. Remember that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If your system loses air pressure, the cylinder will drift, requiring an external pilot-operated check valve or a related locking type like BSAID for true position holding. As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a direct drop-in replacement for other standard double-rod cylinders, utilizing the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set (omitting FB, CA, CB, and CR).
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 SAID40 Double Rod Cylinder SAID40BX210S FAQ
Because the rod occupies both sides of the piston, the effective area is identical in both directions. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, the SAID40X210-S is an extruded aluminum profile cylinder built to ISO 15552 mounting interface dimensions, making it a drop-in replacement for other ISO 15552 double-rod cylinders. It uses PT tapered G1/4 ports and a standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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