Airtac SAID40 Double Rod Cylinder SAID40AX50S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX50S
The AirTAC SAID40X50-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 50mm stroke. Because the piston rod exits both end covers, the effective annulus area is identical in both directions, yielding equal push and pull forces of 528N at 0.5MPa. This through-rod geometry provides superior anti-rotation guidance for moving loads compared to a single-rod SAI.
Equipped from the factory with a magnet (-S) for position sensing, it supports AirTAC CMSE reed and DMSE electronic solid-state switches mounted into the dual-side sensor grooves on the extruded aluminum barrel. The rod is constructed from SUS420J2 stainless steel (material code A) for enhanced corrosion resistance, and fluid connections use PT tapered threads sized at G1/4.
Airtac SAID40 Double Rod Cylinder SAID40AX50S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAID40AX50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 SAID40AX50S Is Used
Symmetric Force Transfer
Drives a transfer carriage where the 528N extend and retract forces must be perfectly matched, preventing jerkiness during bidirectional material shuttling.
Rear-Rod Cam Actuation
Mounts the primary workpiece on the front rod while utilizing the rear protruding rod to trigger an external mechanical limit valve or secondary mechanism.
Anti-Rotation Guidance
Lifts and lowers a precision pick-and-place head, using the double-rod geometry to resist torsional twisting and maintain strict parallelism without external guides.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX50S the Right Cylinder?
Select this 40mm bore model when an application demands 528N of symmetric thrust and retraction force at 0.5MPa, stepping up from the 32mm bore (345N) for higher load capacity without the bulk of the 50mm bore (825N). The twin-rod design is specifically chosen over a single-rod cylinder when you need to mount a secondary cam, position flag, or second tool on the rear rod extension while maintaining precise anti-rotation stability. Operating speed ranges from 30-800 mm/s.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders for drop-in replacement. Mounting options include the SAID-specific set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load. If position holding without live air pressure is required, use a SAIL lock cylinder, BSAID clamp-lock, or external pilot-operated check valve.
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 SAID40AX50S FAQ
The SAID40X50-S provides an equal force of 528N in both the extend and retract directions at 0.5 MPa. At 0.7 MPa it outputs 739N, and at 0.9 MPa it reaches 950N both ways, due to the double-rod design subtracting the rod area from both piston sides.
Yes, the SAID40X50-S is an extruded aluminum profile cylinder built to ISO 15552 mounting interface dimensions, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. Just ensure your porting (G1/4 PT) and mounting accessories match the Basic, FA, LB, TC, FTC, TCM1, or TCM2 styles.
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