Airtac SAID40 Double Rod Cylinder SAID40AX500
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX500 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX500
The AirTAC SAID40X500 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 500mm stroke. Because the piston rod extends from both end covers, the effective annulus area is identical on both sides, yielding exactly 528N of force in both extend and retract directions at 0.5 MPa. This symmetric output makes it ideal for applications requiring consistent push and pull dynamics.
This configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches on either end to track the through-rod position.
Airtac SAID40 Double Rod Cylinder SAID40AX500 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX500 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 SAID40AX500
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 SAID40AX500 Is Used
Symmetric Force Transfer
Drives loads requiring identical push and pull kinetics, utilizing the twin-rod design to deliver a stable 528N of output in both directions without differential speed.
Anti-Rotation Slides
Keeps workpieces guided and prevents rotational drift over the 500mm travel, leveraging the dual-ended rod structure for superior torsional stability.
Rear-Rod Cam Actuation
Uses the protruding rear rod end to independently trigger a secondary mechanism or external limit flag while the front rod handles the primary work load.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX500 the Right Cylinder?
Select this 40mm bore model when a project requires equal bidirectional force and anti-rotation guidance that a single-rod SAI cannot provide. If your application needs less force, stepping down to the 32mm bore yields 345N both ways, while stepping up to the 50mm bore provides 825N. Because this cylinder lacks a magnet, position sensing requires external flags or a separate mechanical switch setup.
At 500mm of stroke, the 16mm diameter rod and M12x1.25 thread experience significant leverage under side loads; an external guide rail is strongly recommended to prevent premature rod-bearing wear. Note that a plain SAID does not hold its position if air pressure drops—use a SAIL or BSAID variant if mid-stroke locking is required. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other standard double-rod cylinders and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts (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 SAID40AX500 FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. It generates 528N in both directions at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa.
Yes, the SAID40X500 is an extruded aluminum profile cylinder with standard ISO 15552 mounting dimensions, making it a drop-in replacement for comparable double-rod cylinders using Basic, FA, LB, or TC mounting accessories.
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