Airtac SAID40 Double Rod Cylinder SAID40X65S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X65S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 65mm 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
- Stroke65 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X65S
The AirTAC SAID40X65-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 65mm stroke. Because a carbon steel rod exits both end covers, the effective piston area is identical in both directions, yielding an equal extend and retract force of 528N at 0.5 MPa. This through-rod design is highly effective for applications requiring dual-side guidance and anti-rotation control. The included -S magnet enables position tracking using AirTAC CMSE reed or DMSE solid-state sensors housed in the dual-side barrel grooves.
Equipped with a PT tapered G1/4 port and adjustable air cushions at both ends, it ensures smooth deceleration. The twin-rod architecture allows engineers to mount a primary workpiece on the front rod and a secondary cam, position flag, or drive mechanism on the rear rod. It shares the exact ISO 15552 mounting footprint, making it a drop-in replacement for other standard double-rod profile cylinders.
Airtac SAID40 Double Rod Cylinder SAID40X65S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X65S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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 SAID40X65S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SAID40X65S Is Used
Symmetric Force Transfer
Drives a transfer shuttle with equal push and pull thrust, utilizing the 528N both-way capacity to move parts smoothly without speed variations between stroke ends.
Rear-Cam Actuation
Mounts the primary tool on the front rod and a mechanical cam on the rear rod to trigger secondary mechanisms or mechanical valves simultaneously.
Anti-Rotation Guidance
Leverages the twin through-rods to keep a vertical lifting slide perfectly guided and prevented from twisting under offset loads.
Is the Airtac SAID40 Double Rod Cylinder SAID40X65S the Right Cylinder?
Select this 40mm bore model when a project demands symmetric thrust and speeds of 30-800 mm/s, stepping up from a 32mm bore (345N both ways) or down from a 50mm bore (825N both ways). The double-rod layout is chosen over a single-rod SAI when the mechanism requires superior anti-rotation stability or a rear-mounted position flag. Since the stroke is 65mm, side-load risks are minimal, but external guidance is recommended for heavy radial loads. To integrate, specify the 65mm stroke, G1/4 PT port, the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), and the -S magnet for CMSE/DMSE switches.
Note that the adjustable air cushion only decelerates the piston near stroke end; it does not hold a load. If the application must maintain position without live air pressure, use an external pilot-operated check valve or switch to a locking variant like SAIL or BSAID.
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 SAID40X65S FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides of the piston. It delivers an equal force of 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa in both the extend and retract directions.
Yes, it is dimensionally interchangeable per ISO 15552. It uses a reduced mounting set consisting of Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR accessories, which are strictly for single-rod SAI cylinders.
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