Airtac SAID40 Double Rod Cylinder SAID40AX15
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX15 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX15
The AirTAC SAID40X15 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 15 mm stroke. Because a rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This 15 mm stroke is a non-standard, made-to-order length for short-stroke transfer tasks.
The twin rods provide superior anti-rotation guidance and allow a rear-mounted cam or position flag to operate a secondary mechanism. The rod is constructed from SUS420J2 stainless steel for enhanced corrosion resistance, and the barrel features sensor grooves on both sides for flexible CMSE or DMSE switch mounting.
Airtac SAID40 Double Rod Cylinder SAID40AX15 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX15 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 SAID40AX15
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 SAID40AX15 Is Used
Symmetric Force Transfer
Ideal for short-stroke parts ejection where the equal 528 N push and pull forces at 0.5 MPa ensure consistent movement without the speed variations of single-rod designs.
Anti-Rotation Slides
The dual-rod architecture prevents piston rotation during the 15 mm travel, providing precise linear guidance for light-duty clamping or gauging fixtures.
Rear-Cam Actuation
The protruding rear rod can drive a secondary mechanism or mount a position flag, allowing one cylinder to control a dual-station workflow simultaneously.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX15 the Right Cylinder?
Choose this non-standard 15 mm stroke when a very short, symmetrical motion is required. If you need slightly more standard travel, the 25 mm stroke offers conventional cushioning, while a smaller 32 mm bore provides 345 N both ways at 0.5 MPa if your load is lighter. The SAID series uses a specific mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets found on single-rod variants.
A plain SAID cylinder does not hold its load when air pressure is lost or the valve is centered; the piston will drift. For positive position holding without live pressure, consider an AirTAC SAIL (pneumatic lock) or BSAID (clamp-lock) cylinder, or use an external pilot-operated check valve. This model uses PT tapered port threads.
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 SAID40AX15 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is a true ISO 15552 profile cylinder, making it a drop-in replacement for other ISO 15552 double-rod cylinders. It uses PT tapered port threads and supports mounting accessories like FA, LB, and TC.
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