Airtac SAID40 Double Rod Cylinder SAID40AX450
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX450 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX450
The AirTAC SAID40X450 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 450mm 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 symmetric thrust makes it ideal for mechanisms requiring equal push and pull dynamics.
Equipped with a SUS420J2 stainless steel rod (material code A) and PT tapered ports, this unit offers robust corrosion resistance and reliable sealing. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. You can mount the primary workpiece on the front rod and utilize the rear rod end to drive a secondary mechanism or trigger a position flag.
Airtac SAID40 Double Rod Cylinder SAID40AX450 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX450 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAID40AX450
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SAID40AX450 Is Used
Symmetric Transfer
Moves parts between two stations with identical push and pull force, ensuring consistent cycle times regardless of travel direction.
Anti-Rotation Slide
Drives a guided carriage where the twin rods prevent torsional twist, maintaining strict parallelism for precision handling.
Dual-Side Actuation
Mounts the primary tooling on the front rod while using the protruding rear rod end to trip a limit flag or secondary mechanism.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX450 the Right Cylinder?
Choose this 40mm bore double-rod cylinder when your application demands equal force and speed in both directions, or when you need dual-side guidance to prevent the load from rotating. If your mechanism only requires standard single-direction thrust, stepping down to a single-rod SAI40X450 is more cost-effective. Conversely, if your thrust requirements exceed 528 N at 0.5 MPa, consider the neighboring 50mm bore which provides 825 N.
At 450mm of stroke, the unsupported rod length increases bending moments and side-load risks on the rod bearing; utilizing an external guide rail is highly recommended to prevent premature wear. Note that this SAID variant uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. Remember that the adjustable air cushions only decelerate the piston near stroke end; this cylinder will not hold a load if air pressure is lost.
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 SAID40AX450 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is identical in both directions. It provides 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, it is a true ISO 15552 profile cylinder and is dimensionally interchangeable with other ISO 15552 double-rod cylinders. It supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, but omits FB, CA, CB, and CR brackets.
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