Airtac SAID40 Double Rod Cylinder SAID40AX220
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX220 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX220
The AirTAC SAID40X220 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 220 mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding a perfectly symmetrical 528 N of force in either direction at 0.5 MPa. It operates at speeds of 30-800 mm/s and uses PT G1/4 ports.
This specific configuration uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Note that the through-rod design requires extra rear clearance, as the rod protrudes from the back cover during actuation.
Airtac SAID40 Double Rod Cylinder SAID40AX220 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX220 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 220 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 SAID40AX220
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×220 | 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 SAID40AX220 Is Used
Symmetric Force Transfer
Drives a workpiece back and forth with exactly 528 N of force in both directions, ensuring consistent cycle times and uniform pressure for delicate handling tasks.
Anti-Rotation Slides
The twin-rod architecture prevents the piston from twisting during transit, providing precise linear guidance for sliding gates or indexing fixtures without external guides.
Dual-Side Actuation
Mount the primary tool on the front rod and a secondary mechanism or mechanical flag on the rear rod end to drive two synchronized stations from one cylinder.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX220 the Right Cylinder?
Choose this double-rod SAID40X220 over a single-rod SAI when your mechanism requires equal push and pull forces, inherent anti-rotation guidance, or a rear rod end to mount a secondary cam and position flag. If you need less force, the 32 mm bore offers 345 N both ways at 0.5 MPa; if your application demands more thrust, the 50 mm bore provides 825 N. Being a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders.
Because this 220 mm stroke is significant, long unsupported strokes increase the risk of rod-bearing bending under side loads; always use an external guide to support the load. Also, remember that a plain SAID does not hold its position when air is lost—the adjustable air cushions only decelerate the piston near stroke end, so add an external rod lock or pilot-operated check valve if static holding is required.
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 SAID40AX220 FAQ
Because the double-rod design occupies area on both sides of the piston, the effective annulus area is equal in both directions. It generates 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 standard ISO 15552 double-rod cylinders. It supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (it omits FB, CA, CB, and CR).
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