Airtac SAID40 Double Rod Cylinder SAID40X220
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X220 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 SAID40X220
The AirTAC SAID40X220 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 220mm stroke. Because a carbon steel rod exits 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. A PT tapered G1/4 port ensures reliable pneumatic connection.
This through-rod design allows you to mount the primary workpiece on one end and attach a position flag, cam, or secondary mechanism on the rear rod. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches on either end without extra brackets.
Airtac SAID40 Double Rod Cylinder SAID40X220 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X220 |
|---|---|
| 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 SAID40X220
| 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 SAID40X220 Is Used
Symmetric Force Transfer
Drives push and pull mechanisms with identical 528 N force and speed in both directions, ensuring perfectly synchronized motion for transfer arms.
Anti-Rotation Slides
Uses the dual carbon steel rods to guide heavy sliding loads, preventing the piston from twisting under offset weight during 220mm strokes.
Through-Rod Sensing
Mounts the primary tool on the front rod and a DMSE electronic sensor flag on the rear protruding rod to track exact mid-stroke positions.
Is the Airtac SAID40 Double Rod Cylinder SAID40X220 the Right Cylinder?
Select this 40mm bore cylinder when your application requires equal push and pull forces, anti-rotation guidance, or dual-side actuation. It provides 528 N both ways at 0.5 MPa; step down to a 32mm bore (345 N) for lighter loads, or up to a 50mm bore (825 N) if you need higher force. Unlike a single-rod SAI, the twin rods prevent the load from twisting during transit.
This SAID40X220 is dimensionally interchangeable with other ISO 15552 double-rod cylinders, requiring no footprint changes for drop-in replacement. It uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR. Because the stroke is 220mm, ensure adequate rear-rod clearance and consider an external guide to prevent rod-bearing bending under heavy side loads. Note that the adjustable air cushions only decelerate the piston near stroke end; this cylinder will drift if air pressure is lost, so use a SAIL or BSAID lock if position 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 SAID40X220 FAQ
The SAID40X220 provides 528 N of force at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. Because it is a double-rod cylinder, this exact force output is identical in both the extend and retract directions.
Yes, it is dimensionally interchangeable with ISO 15552 profile cylinders. However, the SAID series uses a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It does not support the FB, CA, CB, or CR mounts found on single-rod variants.
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