Airtac SAID40 Double Rod Cylinder SAID40X220S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X220S 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 SAID40X220S
The AirTAC SAID40X220-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a magnetic piston. Because a carbon steel rod exits both end covers, the annulus area is identical on extend and retract, yielding exactly 528N of force each way at 0.5MPa. This symmetric output is ideal for applications requiring consistent push and pull dynamics.
The twin-rod architecture allows you to mount the primary workpiece on the front rod and a position flag or cam on the rear rod for external tracking. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet interfaces directly with AirTAC CMSE reed and DMSE electronic solid-state switches.
Airtac SAID40 Double Rod Cylinder SAID40X220S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X220S |
|---|---|
| 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 SAID40X220S
| 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 SAID40X220S Is Used
Symmetric Transfer
Provides identical 528N push and pull force for balanced part transfer between two stations without speed discrepancies.
Anti-Rotation Slides
Twin carbon steel rods exiting both ends guide the load against rotation better than a single-rod cylinder.
Rear-Flag Sensing
Mounts a workpiece on the front rod and a position flag on the rear rod to trigger external DMSE sensors.
Is the Airtac SAID40 Double Rod Cylinder SAID40X220S the Right Cylinder?
Select this 40mm bore when you need symmetric 528N force both directions and dual-side guidance to prevent rotation. If your application requires less force, the 32mm bore offers 345N; if you need more, the 50mm bore provides 825N. Unlike a single-rod SAI, this double-rod design allows rear-rod sensing and twin-station actuation. It uses PT tapered ports (G1/4) and supports the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, TCM2.
With a 220mm stroke, the unsupported rod length increases; use an external guide to prevent rod-bearing bending under side loads. Note that the adjustable air cushions only decelerate the piston near stroke end and do not hold the load. If position holding without live pressure is required, use a SAIL lock cylinder, BSAID clamp-lock, or external pilot-operated check valve. Dimensionally interchangeable per ISO 15552.
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 SAID40X220S FAQ
Because the rod occupies both sides of the piston, the effective area is equal in both directions. It provides 528N of force at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa for both extend and retract strokes.
Yes, it is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other ISO 15552 double-rod profile cylinders. It uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR.
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