Airtac SAID40 Double Rod Cylinder SAID40X30S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X30S
The AirTAC SAID40X30-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 30mm stroke. Because a 16mm carbon steel rod exits both end covers, the annulus area is identical on extend and retract, yielding 528N of force each way at 0.5 MPa. The integrated -S magnet enables position tracking via CMSE reed and DMSE electronic sensors mounted in the dual-side extrusion grooves.
This through-rod design is ideal for applications needing dual-side guidance or anti-rotation capability. You can mount the primary workpiece on one end and a position flag or cam on the rear rod. It shares the standard ISO 15552 mounting interface, ensuring drop-in compatibility with other profile cylinders.
Airtac SAID40 Double Rod Cylinder SAID40X30S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAID40X30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAID40X30S Is Used
Symmetric Force Transfer
Provides exactly 528N of thrust and pull at 0.5 MPa, ensuring perfectly balanced speed and force for pushing and pulling loads within compact 30mm strokes.
Rear-Rod Position Flag
The protruding rear rod acts as a mounting point for a cam or limit flag, triggering CMSE or DMSE sensors externally without interfering with the primary end tooling.
Anti-Rotation Guidance
The twin 16mm carbon steel rods prevent the piston from twisting under offset loads, offering superior stability for lifting or guiding mechanisms.
Is the Airtac SAID40 Double Rod Cylinder SAID40X30S the Right Cylinder?
Select this 40mm bore when an application requires symmetric force and speed in both directions, offering 528N at 0.5 MPa. If your mechanism needs less force, step down to the 32mm bore (345N); if you need more push/pull, step up to the 50mm bore (825N). Choose the SAID twin-rod over a single-rod SAI when the load must be guided against rotation or when a secondary mechanism needs rear-rod actuation.
This model uses a PT G1/4 port and includes the -S magnet for CMSE / DMSE switches. Mounting accessories fit the SAID subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets. 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 cylinder if the load must hold position without live pressure.
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 SAID40X30S FAQ
Because the rod occupies both sides of the piston, the effective area is equal in both directions. It generates 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa on both extend and retract strokes.
Yes, the SAID40X30-S is dimensionally interchangeable per ISO 15552. It uses a standard PT G1/4 port and supports the SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), allowing it to drop into existing ISO 15552 profile cylinder setups.
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