Airtac SAID40 Double Rod Cylinder SAID40AX115S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX115S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX115S
The AirTAC SAID40X115-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and a 115mm non-standard stroke. Because a rod exits both end covers, the effective piston area is identical on extend and retract, yielding an equal 528N of force in both directions at 0.5MPa. The -S suffix indicates an integrated magnet for position sensing.
This made-to-order unit is equipped with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount AirTAC CMSE reed or DMSE solid-state switches along either face. The twin-rod architecture is ideal for mounting a primary workpiece on one end and a cam or position flag on the opposite rear rod.
Airtac SAID40 Double Rod Cylinder SAID40AX115S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX115S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 SAID40AX115S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SAID40AX115S Is Used
Symmetric Force Transfer
Drives a transfer shuttle where the 528N push and pull forces must be perfectly matched to prevent drive belt slippage in both travel directions.
Anti-Rotation Slides
Guides a heavy vertical sliding door that cannot twist under load, utilizing the twin rods exiting both end covers for stable, jam-free tracking.
Rear-Rod Position Flag
Actuates a clamping fixture on the front rod while the rear rod protrudes externally to trigger a DMSE solid-state sensor for a secondary confirmation signal.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX115S the Right Cylinder?
Choose this double-rod SAID over a single-rod SAI when your mechanism requires equal push/pull forces, dual-side guidance, or anti-rotation stability. If your application needs less force, stepping down to the 32mm bore yields 345N both ways at 0.5MPa; if you need more, the 50mm bore provides 825N. Remember that the adjustable air cushions only decelerate the piston near stroke end and do not hold a load. If your system loses air pressure, the piston will drift, requiring an external pilot-operated check valve or a SAIL/BSAID lock cylinder for secure position holding.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses a reduced mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. As a non-standard 115mm stroke, it is manufactured to order. Ensure you specify the PT port thread and the -S magnet option when requesting a quote.
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 SAID40AX115S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the output force is equal in both directions. It provides 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa on both extend and retract strokes.
Yes, the SAID40X115-S is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 double-rod cylinders, provided your mounting setup uses the supported Basic, FA, LB, TC, FTC, TCM1, or TCM2 brackets.
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