Airtac SAID40 Double Rod Cylinder SAID40AX145S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX145S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX145S
The AirTAC SAID40X145-S is a double-acting, double-rod ISO 15552 profile cylinder. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding a perfectly symmetric 528 N of force each way at 0.5 MPa. This 145 mm stroke is a non-standard, made-to-order length, meaning the overall physical envelope is longer than a single-rod SAI to accommodate the rear protrusion.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance over standard carbon steel. The integrated magnet (-S) directly supports rear-rod position sensing, triggering AirTAC CMSE reed or DMSE solid-state switches housed in the dual-side sensor grooves. It uses a PT tapered G1/4 port and adjustable air cushions at both ends to decelerate the piston near stroke extremes.
Airtac SAID40 Double Rod Cylinder SAID40AX145S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX145S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 145 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 SAID40AX145S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×145 | 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 SAID40AX145S Is Used
Symmetric Transfer
Drives a transfer carriage where the equal 528 N both-way force ensures consistent momentum whether pushing or pulling the load.
Anti-Rotation Slide
The twin-rod design naturally resists torsional twist, keeping a guided workpiece perfectly aligned without external linear bearings.
Dual-Station Actuation
Mount the primary tool on the front rod end and a secondary cam or position flag on the rear protrusion to trigger DMSE sensors.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX145S the Right Cylinder?
Select this specific twin-rod actuator when an application demands equal push and pull velocity, or requires dual-side anti-rotation guidance that a single-rod SAI cannot provide. If your application needs slightly less force, stepping down to a 32 mm bore yields 345 N both ways at 0.5 MPa; stepping up to a 50 mm bore provides 825 N. The 16 mm rod and M12x1.25 thread offer robust side-load capacity, but at 145 mm of travel, always verify the rod-bearing bending stress and utilize an external guide for heavy offsets.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard double-rod profile cylinders. Match your exact bore, 145 mm stroke, PT port, and mounting accessory (choosing from Basic, FA, LB, TC, FTC, TCM1, or TCM2) for a seamless fit. Remember that the adjustable air cushion only decelerates the piston near stroke end; it does not lock or hold the load. If power or air is lost, the piston will drift. For dead-stop holding, specify an external pilot-operated check valve or explore the BSAID clamp-lock series.
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 SAID40AX145S FAQ
Because the double-rod design subtracts the rod area on both sides of the piston, the extend and retract forces are identical. It generates 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, the SAID profile barrel is dimensionally interchangeable per ISO 15552, allowing it to serve as a drop-in replacement for other standard double-rod profile cylinders. It omits FB, CA, CB, and CR mounts, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories.
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