Airtac SAID40 Double Rod Cylinder SAID40AX175
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX175 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX175
The AirTAC SAID40X175 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 175 mm stroke. Because a piston rod exits both end covers, the annulus area is identical on extend and retract, yielding exactly 528 N of force each way at 0.5 MPa (739 N at 0.7 MPa). This equal-force symmetry is ideal for twin-station actuation and maintaining balanced motion.
This specific configuration uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. It features PT tapered port threads and lacks a magnet (-S not specified), meaning it will not trigger AirTAC CMSE or DMSE position switches without modification. The extruded aluminum barrel includes sensor grooves on both sides for installations adding external flags.
Airtac SAID40 Double Rod Cylinder SAID40AX175 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX175 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 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 SAID40AX175
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 SAID40AX175 Is Used
Symmetric Transfer Unit
Utilizes the equal extend and retract forces to move parts smoothly in both directions without needing pressure compensation valves.
Anti-Rotation Lifting Slide
The twin-rod configuration prevents mechanical twist during vertical lift, keeping the carriage perfectly guided without external rails.
Dual-Tool Actuation
Drives a primary workpiece on the front rod face while simultaneously operating a secondary mechanism or limit flag from the rear.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX175 the Right Cylinder?
Choose this 40 mm bore when an application demands equal push and pull forces alongside dual-side guidance. If your mechanism requires higher thrust, stepping up to the 63 mm bore yields 1402 N both ways at 0.5 MPa; if less force is acceptable, the 32 mm bore provides 345 N. The double-rod design inherently resists torsional rotation better than a single-rod SAI cylinder, allowing a cam or secondary tool to mount on the rear rod end.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 double-rod units. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If position holding without live air pressure is required, use an external rod lock or pilot-operated check valve. For this 175 mm stroke, external guiding is recommended to prevent rod-bearing bending under side loads.
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 SAID40AX175 FAQ
Because the rod occupies both sides of the piston, the effective area is the same in both directions. It generates 528 N of force both extending and retracting at 0.5 MPa, and 739 N both ways at 0.7 MPa.
Yes. The SAID40X175 is a true ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 double-rod cylinders. It uses PT ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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