Airtac SAID40 Double Rod Cylinder SAID40BX175S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX175S 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 SAID40BX175S
The AirTAC SAID40X175-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 175mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528 N of force in each direction at 0.5 MPa. This symmetric output is ideal for applications requiring consistent push and pull dynamics.
Equipped with a magnet for position sensing, this variant works seamlessly with AirTAC CMSE reed and DMSE electronic switches. The rods are crafted from SUS304 stainless steel for superior corrosion resistance, and fluid ports feature PT tapered threads. You can mount a workpiece on the front rod and a cam or position flag on the rear protrusion to drive dual-side guidance.
Airtac SAID40 Double Rod Cylinder SAID40BX175S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX175S |
|---|---|
| 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 SAID40BX175S
| 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 SAID40BX175S Is Used
Symmetric Force Transfer
Provides equal 528 N force on both extend and retract strokes, ensuring perfectly balanced push-pull transfer without speed fluctuations.
Anti-Rotation Slides
The twin SUS304 rods guide the load against rotation far better than a single rod, maintaining precise linear tracking for sliding fixtures.
Dual-Side Tool Actuation
Mount the primary workpiece on the front rod and a secondary cam or position flag on the rear rod to drive two mechanisms simultaneously.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX175S the Right Cylinder?
Choose this 40mm bore when you need exactly 528 N of bidirectional force at 0.5 MPa; stepping down to a 32mm bore reduces that symmetric output to 345 N, while a 50mm bore raises it to 825 N. The double-rod architecture is selected over a single-rod SAI when the mechanism demands anti-rotation guidance or twin-station actuation from a single piston. Ensure you order with the -S magnet option if using CMSE or DMSE sensors for end-of-stroke detection.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If your application must maintain position without live air pressure, consider an external rod lock or the SAIL locking cylinder instead.
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 SAID40BX175S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the push and pull forces are equal. It delivers 528 N in both directions at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552, acting as a drop-in replacement for other ISO 15552 double-rod profile cylinders. The -S magnet option allows direct mounting of AirTAC CMSE reed and DMSE electronic sensors.
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