Airtac SAID40 Double Rod Cylinder SAID40BX170
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX170 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID40 Double Rod Cylinder SAID40BX170
The AirTAC SAID40X170 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 170mm stroke. Because a rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528N of force in both extend and retract directions at 0.5 MPa.
This specific configuration utilizes a SUS304 stainless steel rod for superior corrosion resistance, PT tapered port threads, and lacks a piston magnet. The rear rod extension is ideal for mounting a cam or position flag, providing dual-side guidance and enhanced anti-rotation stability for your tooling.
Airtac SAID40 Double Rod Cylinder SAID40BX170 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX170 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 170 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 SAID40BX170
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×170 | 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 SAID40BX170 Is Used
Symmetric Force Transfer
Drives a workpiece forward and backward with identical 528N force, ensuring consistent clamping and pushing dynamics in automated assemblies.
Anti-Rotation Slides
The twin-rod design inherently resists torsional loads, keeping guided slides perfectly aligned without needing external linear bearings.
Rear-rod Sensing
Utilize the protruding rear rod to mount a physical limit flag, allowing external proximity sensors to track position independently of the primary tool.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX170 the Right Cylinder?
Select this 40mm bore double-rod cylinder when an application demands equal push and pull forces, stepping down from the 63mm bore (1402N at 0.5 MPa) or up from the 32mm bore (345N). It is preferred over a single-rod SAI when you need to drive twin loads, mount rear sensing flags, or prevent rotation without external guides. Note that the standard adjustable air cushions only decelerate the piston near stroke end; they do not hold the load. If position holding without air pressure is required, use a SAIL lock cylinder or an external pilot-operated check valve. For a drop-in replacement, match the 40mm bore, 170mm stroke, PT port thread, and appropriate mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAID40BX170 FAQ
Because it is a double-rod cylinder, the effective piston area is the same on both sides. It delivers 528N of force in both the extend and retract directions at 0.5 MPa, and 739N at 0.7 MPa.
Yes, the SAID40X170 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 double-rod profile cylinders by matching the 40mm bore, 170mm stroke, and PT port.
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