Airtac SAID40 Double Rod Cylinder SAID40BX170S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX170S 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
About the Airtac SAID40 Double Rod Cylinder SAID40BX170S
The AirTAC SAID40X170-S is a double-acting, double-rod ISO 15552 profile cylinder. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on extend and retract. This yields exactly 528 N of force each way at 0.5 MPa (739 N at 0.7 MPa), ensuring perfectly symmetric speed and thrust for balanced motion tasks.
Equipped with a magnet (-S), it triggers CMSE reed and DMSE solid-state sensors via the dual-side barrel grooves. The PT tapered porting matches the G1/4 standard for this bore. You can mount a primary workpiece on one end and a cam or position flag on the rear rod for external tracking without needing extra space on the active side.
Airtac SAID40 Double Rod Cylinder SAID40BX170S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX170S |
|---|---|
| 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 SAID40BX170S
| 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 SAID40BX170S Is Used
Symmetric Force Transfer
Provides identical 528 N thrust in both directions to drive transfer arms or indexing shuttles where push and pull dynamics must perfectly match.
Anti-Rotation Slides
Dual rods exiting both ends keep the load guided and prevent torsional twisting on long-stroke slides without external guide rails.
Rear-Rod Sensing
Mount the primary tool on the front rod while using the rear protruding rod to trigger DMSE solid-state sensors for precise end-of-stroke confirmation.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX170S the Right Cylinder?
Select this 40mm bore over the neighboring 32mm (345 N) when your mechanism needs symmetric push/pull power above 500 N, or step up to the 50mm (825 N) if your load demands higher thrust. A twin-rod design is chosen over a single-rod SAI when the application requires anti-rotation guidance, dual-side actuation, or rear-rod position sensing. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
This 170mm stroke is standard and falls within the 1200mm maximum for this bore. Remember that a plain SAID does not hold a load if air pressure drops or the valve centers; the piston drifts. The adjustable air cushions only decelerate the piston near stroke ends. For dead-load holding, use a SAIL lock, BSAID clamp-lock, or external pilot check valve.
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 SAID40BX170S FAQ
Because the rod occupies both sides of the piston, the extend and retract forces are equal. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, it is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile double-rod cylinders, matching the 40mm bore, 170mm stroke, and G1/4 port.
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