Airtac SAID40 Double Rod Cylinder SAID40X275
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X275 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X275
The AirTAC SAID40X275 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 275mm stroke. Because a 16mm carbon steel rod exits both end covers, the annulus area is identical on extend and retract. This yields an equal force of 528N each way at 0.5MPa, ensuring perfectly symmetric speed and thrust for demanding transfer tasks.
The twin-rod architecture allows you to mount the primary workpiece on one end while attaching a position flag or cam to the rear rod for external tracking. The extruded aluminum barrel includes sensor grooves on both sides for CMSE or DMSE switches, and the end covers provide adjustable air cushioning to decelerate the piston at stroke limits.
Airtac SAID40 Double Rod Cylinder SAID40X275 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X275 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 275 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 SAID40X275
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×275 | 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 SAID40X275 Is Used
Symmetric Force Transfer
Drives loads back and forth with identical 528N thrust in both directions, ensuring stable dynamics in automated material handling.
Rear-Rod Sensing
Utilizes the protruding rear rod end to mount a physical limit flag, allowing external position tracking without interfering with the primary 275mm stroke work area.
Anti-Rotation Slides
Leverages the dual 16mm rods to guide the load and prevent torsional twist during vertical lifting or clamping operations.
Is the Airtac SAID40 Double Rod Cylinder SAID40X275 the Right Cylinder?
Choose this 40mm bore when an application requires balanced push and pull forces that a single-rod SAI cannot provide. If your project needs less force, the 32mm bore offers 345N each way at 0.5MPa; if you need more thrust, the 50mm bore provides 825N both directions. The 275mm stroke is a standard length, but because it exceeds 300mm overall, you should evaluate side-load conditions and use an external guide to prevent rod-bearing bending.
This cylinder uses a PT G1/4 port and accepts the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets used on single-rod variants. It is dimensionally interchangeable per ISO 15552. Note that this model does not hold its load when air pressure is lost; for position holding, consider an external rod lock or the SAIL 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 SAID40X275 FAQ
Because it is a double-rod cylinder, the effective piston area is the same in both directions. It outputs 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa on both extend and retract strokes.
Yes, it is dimensionally interchangeable with other ISO 15552 double-rod profile cylinders. It uses a PT G1/4 port and supports mounting accessories like FA, LB, and TC brackets.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAID40 Double Rod Cylinder SAID40X275
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.