Airtac SAID40 Double Rod Cylinder SAID40X225
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X225 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X225
The AirTAC SAID40X225 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 225 mm stroke. Because a carbon steel rod exits both end covers, the effective piston area is identical in each direction, yielding exactly 528 N of force on both extend and retract at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
Beyond equal force, the rear rod extension allows engineers to mount a position flag or secondary cam while the front end drives the primary load. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific configuration ships without a magnet.
Airtac SAID40 Double Rod Cylinder SAID40X225 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X225 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 SAID40X225
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 SAID40X225 Is Used
Symmetric Transfer
Drives a transfer carriage with identical 528 N force and speed in both directions, ensuring perfectly timed symmetric movements without pressure spikes.
Anti-Rotation Slides
The twin-rod geometry prevents the attached slide from twisting during vertical lifts, maintaining precise linear tracking without external guides.
Rear-Cam Actuation
Mounts a primary workpiece on the front rod while utilizing the rear protrusion to trigger a mechanical limit switch or secondary mechanism.
Is the Airtac SAID40 Double Rod Cylinder SAID40X225 the Right Cylinder?
Select this 40 mm bore double-rod actuator when your application demands equal push and pull forces alongside anti-rotation guidance. If your mechanism requires less force, stepping down to the 32 mm bore provides 345 N each way at 0.5 MPa, while stepping up to the 50 mm bore offers 825 N. Unlike a single-rod SAI cylinder, the SAID twin-rod design inherently resists torsional twist under offset loads.
This model features PT tapered ports sized at G1/4 and uses the standard SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR variants found on single-rod units. Because the stroke is 225 mm, the extended rod length requires external guidance to prevent rod-bearing bending under heavy side loads. Note that this cylinder relies on adjustable air cushions to decelerate the piston; it will drift and cannot hold a load if air pressure is lost. For locking requirements, consider the BSAID clamp-lock 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 SAID40X225 FAQ
The SAID40X225 generates 528 N of force at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. Because it is a double-rod cylinder, these pull-side figures apply equally to both the extend and retract strokes.
Yes, the SAID40X225 is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other ISO 15552 double-rod profile cylinders, matching standard mounting dimensions while offering AirTAC reliability.
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