Airtac SAID40 Double Rod Cylinder SAID40AX260S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX260S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 260mm 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
- Stroke260 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX260S
The AirTAC SAID40X260-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 260mm stroke. Because the piston rod exits both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This through-rod geometry provides superior anti-rotation guidance compared to a single-rod SAI.
Equipped with a magnet (-S), this unit triggers AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. The rod is constructed from SUS420J2 stainless steel (option A) for enhanced corrosion resistance, and fluid connections use PT tapered threads. Remember that the rear protruding rod requires extra clearance in your machine layout.
Airtac SAID40 Double Rod Cylinder SAID40AX260S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX260S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 260 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 SAID40AX260S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×260 | 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 SAID40AX260S Is Used
Symmetric Force Transfer
Drives loads requiring identical push and pull dynamics, using the 528 N both-way force to ensure consistent motion profiles without speed variations.
Dual-Station Actuation
Simultaneously operates two separate mechanisms from a single cylinder, utilizing the twin protruding rods to actuate opposing stations in parallel.
Anti-Rotation Slides
Guides heavy workpieces against rotational torque, relying on the double-ended rod geometry to maintain strict linear alignment during precision tasks.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX260S the Right Cylinder?
Select this 40mm bore when an application demands perfectly symmetric force and speed, as it generates 528 N each way at 0.5 MPa. If you need less force, the 32mm bore offers 345 N; if you require more, the 50mm bore provides 825 N. The twin-rod design is ideal for driving twin stations or mounting a rear cam for position feedback.
At 260mm stroke, the unsupported rod length increases; use an external guide to prevent rod-bearing bending under heavy side loads. This cylinder is dimensionally interchangeable per ISO 15552. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that standard air cushions only decelerate the piston near stroke end; they do not hold the load if air pressure drops. For position holding, use an external pilot-operated 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 SAID40AX260S FAQ
Because the rod occupies both sides of the piston, the effective area is equal in both directions. It provides 528 N of force at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, it is a profile-type cylinder dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 double-rod cylinders, using the standard mounting interface and PT G1/4 ports.
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