Airtac SAID40 Double Rod Cylinder SAID40X120S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X120S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 SAID40X120S
The AirTAC SAID40X120-S is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a carbon steel rod out of both end covers, yielding an identical effective area on extend and retract. This means you get 528 N of force in both directions at 0.5 MPa, ensuring perfectly symmetric speed and thrust.
Because this configuration includes a magnet (-S), it supports AirTAC CMSE reed and DMSE solid-state electronic sensors via the dual-side barrel grooves. The twin-rod architecture is ideal for mounting a workpiece on the front while driving a cam, position flag, or secondary mechanism from the rear rod end.
Airtac SAID40 Double Rod Cylinder SAID40X120S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X120S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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 SAID40X120S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 SAID40X120S Is Used
Symmetric Transfer
Equal 528 N thrust both ways makes it ideal for shuttle mechanisms that push and pull identical loads without speed variations.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation, providing stable guidance for precision machining or clamping fixtures.
Rear-Rod Sensing
Mount the primary tool on the front rod and use the rear protrusion to trigger CMSE or DMSE sensors for dual-side control.
Is the Airtac SAID40 Double Rod Cylinder SAID40X120S the Right Cylinder?
Choose this 40 mm bore over the smaller 32 mm (345 N at 0.5 MPa) when you need higher symmetric thrust, or step up to the 50 mm bore (825 N) for heavier loads. A double-rod design is preferred over a single-rod SAI when the application demands superior anti-rotation guidance or dual-station actuation. The PT tapered port is G1/4. For mounting, use the reduced SAID set: Basic, FA, LB, TC, FTC, TCM1, or TCM2 (FB, CA, CB, and CR are single-rod only). It is dimensionally interchangeable with other ISO 15552 cylinders.
Note that the adjustable air cushions at both ends only decelerate the piston near stroke completion; they do not hold a load. If your setup must maintain position without live air pressure, consider an external rod lock, a SAIL pneumatic lock, or a BSAID clamp-lock cylinder.
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 SAID40X120S FAQ
It provides 528 N of force at 0.5 MPa and 739 N at 0.7 MPa. Because it is a double-rod cylinder, the annulus area is identical on both sides, meaning extend and retract forces are perfectly equal.
Yes, it is dimensionally interchangeable per ISO 15552. However, SAID uses a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits the FB, CA, CB, and CR mounts found on single-rod variants.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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