Airtac SAID40 Double Rod Cylinder SAID40AX950S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX950S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 950mm 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
- Stroke950 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX950S
The AirTAC SAID40X950-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 950mm stroke and an integrated magnet (-S) for CMSE reed and DMSE electronic sensors. Because the piston rod exits both end covers, the annulus area is identical on both sides. This yields perfectly symmetric dynamics, delivering 528N of force in both extend and retract directions at 0.5 MPa (739N at 0.7 MPa). The twin rods inherently resist torsional loads, keeping the workpiece guided against rotation better than a single-rod unit.
This specific configuration uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads. As a 950mm stroke exceeds the 40mm bore's 800mm standard maximum, this is a made-to-order non-standard unit. The extruded aluminum barrel includes sensor grooves on both sides, and the rear rod protrusion requires extra clearance space to prevent end-of-stroke collisions.
Airtac SAID40 Double Rod Cylinder SAID40AX950S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX950S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 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 SAID40AX950S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SAID40AX950S Is Used
Symmetric-Force Transfer
Drives a workpiece shuttle between two stations with identical 528N push and pull force at 0.5 MPa, ensuring consistent cycle timing in both travel directions.
Anti-Rotation Slides
Utilizes the twin-rod architecture to guide a vertical lifting slide, preventing torsional twist and maintaining precise alignment over the 950mm travel.
Through-Rod Sensing
Mounts the primary work tool on the front rod and a DMSE electronic sensor target flag on the rear rod end to track exact mid-stroke position externally.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX950S the Right Cylinder?
Choose this double-rod configuration when an application demands equal push and pull forces, dual-side work mounting, or rear-position sensing flags. If you need higher thrust, stepping up to the 50mm bore yields 825N both ways at 0.5 MPa. Unlike a single-rod SAI cylinder, the SAID40X950-S provides anti-rotation guidance via its twin rods. Mounting options are limited to the reduced SAID set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). This unit is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders.
At 950mm, the long unsupported stroke increases the risk of rod-bearing bending and side-load wear; an external guide rail is strongly recommended to support the load. Note that a plain SAID does not hold its position or load when air is lost, exhausted, or the valve is centred—the piston drifts. The adjustable air cushions only decelerate the piston near stroke end, acting as a brake neither for gravity drops nor for position holding. For secure load holding without live pressure, consider the SAIL (air-released lock) or BSAID (clamp-lock) variants.
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 SAID40AX950S FAQ
Because the double-rod design subtracts the rod area on both sides, the force is equal in both directions. It provides 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa.
Yes, the SAID profile cylinder is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 double-rod cylinders, matching the 40mm bore footprint and PT port interface.
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