Airtac SAID40 Double Rod Cylinder SAID40AX150
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX150
The AirTAC SAID40X150 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 150 mm stroke. Because the piston rod exits both end covers, the effective annulus area is identical on extend and retract, yielding an equal 528 N of force in both directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
This specific configuration utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The barrel is an extruded aluminum profile with sensor grooves on both sides, and fluid connections use PT tapered threads. You can mount a workpiece on the front rod end and a cam or position flag on the rear protruding rod to trigger external reed or solid-state sensors.
Airtac SAID40 Double Rod Cylinder SAID40AX150 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAID40AX150
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 SAID40AX150 Is Used
Symmetric Transfer
Drives a transfer carriage with identical 528 N push and pull force, ensuring smooth acceleration and deceleration of symmetric loads without speed variations.
Dual-Station Actuation
Simultaneously operates two separate mechanisms from one piston, using the front rod to clamp a part while the rear rod actuates a secondary diverter gate.
Anti-Rotation Slide
Guides a precision vertical slide using the twin-rod structure to prevent torsional twisting, keeping the tooling perfectly aligned throughout the 150 mm travel.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX150 the Right Cylinder?
Select this 40 mm bore when an application demands perfectly matched bidirectional force and superior anti-rotation guidance that a single-rod SAI cannot provide. If your mechanism requires less force, stepping down to the 32 mm bore offers 345 N both ways at 0.5 MPa; stepping up to the 50 mm bore provides 825 N. For this 150 mm stroke, the 16 mm rod and M12x1.25 thread handle moderate side loads well, though longer unsupported strokes benefit from an external guide.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders, utilizing a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Note that a plain SAID does not hold its position or lock the load when air pressure is lost; the adjustable air cushions only decelerate the piston near stroke ends. For dead-load holding, consider an external pilot-operated check valve or 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 SAID40AX150 FAQ
Because it is a double-rod cylinder, the force is identical in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, the SAID40X150 is dimensionally interchangeable per ISO 15552 standards. It shares the same mounting footprint and utilizes PT tapered ports, allowing it to serve as a drop-in replacement for standard ISO 15552 double-rod profile cylinders.
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