Airtac SAI40 Standard Air Cylinder SAI40X145S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X145S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 145mm 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
- Stroke145 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 SAI40 Standard Air Cylinder SAI40X145S
The AirTAC SAI40X145-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 145mm non-standard stroke. It generates 879N of push force at 0.7 MPa, making it well-suited for mid-range automation tasks requiring precise intermediate positioning. The extruded aluminum barrel design ensures rigid performance without the bulk of external tie rods.
Equipped with a magnetic piston (-S), this unit supports CMSE and DMSE reed switches via sensor grooves on both sides of the barrel. It utilizes a standard carbon steel piston rod and PT tapered port threads. As a genuine AirTAC component, it guarantees reliable operation across its 30-800 mm/s speed range.
Airtac SAI40 Standard Air Cylinder SAI40X145S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X145S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 145 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 SAI40 Standard Air Cylinder SAI40X145S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×145 | 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 SAI40 Standard Air Cylinder SAI40X145S Is Used
Component Clamping
Provides 628N of push force at 0.5 MPa to securely hold medium-sized metal parts during milling or drilling operations.
Package Diverting
Uses the 145mm stroke and magnetic piston to actuate routing gates on packaging lines, confirming extension via DMSE sensors.
Material Ejection
Cycles at up to 800 mm/s to rapidly push stamped components out of a press area, relying on adjustable cushions to absorb impact.
Is the Airtac SAI40 Standard Air Cylinder SAI40X145S the Right Cylinder?
Selecting this 40mm bore model makes sense when a 50mm bore (delivering 1374N at 0.7 MPa) would be excessive, but a 32mm bore (563N at 0.7 MPa) lacks the necessary thrust. The 145mm stroke is a made-to-order dimension outside the standard increments, so expect a brief lead time for manufacturing. Because the stroke is under 300mm, rod-bearing bending stress is minimal, though external guides are still recommended if absorbing heavy lateral loads.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other standard profile cylinders with a 40mm bore, 145mm stroke, G1/4 PT ports, and standard mounting accessories like FA or FB flanges. Note that the adjustable air cushions only decelerate the piston at end-of-stroke; they do not hold a load. If your fixture requires position holding without live air pressure, consider the SAIL locking variant or 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 SAI40 Standard Air Cylinder SAI40X145S FAQ
At an operating pressure of 0.7 MPa, this 40mm bore cylinder provides a push force of 879N and a pull force of 739N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The SAI40X145-S shares the exact ISO 15552 mounting interface and dimensions, allowing it to serve as a drop-in replacement for any standard 40mm bore profile cylinder with matching stroke and G1/4 ports.
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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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