Airtac SAI40 Standard Air Cylinder SAI40X50S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 SAI40X50S
The AirTAC SAI40X50-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 50mm stroke. It delivers a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it well-suited for compact mid-range actuation tasks. The barrel is machined from extruded aluminum and includes integrated sensor grooves on both sides for straightforward switch mounting.
This specific configuration includes a magnetic piston (-S) for non-contact position detection with CMSE or DMSE series switches. It utilizes a standard carbon steel piston rod and features a PT tapered G1/4 port thread. Adjustable air cushions at both ends ensure smooth end-of-stroke deceleration, protecting your mechanical components from impact loads.
Airtac SAI40 Standard Air Cylinder SAI40X50S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAI40X50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 SAI40X50S Is Used
Short-Stroke Clamping
Provides reliable 628 N clamping force at 0.5 MPa for securing workpieces during machining or assembly operations.
Package Diverting
The 50mm stroke offers rapid extension and retraction for routing packages or actuating gates on material handling lines.
Gate Actuation
Ideal for operating small pneumatic gates and doors where a compact 40mm bore footprint and magnetic position feedback are required.
Is the Airtac SAI40 Standard Air Cylinder SAI40X50S the Right Cylinder?
Choose this 40mm bore when an application requires more thrust than the 32mm variant (402 N at 0.5 MPa) but has spatial constraints that prohibit stepping up to the 50mm bore (982 N at 0.5 MPa). The 50mm stroke is optimal for short clamping and indexing duties. Because the stroke is well under 300mm, rod-bearing bending stress is minimal, though external guides should still be used to absorb any direct lateral loads.
As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a direct drop-in replacement for other ISO 15552 standard cylinders. It uses a G1/4 PT port, accepts standard FA or FB flange mounting accessories, and includes the -S magnet option for sensor compatibility. Note that this standard cylinder does not hold position upon loss of air pressure; for load-holding requirements, consider the SAIL or BSAI 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 SAI40 Standard Air Cylinder SAI40X50S FAQ
At an operating pressure of 0.5 MPa, the SAI40X50-S provides a push force of 628 N and a pull force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X50-S is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 standard cylinders from various manufacturers.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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