Airtac SAI40 Standard Air Cylinder SAI40BX55S
The AirTAC SAI40 Standard Air Cylinder SAI40BX55S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 55mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke55 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 SAI40BX55S
The AirTAC SAI40X55-S is a double-acting ISO 15552 profile cylinder offering 628N of push force at 0.5 MPa. Its 55mm stroke is ideal for short-travel clamping and ejection tasks. The extruded aluminum barrel omits tie rods for a clean exterior.
Configured here with a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in washdown or chemically exposed environments. The integrated magnet (-S) allows direct mounting of CMSE or DMSE sensor switches along the dual side grooves. Fluid ports feature PT tapered threads.
Airtac SAI40 Standard Air Cylinder SAI40BX55S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX55S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 55 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 SAI40BX55S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×55 | 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 SAI40BX55S Is Used
Package Ejection
Provides rapid 55mm strokes to push cartons off processing lines using 628N of thrust.
Small Part Clamping
Holds lightweight machined components securely during milling using the SUS304 rod.
Sensor Positioning
Uses the built-in magnet to trigger DMSE switches for precise end-of-stroke verification.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX55S the Right Cylinder?
If an application requires slightly less force, stepping down to a 32mm bore yields 402N at 0.5 MPa. For heavier lifting, a 50mm bore provides 982N. This 55mm stroke keeps the rod fully supported for high side-load tolerance.
As a dimensionally interchangeable ISO 15552 unit, it serves as a direct replacement matching the 40mm bore, 55mm stroke, PT G1/4 port, and standard mounting accessories like FA flanges. Note that standard double-acting cylinders drift if air pressure is lost; use a SAIL variant for pneumatic locking.
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 SAI40BX55S FAQ
At 0.5 MPa, it provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI series is dimensionally interchangeable per ISO 15552 standards, allowing it to drop into existing 40mm bore, G1/4 port mounting setups.
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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