Airtac SAI50 Standard Cylinder SAI50X40
The AirTAC SAI50 Standard Cylinder SAI50X40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 40mm 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.
- BoreØ50 mm
- Stroke40 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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 SAI50 Standard Cylinder SAI50X40
The AirTAC SAI50X40 is a double-acting ISO 15552 profile cylinder engineered for compact, high-force automation. It generates 982 N of push force at 0.5 MPa, making it highly effective for short-cycle clamping and pressing over its 40 mm stroke. The extruded aluminum barrel eliminates tie-rods, providing a clean profile that drops directly into standard ISO 15552 mounting interfaces.
This configuration utilizes a standard carbon steel piston rod and PT tapered port threads. Because it lacks an integrated magnet, position sensing requires external switches; adding the -S magnet variant enables direct CMSE or DMSE sensors along the dual barrel grooves. For operations requiring delayed end-of-stroke positioning, the SAIJ adjustable-stroke variant offers a useful alternative.
Airtac SAI50 Standard Cylinder SAI50X40 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50X40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 SAI50 Standard Cylinder SAI50X40 Is Used
Short-Stroke Pressing
Delivers 982 N of force at 0.5 MPa for seating bearings, stamping small components, and performing light assembly presses within a tight 40 mm travel.
Product Diversion
Provides rapid, robust actuation for diverting packages or routing materials on conveyor lines where a compact 50 mm bore fits neatly into existing guarding.
Clamping Fixtures
Ideal for holding workpieces securely in machining and welding fixtures, utilizing its high pull force to maintain grip during secondary operations.
Is the Airtac SAI50 Standard Cylinder SAI50X40 the Right Cylinder?
Select this 50 mm bore when an application demands more power than a 40 mm cylinder (which provides 628 N at 0.5 MPa) but lacks the physical space for a 63 mm unit. The 40 mm stroke is optimal for brief, powerful movements. Because the stroke is under 300 mm, rod-bearing bending is minimal, though external guides should still manage any lateral loads.
This model serves as a direct dimensional replacement for any ISO 15552 cylinder matching its 50 mm bore, 40 mm stroke, and PT port configuration. If the machinery must maintain position during a loss of air pressure, note that the standard adjustable air cushions only decelerate the piston and do not act as a brake; the SAIL variant with an air-released lock is required for secure load holding.
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 SAI50 Standard Cylinder SAI50X40 FAQ
At 0.5 MPa, this cylinder provides 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X40 is dimensionally interchangeable with any standard ISO 15552 profile cylinder. You can swap it directly using the existing mounting accessories and PT port connections.
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Standard models are processed and dispatched in 3-5 business days.
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