Airtac SAI50 Standard Cylinder SAI50X400
The AirTAC SAI50 Standard Cylinder SAI50X400 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 400mm 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
- Stroke400 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 SAI50X400
The AirTAC SAI50X400 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 400mm stroke. It provides a robust 982 N push force at 0.5 MPa, extending smoothly to handle medium-duty positioning tasks. The extruded aluminum barrel omits tie rods, presenting a clean exterior that matches standardized mounting dimensions for straightforward machinery integration.
This unit arrives configured with a standard carbon steel piston rod and PT tapered port threading. It lacks an internal magnet; if your application requires position feedback, you must specify the -S option to equip the dual-side sensor grooves for CMSE or DMSE switches. For operations needing heat resistance, alternative seals like Viton (H) are available to withstand elevated thermal loads.
Airtac SAI50 Standard Cylinder SAI50X400 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X400 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 SAI50X400
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 SAI50X400 Is Used
Material Diversion
Pushes medium-weight packages or pallets laterally across sorting lines using the full 400mm extension.
Gate Operation
Actuates access doors or safety chutes on automated machinery where a long reach is required.
Stack Discharge
Ejects completed product stacks from assembly zones, utilizing 982 N of thrust at 0.5 MPa.
Is the Airtac SAI50 Standard Cylinder SAI50X400 the Right Cylinder?
When sizing this actuator, compare its 982 N output at 0.5 MPa against the smaller 40mm bore (628 N) or the larger 63mm bore (1559 N) to match your exact load requirements. Because this model features a 400mm stroke, the extended rod is highly susceptible to bending under side loads; utilizing an external guide rail or a dedicated guided cylinder prevents premature rod-bearing wear.
As a dimensionally standardized profile cylinder, it serves as a direct replacement for any ISO 15552 component with matching 50mm bore, 400mm stroke, and G1/4 port specifications. Remember that the adjustable air cushions only decelerate the piston at stroke ends; if your system must hold a load vertically without continuous air pressure, select the SAIL locking variant or install 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 SAI50 Standard Cylinder SAI50X400 FAQ
At an operating pressure of 0.5 MPa, this 50mm bore cylinder generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X400 is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. You can swap it in directly using the standard mounting interface and G1/4 port.
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