Airtac SAI50 Standard Cylinder SAI50AX400
The AirTAC SAI50 Standard Cylinder SAI50AX400 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 SAI50AX400
The AirTAC SAI50X400 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 400mm stroke. It provides a push force of 982 N and a pull force of 825 N at 0.5 MPa, making it well-suited for medium-duty automation tasks requiring a long linear travel distance.
This specific configuration incorporates an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid settings. It utilizes PT tapered port threads (G1/4) and lacks a standard magnet, meaning it will not directly interface with cylinder sensors unless modified.
Airtac SAI50 Standard Cylinder SAI50AX400 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX400 |
|---|---|
| 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 SAI50AX400
| 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 SAI50AX400 Is Used
Material Handling Diverters
Ideal for pushing packages or totes on a 400mm linear conveyor lane, utilizing the 982 N push force to redirect medium-weight goods reliably.
Component Indexing
Moves workpieces between machining stations over a 400mm gap, where the SUS420J2 stainless rod withstands minor splashes of cutting fluid.
Vertical Lifting Gates
Actuates lightweight access doors or pallet stops in storage systems, providing 825 N of pull force to retract the barrier safely.
Is the Airtac SAI50 Standard Cylinder SAI50AX400 the Right Cylinder?
When configuring your setup, verify if the 982 N thrust at 0.5 MPa is sufficient. If your application requires less force, stepping down to a 40mm bore yields 628 N, while moving up to a 63mm bore provides 1559 N. Because this 400mm stroke generates a long unsupported rod extension, use an external guide rail or a guided cylinder to prevent rod-bearing bending under any side load.
This model is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other ISO 15552 profile cylinders. Key matching parameters include the 50mm bore, 400mm stroke, G1/4 PT port, and standard mounting accessories like FA/FB flanges. Remember that a plain SAI cylinder relies on live air pressure to maintain its position; if pneumatic pressure is lost, the piston will drift. For safety applications requiring position holding without continuous air, consider the SAIL locking variant.
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 SAI50AX400 FAQ
At an operating pressure of 0.5 MPa, this 50mm bore cylinder generates a push (extend) force of 982 N and a pull (retract) force of 825 N.
Yes, the SAI50X400 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 standard cylinders of the same bore and stroke.
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