Airtac SAI50 Standard Cylinder SAI50BX800
The AirTAC SAI50 Standard Cylinder SAI50BX800 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 800mm 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
- Stroke800 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 SAI50BX800
The AirTAC SAI50X800 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 982 N and a pull force of 825 N at 0.5 MPa. With an 800 mm stroke, it provides the extended travel necessary for material handling and automated transfer lines. The extruded aluminum barrel design omits tie-rods, offering a clean exterior that simplifies mounting and sensor placement.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads and does not include a magnet. For applications requiring end-position locking, the SAIL variant provides an air-released holding mechanism.
Airtac SAI50 Standard Cylinder SAI50BX800 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX800 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAI50BX800
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×800 | 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 SAI50BX800 Is Used
Long-Stroke Transfer
Pushes products or pallets across an 800 mm gap on automated conveyor lines using 982 N of thrust at 0.5 MPa.
Vertical Material Lift
Raises light fixtures or bins to high elevations, relying on the SUS304 rod for environmental stability.
Door Actuation
Opens and closes large industrial access doors or safety gates requiring extended linear reach.
Is the Airtac SAI50 Standard Cylinder SAI50BX800 the Right Cylinder?
Choosing this 50 mm bore is appropriate when 40 mm bore thrust (628 N at 0.5 MPa) is insufficient, but the larger 63 mm bore (1559 N at 0.5 MPa) would be excessive. At an 800 mm stroke, the unsupported piston rod is highly susceptible to bending under side loads. Utilizing external linear guides or a guided cylinder carriage is strongly recommended to prevent premature rod bearing wear.
As a dimensionally interchangeable ISO 15552 cylinder, this model serves as a direct replacement for other standard profile cylinders with matching 50 mm bore, 800 mm stroke, G1/4 ports, and standard mounting accessories like FA flanges or TC trunnions. Note that standard air cushions only decelerate the piston near stroke ends; they cannot hold a load if air pressure is lost.
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 SAI50BX800 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
No, an 800 mm stroke creates a long unsupported rod that will bend under significant side loads. You must use external linear guides or a guided cylinder to support the load and protect the rod bearing.
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