Airtac SAI50 Standard Cylinder SAI50BX425
The AirTAC Airtac SAI50 Standard Cylinder SAI50BX425 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 425mm 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
- Stroke425 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 SAI50BX425
The AirTAC SAI50X425 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 425mm stroke. It delivers a push force of 982 N at 0.5 MPa, making it well-suited for medium-duty handling tasks that require a long extension reach.
This variant is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes integrated sensor grooves on both sides, allowing for direct mounting of position switches when required.
Airtac SAI50 Standard Cylinder SAI50BX425 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX425 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 425 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 SAI50BX425
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×425 | 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 SAI50BX425 Is Used
Automated Stamping
Provides the 982 N push force required to actuate medium-duty stamping and forming presses over a 425mm travel distance.
Long-Reach Diverting
Drives extended diverter arms on packaging lines where a lengthy 425mm stroke is necessary to clear wide product profiles.
Pallet Handling
Pushes or positions pallets and heavy totes in automated storage systems using its robust 50mm bore profile barrel.
Is the Airtac SAI50 Standard Cylinder SAI50BX425 the Right Cylinder?
For applications requiring less force, stepping down to a 40mm bore provides 628 N at 0.5 MPa, while moving up to a 63mm bore yields 1559 N for heavier loads. Because this 425mm stroke exceeds 300mm, the extended unsupported rod is susceptible to bending under side loads; utilizing an external guide rail or a guided cylinder will prevent premature rod-bearing wear.
As an ISO 15552 standardized profile cylinder, it serves as a dimensionally interchangeable direct replacement for any matching 50mm bore, 425mm stroke ISO 15552 unit. To mount this unit, select standard FA/FB flanges or TC trunnion brackets, and note that a magnet (-S) is not included in this configuration. If the machinery loses air pressure, this standard cylinder cannot hold a load and will drift; use an external pilot-operated check valve or the SAIL lock variant for fail-safe 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 SAI50BX425 FAQ
At an operating pressure of 0.5 MPa, the SAI50X425 generates a push force of 982 N and a pull force of 825 N.
Yes, the SAI50X425 is built to the ISO 15552 profile standard, making its mounting dimensions fully interchangeable with other ISO 15552 cylinders of the same bore and stroke.
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