Airtac SAI50 Standard Cylinder SAI50BX850
The AirTAC SAI50 Standard Cylinder SAI50BX850 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 850mm 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
- Stroke850 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 SAI50BX850
The AirTAC SAI50X850 is a double-acting ISO 15552 profile cylinder offering a push force of 982 N at 0.5 MPa. Because the 850 mm stroke exceeds the 1200 mm maximum standard stroke for this bore, it is manufactured as a non-standard made-to-order unit. This extended stroke is well-suited for automating lengthy material transfer or large-format press operations.
Beyond the standard dimensions, this specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing for direct mounting of CMSE or DMSE switches if a magnet is specified later.
Airtac SAI50 Standard Cylinder SAI50BX850 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX850 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 850 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 SAI50BX850
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×850 | 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 SAI50BX850 Is Used
Extended Material Transfer
Drives long-stroke pusher arms on conveyor lines to shift heavy pallets or product totes between processing stations.
Large-Format Press
Actuates the moving platen on oversized assembly presses, utilizing the 982 N push force at 0.5 MPa to seat components.
High-Bay Extraction
Reaches deep into storage racking to extract or insert heavy totes in automated retrieval systems.
Is the Airtac SAI50 Standard Cylinder SAI50BX850 the Right Cylinder?
If an application requires less reach, stepping down to a 40 bore yields 628 N at 0.5 MPa, while moving up to a 63 bore provides 1559 N. Because this 850 mm stroke creates a long unsupported rod, side loads can cause severe rod-bearing bending. To manage this, implement an external guide rail or select a guided cylinder to prevent premature wear.
As a true ISO 15552 profile cylinder, this model is dimensionally interchangeable with other ISO 15552 cylinders. To match this exact unit, select a 50 mm bore, 850 mm stroke, G1/4 port, and pair it with an FA flange or LB foot mounting accessory. Note that a plain SAI cylinder does not hold its load when air pressure is lost; for position holding, consider the SAIL variant or an external rod lock.
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 SAI50BX850 FAQ
At 0.5 MPa, the SAI50X850 provides 982 N of push force and 825 N of pull force. If operating pressure increases to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X850 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other standard ISO 15552 cylinders such as those from SMC or Festo, provided the mounting interface and G1/4 port match.
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