Airtac SAI50 Standard Cylinder SAI50X850
The AirTAC SAI50 Standard Cylinder SAI50X850 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 SAI50X850
The AirTAC SAI50X850 is a double-acting profile cylinder built to the ISO 15552 standard, making it dimensionally interchangeable with other ISO 15552 cylinders in your fixture designs. It delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, which suits moderate-load positioning tasks. The 850 mm stroke provides the extended travel needed for large-format material handling.
This model features a standard carbon steel piston rod for structural durability. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE or DMSE switches when position feedback is required. For higher thermal demands, the seal options can be upgraded from standard TPU to Viton (H).
Airtac SAI50 Standard Cylinder SAI50X850 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X850 |
|---|---|
| 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 SAI50X850
| 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 SAI50X850 Is Used
Long-Transfer Conveying
Pushes products or pallets across an 850 mm gap on packaging lines using its 982 N thrust at 0.5 MPa.
Pallet Push-Off
Diverts corrugated cartons from a main conveyor belt to a downstream sorting lane with extended travel.
Large-Part Ejection
Ejects molded components from large-format press dies over a long distance to clear the tooling area.
Is the Airtac SAI50 Standard Cylinder SAI50X850 the Right Cylinder?
When sizing this actuator, stepping down to a 40 mm bore drops the 0.5 MPa push force to 628 N, while moving up to a 63 mm bore increases it to 1559 N. Use the 50 mm bore when your load requires roughly 1000 N of thrust within a compact footprint.
Because this 850 mm stroke exceeds 300 mm, the unsupported rod length is susceptible to bending under side loads. To prevent premature rod-bearing wear, guide the load externally using linear rails or a dedicated guided cylinder. Note that the adjustable air cushions at both ends decelerate the piston near stroke ends but do not lock the load; if you need to hold position without air pressure, select the SAIL variant or an external rod lock. To match this unit, specify a 50 mm bore, 850 mm stroke, G1/4 PT ports, and your required mounting accessories like an FA flange or LB foot.
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 SAI50X850 FAQ
At an operating pressure of 0.5 MPa, the SAI50X850 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.
Yes, the SAI50X850 is a genuine AirTAC profile cylinder with an ISO 15552 mounting interface, making it a direct replacement for other ISO 15552 cylinders. Ensure your port type (G1/4 PT) and mounting dimensions match.
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