Airtac SAI50 Standard Cylinder SAI50AX850
The AirTAC SAI50 Standard Cylinder SAI50AX850 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 SAI50AX850
The AirTAC SAI50X850 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and an 850mm stroke. It delivers a push force of 982 N at 0.5 MPa, making it suitable for long-travel automation tasks. The barrel is extruded aluminum with sensor grooves on both sides for flexible position detection.
This specific configuration uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It also features PT tapered port threads. As a true profile cylinder, it is dimensionally interchangeable per ISO 15552 standards, providing a direct replacement for other ISO 15552 cylinders without tie-rods.
Airtac SAI50 Standard Cylinder SAI50AX850 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX850 |
|---|---|
| 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 SAI50AX850
| 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 SAI50AX850 Is Used
Long-Travel Conveying
Drives extended product transfers or pallet pushers over an 850mm distance where full ISO 15552 mounting interchangeability is required.
High-Reach Palletizing
Lifts or positions lightweight packaging materials at height, utilizing the 982N push force and SUS420J2 stainless rod for environmental resilience.
Automated Stacking
Executes tiered stacking operations in end-of-line packaging, relying on adjustable air cushions at both ends to decelerate the 850mm travel smoothly.
Is the Airtac SAI50 Standard Cylinder SAI50AX850 the Right Cylinder?
Selecting this 50mm bore over a 40mm model upgrades your push force from 628 N to 982 N at 0.5 MPa, while stepping up to a 63mm bore yields 1559 N. This 850mm stroke operates within the 32-100 bore speed range of 30-800 mm/s.
Because the stroke is 850mm, the unsupported rod is susceptible to bending under side loads. Implement an external guide rail or use a guided cylinder to prevent rod-bearing damage. Note that this standard cylinder does not hold its load when air pressure is removed; for fail-safe holding, consider the SAIL (air-released lock) variant or an external rod lock. Replacement matching requires a 50mm bore, 850mm stroke, PT port, and standard mounting accessories like FA or LB.
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 SAI50AX850 FAQ
At a standard 0.5 MPa operating pressure, the SAI50X850 provides 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 ISO 15552 profile cylinder. Its standardized mounting dimensions make it interchangeable with other ISO 15552 cylinders, serving as a direct replacement.
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Standard models are processed and dispatched in 3-5 business days.
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