Airtac SAI63 Standard Cylinder SAI63BX850S
The AirTAC SAI63 Standard Cylinder SAI63BX850S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 850mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke850 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 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 SAI63 Standard Cylinder SAI63BX850S
The AirTAC SAI63X850-S is a double-acting ISO 15552 profile cylinder engineered for a 63mm bore and an extended 850mm stroke. It generates a robust 1559N of push force at 0.5MPa, making it well-suited for long-travel material handling and automated positioning tasks.
This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance in harsh environments. Equipped with a built-in magnet (-S), it seamlessly integrates with CMSE and DMSE sensor switches via the dual-side grooves on the extruded aluminum barrel. It features tapered PT port threads and adjustable air cushions at both ends to manage deceleration.
Airtac SAI63 Standard Cylinder SAI63BX850S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX850S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63BX850S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAI63 Standard Cylinder SAI63BX850S Is Used
Long-Travel Transfer
Drives extended pallet pushers and long-belt transfer stations where a full 850mm stroke is required to bridge machine gaps.
Automated Stacking
Elevates components in multi-tier stacking magazines, utilizing the 1559N push force to lift moderate loads reliably.
High-Bay Retrieval
Actuates telescopic arms in automated storage systems, benefiting from the SUS304 rod in varying climate conditions.
Is the Airtac SAI63 Standard Cylinder SAI63BX850S the Right Cylinder?
With a 63mm bore yielding 1559N at 0.5MPa, stepping down to a 50mm bore reduces output to 982N, while upgrading to an 80mm bore increases thrust to 2513N. Because this unit features an 850mm stroke, the extended rod is highly susceptible to bending under side loads; utilizing an external guide rail or a guided cylinder mechanism is critical to prevent premature rod-bearing wear.
For direct replacements, ensure the target unit shares the ISO 15552 mounting interface, a 63mm bore, 850mm stroke, G3/8 PT ports, and your required mounting accessory (such as an LB foot or TC trunnion). Remember that standard double-acting cylinders drift when air pressure is removed; if the application requires strict load-holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
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 SAI63 Standard Cylinder SAI63BX850S FAQ
The SAI63X850-S provides a push force of 1559N and a pull force of 1402N at 0.5MPa. At 0.7MPa, the push force increases to 2182N.
Yes, as a genuine AirTAC profile cylinder, it is dimensionally interchangeable per ISO 15552. Ensure your existing setup matches the G3/8 PT ports and the standard mounting interface.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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