Airtac SAI63 Standard Cylinder SAI63BX900S
The AirTAC SAI63 Standard Cylinder SAI63BX900S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 900mm 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
- Stroke900 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 SAI63BX900S
The AirTAC SAI63X900-S is a double-acting ISO 15552 profile cylinder engineered for a 63mm bore and a 900mm stroke. It generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, making it well-suited for long-travel material handling and robotic transfer tasks. This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for use with CMSE and DMSE sensor switches.
As a genuine profile-barrel design without tie-rods, it integrates standardized mounting interfaces for direct interchangeability with other ISO 15552 cylinders. The barrel features sensor grooves on both sides to simplify switch placement. Adjustable air cushions at both ends absorb kinetic energy over this extended 900mm travel, protecting internal components from impact damage.
Airtac SAI63 Standard Cylinder SAI63BX900S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX900S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAI63BX900S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SAI63BX900S Is Used
Long-Travel Transfer
Drives large packaging cartons or pallets across extended conveyor gaps with reliable 1559 N push force.
Robotic End Effectors
Extends gripper assemblies deep into machine envelopes, utilizing the SUS304 rod for washdown corrosion resistance.
Vertical Lifting
Elevates heavy tote bins along a 900mm vertical path, requiring external guides to manage side loading.
Is the Airtac SAI63 Standard Cylinder SAI63BX900S the Right Cylinder?
Selecting this 63mm bore over the smaller 40mm option provides a significant jump in thrust, moving from 628 N up to 1559 N at 0.5 MPa. If an application requires even greater pushing power, stepping up to the 80mm bore yields 2513 N. Because this model features a 900mm stroke, the extended unsupported rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and piston scoring, implement an external linear guide rail or choose a fully guided cylinder to handle any lateral forces.
For direct ISO 15552 replacements, verify the 63mm bore, 900mm stroke, G3/8 PT port, and your required mounting accessory (such as an LB foot bracket or TC trunnion). Remember that a standard double-acting cylinder relies on continuous air pressure to hold its position; if pneumatic supply is lost, the rod will drift. To securely lock a suspended load without live pressure, specify the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant instead of relying on the cushion.
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 SAI63BX900S FAQ
At 0.5 MPa, this 63mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. If operated at 0.7 MPa, the pushing force increases to 2182 N.
Yes, the SAI series is dimensionally interchangeable per ISO 15552. Ensure your existing setup matches the 63mm bore, 900mm stroke, and G3/8 port before installing.
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