Airtac SAI63 Standard Cylinder SAI63BX270
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX270 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 270mm 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
- Stroke270 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 SAI63BX270
The AirTAC SAI63X270 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force and 1402 N of pull force at 0.5 MPa. This specific 270 mm stroke configuration is ideal for automated machinery requiring extended linear travel without stepping up to a larger bore size. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
Built for demanding environments, this unit features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance. It utilizes PT tapered port threads and includes adjustable air cushions at both ends to dampen impact at stroke completion. Note that this model does not include a magnet; if position sensing is required, the -S variant with CMSE or DMSE switches would be necessary.
Airtac SAI63 Standard Cylinder SAI63BX270 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX270 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 270 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 SAI63BX270
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×270 | 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 SAI63BX270 Is Used
Extended Transfer Pushing
Pushes products or pallets along a conveyor line over a 270 mm distance, utilizing the 1559 N thrust output to overcome friction on guide rails.
Component Insertion
Drives parts into fixtures or housings on an automated assembly line, using the full 270 mm stroke to reach across machine guarding.
Package Diverting
Actuates a diverter arm in a logistics sorting station, where the SUS304 rod provides reliable operation even in humid or washdown environments.
Is the Airtac SAI63 Standard Cylinder SAI63BX270 the Right Cylinder?
Choose this 63 mm bore when an application demands roughly 1559 N of thrust at 0.5 MPa, stepping up from the 50 mm bore (982 N) or down from the 80 mm bore (2513 N). The 270 mm stroke provides ample travel for material handling, but at this length the unsupported rod is susceptible to bending under side loads. To prevent premature rod-bearing wear, implement an external guide rail or select a guided cylinder module.
This cylinder relies on live air pressure to hold its position; it will drift if pressure is lost, as the adjustable cushions only decelerate the piston near the end of travel and do not act as a brake. For gravity-lowering loads that require fail-safe holding, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. As a direct ISO 15552 replacement, match the 63 mm bore, 270 mm stroke, G3/8 PT ports, and appropriate mounting accessories like a TC trunnion or FA flange.
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 SAI63BX270 FAQ
At a standard operating pressure of 0.5 MPa, the SAI63X270 generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes. The SAI63X270 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensions fully interchangeable with other ISO 15552 cylinders from brands like Festo or SMC, provided the bore and stroke match.
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