Airtac SAI63 Standard Cylinder SAI63X125
The AirTAC SAI63 Standard Cylinder SAI63X125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 125mm 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
- Stroke125 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 SAI63X125
The AirTAC SAI63X125 is a double-acting ISO 15552 profile cylinder built to deliver 1559 N of push force at 0.5 MPa. Its extruded aluminum barrel design omits traditional tie-rods, providing a smooth exterior that easily meets standardized mounting dimensions. This 63 mm bore and 125 mm stroke configuration is ideal for mid-tier automation tasks requiring substantial thrust.
Beyond the standard carbon steel piston rod and PT tapered porting, this unit features adjustable air cushions at both ends to manage impact at stroke completion. For environments requiring position feedback, the barrel includes integrated sensor grooves on both sides, ready to accept CMSE or DMSE switches when a magnet is specified.
Airtac SAI63 Standard Cylinder SAI63X125 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 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 SAI63X125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×125 | 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 SAI63X125 Is Used
Clamping Fixtures
Provides the 1559 N push force at 0.5 MPa necessary to secure medium-sized metal workpieces during machining operations.
Package Diverters
Uses the 125 mm stroke to actuate routing gates on production lines, smoothly redirecting heavy goods.
Material Ejection
Delivers rapid and consistent ejection of molded parts from machinery, utilizing the 30-800 mm/s speed range.
Is the Airtac SAI63 Standard Cylinder SAI63X125 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N at 0.5 MPa) lacks sufficient thrust, but an 80 mm bore (2513 N at 0.5 MPa) would be physically oversized. The 125 mm stroke provides a balanced extension for general manipulation without excessive rod overhang.
For applications that must maintain position during a complete loss of air pressure, remember that standard adjustable cushions only decelerate the piston near stroke ends and do not act as a locking mechanism. In drop-prevention scenarios, specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve. As a dimensionally interchangeable ISO 15552 component, it serves as a direct replacement for any cylinder matching this bore, stroke, G3/8 port, and standard mounting accessory footprint.
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 SAI63X125 FAQ
At a standard operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. It can reach up to 2182 N of push force at 0.7 MPa.
Yes, the SAI63X125 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensions fully interchangeable with other ISO 15552 compliant cylinders of the same bore and stroke.
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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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