Airtac SAI125 Standard Air Cylinder SAI125X150
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X150
The AirTAC SAI125X150 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136N push force at 0.5 MPa, this 125mm bore unit is tailored for high-load handling. The extruded aluminum barrel omits tie-rods, providing a smooth exterior that simplifies cleaning and reduces contamination traps in demanding environments.
This 150mm stroke configuration features standard carbon steel piston rod construction and PT G1/2 porting. Without a magnet specified, it is optimized for pure pneumatic actuation. For applications requiring end-position confirmation, the -S variant accommodates CMSE or DMSE switches in the dual lateral sensor grooves.
Airtac SAI125 Standard Air Cylinder SAI125X150 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI125 Standard Air Cylinder SAI125X150
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 SAI125 Standard Air Cylinder SAI125X150 Is Used
Heavy Material Ejection
Generates 6136N of thrust at 0.5 MPa to reliably push heavy metal castings or molded parts out of press beds.
Pallet Transfer Stops
Acts as a robust stopper block on heavy-duty conveyor lines, absorbing high kinetic energy from moving pallets.
Large Press Feeding
Positions thick steel blanks into large stamping presses where high force and rigid positioning are mandatory.
Is the Airtac SAI125 Standard Air Cylinder SAI125X150 the Right Cylinder?
Choose this 125mm bore when 100mm cylinders (providing 3927N push at 0.5 MPa) lack the necessary thrust for heavy lifting. If 6136N is excessive, stepping down optimizes air consumption. The 150mm stroke is compact enough to avoid severe rod-bearing bending, but always mount rigidly to prevent side-load wear.
As a genuine ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for competing standard cylinders. Ensure your setup utilizes PT G1/2 ports and compatible mounts like TC trunnions or FA flanges. Note that the standard double-acting design relies on continuous air pressure; if unpowered load-holding is required, explore the SAIL locking variant or an external rod lock.
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 SAI125 Standard Air Cylinder SAI125X150 FAQ
At 0.5 MPa, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
Yes, the SAI125X150 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with older ISO 6431 or VDMA 24562 units of the same bore and stroke.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAI125 Standard Air Cylinder SAI125X150
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.