Airtac SAI125 Standard Air Cylinder SAI125AX190S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX190S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 190mm 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
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX190S
The AirTAC SAI125X190-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a substantial push force of 6136 N at 0.5 MPa, extending 190 mm to drive large mechanisms. The extruded aluminum barrel lacks tie rods, presenting a clean exterior that matches standardized ISO 15552 mounting dimensions for seamless interchangeability.
This specific configuration includes a -S magnet for direct mounting of CMSE or DMSE sensor switches along the dual side grooves. The piston rod is constructed from SUS420J2 stainless steel (material code A), offering excellent corrosion resistance for humid or mildly chemically exposed environments. Fluid porting utilizes PT tapered threads, and adjustable air cushions at both ends absorb impact energy at stroke completion.
Airtac SAI125 Standard Air Cylinder SAI125AX190S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX190S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 190 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 SAI125AX190S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×190 | 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 SAI125AX190S Is Used
Heavy Stamping Press
Drives heavy-duty stamping and forming dies requiring 6136 N of push force at 0.5 MPa to deform thick metal sheets.
Automotive Assembly Jig
Actuates large clamping fixtures on automotive production lines, utilizing the SUS420J2 stainless rod to resist coolant mists.
Pallet Lift Gate
Raises and lowers loaded pallet transfer gates, using the 190 mm stroke to clear heavy goods handling paths efficiently.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX190S the Right Cylinder?
Selecting this 125 mm bore is ideal when a 100 mm bore (providing 3927 N at 0.5 MPa) lacks the necessary thrust, but a 160 mm bore (10053 N at 0.5 MPa) would be excessive. The 190 mm stroke offers a moderate extension length that stays well under the 1500 mm maximum standard stroke limit, meaning no side-load guide rail is strictly required for typical vertical loads.
Because it is a double-acting pneumatic cylinder, the SAI125X190-S relies on continuous air pressure to hold its position. If your machinery loses air pressure, the piston will drift and drop. For fail-safe load holding, integrate an external pilot-operated check valve or transition to the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant. To replace an existing unit, verify the 125 mm bore, 190 mm stroke, PT G1/2 port, and mounting accessory type.
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 SAI125AX190S FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. If pressure is increased to 0.7 MPa, the push force reaches 8590 N.
Yes, the SAI125X190-S is a genuine ISO 15552 profile cylinder. Its standardized mounting interface and dimensions make it interchangeable with other ISO 15552 cylinders, provided you match the 125 mm bore, 190 mm stroke, and G1/2 port size.
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 SAI125AX190S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.