Airtac SAI125 Standard Air Cylinder SAI125X220
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X220 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X220
The AirTAC SAI125X220 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a push force of 6136 N at 0.5 MPa, this 125mm bore unit handles substantial loads with a 220mm stroke. The extruded aluminum barrel design omits tie rods, providing a rigid yet streamlined structure. This specific configuration features a standard carbon steel piston rod and PT (tapered) port threads, built for robust industrial environments.
Because this model is specified without a magnet (-S), it does not carry internal sensor tracks for direct reed switch mounting. For applications requiring end-of-stroke detection, external limit switches or upgrading to an -S variant are necessary. The standard TPU seals offer excellent wear resistance, while the adjustable air cushions at both ends ensure smooth deceleration of large moving masses.
Airtac SAI125 Standard Air Cylinder SAI125X220 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X220 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 220 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 SAI125X220
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×220 | 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 SAI125X220 Is Used
Heavy Stamping
Provides the 6136 N force at 0.5 MPa needed to actuate large mechanical presses and form rigid metal components.
Automotive Assembly
Ideal for positioning heavy chassis frames or drivetrain modules on the assembly line with a 220mm stroke.
Pallet Diversion
Generates sufficient thrust to deflect fully loaded heavy-duty pallets onto secondary conveyor tracks.
Is the Airtac SAI125 Standard Air Cylinder SAI125X220 the Right Cylinder?
Selecting this 125mm bore is appropriate when 100mm bore cylinders (offering 3927 N at 0.5 MPa) lack the thrust for your heaviest pushing tasks, but a 160mm bore is physically oversized. Operating at 0.7 MPa yields 8590 N of thrust, providing a substantial safety margin for high-inertia loads. Its 220mm stroke keeps the unsupported rod length moderate, meaning standard rod-bearing bending is minimal and an external guide is generally unnecessary unless heavy eccentric loads are applied directly to the rod.
This model serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 profile cylinders. When ordering, verify the 220mm stroke, G1/2 port size, and your preferred mounting accessory (such as LB foot or TC trunnion). Remember that a standard double-acting cylinder relies on continuous air pressure to maintain its position; if the air supply is lost, the load will drift. For dead-end holding without pressure, consider the SAIL variant with an air-released 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 SAI125X220 FAQ
At an operating pressure of 0.5 MPa, the SAI125X220 delivers a push force of 6136 N and a pull force of 5734 N. If the pressure is increased to 0.7 MPa, the push force reaches 8590 N.
Yes, the SAI125X220 is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are standardized for direct interchangeability with other ISO 15552 profile cylinders of the same bore 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 SAI125X220
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.