Airtac SAI80 Standard Air Cylinder SAI80BX185
The AirTAC SAI80 Standard Air Cylinder SAI80BX185 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm 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.
- BoreØ80 mm
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- 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 SAI80 Standard Air Cylinder SAI80BX185
The AirTAC SAI80X185 is a double-acting ISO 15552 profile cylinder engineered to deliver a robust 2513 N of push force at 0.5 MPa. Its 185 mm stroke provides the extended travel needed for mid-sized positioning tasks, clamping fixtures, and automated assembly lines. As a genuine AirTAC component, it ensures reliable, repeatable motion in demanding pneumatic setups.
This specific configuration is built with a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. Fluid connections use a PT tapered thread on the G3/8 port. Because this variant does not include a magnet, position sensing requires external switches rather than the integrated barrel grooves.
Airtac SAI80 Standard Air Cylinder SAI80BX185 Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80BX185 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI80 Standard Air Cylinder SAI80BX185
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SAI80 Standard Air Cylinder SAI80BX185 Is Used
Heavy-Duty Clamping
Secures large metal or composite workpieces during CNC machining and heavy milling operations using its 2513 N push force.
Pallet Diversion
Extends 185 mm to push heavy product pallets off a main conveyor line into secondary packaging or inspection stations.
Press Ejection
Cycles rapidly at up to 800 mm/s to eject formed parts from hydraulic presses, minimizing machine idle time.
Is the Airtac SAI80 Standard Air Cylinder SAI80BX185 the Right Cylinder?
Selecting this 80 mm bore cylinder makes sense when your application requires substantially more thrust than a 63 mm bore can provide (1559 N at 0.5 MPa), but you want to avoid the larger footprint and air consumption of a 100 mm bore (3927 N at 0.5 MPa). The 185 mm stroke offers ample extension without the structural side-load challenges of extremely long rods.
For installations that must maintain position or hold a vertical load in the event of air pressure loss, a standard SAI cylinder will drift; you should specify the SAIL locking variant or an external pilot-operated check valve. To replace an existing actuator, match the 80 mm bore, 185 mm stroke, G3/8 PT port, and your required mounting accessory (such as an FA flange or TC trunnion).
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 SAI80 Standard Air Cylinder SAI80BX185 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 3518 N.
Yes, the SAI80X185 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement by matching the 80 mm bore, 185 mm stroke, G3/8 port, and mounting interface, provided you use the appropriate mounting accessories.
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