Airtac SAI50 Standard Cylinder SAI50X185S
The AirTAC SAI50 Standard Cylinder SAI50X185S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 185mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke185 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAI50 Standard Cylinder SAI50X185S
The AirTAC SAI50X185-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 185 mm stroke makes it highly suitable for mid-range linear actuation tasks. As a genuine AirTAC component, it ensures dimensional interchangeability for direct replacement of other ISO 15552 cylinders.
This specific configuration includes a standard carbon steel piston rod and PT tapered port threads. Equipped with an integrated magnet (-S), it supports direct mounting of CMSE or DMSE sensor switches along the dual grooves machined into the extruded aluminum barrel.
Airtac SAI50 Standard Cylinder SAI50X185S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X185S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50X185S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | 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 SAI50 Standard Cylinder SAI50X185S Is Used
Clamping Mechanisms
Provides reliable 982 N clamping force at 0.5 MPa for securing mid-sized workpieces during machining or welding operations.
Material Diverting
Actuates routing gates and pushers on assembly lines where a 185 mm stroke is sufficient to redirect packages.
Gate Control
Operates access doors and safety guards on automated machinery, utilizing adjustable air cushions to ensure soft closing.
Is the Airtac SAI50 Standard Cylinder SAI50X185S the Right Cylinder?
Select this 50 mm bore when an application requires stepping up from a 40 mm cylinder, which only provides 628 N at 0.5 MPa. If your system demands even greater thrust, consider moving to a 63 mm bore that yields 1559 N. Because the 185 mm stroke is under the 300 mm threshold, side-load stress on the rod bearing is minimal, though standard alignment practices still apply.
If the machinery loses air pressure, this standard SAI cylinder cannot hold its load and will drift. For applications requiring position holding without live pressure, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. This model is a direct ISO 15552 replacement match for 50 mm bore, 185 mm stroke, PT ports, and includes the -S magnet option.
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 SAI50 Standard Cylinder SAI50X185S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X185-S is dimensionally interchangeable per ISO 15552. You can use it as a direct replacement for other ISO 15552 profile cylinders with a 50 mm bore and 185 mm stroke, provided your port and mounting dimensions align.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI50 Standard Cylinder SAI50X185S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.