Airtac SAI50 Standard Cylinder SAI50BX185
The AirTAC SAI50 Standard Cylinder SAI50BX185 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 SAI50BX185
The AirTAC SAI50X185 is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 185 mm stroke is ideal for mid-range linear actuation tasks requiring reliable positioning. Built with a tie-rod-less extruded aluminum barrel, it offers a standardized mounting interface that drops directly into existing ISO 15552 setups.
This specific configuration features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in humid or chemically exposed environments. It utilizes PT tapered port threads and lacks a standard magnet, though the barrel includes dual-sided sensor grooves should you later need to add CMSE or DMSE switches.
Airtac SAI50 Standard Cylinder SAI50BX185 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX185 |
|---|---|
| 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 SAI50BX185
| 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 SAI50BX185 Is Used
Machine Tool Clamping
Provides 982 N of clamping force at 0.5 MPa, ideal for securing mid-weight workpieces during milling or drilling operations.
Package Diverting
The 185 mm stroke offers precise movement for diverting medium-sized cartons on automated packaging and sorting lines.
Material Handling Gates
Actuates safety gates and heavy access doors on production floors, utilizing its SUS304 rod to withstand industrial moisture.
Is the Airtac SAI50 Standard Cylinder SAI50BX185 the Right Cylinder?
When sizing this actuator, note that stepping down to a 40 mm bore reduces the push force at 0.5 MPa to 628 N, while moving up to a 63 mm bore increases it to 1559 N. The 185 mm stroke falls below the 300 mm threshold, so standard side-load risks are minimal, but always ensure the load is axially aligned to prevent premature rod-bearing wear.
As a standard double-acting cylinder, the SAI50X185 relies on live air pressure to hold its position; it will drift if supply is lost. For applications requiring true load holding upon exhaust, consider the SAIL variant with an air-released lock. To replace this unit in an ISO 15552 fixture, match the 50 mm bore, 185 mm stroke, PT G1/4 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 SAI50 Standard Cylinder SAI50BX185 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X185 is dimensionally interchangeable per ISO 15552. It can serve as a direct replacement for other ISO 15552 profile cylinders, provided you match the 50 mm bore, 185 mm stroke, and G1/4 port.
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 SAI50BX185
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.