Airtac SAI50 Standard Cylinder SAI50X280S
The AirTAC SAI50 Standard Cylinder SAI50X280S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 280mm 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
- Stroke280 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 SAI50X280S
The AirTAC SAI50X280-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its extruded aluminum barrel eliminates tie-rods, providing a rigid yet lightweight frame that drops directly into standardized ISO 15552 mounting interfaces. The 280 mm stroke is optimal for mid-range linear actuation tasks requiring reliable positioning.
This specific configuration includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The barrel features sensor grooves on both sides, allowing seamless integration of CMSE or DMSE reed switches without requiring additional brackets. Fluid must be filtered air at 40 um, operating safely between 0.15 and 1.0 MPa.
Airtac SAI50 Standard Cylinder SAI50X280S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X280S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 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 SAI50X280S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SAI50X280S Is Used
Package Diverting
Provides the 982 N push force needed to divert medium-weight packages on sorting conveyors over a 280 mm stroke.
Clamping Fixtures
Holds aluminum or composite workpieces securely in machining fixtures where a 50 mm bore delivers optimal clamping pressure.
Pallet Positioning
Stops and positions empty pallets on roller conveyors, utilizing the adjustable air cushions to prevent end-of-stroke impact damage.
Is the Airtac SAI50 Standard Cylinder SAI50X280S the Right Cylinder?
Select this 50 mm bore when an application demands more power than a 40 mm bore (628 N at 0.5 MPa) but lacks the physical space for a 63 mm cylinder (1559 N at 0.5 MPa). Because the 280 mm stroke exceeds 300 mm thresholds, designers must account for side-load risks. An unsupported rod of this length can bend under lateral stress, so utilizing an external guide rail or a dedicated guided cylinder is strongly recommended to prevent premature rod-bearing wear.
To match this exact footprint for a replacement, verify the 50 mm bore, 280 mm stroke, G1/4 PT tapered port, and your required mounting accessory (such as LB foot or TC trunnion). Note that a standard SAI relies on live air pressure to move; it will drift if air is lost. For loads requiring mechanical holding without pressure, consider the SAIL variant or an external rod 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 SAI50 Standard Cylinder SAI50X280S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X280-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders by matching the 50 mm bore, 280 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 SAI50X280S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.