Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S
The AirTAC Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 275mm stroke, 1/4" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ50 mm
- Stroke275 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S
The AirTAC SAUJ50X275-50S is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 275 mm nominal stroke by up to 50 mm, yielding a usable extend range of 225-275 mm. This prevents buying a new cylinder for minor position changes. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore. It features a 1/4" port, M16x1.5 rod thread, and a built-in magnet for position sensing.
In the 50 mm bore class, this cylinder delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, reaching 1767 N push at 0.9 MPa. A practical computed insight: the safe working load is approximately 589 N (about 60% of the 0.5 MPa push figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. The adjustable air cushions decelerate the piston near stroke end, but the stop screw only sets the end position—it is not a load lock. For load holding without live air, use an external rod lock or pilot-operated check valve.
Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S Technical Specifications
| Model | Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S Is Used
Variable Depth Drilling Jig
Accommodates multiple part heights on a single fixture by dialing in the extend stroke up to 50 mm shorter than the 275 mm maximum.
Adjustable Carton Flap Folder
Tunes the extend endpoint on-site for different box sizes without swapping out the entire pneumatic actuator assembly.
Variable Position Diverter
Allows maintenance teams to shift the diverting contact point by up to 50 mm to align with changing conveyor lane widths.
Is the Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S the Right Cylinder?
When sizing this 50 mm bore model, consider the neighboring bores: step down to a 40 mm bore for lighter loads (628 N push @0.5 MPa) or step up to a 63 mm bore for heavier tasks (1559 N push @0.5 MPa). Choose the SAUJ over a fixed-stroke SAU when your machine setup requires field tuning of the extend position within the 50 mm window. Mounting options include Basic, FA flange, and LB foot styles, with mounting compatibility matching the AirTAC SC series. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Because the 275 mm stroke exceeds 300 mm? No, but for any stroke approaching 300 mm, ensure adequate side-load guidance to prevent premature seal wear.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/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 — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. Push force increases to 1374 N at 0.7 MPa and 1767 N at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. The nominal stroke is 275 mm, and the external stop screw allows you to shorten the extend stroke by up to 50 mm on-site, giving a usable extend range of 225-275 mm.
The -S suffix means the cylinder has a built-in piston magnet for direct mounting of CMSG, DMSG, or EMSG reed or electronic sensors. Regarding load holding: the cylinder does not hold a load on air loss, and the adjustable stop screw only sets the end position—it is not a brake. You must use an external rod lock or pilot-operated check valve to hold a load securely.
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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X275-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.