Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X280-10S
The AirTAC Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X280-10S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 280mm 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
- Stroke280 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 SAUJ50X280-10S
The AirTAC SAUJ50X280-10S is a double-acting, single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you trim the working stroke by up to 10 mm, giving a usable range of 270-280 mm. The nominal 280 mm length serves as the maximum travel. This unit includes a built-in piston magnet (-S) for direct CMSG, DMSG, or EMSG sensor mounting. It features a 1/4" port and an M16x1.5 rod thread.
Delivering 982 N push and 825 N pull at 0.5 MPa, this 50 mm bore profile body is notably shorter than an ISO 15552 cylinder of the same size. For sizing, the safe working load is approximately 589 N (about 60% of the 0.5 MPa push force), and it can manage a vertical lift of roughly 50 kg with a 2:1 margin. The adjustable air cushion spans 21 mm at each end to smooth out deceleration.
Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X280-10S Technical Specifications
| Model | Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X280-10S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 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 SAUJ50X280-10S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SAUJ50X280-10S Is Used
Tooling Contact Calibration
Ideal for stamping or clamping stations where the final 10 mm of extend travel must be dialed in precisely on-site to avoid crushing delicate workpieces.
Variable Depth Sealing
Perfect for packaging lines that occasionally run deeper cartons, allowing operators to shorten the extend stroke by a few millimeters to set exact flap folding pressure.
Inline Transfer Stopper
Suits conveyor diverter gates where product sizes vary slightly, letting technicians tweak the stopping position to accommodate different package widths without changing hardware.
Is the Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X280-10S the Right Cylinder?
When sizing this unit, look at the neighboring bores: a 40 mm bore yields 628 N push at 0.5 MPa, while a 63 mm bore provides 1559 N, making the 50 mm bore at 982 N an ideal middle ground. Choose the SAUJ over a fixed-stroke SAU when you need minor field adjustments to the extend end position without buying a new cylinder. The 10 mm adjust window is perfect for fine-tuning tooling contact. Mounting options include Basic, FA flange, and LB foot styles, with profile compatibility matching the AirTAC SC series. Because the -S suffix denotes a magnet, you can easily fit reed or electronic switches. For the 280 mm stroke, ensure external guide rails are used to prevent excessive side loading on the rod.
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 SAUJ50X280-10S FAQ
This 50 mm bore cylinder provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, 1767 N push at 0.9 MPa, and a theoretical max of 200 kgf at 1.0 MPa. The external stop screw allows you to shorten the extend stroke by up to 10 mm on-site, giving an effective travel range of 270-280 mm.
The -S suffix means a magnet is built into the piston for direct mounting of CMSG, DMSG, or EMSG sensors. Regarding load holding, the cylinder does not secure a load on air loss; the piston will drift and the 21 mm air cushion only decelerates near the end of travel. The external stop screw sets the end position but is not a brake. For secure load holding, use an external rod lock or pilot-operated check valve.
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