Airtac SAU Standard Air Cylinder SAU50X135
The AirTAC Airtac SAU Standard Air Cylinder SAU50X135 is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 135mm 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
- Stroke135 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SAU Standard Air Cylinder SAU50X135
The AirTAC SAU50X135 is a double-acting profile-type cylinder featuring a 50 mm bore and 135 mm stroke. It utilizes an extruded aluminum barrel with an integrated sensor groove, making it shorter and more compact than an ISO 15552 cylinder of the same bore. This space-saving design delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, operating on a 1/4 inch port with an M16x1.5 rod thread.
For practical sizing, plan for a safe working load of about 589 N, which accounts for seal friction and smooth travel at 0.5 MPa. In a vertical lift scenario with a 2:1 safety margin, this actuator lifts about 50 kg. The unit includes adjustable air cushions at both ends to decelerate the piston near stroke end. Note that this specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG magnetic switches.
Airtac SAU Standard Air Cylinder SAU50X135 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU50X135 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 135 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 SAU Standard Air Cylinder SAU50X135
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×135 | 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 SAU Standard Air Cylinder SAU50X135 Is Used
Clamping Fixtures
Secures aluminum extrusions in machining centers, utilizing the 982 N push force to hold parts firmly against a stop during milling operations.
Package Diverters
Pushes medium-weight cardboard cartons off a main conveyor belt into a sorting lane, taking advantage of the compact profile to fit tight transfer zones.
Pallet Stops
Acts as an end-of-line stop mechanism for loaded pallets, absorbing the impact via the 21 mm adjustable air cushion before the next packaging step.
Is the Airtac SAU Standard Air Cylinder SAU50X135 the Right Cylinder?
When sizing this actuator, consider the neighboring bores: stepping down to a 40 mm bore yields 628 N of push force at 0.5 MPa, while stepping up to a 63 mm bore provides 1559 N. The 50 mm bore is ideal when you need roughly 982 N of push force. Mounting is straightforward using AirTAC SC-series accessories, including LB foot brackets, FA/FB flanges, and CA/CB clevises.
Because this is a double-acting cylinder, it does not hold its position if air pressure is lost or the valve is centered; the piston will drift. The adjustable air cushion only decelerates the piston near the stroke ends and does not function as a locking brake. To maintain a suspended load, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 SAU Standard Air Cylinder SAU50X135 FAQ
The SAU50X135 delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa. At 0.7 MPa, the push force is 1374 N, and at 0.9 MPa it is 1767 N. The theoretical maximum force is 200 kgf at 1.0 MPa. It features a 50 mm bore, 135 mm stroke, 1/4 inch port, M16x1.5 rod thread, and operates at speeds between 30-800 mm/s.
This actuator is not an ISO 15552 cylinder, but it shares the exact same mounting accessories as the AirTAC SC series, such as LB foot, FA/FB flange, and CA/CB clevis brackets. Additionally, this specific SKU does not include a magnet (-S), so it cannot accept CMSG, DMSG, or EMSG magnetic switches for position sensing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAU Standard Air Cylinder SAU50X135
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.