Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 300mm stroke, 3/8" 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.
- BoreØ80 mm
- Stroke300 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 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 SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S
The AirTAC SAUJ80X300-50S is a double-acting, single-rod profile cylinder with an on-site extend-stroke adjustment window of 50 mm. You trim the working stroke from its 300 mm maximum down to 250 mm via an external stop screw, eliminating the need to buy a new cylinder for minor position changes. It features a hard-anodized extruded aluminum barrel, making it shorter than an ISO 15552 cylinder of the same bore. The 3/8" port and M20x1.5 rod thread handle robust pneumatic flows.
This 80 mm bore generates 2513 N push and 2268 N pull at 0.5 MPa, scaling to 4523 N push at 0.9 MPa. A safe working load is roughly 1508 N, and it can vertically lift about 128 kg with a 2:1 safety margin. The -S suffix denotes a built-in piston magnet for CMSG, DMSG, or EMSG switches. Adjustable 28 mm air cushions decelerate the piston near stroke end, but the stop screw sets end position rather than locking the load.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S Is Used
Press Fit Tuning
Allows operators to dial in the exact 250-300 mm extend position for pressing bearings without swapping hardware.
Diverter Gate Adjustment
Fine-tunes the extend stroke on-site by up to 50 mm to accommodate different package sizes on the line.
Pallet Stop Positioning
Sets a precise mechanical stop for varying pallet depths, using the external screw to trim the extend endpoint.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S the Right Cylinder?
Size this 80 mm bore against the neighboring 63 mm and 100 mm options. At 0.5 MPa, the 63 mm yields 1559 N push, while the 100 mm reaches 3927 N; this model provides 2513 N push and 2268 N pull. Choose the SAUJ over a fixed SAU when your machine assembly requires field-tuning of the extend endpoint within the 50 mm window. Mounting options include Basic, FA flange, and LB foot, compatible with the AirTAC SC series. The -S magnet supports CMSG/DMSG/EMSG sensors. Because the stroke is 300 mm, add external guides to prevent rod bending under side loads. For dead-load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate.
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 SAUJ80 Adjustable Stroke Cylinder SAUJ80X300-50S FAQ
This 80 mm bore cylinder pushes 2513 N and pulls 2268 N at 0.5 MPa, pushing 3518 N at 0.7 MPa and 4523 N at 0.9 MPa. The theoretical max is 513 kgf at 1.0 MPa. The 50 mm external stop screw window lets you shorten the 300 mm extend stroke down to 250 mm on-site. It uses a 3/8" port and 28 mm adjustable air cushions.
The -S suffix means a piston magnet is built-in for direct mounting of CMSG, DMSG, or EMSG electronic or reed switches. The external stop screw and air cushions only set the end position and decelerate the piston; they do not lock the load. If pneumatic pressure drops, the cylinder drifts, so use an external rod lock or pilot-operated check valve for secure load holding.
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