Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X550-50S
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X550-50S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 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 SAUJ80X550-50S
The SAUJ80X550-50S is a double-acting single-rod profile cylinder with a 550 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable range of 500-550 mm. It features a 3/8 inch port, an M20x1.5 rod thread, and 28 mm adjustable air cushions. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This 80 mm bore generates 2513 N push and 2268 N pull at 0.5 MPa, reaching 4523 N at 0.9 MPa. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors. Based on the 0.5 MPa push rating, the safe working load is roughly 1508 N, translating to a vertical lift capacity of about 128 kg with a 2:1 margin. The stop screw sets the end position but does not lock the load; use an external rod lock for holding.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X550-50S Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X550-50S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAUJ80X550-50S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAUJ80X550-50S Is Used
Variable-Length Forming Press
Adjusts the extend stroke on-site by up to 50 mm to accommodate different material thicknesses in a metal forming line without swapping cylinders.
Adjustable Transfer Diverter
Tunes the pusher extension precisely to divert varying package sizes on a conveyor, using the stop screw to set the exact end position.
Multi-Height Pallet Stopper
Trims the stroke down from 550 mm to handle different pallet heights, relying on the 80 mm bore's 2513 N push force at 0.5 MPa for firm stopping.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X550-50S the Right Cylinder?
Size both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. This 80 mm model provides 2513 N at 0.5 MPa, making it ideal for medium-heavy tasks. Choose the 50 mm adjust window when your machinery requires precise end-position tuning without machining custom stops. Select the -S magnet option if you need CMSG, DMSG, or EMSG electronic position sensing. Basic, FA flange, and LB foot mountings are available, sharing compatibility with the AirTAC SC series. Because the stroke is 550 mm, add external guides to prevent rod bending and manage side loads.
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 SAUJ80X550-50S FAQ
This 80 mm bore cylinder delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N at 0.7 MPa, and 4523 N at 0.9 MPa. The theoretical maximum is 513 kgf at 1.0 MPa. The external stop screw allows you to shorten the 550 mm extend stroke by up to 50 mm on-site, giving a usable range of 500-550 mm.
The -S suffix means a piston magnet is installed, allowing CMSG, DMSG, or EMSG reed and electronic sensors to detect position. The cylinder does not hold the load on air loss; the cushion only decelerates near the end, and the stop screw sets position without locking. For secure load holding, install an external rod lock or pilot-operated check valve.
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