Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X400-75S
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X400-75S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 400mm 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
- Stroke400 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 SAUJ80X400-75S
The AirTAC SAUJ80X400-75S 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 75 mm, yielding a usable extension window of 325 to 400 mm. The extruded aluminum profile barrel is purposefully shorter than an ISO 15552 cylinder of the same bore. This bore features a 25 mm rod, M20x1.5 rod thread, and a 3/8" port.
Delivering 2513 N push and 2268 N pull at 0.5 MPa, this unit provides a safe working load around 1508 N and a vertical lift capacity near 128 kg with a 2:1 margin. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG position switches. Adjustable air cushions of 28 mm decelerate the piston near stroke end, while the stop screw dictates end position but does not lock the load.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X400-75S Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X400-75S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAUJ80X400-75S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SAUJ80X400-75S Is Used
Variable-Length Pressing
Allows operators to dial in the exact 325 to 400 mm extend position for pressing assemblies of varying heights without changing tooling.
Adjustable Diverters
Fine-tunes the extend stroke by up to 75 mm on-site to accommodate different package sizes on a packaging line.
Tiered Pallet Stops
Sets precise stopping heights for multiple pallet tiers, using the external screw to shorten the extend reach as needed.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X400-75S the Right Cylinder?
When sizing this 80 mm bore against neighbors, a 63 mm bore yields 1559 N push at 0.5 MPa, whereas a 100 mm bore provides 3927 N. Select this 80 mm model when your application requires up to 2513 N push at 0.5 MPa and on-site stroke tuning. Choose the SAUJ over a fixed SAU cylinder plus external stop hardware when you need integrated, compact stroke adjustment. Mounting options include Basic, FA flange, and LB foot styles, with mounting compatibility matching the AirTAC SC series. The -S magnet enables electronic or reed sensing. Because the stroke is 400 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 SAUJ80X400-75S FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. Push force is 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, and 513 kgf at 1.0 MPa. The 75 mm external stop screw window allows an extend stroke range of 325 to 400 mm.
The -S suffix means a magnet is built-in for CMSG, DMSG, or EMSG switches. The cylinder does not hold load on air loss; the 28 mm cushions only decelerate, and the stop screw sets position, not a lock. Use an external rod lock or pilot-operated check valve for holding.
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