Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X210-40
The AirTAC Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X210-40 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 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 SAUJ80X210-40
The AirTAC SAUJ80X210-40 is a double-acting single-rod profile cylinder built for on-site stroke adjustment. An external stop screw lets you trim the extend stroke by up to 40 mm, giving a usable working range of 170-210 mm. The 210 mm nominal stroke serves as the absolute maximum. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions at both ends.
This extruded aluminum profile barrel is notably shorter than an ISO 15552 cylinder of the same 80 mm bore. At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force, peaking at a theoretical 513 kgf at 1.0 MPa. For sizing, a safe working load is roughly 1508 N (about 60% of the 0.5 MPa push figure), translating to a vertical lift capacity of approximately 128 kg with a 2:1 safety margin.
Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X210-40 Technical Specifications
| Model | Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X210-40 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAUJ80X210-40
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAUJ80X210-40 Is Used
Press Fit Tuning
Allows operators to dial in the exact 170-210 mm extend position for seating bearings without swapping out the entire actuator.
Variable Diverter Gate
Perfect for adjusting a package routing flap position on-site to accommodate different box sizes on the fly.
Carton Sealing Stroke
Fine-tunes the 80 mm bore extend end point to ensure consistent folding pressure across varying cardboard thicknesses.
Is the Airtac SAUJ80 Adjustable Stroke Cylinder SAUJ80X210-40 the Right Cylinder?
When sizing this unit, consider the neighboring bores: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. The 80 mm bore hits 2513 N, making it the sweet spot for mid-range loads. Choose the SAUJ over a fixed SAU cylinder when your machine assembly requires minor extend-position tweaks without buying new hardware. The 40 mm adjust window is ideal for final mechanical timing. Mounting options include Basic, FA flange, and LB foot styles, compatible with the AirTAC SC series. Since this SKU lacks the -S magnet, it cannot accept CMSG or DMSG sensors. For strokes at or above 300 mm, always use external guides to prevent side-load damage.
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 SAUJ80X210-40 FAQ
At 0.5 MPa the push force is 2513 N and pull is 2268 N. Push force climbs to 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa. The external stop screw allows you to shorten the extend stroke by up to 40 mm on-site, providing a usable range of 170-210 mm.
No. A plain SAUJ cylinder does not hold the load without live air; the piston will drift if pressure drops or the valve is centered. The 28 mm adjustable cushion only decelerates the piston near the end of stroke and the stop screw only sets the end position—neither acts as a load lock. For secure load holding, you must install an external rod lock or a pilot-operated check valve.
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