Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A is a genuine double-acting profile-type cylinder with a Ø80mm bore, 400mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ80 mm
- Stroke400 mm
- Built-in valve4M310-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A
The SAUF80X400-08A is a double-acting profile cylinder with a built-in AirTAC 4M310 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same bore. This 80mm bore unit has a 3/8" cylinder port, a 1/4" valve port, and a 400mm stroke.
Operating within the valve's 0.15-0.8 MPa window, it delivers 2513 N push force at 0.5 MPa. The 4M310-08 valve provides 25 mm2 flow (Cv 1.4) and handles up to 4 cycles per second. Based on the 0.5 MPa push force, the computed safe working load is about 1508 N, and the vertical lift capacity with a 2:1 margin is roughly 128 kg. This terminal-entry AC220V SKU has no magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø80 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 3/8" |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 cycle/sec |
| Coil voltage | AC220V · AC 3.5 VA |
| Electrical entry | Terminal · IP65 · B class |
| Response time | 0.05 s and below |
| Operating pressure | 0.15 – 0.8 MPa (valve limit) |
| Speed range | 30 – 800 mm/s |
The cylinder rates to 1.0 MPa but the built-in valve operates 0.15–0.8 MPa, so run the assembled SAUF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAUF datasheet. Port options: PT / G.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
Sized within the valve's 0.15–0.8 MPa range. Actual usable force is lower than theoretical due to friction and back-pressure.
Model Code: Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 80×400 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| A | Coil voltage AC220V. |
| I / (blank) | Terminal electrical entry. |
SAUF does not hold its load without air — the valve routes air, it is not a lock. For a held load, add an external rod lock or a pilot-operated check valve.
Where the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A Is Used
Package Divert Gate
Drives a heavy divert arm on a sorting line. The integrated valve removes long tube runs back to a central manifold, improving cycle response.
Pallet Stopper Assembly
Acts as a robust stop for incoming pallets. One coil signal extends the 400mm stroke to block traffic, simplifying machine wiring.
Press Ejection System
Ejects finished parts from a press bed. The built-in 4M310 valve handles the high flow needed for rapid ejection without extra plumbing.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A the Right Choice?
When sizing, compare neighboring bores: the 63mm bore yields 1559 N push at 0.5 MPa, while the 100mm bore yields 3927 N. This 80mm bore provides 2513 N push at 0.5 MPa and 4021 N at the 0.8 MPa assembled maximum. Always size force within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. Confirm the AC220V terminal entry meets your electrical specs. The rod retracts when the coil is energized, but you can reconfigure it to extend-when-energized by repositioning the valve. Because this is a 400mm stroke, use an external guide to prevent rod bending and side-load wear. The valve only routes air; it is not a load lock, so add an external rod lock or pilot-operated check valve to hold loads safely.
Quick checklist
- ✓ Force at 0.15–0.8 MPa
- ✓ Coil voltage matches panel
- ✓ Terminal vs grommet entry
- ✓ Retract- or extend-when-energised
- ✓ Load-holding → external rod lock
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF80X400-08A FAQ
It generates 2513 N push and 2268 N pull at 0.5 MPa, reaching 4021 N push at 0.8 MPa. The built-in valve is a 4M310-08 (1/4" port, Cv 1.4, 25 mm2 flow) with a max frequency of 4 cycles/sec. The coil is AC220V with terminal entry. You must size the force within the valve's 0.15-0.8 MPa operating window, not the 1.0 MPa cylinder body rating.
No, the built-in valve only routes air and is not a load lock. If air is lost, the piston will drift. To hold a vertical load securely, you must install an external rod lock or a pilot-operated check valve. Also, note this SKU lacks a magnet (-S) and cannot accept magnetic switches.
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