Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A is a genuine double-acting profile-type cylinder with a Ø40mm bore, 50mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke50 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A
The AirTAC SAUF40X50-08A is a double-acting profile cylinder with a built-in 4M210-08 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 makes it shorter than an ISO 15552 unit of the same bore. It features a 16mm rod, M12x1.25 rod thread, and a 1/4" cylinder port.
Operating strictly within the valve's 0.15-0.8 MPa window, it delivers 628N push and 528N pull at 0.5 MPa. The 1/4" valve port yields a 16 mm2 flow (Cv 0.89) with a 5 cycle/s limit. For sizing, expect a safe working load around 377N and a vertical lift capacity of roughly 32kg with a 2:1 margin. This terminal-entry AC220V SKU lacks a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| Max frequency | 5 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 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 SAUF40X50-08A
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×50 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| 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 SAUF40X50-08A Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station uses one coil signal to actuate independently, saving manifold space and tubing runs.
Inline Divert Gate
Perfect for a conveyor diverter needing a compact 50mm stroke; the integrated valve routes air directly at the actuator for fast 5 cycle/s response.
Component Pusher
Suits an assembly line push-off station, using the 628N push force at 0.5 MPa to move parts without routing long air lines back to a central control.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A the Right Choice?
Size by checking both neighboring bores: the 32mm bore yields 402N push at 0.5 MPa, while the 63mm bore provides 1559N, compared to this 40mm bore's 628N. Verify your coil is AC220V with terminal entry. The default action retracts the rod when energized, but you can reposition the valve to extend on energization. Always size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder body rating. Because the valve only routes air, add an external rod lock or pilot-operated check valve to hold loads safely. Since the 50mm stroke is below 300mm, side-load guides are less critical but still good practice.
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 SAUF40X50-08A FAQ
It delivers 628N push and 528N pull at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/s max) running on AC220V 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.
By default, the rod retracts when the coil is energized, but you can reposition the valve to extend on energization. The valve only routes air; it is not a load lock. The piston will drift on air loss, so use an external rod lock or pilot-operated check valve for load holding.
Request a Quote for Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X50-08A
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.