Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 500mm 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
- Stroke500 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B
The SAUF40X500-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One coil signal drives the cylinder, eliminating remote valves and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. This SKU uses terminal entry and has no magnet, so it cannot take a magnetic switch.
It delivers 628 N push and 528 N pull at 0.5 MPa. The 1/4" valve port gives 16 mm2 flow (Cv 0.89) and 5 cycles/s. The cylinder body rates to 1.0 MPa, but size force within the valve's 0.15-0.8 MPa window. A computed buyer insight: safe working load is about 377 N (60% of the 0.5 MPa push), allowing a 32 kg vertical lift with a 2:1 margin.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 500 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 | DC24V · DC 3.0 W |
| 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 SAUF40X500-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×500 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| B | Coil voltage DC24V. |
| 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 SAUF40X500-08B Is Used
Decentralized Conveyor Divert
Mounts directly at the divert station on a conveyor line. The integrated DC24V valve switches the 500 mm stroke locally, eliminating long tubing runs back to a central manifold.
Remote Pallet Stopper
Acts as a pneumatic stop in a large warehouse layout. One coil signal drives the 40 mm bore, saving manifold space while providing 628 N push at 0.5 MPa to halt pallets.
Machine Guard Gate
Drives a 500 mm safety gate on a machine cell. The built-in 4M210 valve with IP65 coil ensures local switching without extra plumbing, keeping the installation compact.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X500-08B the Right Choice?
Size both ways: the 32 mm bore offers 402 N push at 0.5 MPa, while the 50 mm bore gives 982 N. This 40 mm bore provides 628 N push and 528 N pull. Confirm the DC24V coil, terminal entry, and 1/4" valve port. The cylinder port is 1/4" with an M12x1.25 rod thread. Default action retracts the rod when energised; reposition the valve to extend on energisation. The 4M210 valve limits operation to 0.15-0.8 MPa despite the 1.0 MPa cylinder rating. The valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold loads. For the 500 mm stroke, use external guides to prevent rod bending and side loads.
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 SAUF40X500-08B FAQ
It delivers 628 N push and 528 N pull at 0.5 MPa, powered by a built-in 4M210-08 valve (1/4" port, Cv 0.89, 5 cycles/s) on a DC24V terminal coil. The cylinder body rates to 1.0 MPa, but the assembled unit must operate within the valve's 0.15-0.8 MPa window.
No remote valve is needed; the integrated 5/2 valve switches the cylinder directly. However, the valve only routes air and is not a load lock. The rod drifts on air loss, so add an external rod lock or pilot-operated check valve for load holding.
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