Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 175mm 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
- Stroke175 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B
The AirTAC SAUF40X175-08B 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 1/4" cylinder port, an M12x1.25 rod thread, and 21mm adjustable cushions.
Operating within the 0.15-0.8 MPa valve window, it delivers 628N push and 528N pull at 0.5 MPa. The integrated valve flows 16 mm2 (Cv 0.89) at up to 5 cycles/sec. The DC24V terminal coil is IP65 rated. Based on the 0.5 MPa push force, the safe working load is roughly 377N, allowing a vertical lift of about 32kg with a 2:1 margin. This SKU lacks the S suffix, so it cannot take a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 175 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 SAUF40X175-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×175 | 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 SAUF40X175-08B Is Used
Sorting Diverter
Decentralized package sorting where one signal fires the diverter directly without routing back to a main manifold.
Clamp Station
Independent machining clamps that each switch themselves, drastically reducing tubing clutter on large fixtures.
Gate Actuator
Parts rejection gates on an assembly line using the self-contained 4M210 valve for fast, local 5 cycles/sec actuation.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X175-08B the Right Choice?
Size by checking both neighboring bores: the 32mm bore yields 402N push at 0.5 MPa, while the 50mm bore yields 982N. This 40mm bore provides 628N push, making it the right middle ground. Confirm the DC24V terminal coil and PT thread suit your control system. The default action retracts the rod when energized, but you can reposition the valve to extend on signal. Size force strictly within the 0.15-0.8 MPa valve range, not 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 a load. For this 175mm stroke, ensure side-load guidance to prevent premature wear.
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 SAUF40X175-08B FAQ
It pushes 628N and pulls 528N at 0.5 MPa. The built-in valve is a 4M210-08 (5/2 solenoid) with 1/4" port, Cv 0.89, and 5 cycles/sec max. The DC24V coil runs the assembled unit within a 0.15-0.8 MPa pressure window. The cylinder port is 1/4".
Yes. The default factory setting retracts the rod upon energizing, but you can reposition the integrated valve to make the rod extend instead. This self-contained switching means no remote valve is needed, though the valve only routes air and will not lock the load on pressure loss.
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