Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 200mm 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
- Stroke200 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B
The SAUF40X200S-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 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. The bore sets the 1/4" cylinder port and M12x1.25 rod thread.
It delivers 628N push and 528N pull at 0.5 MPa. The integrated valve limits the working pressure to 0.15-0.8 MPa, even though the cylinder body rates to 1.0 MPa. The 4M210-08 valve flows 16 mm2 (Cv 0.89) at up to 5 cycles/s. For sizing, the safe working load is roughly 377N (about 60% of the 0.5 MPa push), and the vertical lift capacity is about 32kg with a 2:1 margin. The DC24V coil uses 3.0W, features IP65 protection, and this -S model includes a piston magnet for CMSG/DMSG/EMSG switches.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAUF40X200S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×200 | 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 SAUF40X200S-08B Is Used
Decentralized Clamping
Ideal for a machining cell where each clamping station needs independent control without running long tubing back to a central manifold.
Inline Diverters
Perfect for conveyor sorting gates that require rapid, localized actuation at up to 5 cycles per second without extra valve plumbing.
Package Stops
Suits packaging lines needing one-valve-per-actuator simplicity, saving manifold slots while providing reliable 628N push force.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X200S-08B the Right Choice?
Size by checking both neighbouring bores: the 32mm bore yields 402N push while the 50mm bore yields 982N push at 0.5 MPa. This 40mm unit provides 628N push and 528N pull at 0.5 MPa. Confirm the DC24V terminal entry and PT threads suit your control panel. The rod retracts when the coil is energised; reposition the valve to extend on signal. Always size force within the 0.15-0.8 MPa valve window, never the 1.0 MPa cylinder body limit. The valve routes air and is not a lock, so add an external rod lock or pilot-operated check valve to hold a load. For this 200mm stroke, ensure external guidance to manage 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 SAUF40X200S-08B FAQ
It delivers 628N push and 528N pull 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/s max. The DC24V coil runs at 3.0W with IP65 protection. You must size force within the 0.15-0.8 MPa valve operating window, not the 1.0 MPa cylinder body rating.
By default, the rod retracts when the coil is energised. You can reconfigure it to extend when energised simply by repositioning the built-in valve. This self-switching design means one coil signal drives the cylinder directly, removing the need for a remote valve.
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