Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 700mm 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
- Stroke700 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B
The SAUF40X700S-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One DC24V coil signal drives the actuator directly, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same bore. This 40mm bore unit has a 1/4" cylinder port, a 16mm rod, and an M12x1.25 rod thread.
The integrated valve flows 16 mm2 (Cv 0.89) at up to 5 cycles/sec. Although the cylinder body rates to 1.0 MPa, the assembled unit operates within the valve's 0.15-0.8 MPa window. At 0.5 MPa it delivers 628N push and 528N pull. The computed safe working load is roughly 377N, allowing a vertical lift of about 32kg with a 2:1 margin. The S suffix provides a piston magnet for CMSG/DMSG/EMSG sensors.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAUF40X700S-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×700 | 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 SAUF40X700S-08B Is Used
Divert Gate Actuation
Decentralized divert gates on a packaging line use this cylinder to switch lanes locally without routing air lines back to a central manifold.
Vertical Package Pusher
Ideal for pushing cartons off a roller bed, where the built-in valve responds instantly to a single DC24V signal and the 700mm stroke reaches across the lane.
Independent Clamp Station
A standalone clamping fixture on a large assembly machine benefits from the onboard 4M210 valve, saving manifold space and simplifying tubing.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X700S-08B the Right Choice?
When sizing, compare neighboring bores: a 32mm bore yields 402N push at 0.5 MPa, while a 50mm bore yields 982N. This 40mm bore provides 628N push and 528N pull at 0.5 MPa. Always size force within the valve's 0.15-0.8 MPa operating range, never the 1.0 MPa cylinder body rating. Confirm the DC24V terminal entry and PT thread meet your electrical specs. The rod retracts when the coil energizes; reposition the valve to reverse this to extend-when-energized. The 700mm stroke exceeds 300mm, so use external guides to prevent rod bending and side-load wear. The valve routes air and is not a load lock; 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 SAUF40X700S-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 has IP65 protection. The cylinder body rates to 1.0 MPa, but you must size force within the valve's 0.15-0.8 MPa operating window.
By default the rod retracts when the coil energizes, but you can reposition the valve to extend-when-energized. The valve only routes air; it is not a load lock. The piston will drift on air loss, so install an external rod lock or pilot-operated check valve for load holding.
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