
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF100X300S-08B is a genuine double-acting profile-type cylinder with a Ø100mm bore, 300mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
The SAUF100X300S-08B is a double-acting profile cylinder with a built-in AirTAC 4M310-08 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The 100mm bore delivers 3927N push and 3681N pull at 0.5MPa. It uses a Ø25mm rod, M20x1.5 thread, 1/2" cylinder port, and 29mm cushions.
The integrated valve provides 25mm2 flow (Cv 1.4) at a 1/4" port, switching up to 4 cycles/sec. The DC24V terminal coil offers IP65 protection. Size force within the valve's 0.15-0.8MPa window, not the 1.0MPa cylinder body rating. The computed safe working load is about 2356N (60% of the 0.5MPa push), allowing a 200kg vertical lift with a 2:1 margin. The S suffix adds a piston magnet for CMSG/DMSG/EMSG switches.
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF100X300S-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø100 mm |
| Stroke | 300 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/2" |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 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.
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 100×300 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| 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.
Decentralized clamping on a large press line. The built-in valve provides rapid 4 cycles/sec actuation right at the tool, eliminating long tubing runs from a central manifold.
Diverting heavy pallets on a conveyor. The 100mm bore provides 2356N safe working load, while the one-signal design simplifies wiring across a wide physical footprint.
Lifting material handling gates. The unit safely raises 200kg loads with a 2:1 margin, and the piston magnet supports CMSG/DMSG/EMSG switches for end-position confirmation.
For sizing, the 100mm bore yields 3927N push at 0.5MPa; dropping to an 80mm bore gives 2513N, while upsizing is impossible as 100mm is the maximum. Always confirm the DC24V terminal coil and 1/4" valve port. The cylinder body rates to 1.0MPa, but the assembled unit must operate at 0.15-0.8MPa. The rod retracts when energised by default, but repositioning the valve changes it to extend-when-energised. The valve routes air and is not a lock; add an external rod lock or pilot-operated check valve to hold loads. For the 300mm stroke, use external guides to prevent rod bending and side-load wear.
Quick checklist
It delivers 3927N push and 3681N pull at 0.5MPa, reaching 6282N push at 0.8MPa. The built-in 4M310-08 valve has a 1/4" port, Cv 1.4, and runs a DC24V coil. Although the cylinder body rates to 1.0MPa, the assembled unit must operate within the valve's 0.15-0.8MPa window.
By default, the rod retracts when the coil receives a signal. You can reconfigure it to extend-when-energised simply by repositioning the built-in valve. This self-switching design removes the need for a remote valve, saving a manifold slot and tubing.
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