Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B is a genuine double-acting profile-type cylinder with a Ø50mm bore, 300mm 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.
- BoreØ50 mm
- Stroke300 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B
The SAUF50X300-08B 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 is shorter than an ISO 15552 cylinder of the same bore. This 50mm bore uses a 1/4" cylinder port and a Ø20mm rod with an M16x1.5 thread.
Operating in the 0.15-0.8 MPa valve window, it delivers 982N push and 825N pull at 0.5 MPa. The integrated valve flows 16mm2 (Cv 0.89) at up to 5 cycles/sec. The DC24V terminal coil is IP65 rated. For sizing, the safe working load is roughly 589N, and vertical lift capacity is about 50kg with a 2:1 margin. This SKU lacks the S suffix for a magnet, so it cannot accept a magnetic switch.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 300 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 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 SAUF50X300-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 50×300 | 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 SAUF50X300-08B Is Used
Inline Diverter Gate
Decentralized sorting on a conveyor where the built-in valve switches the 300mm stroke directly at the divert point without long tubing runs back to a central manifold.
Vertical Package Stopper
Independent actuation for a packaging line stopper. The self-contained DC24V valve simplifies electrical wiring across large machinery layouts.
Machine Tool Guard Door
Opening a safety guard on a CNC cell. The integrated 4M210 valve saves manifold space and allows local cycle control at up to 5 cycles per second.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF50X300-08B the Right Choice?
Size by comparing neighbor bores: the 40mm bore yields 628N push at 0.5 MPa, while the 63mm bore yields 1559N. This 50mm bore provides 982N push and 825N pull at 0.5 MPa. Confirm the DC24V terminal entry and PT threads suit your control panel. The default action retracts the rod when energized, but repositioning the valve switches it to extend-when-energized. Always size force within the 0.15-0.8 MPa valve range, not the 1.0 MPa cylinder body rating. The valve routes air and is not a lock; for load holding on air loss, add an external rod lock or pilot-operated check valve. Because the 300mm stroke exceeds 300mm, use an external guide to prevent rod bending and side-load 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 SAUF50X300-08B FAQ
It pushes 982N and pulls 825N at 0.5 MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 5 cycles/sec max) driven by a DC24V terminal coil. Although the cylinder body rates to 1.0 MPa, you must size force within the valve's 0.15-0.8 MPa operating window.
No, this specific SKU lacks the S suffix for a magnet, so it cannot accept a magnetic switch. By default, the rod retracts when the coil is energized. You can reconfigure it to extend-when-energized simply by repositioning the built-in valve.
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