Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 800mm 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
- Stroke800 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B
The SAUF40X800-08B 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 makes it shorter than an ISO 15552 unit of the same bore. The 1/4" valve port delivers a 16 mm2 flow (Cv 0.89) at up to 5 cycles per second.
Operating within the 0.15-0.8 MPa valve window, this 40mm bore generates 628N push and 528N pull at 0.5MPa. The computed safe working load is roughly 377N (about 60% of the 0.5MPa push), translating to a 32kg vertical lift with a 2:1 margin. The cylinder body rates to 1.0MPa but the assembled unit is capped by the valve's 0.8MPa limit. It features a 1/4" cylinder port, a 16mm rod, and terminal entry.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAUF40X800-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×800 | 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 SAUF40X800-08B Is Used
Decentralized Conveyor Divert
Mounts directly at the divert gate to push packages. The integrated 4M210-08 valve eliminates long tube runs back to a central manifold, ensuring rapid 5 cycle/sec actuation.
Machine Tool Loading
Ideal for placing parts into a CNC fixture. The built-in valve saves manifold space while the profile barrel offers a compact footprint compared to standard ISO cylinders.
Vertical Lift Gate
Raises a 32kg access gate using a 2:1 safety margin on 0.5MPa. The DC24V coil switches locally, and the 800mm stroke handles deep vertical travel.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X800-08B the Right Choice?
When sizing, compare neighbouring bores: a 32mm bore yields 402N push at 0.5MPa, while a 50mm bore provides 982N. This 40mm bore gives 628N push and 528N pull at 0.5MPa. Confirm the DC24V terminal entry and PT threads meet your control specs. The rod retracts by default when energised; repositioning the valve changes it to extend-when-energised. Always size force within the 0.15-0.8 MPa valve range, never the 1.0 MPa cylinder rating. Because this SKU lacks a magnet (-S), it cannot accept a magnetic switch. For the 800mm stroke, use external guides to prevent rod bending and side-load wear. The valve only routes air; it is not a load lock, so add an external rod lock or pilot-operated check valve to hold loads on air loss.
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 SAUF40X800-08B FAQ
It generates 628N push and 528N pull at 0.5MPa, sizing up to 1005N push at 0.8MPa. The built-in valve is a 4M210-08 (1/4" port, Cv 0.89, 16 mm2 flow) running on DC24V. Although the cylinder body rates to 1.0MPa, the assembled unit must operate within the valve's 0.15-0.8 MPa window.
No remote valve is needed; the integrated 5/2 valve switches the cylinder from one coil signal. The valve routes air but does not lock the load, so the piston drifts on air loss. For vertical holding, install an external rod lock or pilot-operated check valve. The default action retracts when energised, but repositioning the valve extends it instead.
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