Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 350mm 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
- Stroke350 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B
The AirTAC SAIF50X350-08B is a double-acting ISO 15552 profile cylinder with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by a DC24V terminal coil drawing 3.0 W, it eliminates the need for a separate remote valve. The integrated manifold connects to the cylinder via PU tubing, meaning the valve port (1/4") differs from the cylinder port (1/4"). Although the cylinder body rates to 1.0 MPa, the practical operating range is 0.15-0.8 MPa due to the valve limits. At 0.5 MPa, it generates 982N of push force.
By default, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised. This self-switching design requires only one coil signal, saving panel space and tubing for decentralized machine stations. It features variable air cushions at both ends and a 350mm stroke, operating smoothly at 30-800 mm/s.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 350 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| 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 SAIF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAIF 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 SAIF Series Standard Cylinder with Valve SAIF50X350-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×350 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| B | Coil voltage DC24V. |
| I / (blank) | Terminal electrical entry. |
SAIF does not hold its load without air — the valve routes air, it is not a lock. For load-holding use a SAIL (lock) or BSAI (clamp-lock).
Where the Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B Is Used
Decentralized Assembly Lines
Ideal for large machines where running valve tubing is costly; the built-in 4M210 valve lets this 50mm cylinder switch itself from one DC24V signal.
Space-Tight Machinery
Saves panel space by integrating the solenoid directly on the profile body, providing 982N push force without a remote valve bank.
Retrofit Automation
Drops into existing ISO 15552 mounts; the terminal entry and 1/4" PT ports make wiring and plumbing upgrades straightforward.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B the Right Choice?
Choose this 50mm bore when you need 982N push force at 0.5 MPa; stepping down to a 40mm bore yields 628N, while a 63mm bore provides 1559N. A self-valved SAIF50X350-08B beats a separate cylinder and remote valve in decentralized stations by cutting plumbing and wiring. The DC24V terminal coil offers IP65 protection and a 0.05s response time. Note: at 350mm stroke, use a guide to manage side loads. For load-holding, select a SAIL lock cylinder instead, as the 5/2 valve routes air but does not lock. Replacement match: 50mm bore, 350mm stroke, 1/4" valve port, DC24V, terminal entry, PT thread, no magnet.
Quick checklist
- ✓ Force at 0.15–0.8 MPa
- ✓ Coil voltage matches panel
- ✓ Terminal vs grommet entry
- ✓ Retract- or extend-when-energised
- ✓ Load-holding → SAIL / BSAI
Airtac SAIF Series Standard Cylinder with Valve SAIF50X350-08B FAQ
The cylinder generates 982N push and 825N pull force at 0.5 MPa. The built-in 4M210-08 5/2 valve has an effective area of 16.0 mm2 (Cv 0.89).
No separate valve is needed. The integrated 5/2 valve holds its position via internal pilot. By factory default, the rod retracts when the DC24V coil is energised, but you can reposition the valve to extend-when-energised.
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