Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 400mm stroke and a built-in 4M210-06 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ50 mm
- Stroke400 mm
- Built-in valve4M210-06
- Valve port1/8"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B
The AirTAC SAIF50X400-06B is a double-acting profile cylinder dimensionally interchangeable per ISO 15552, featuring a built-in 4M210-06 5/2 solenoid valve that eliminates the need for a separate remote valve. Driven by a DC24V terminal entry coil drawing 3.0 W with an IP65 rating and a 0.05 s response time, it routes air through an O8 x O5 PU tube manifold. The 4M210-06 valve provides a 14.0 mm2 effective area (Cv 0.78) and handles up to 5 cycles per second.
While the bare cylinder body rates to 1.0 MPa, the integrated valve operates at 0.15-0.8 MPa, establishing the practical working range for this assembled unit. It delivers 982 N of push thrust and 825 N of pull thrust at 0.5 MPa. Factory-set to retract the piston rod when the coil is energised, the valve can be repositioned to extend-when-energised if your machine logic requires it. This self-contained switching design reduces panel space and tubing runs, making it ideal for decentralized stations across large equipment.
Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-06 (5/2) |
|---|---|
| Valve flow | 14.0 mm² (Cv 0.78) |
| 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 SAIF50X400-06B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 50×400 | Bore × stroke in mm. |
| -06 | Valve port 1/8" → 4M210-06. |
| 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 SAIF50X400-06B Is Used
Decentralized Machine Stations
Eliminates long tubing runs to a central panel by switching itself locally via the DC24V signal, saving wiring time on large assembly lines.
Extended Stroke Diverters
Provides 400 mm of travel for sorting or diverting products, using the built-in 4M210 valve to maintain consistent 30-800 mm/s cycling speeds.
Space-Constrained Retrofits
Drops into tight machine footprints where adding an external valve island is impossible, delivering 982 N push force with a compact profile.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF50X400-06B the Right Choice?
Choose this 50 mm bore when you need higher force than a 40 mm cylinder (628 N push at 0.5 MPa) but want a smaller envelope than a 63 mm bore (1559 N push). The 400 mm stroke falls well within the 1200 mm standard maximum for this bore, but at this length you must account for side-load forces and use appropriate guide rails to prevent rod binding. The integrated 4M210-06 valve uses a 1/8" port (Cv 0.78), which pairs well with the cylinder's 1/4" port to sustain speeds across the 30-800 mm/s range.
This DC24V terminal coil configuration suits low-voltage control systems where a direct wire connection is preferred over a grommet. Because the 5/2 valve routes air internally and holds its last position via pilot pressure, it does not function as a lock; if your application requires the load to be held mechanically without live air pressure, consider the SAIL lock variant. When ordering a replacement, verify the 50 mm bore, 400 mm stroke, PT1/8 valve port, DC24V voltage, terminal entry, PT thread, and absence of a magnet (-S).
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 SAIF50X400-06B FAQ
At 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. The integrated 4M210-06 5/2 valve has an effective area of 14.0 mm2 (Cv 0.78) and supports a maximum frequency of 5 cycles per second.
The built-in 4M210 valve switches the cylinder directly from one electrical signal, saving panel space and plumbing. It is factory-set to retract when energised but can be repositioned to extend. The 5/2 valve holds its position via pilot pressure, not mechanically, so it cannot hold a load without live air pressure.
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