Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 200mm 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
- Stroke200 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B
The AirTAC SAIF40X200-08B is a double-acting ISO 15552 profile cylinder fitted with a built-in 4M210-08 5/2 solenoid valve, delivering a Cv of 0.89. Driven by a DC24V terminal coil consuming 3.0 W, it switches itself directly from one electrical signal, eliminating the need for a separate remote valve and cutting down on panel space and PU tubing runs. The assembly operates within a practical pressure range of 0.15-0.8 MPa, as the integrated valve limits the cylinder's bare 1.0 MPa rating.
In this configuration, the 40mm bore generates 628N of push force at 0.5 MPa, supported by a carbon steel piston rod with PT1/4 cylinder ports. The manifold connects to the valve using O8xO5 PU tubing, and the factory setting retracts the rod when the coil is energised, which you can reconfigure to extend-when-energised by repositioning the valve. It reaches a maximum frequency of 5 cycles per second and responds in 0.05s.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/4 |
| 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 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 (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 SAIF Series Standard Cylinder with Valve SAIF40X200-08B
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×200 | 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 SAIF40X200-08B Is Used
Decentralized Assembly Stations
Ideal for large machines where running individual valve lines is costly, this self-switching cylinder operates independently from a single DC24V signal.
Compact Clamping Fixtures
Provides 628N of push force at 0.5 MPa in tight spaces, eliminating the need for an external valve manifold and reducing overall machine footprint.
Component Ejection
The 5/2 valve retracts the rod on energisation by default, offering quick 0.05s response times for high-speed ejection operations up to 5 cycles per second.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X200-08B the Right Choice?
Choose this 40mm bore when you need 628N push force at 0.5 MPa; stepping down to a 32mm bore yields 402N, while a 50mm bore provides 982N if your load demands more push power. The self-valved SAIF40X200-08B excels over a separate cylinder and remote valve in decentralized machine stations where routing air lines is costly or space is tight. It uses a DC24V terminal electrical entry with PT threaded ports.
Because the stroke is 200mm, ensure adequate guide support to prevent excessive side loads on the rod. Remember that the built-in 5/2 valve routes air but does not lock the load mechanically; for position holding without live pressure, consider the SAIL lock variant. To replace this unit, match the 40mm bore, 200mm stroke, 08 valve port, DC24V voltage, terminal entry, PT thread, and no 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 SAIF40X200-08B FAQ
The 40mm bore provides 628N of push force at 0.5 MPa and 879N at 0.7 MPa. While the cylinder body rates to 1.0 MPa, the practical operating range for the assembled SAIF unit is 0.15-0.8 MPa due to the integrated 4M210 valve limits.
No separate remote valve is needed. The built-in 4M210-08 5/2 valve switches the cylinder directly from a DC24V terminal coil signal. By factory default, the piston rod retracts when the coil is energised, but you can reposition the valve to extend-when-energised.
Related AirTAC Cylinders & Valves
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