Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 500mm 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
- Stroke500 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilAC220V
- EntryTerminal
About the Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A
The AirTAC SAIF40X500S-08A is a double-acting ISO 15552 profile cylinder featuring an integrated 4M210-08 5/2 solenoid valve. Equipped with a magnetic piston (-S) for CMSE reed and DMSE electronic sensors, it delivers 628N of push force at 0.5 MPa. The AC220V terminal coil draws 3.5 VA, responds in 0.05s, and carries an IP65 rating. Because the cylinder body rates to 1.0 MPa but the internal pilot valve operates at 0.15-0.8 MPa, the practical working range for this assembled unit is 0.15-0.8 MPa.
By routing air through a manifold block and O8xO5 PU tubing, the distinct valve port (1/4) and cylinder port (1/4) are cleanly managed without external plumbing. The factory setting retracts the carbon steel rod when the coil is energized, but you can reposition the valve to extend-when-energized. This decentralized design eliminates remote valves, saving panel space and tubing across large machines.
Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A Technical Specifications
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 500 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 | AC220V · AC 3.5 VA |
| 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 SAIF40X500S-08A
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 40×500 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| A | Coil voltage AC220V. |
| 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 SAIF40X500S-08A Is Used
Decentralized Automation
Ideal for large machines with decentralized stations, eliminating long pneumatic runs from a central valve island.
Space-Constrained Handling
Fits into compact retrofit projects where panel space is tight and running separate valve tubing is costly.
Material Transfer
Provides reliable 628N push force for diverting or sorting packages on production lines.
Is the Airtac SAIF Series Standard Cylinder with Valve SAIF40X500S-08A the Right Choice?
Choose this 40mm bore when 32mm lacks thrust (offering 628N push vs the 32mm's 402N at 0.5 MPa) or when a 50mm bore provides excess capacity (982N). The 500mm stroke is well within the 1200mm standard maximum for this bore, but at this length you should manage side loads with an external guide to prevent premature seal wear. The self-valved architecture beats a separate cylinder plus remote valve in space-tight machines by consolidating control into one coil signal.
For replacements, match the 40mm bore, 500mm stroke, 4M210-08 valve with 1/4 cylinder port, AC220V voltage, PT tapered threads, terminal entry, and the -S magnet. Remember that the 5/2 valve and adjustable air cushions decelerate the load near stroke ends but do not hold position without live pressure; for true load-holding, consider the SAIL lock cylinder instead.
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 SAIF40X500S-08A FAQ
The 40mm bore provides 628N push and 528N pull force at 0.5 MPa. The integrated 4M210-08 5/2 valve has a 16.0mm effective orifice area with a Cv of 0.89.
It uses a 5/2 solenoid valve that holds position via internal pilot pressure. The factory default retracts the rod when energized, but it can be reconfigured to extend-when-energized. This unit is AC220V with a terminal entry, but other voltages like DC24V are available.
Related AirTAC Cylinders & Valves
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