Airtac M5L One-way Roller Lever Type Mechanical Valve M5L11006
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5L One-way Roller Lever Type Mechanical Valve M5L11006 is a genuine 5/2-way roller, free-return type control valve. A one-way roller. It switches on the return pass only and idles in the other direction. It is an external control, direct-acting valve - the spool is moved mechanically, so there is nothing to wire and no pilot line to plumb. Ports are PT1/8 with a 8.0 mm2 (Cv 0.45) effective area.
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Specifications
| Model | M5L11006 |
|---|---|
| Valve type | 5/2 way, external control, direct acting |
| Actuation | Roller, free-return type |
| Reset | Automatic (spring) restoration |
| Body series | 100 Series, single control |
| Port size | PT1/8 |
| Effective area | 8.0 mm2 (Cv 0.45) |
| Fluid | Air, filtered by a 40 um element |
|---|---|
| Pressure range | 0 - 1.0 MPa (0 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 C |
| Body material | Aluminium alloy |
| Lubrication | Not required |
| Thread standard | PT (Rc tapered) |
| Spool stroke | 2.0-3.0 mm |
| Actuator stroke | 5.0-7.8 mm at the roller |
Sliding-column (spool) construction, so operating force is not affected by working pressure - there is no back-pressure effect. Lubrication is not required, but once the valve has been run on lubricated air it must stay on lubricated air; AirTAC suggests ISO VG32 or equivalent. The roller, free-return type control set is METAL, which gives a longer service life than the engineering-plastic heads. The exhaust outlet sits on top of the body, so a silencer fits directly.
About the M5L11006
The M5L11006 is a 5/2-way external control, direct acting valve with no coil and no pilot port: the spool is thrown by a roller lever that a moving machine part strikes. Unlike the M5R, this free-return roller responds to travel in one direction only - impact right to left - while the opposite pass deliberately does nothing. That one-way behaviour is by design, not a defect, and it is exactly what you want when the valve must switch on the return stroke alone. There is no spring reset or manual hold to manage: the lever resets itself as the cam passes off it.
This unit is the 110 body (100 Series single control) with PT1/8 ports and an effective area of 8.0 mm2 (Cv 0.45). The roller control set is metal for long, stable service, and the sliding-column spool means the changeover force is unaffected by working pressure - no back-pressure effect across the 0-1.0 MPa range. The exhaust sits on top of the body, so a silencer screws on without re-plumbing.
Typical applications
Surface grinder table return signal
Bolt the valve to the grinder bed so the table cam strikes the roller only on the right-to-left grinding pass, switching the 5/2 valve to retract or signal at end of stroke while the forward pass trips nothing.
One-way pallet gate on a fixture line
Mount the roller so pallets entering the gate hit it left-to-right without effect; a pallet pushed back out right-to-left throws the spool and vents or re-pressurises the stop cylinder as required.
Drill press jig unclamp on retract
Wire it into the clamp circuit of a drill jig so the rising drill head trips the roller as it returns upward, releasing clamps only after the tool has cleared the workpiece.
How to choose
The real decision here is M5R versus M5L on the same 110 body. If a cam must fire the valve on both passes of the cycle, order the M5R11006; if you only want a signal on the return run and need the forward pass to ignore the lever entirely, this L version saves you extra logic. On body size, the 110 with 1/8" ports gives 8.0 mm2 (Cv 0.45) - step up to a 210 body with 1/4" ports (12.0 mm2, Cv 0.67) only if the cylinder is large enough to need it.
Respect the reversal stroke: 2.0-3.0 mm at the spool and 5.0-7.8 mm at the roller lever. Exceeding these figures damages the valve, so set your cam depth and overtravel stops to stay inside the window.
Frequently asked questions
It is a 5/2-way external control, direct acting mechanical valve with PT1/8 ports on the 110 body. Working pressure is 0-1.0 MPa (0-145 psi), proof pressure 1.5 MPa (215 psi), and media temperature -20 to +70 C with air filtered by a 40 um element. Effective area is 8.0 mm2 (Cv 0.45). The body is aluminium alloy and lubrication is not required, though if lubricated air is introduced, continue with ISO VG32 or equivalent.
The valve is damaged - AirTAC states this explicitly. Keep actuator travel between 5.0-7.8 mm at the roller lever (spool stroke 2.0-3.0 mm) by setting cam depth and mechanical stops accordingly. Also remember the free-return design ignores travel in one direction entirely; that is normal, not a fault. Control sets can be ordered separately as spares if a lever is ever damaged in service.