Airtac M5L One-way Roller Lever Type Mechanical Valve M5L11006G
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5L One-way Roller Lever Type Mechanical Valve M5L11006G 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 | M5L11006G |
|---|---|
| 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 | G (BSPP parallel) |
| 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 M5L11006G
The AirTAC M5L11006G is a 5/2 way external control, direct acting valve that is thrown purely by machinery - there is no coil, no pilot port and nothing electrical about it. A cam or carriage rides over the roller and trips the spool in ONE direction only (impact right to left); the reverse pass is invalid by design, not a fault, which is exactly what you want when only the return stroke of a slide should send the signal. The spool returns with the actuator itself, so no spring reset and no manual reset is involved. Inside sits a METAL control set on a sliding-column spool, so the force needed to trip the valve is not affected by working pressure - there is no back-pressure effect, and changeover stays consistent from zero up to 1.0 MPa.
This example uses the 110 body (100 Series single control) with G1/8 ports and an effective area of 8.0 mm2 (Cv 0.45). Both body mounting and panel mounting are supported, and because the exhaust outlet sits on top of the body a silencer screws straight on without adapters. AirTAC supplies the control set as a separate spare part, so a worn roller assembly on a high-cycle slide can be swapped without replacing the valve.
Typical applications
Return-pass trigger on a pneumatic drill slide
Mount the roller so the drill-head carriage trips it only on the retract stroke. The forward pass rolls over harmlessly, the return pass throws the 5/2 valve and vents the clamp circuit, and the next cycle cannot start until the head is genuinely home.
Escape cam on a rotary indexing table
Fit the roller under a cam on the index table so it fires on one rotation segment only. Parts arriving from the wrong direction never switch the valve, which keeps a faulty part from advancing to the next pallet station.
End-of-stroke resequence on a carton closing unit
Trip the roller off the return movement of the tuck-in slide so the 5/2 signal shifts the flap-fold cylinder only after the slide has cleared. One-directional tripping removes the false signals a bidirectional roller would give on the approach pass.
How to choose
Your real choice here is M5R versus M5L, because both are roller-tripped on the same family of bodies. Pick the M5R when the cam passes over the roller in both directions and you want the valve to switch on every pass; pick the M5L when only one pass must count - the return stroke of a feed slide, for example - and a forward-pass trigger would wreck your sequence. On body and port, the next step up from this 110 body is the 200 Series single control (210): the same G1/8 porting flows 9.0 mm2 (Cv 0.50), and moving to 1/4" on a 210 body takes you to 12.0 mm2 (Cv 0.67), the sensible step once the cylinder being signalled grows beyond a compact bore.
Respect the reversal stroke: on this valve the spool travel is 2.0-3.0 mm and the roller actuator stroke is 5.0-7.8 mm. Exceeding these figures damages the valve - AirTAC states this explicitly - so set your cam geometry so the roller is never over-travelled at the end of the machine stroke.
Frequently asked questions
It is a 5/2 way external control, direct acting valve, tripped mechanically by a one-directional roller - no coil and no pilot port. Operating pressure range is 0-1.0 MPa (0-145 psi) with a proof pressure of 1.5 MPa (215 psi), and the working temperature spans -20 to +70 C. Ports are G1/8, the effective area is 8.0 mm2 (Cv 0.45), the body is aluminium alloy, and the air must be filtered through a 40 um element. Once lubricated air has been introduced, keep using the same medium; AirTAC suggests ISO VG32 or an equivalent grade.
The published reversal stroke is the limit. On the M5L the spool travel is 2.0-3.0 mm and the roller actuator stroke is 5.0-7.8 mm; exceeding these figures damages the valve, and AirTAC says so explicitly in the datasheet. Set your cam so the roller is never depressed beyond the upper figure anywhere in the machine cycle, including overshoot at the end of the slide stroke. Also remember this model trips in one direction only - that is intentional, not a defect.