Airtac M5L One-way Roller Lever Type Mechanical Valve M5L05
Mechanically actuated · no coil, no pilot airThe AirTAC Airtac M5L One-way Roller Lever Type Mechanical Valve M5L05 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 M5 with a 2.5 mm2 (Cv 0.14) effective area.
$23.00 $27.26Save 15%- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
Specifications
| Model | M5L05 |
|---|---|
| Valve type | 5/2 way, external control, direct acting |
| Actuation | Roller, free-return type |
| Reset | Automatic (spring) restoration |
| Body series | Mini type |
| Port size | M5 |
| Effective area | 2.5 mm2 (Cv 0.14) |
| 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 | 7.0-10.0 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 M5L05
The M5L05 is a mini 5/2-way external control, direct acting valve that is thrown entirely by machinery - there is no coil, no solenoid and no pilot port anywhere on it. A passing cam or carriage rolls over its lever and trips the spool in ONE direction only: the impact must arrive travelling right to left. Approach it from the other side and nothing happens, which is by design, not a fault - it lets the valve switch on the return pass of a cycle while ignoring the outbound pass over the same track. It resets automatically as the roller is released, so the valve follows the lever back on every stroke. Because the sliding-column spool works against spring rather than line pressure, there is no back-pressure effect and the changeover stays consistent across the full 0-1.0 MPa range.
This is the compact 05 body: the thread is M5 and the effective orifice is 2.5 mm2 (Cv 0.14), sized for small cylinders and light pneumatic signals. AirTAC machines the exhaust outlet on top of the body, so a silencer screws straight in without re-plumbing, and the valve can sit flat on the machine base or be panel mounted. Air arrives filtered to 40 um; once lubricated air has been introduced, keep the same medium going - AirTAC suggests ISO VG32 or an equivalent grade.
Typical applications
Return-pass trigger on a small parts conveyor
A micro end stop over the track trips the one-way roller only as a pallet slides back leftward, sending a 5/2 signal that re-arms the next push cylinder - outbound pallets pass straight over without tripping it.
Slide-retracted confirmation on a drilling fixture
Mounted beside the ways of a bench drill slide, the M5L05 changes over only when the slidewithdraws right to left, venting the clamp and confirming the workpiece area is clear before the operator reaches in.
Reset signal on a pneumatic counting station
At the end of a small pick-and-place cycle, the carrier sweeps across the lever in its permitted direction on the home stroke, latching the counter circuit back to start position while the outward stroke leaves the valve untouched.
How to choose
The genuine choice here is between this M5L05 and the M5R05. Both are rollers on the same mini body; the difference is that the M5R05 trips whichever way the cam passes, while the M5L05 only responds to travel from right to left. Pick the M5L05 when you want the valve to fire on the return stroke alone - for example recharging a circuit only after a slide has withdrawn - and pick the M5R05 when a signal is wanted on both passes. If your cylinder is too greedy for 2.5 mm2, step up to the common 110 or 210 bodies with their 8.0-12.0 mm2 (Cv 0.45-0.67) orifices in 1/8 or 1/4 inch.
Mind the reversal stroke before you fix the cam height: the roller may travel 7.0-10.0 mm to move the spool its 2.0-3.0 mm. AirTAC states explicitly that driving the lever past the published limit damages the valve, so set the trip so the roller cannot bottom out even at maximum machine overrun.
Frequently asked questions
The M5L05 is a 5/2-way external control, direct acting mechanical valve in the mini 05 body with an M5 thread. Effective area is 2.5 mm2 (Cv 0.14). Operating pressure is 0-1.0 MPa (0-145 psi), proof pressure 1.5 MPa (215 psi), and the fluid temperature range is -20 to +70 C. The body is aluminium alloy, air must be filtered by a 40 um element, and lubrication is not required - though if lubricated air is used it should continue, with ISO VG32 or an equivalent grade.
The free-return roller responds in one direction only, with the impact travelling right to left; an approach from the opposite side is deliberately ignored so the valve can signal on the return stroke alone. The roller may move 7.0-10.0 mm to shift the spool through its 2.0-3.0 mm reversal stroke. AirTAC warns explicitly that exceeding these published limits damages the valve, so position the trip so the roller cannot be driven past the end of its stroke even with machine overrun.