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AS1201F-M5-04

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SMC AS1201F-M5-04 is a compact meter-out elbow speed controller with M5 x 0.8 thread, 4 mm one-touch tubing connection and hexagonal lock nut.
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Ships by Wednesday, September 30
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Technical specifications for AS1201F-M5-04

  • Manufacturer:
    SMC
  • Part Number:
    AS1201F-M5-04
  • Product Family:
    SMC
  • Product Type:
    Elbow Speed Controller with One-touch Fitting
  • Stock:
    1
  • Control Method:
    Meter-out
  • Body Style:
    Elbow
  • Port Thread:
    M5 x 0.8
  • Tube Outside Diameter:
    4 mm
  • Tube Connection:
    One-touch fitting
  • Adjustment Retention:
    Hexagonal lock nut
  • Applicable Fluid:
    Air
  • Weight:
    0.007 kg
  • Tariff Code:
    Please confirm the destination before shipping
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Pneumatic Match Adjustment Leak and Motion Checks Product Applications

Features:

  • Actuator-side flow control: The elbow form combines the threaded cylinder port and tubing connection.
  • Meter-out regulation: Exhaust restriction supports steadier pneumatic motion under changing load.
  • Locked adjustment: The hexagonal nut secures the final needle position after commissioning.
AS1201F-M5-04 controls cylinder speed by adjusting the exhaust path at the actuator port.

Its complete code fixes both the M5 mounting thread and the 4 mm tube interface, making suffix retention important for replacement.

The final setting is established on the actual machine because pressure, load, tubing and cylinder volume influence motion.

Apter Power can help confirm the SMC AS1201F-M5-04 Elbow Speed Controller, meter-out direction, M5 port and 4 mm tubing requirement before quotation.
SMC AS1201F-M5-04 Elbow Speed Controller with One-touch Fitting Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Flow direction: Confirm the actuator needs meter-out control rather than meter-in regulation.
  • Thread identity: Protect the M5 port from substitution with a visually similar larger thread.
  • Tube interface: Use 4 mm outside-diameter tubing within the approved tolerance.
  • Operating medium: Keep the circuit within the published air-service conditions.
  • Safe start: Begin with restricted flow so the actuator cannot accelerate unexpectedly.
  • Incremental tuning: Increase speed in small steps while observing the full stroke and load.
  • Locking: Hold the final needle position while securing the hexagonal nut.
  • Access: Leave sufficient wrench clearance without side-loading the fitting body.
  • Tube seating: Cut tubing squarely and confirm full insertion into the one-touch collet.
  • Thread sealing: Apply the specified installation method without contaminating the flow path.
  • Speed drift: Compare needle position, pressure and load before replacing the controller.
  • Release check: Verify the tube cannot pull free after the circuit is safely repressurized.
  • Compact cylinders: Sets extension or retraction speed at an M5 actuator port.
  • Pick-and-place tooling: Reduces abrupt motion in light pneumatic mechanisms.
  • Fixture clamps: Controls approach speed while retaining rapid free flow in the opposite direction.
  • Service replacement: Restores a matching thread, tube and control-direction configuration.
Description
AS1201F-M5-04 meters exhaust flow at a pneumatic actuator through an elbow body, combining an M5 threaded port with a 4 mm one-touch tube connection in a compact assembly.

The meter-out configuration of AS1201F-M5-04 is intended to stabilize cylinder motion by restricting discharged air while supplying the opposite chamber freely. Needle position and upstream pressure still determine the observed speed.

AS1201F-M5-04 uses a hexagonal lock nut to preserve the commissioned adjustment. Replacement work should match thread, tube size, flow direction and available wrench clearance rather than relying on the external shape alone.
Alternative Names
AS1201FM504 AS1201F M5 04
Technical notes
AS1201F-M5-04 is a meter-out controller; reversing it changes the pneumatic behavior. Exhaust the circuit, verify the M5 port and 4 mm tube, then start with the needle restricted and increase speed gradually. Stop if motion becomes unstable, tubing pulls sideways, or the lock nut cannot be secured without loading the fitting.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can AS1201F-M5-04 replace a speed controller that meters air into the cylinder?
Not without reviewing the circuit. AS1201F-M5-04 is the meter-out configuration, so using it for a meter-in design changes how actuator motion is controlled.
How should a technician commission AS1201F-M5-04 after rebuilding a pneumatic axis?
Begin from a restricted setting and increase speed in small steps while guarding the mechanism. Release the axis only when the full stroke remains stable under its normal load.
Can an adapter make AS1201F-M5-04 suitable for a machine using larger tubing?
An adapter does not preserve the documented 4 mm one-touch interface or its mechanical loading. Treat that change as a circuit redesign, not an equivalent replacement.
Why can an actuator keep drifting after AS1201F-M5-04 has been locked?
The speed controller is not the only cause. Compare the retained needle position with supply pressure, load and leakage, then repair the confirmed fault path before readjusting.
Can AS1201F-M5-04 be commissioned where the actuator body blocks access to its lock nut?
No if the final needle setting cannot be secured without side-loading the fitting. Change the approved installation arrangement instead of leaving the adjustment unlocked.
When should a mechanic reject AS1201F-M5-04 during fitting?
Reject it if the M5 thread will not start freely or the 4 mm tube cannot seat without side load. Do not use force or thread adapters to make the part fit.

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