Nut Insertion

Trust our experience with heated nut insertion to create rock-solid connections

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Precision controlled heat and position

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Consistent accuracy

AMS Cincinnati Application

Integrated quality controls

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Push Your Production Into Overdrive  

Get out ahead with our expertise and dependable service

The Right Insert and Expert Installation Make a Difference 

Don’t risk failure in the field from assemblies that aren’t up to the job. Getting by with slow equipment or using machinery that’s not suitable to your application can cost you time, money and quality. Learn more today.

Count on AMS to bring superior results to your nut insertion operation:

  • Integrated quality control
  • Reduced machine maintenance and increased uptime
  • Pinpoint accuracy, over and over again

Your Company Is Only as Good as Your Last Delivery  

Your day-to-day responsibilities are challenging enough, you can’t add concerns about machine downtime and sketchy output. Slogging through with slow or unreliable machines isn’t taking your company where you want it to go. When it comes to machine systems, you need workhorses you can bet on.

With AMS, you get predictable, repeatable results and our:

  • Deep application knowledge.
  • 99.5% on-time delivery record and 97% customer satisfaction.
  • 24/7 hotline for urgent support.
  • Flexible “engineering only” option.

Nut Insertion Machines from AMS

The team at AMS calls on decades of experience with heated nut insertion and electronic motion control to design and build premium automated machine systems. Our machines:

Work with virtually any plastic and a wide range of insert sizes and shapes

Carefully control nut heating and positioning

Use electromagnetic induction for consistent, repeatable temperatures

Eliminate wear with non-contact nut heating 

Feature custom-made induction coils for each application

Work with a range of materials

Offer multiple actuators for short cycle times

Insert within 0.02 mm of target, over and over again

Pick up inserts with a proprietary mechanical pick-up mechanism

Quickly solidify plastic to prevent flash and pock marking

Are flexible to accommodate reconfiguring

Getting the Most from Heated Nut Insertion

Hot nut insertion is the process of inserting a threaded nut into a plastic part. There are three main technologies for related applications: inductive heating, conductive heating and ultrasonic insertion. Pairing six-axis robots and integrated quality controls with this technology allows for accurate, repeated insertion of heated nuts into parts of all configurations.

Vibratory Bowl

Vibratory Bowl

Runs the nuts through to ensure the correct part of the insert is fed through every time.

Inductive Heating Coil

Inductive Heating Coil

Nut Insertion Head


Nut Insertion Head

Fixed pocket tooling to ensure proper nut installation. Internal and external cooling upon completion of inserting.



The robot picks the heated nut and directs it into its precise insertion.

Custom Fixture with Sensors

Custom Fixture with Sensors

Holds part in place so that machine can precisely insert nut into the plastic part.

Light Curtains

Light Curtains

To ensure safe run over time, the front light curtains will stop the machining process if it detects the operator.

Emergency Stop and Reset Button

Emergency Stop and Reset Button

Lets the operator control the machine and stop if necessary.

Cycle Start Touch Sensor
Cycle Start Touch Sensor

Cycle Start Touch Sensor

Responds to a finger blocking light rather than to pressure to ensure a safe start every time.

We are the Nut Insertion Experts

Our nut insert platforms are some of our most popular standard products. There are three primary functions that the machine performs to create great parts consistently: Nut singulation, Heating, and Transport/insertion. Our NI platform allows us to be able to commit to a ±0.2mm tolerance on the nut insertion. We can commit to this standard because of the high accuracy and repeatability of the Epson robot and our AMS nut insertion head that is able to create consistent insertions across part variability due to the dynamic, adjustable positioning sleeve.

Inductive hot nut insertion

Inductive hot nut insertion involves heating the nut in a magnetic field produced by an inductive coil.

Conductive Heating

Conductive heating is the process of either pre-heating the plastic prior to insertion, or partially inserting the nut and heating both the plastic and the nut directly via a heated probe.

Ultrasonic insertion

Ultrasonic insertion uses a sonotrode that contacts the insert directly to generate heat through friction.

Go or No Go?

How would automation help your operations and how much would it cost? Find out fast with our online AMS RFQ tool. Don’t guesstimate: Submit a few project details online so you can make informed decisions.

Surefire Automation Plan

  • Share your automation goals with one of our application engineers.
  • Share your vision and goals.
  • Grow your business with nut insertion systems.

Nut Insertion FAQs

Get the answer to Frequently Asked Questions (FAQs) on nut insertion.