S3.5 Screw Step Feeder Enclosed With Hopper

An electrically motorized 3.5″ (90mm) screw step feeder with a hopper suitable for feeding or presenting fasteners to a drive head or screw dispenser assembly.

WIDG – Feeder Short Description

Additional information

Step Size

3.5" (89mm)

Fastener Delivery Method

Blow Feed Delivery

Max. Fastener Head Ø

11mm

Max. Fastener Length

38mm

Max. Fastener Shaft Ø

5mm

Fastener Type

Screw, Set Screw, Nut, Bolt, Pin, Stud, Rivet

In Stock

Description

The S3.5 Screw Step Feeder Enclosed With Hopper:

An Automatic Screw Step Feeder Design Engineered To Suit Your Application.

To prevent tampering, we’ve engineered our automatic step feeder systems so that there are no mechanical adjustments. All parts of our step feeder mechanism are machined to the specifications of your particular fastener, and dowel pinned in place. This make maintenance of our step feeding systems easy: the escapement can be taken apart for cleaning, and it will go back together precisely as originally manufactured.

Our track level sensor is custom made for the Carlson escapement, ensuring superior accuracy & fastener compatibility. This sensor mounts to the escapement track and requires no positional adjustment, like the rest of our tooling. The sensor’s sensitivity is preset from the factory, and in most cases does not require adjustment.

To prevent fastener jams:

We have engineered a 3 Step Fastener Alignment Verification into each of our automated step feeders & screw presenters.

One of the most frustrating challenges caused by modern step feeding systems is the frequency of fastener jams. To solve this, we have engineered a unique 3-step fastener alignment verification process into our automatic stepfeeders.

1.

First Step:

Non-Adjustable Sorting Air Jet

The first step in our 3-step fastener verification is our Non-Adjustable Sorting Air jet – a highly pressurized stream of air that ejects misaligned fasteners from the track. This is our first line of defense in the prevention of feeding misaligned fasteners into the automated step feeder mechanism’s blow-feed tube, or from reaching the screw presenter pickup area.

2.

Second Step:

Non-Adjustable Qualifying Track Cover:​​

The second step is a Non-Adjustable Bowl Track Qualifying Cover, which prevents misaligned fasteners from entering the escapement. The simple construction of this feature, coupled with there being no need for adjustment, makes it a powerful addition.

3.

Third Step:

Escapement-Level U-Bracket Optic Sensor​

The third step is our U-Bracket Optic Sensor – a laser-accurate sensor which controls the escapement track level, effectively preventing fasteners from being vibrated towards an already-fully-loaded track. When the escapement is full, step feeder mechanism’s elevator will stop lifting screws, stopping the flow of fasteners to the escapement. This prevents back pressure in the tray.

Automatic Blow-Fed Screw Feeders S3.5 Screw Step Feeder Enclosed With Hopper

S3.5 Screw Step Feeder Enclosed With Hopper

Step Feeder System Anatomy & Features

The S3.5 Series of step feeders comes complete with hardened tool steel and stainless steel escapement. Optic controls switch the bowl vibration on and off to prevent excessive wear and over-pressurization of escapement and tooling areas as seen on other manufacturer’s systems.

Featuring an electrically motorized screw elevator assembly which lifts fasteners from the tray into the track, Carlson Engineering step feeders are a more silent option for feeding fasteners. The low vibration also helps to reduce the uneven coating distribution of fasteners coated with loctite or other substrates that is sometimes seen in vibratory bowl feeding.

The enclosed design of this feeder ensures minimal particulate contamination when delivering fasteners to a drive head or dispenser, while also serving to reduce the noise caused by the vibration of the drive cell. The unique Carlson Fastener Hopper design sits snugly above the vibratory bowl, unlike competing manufacturer models that site adjacent to the device. This causes less footprint, leaving more valuable floor or table space available.

  • Resistant to wear & tear damage
  • Non-magnetic nickel-teflon coating
  • 3-Step fastener alignment verification prevents jams
  • Ideal method for silently feeding/presenting coated fasteners
  • Hardened & heat-treated durable tool steel composition
  • Longer run time between feeds due to less track level fastener jams
  • Less pinch points & no mechanical adjustments for enhanced safety

Ready to get a quote?

Use Our Personalized Product Configurator.

Enter your fastener & applications specifications into our product configurator to automatically configure a personalized set of drive head & feeder / presenter options for yourself. Take it to the next level, and turn your configured results into a product quote request – or just contact us with your information using our main contact form.

Additional information

Step Size

3.5" (89mm)

Fastener Delivery Method

Blow Feed Delivery

Max. Fastener Head Ø

11mm

Max. Fastener Length

38mm

Max. Fastener Shaft Ø

5mm

Fastener Type

Screw, Set Screw, Nut, Bolt, Pin, Stud, Rivet