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Berg Engineering & Sales Company, Inc.
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ilac-MRA ANAB Accredited Calibration Laboratory

Ultrasonic Bolting Measurement

Dakota Ultrasonics Minimax and Max II are the latest advancements in bolt tension monitoring, replacing GE's Bolt Mike III. These devices clamp onto the head of bolts to test their threads in order to see how they respond to differing levels of stress or pressure. The applications of these devices can be useful for the automotive, aerospace and oil industries.


Berg offers the complete line of Dakota Ultrasonics bolt measurement instruments and still calibrates the Bolt Mike III from GE along with a variety of accessories including batteries, cables, cases, couplant, manuals, and transducers.  Please browse our categories to find the best products for you.  If you have any questions about our ultrasonic test equipment, please give us a call at 1-847-577-3980 or send an email to [email protected].  Our knowledgeable staff is there to help.

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Details about Dakota Mini-Max Bolt Tension Monitor with Temperature Connector
Product code: Z-156-0006 Dakota Mini-Max Bolt Tension Monitor with Temperature Connector
The Mini-Max monitors bolts of virtually any material from 1/2 inch to 8 feet in length. Comes with temperature connector.
Details about Dakota Temperature Sensor with 6' Cable
New Product
Product code: A-156-8001 Dakota Temperature Sensor with 6' Cable
Price: $570.00
The Mini-Max and Max II use this Temperature Sensor with 6' Cable.
Details about Dakota Max II Bolt Tension Monitor with Temperature Connector
Product code: Z-197-0001 Dakota Max II Bolt Tension Monitor with Temperature Connector
The Max II enables monitoring bolt tension of virtually any material from 1 inch to 100 feet in length.
Details about GE BOLT MIKE III
Product code: 062-900-064 GE BOLT MIKE III
Details about Dakota Non-Magnetic Single Element Contact Transducers
New Product
Product code: NON-MAG-TRANSDUCERS Dakota Non-Magnetic Single Element Contact Transducers
$390.00 to $480.00
Dakota Ultrasonics non-magnetic single element contact transducers are designed to work with the Mini-Max and Max II.
Details about Dakota Magnetic Single Element Contact Transducers
New Product
Product code: MAG-TRANSDUCERS Dakota Magnetic Single Element Contact Transducers
$800.00 to $895.00
The Dakota Ultrasonics magnetic single element contact transducers are designed to work with the Mini-Max and Max II.
Details about Dakota Steel Calibration Bars
New Product
Product code: CALIBRATION-BAR Dakota Steel Calibration Bars
$380.00 to $1,235.00
The Dakota Ultrasonics steel calibration bars are made of 4140 steel and come in both 3" and 6" lengths.
Details about Dakota Transducer Cables
New Product
Product code: TRANSDUCER-CABLES Dakota Transducer Cables
$85.00 to $240.00
The Dakota Ultrasonics transducer cables for the Max II and Mini-Max.
Details about Dakota Shut Off Box (Serial)
New Product
Product code: A-167-5002 Dakota Shut Off Box (Serial)
Quote Pricing
The Dakota Ultrasonics Shut Off Box (control a pump) Serial is for use with the Max II and the Mini-Max.
Details about Dakota Shut Off Box (Direct Hardware)
New Product
Product code: A-167-5004 Dakota Shut Off Box (Direct Hardware)
Price: $525.00
The Dakota Ultrasonics Shut Off Box (control a pump) Direct Hardware is for use with the Max II.
Details about Dakota Magnetic Spring Loaded Center Pin Fixture
Product code: A-000-9002 Dakota Magnetic Spring Loaded Center Pin Fixture
Price: $275.00
1/8" Magnetic Spring Loaded Center Pin Fixture with Hex Head bolts.
Details about Dakota Glue On Single Contact Crystals
Product code: CONTACT-CRYSTALS Dakota Glue On Single Contact Crystals
Price: $135.00
1/8" Magnetic Spring Loaded Center Pin Fixture with Hex Head bolts.
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