McNally Industries, LLC

McNally Industries is a Non-Traditional, experienced, hardworking and passionate engineering and manufacturing company. We support the Department of Defense and Defense Primes through innovation and sustainment providing safe, reliable and ready systems to those defending our country.

Core Competencies – Concept design through full rate production as well as aftermarket sustainment.

– Design Engineering – 30+ Years of Design, Production, Integration, Assembly, Test and Check-out.
– Complex Precision Machining – Since 1942 McNally has prided ourselves in machining of challenging and difficult metal components. Examples: Medium Caliber Gun Components, High Stress Pump Systems, B-52 Valve Blocks.
– Difficult materials and finishing – robust supply chain, experienced SCM/PM/Engineering teams.
– Rapid Prototyping and Reverse Engineering – we take old/obsolete things with gapped or missing TDPs and create new (Level III TDP).
– Large Complex Assembly, Test and Checkout – Examples of current experience: USN Mk6 Ammo Hoist for the Mk45 Weapon System, Mk52 7.62 and M230/XM914 Chain Guns, Mortar Weapon System Components (Bi Pods), CIWS Phalanx Pumps, Bradley Transmission (Make-up) Pumps.

– Quality Business Systems – AS9100D Certified, ISO9001-2015, ITAR, NIST 800-171/CMMC

McNally is located in Grantsburg WI with (1hr) proximity to Minneapolis.


Featured Technology

Electrical Cable Installation (& Removal) Tool Set


The Electrical Capstan Tool consists of an electric motor, planetary gear reduction and
drum integrated into a custom-built frame. A rope is wrapped around the rotating drum by
pulling on the free end of the rope it grips the drum and pulls the cable. The pulling force
and speed of the tool are controlled by varying the tension on the free end of the rope
which allows the rope to either grip or slip on the drum. The Rope is attached to the cable
using either a cable grip or by tying it to the cable. The frame transfers the pulling loads
from the drum to the anchor point where it is attached to ship structure using a chain.
Under load the tool automatically aligns itself with the direction of the cable pull.
When there is insufficient space to locate the capstan in line with the cable pulled Direction
a sheave may be used so that the capstan can be mounted in a more convenient space.

The Pneumatic Dual Roller Tool utilizes two pneumatic gear motors with rollers integrated
into a custom-built frame. The cable is clamped between two replaceable and adjustable
rubber rollers which counter rotate to move the cable. The speed and pulling force are
controlled by a throttle valve while a selector valve allows the tool to pull in either direction.
The adjustable frame allows the roller spacing to adapt to different sized cables and to
apply clamping force to grip the cable. The frame transfers the pulling loads from Rollers to
anchor points at either end of the tool where it is attached to ship structure using a chain.
Under load the tool automatically aligns itself with the direction of the cable pull.


In ship construction, manually installing or pulling the
electrical power cables through cable ways is an expensive,
labor-intensive and injury prone operation. The cable is very
stiff, can be up to three inches in diameter, weigh up to
seven pounds per foot and be up to four hundred feet in
length. Millions of feet of cable must be installed for each
ship. Currently the workers physically grasp the cable and
move it a few inches at a time, until it’s routed into the
desired position. Depending on the size, length and cable
routing path it can take upwards of 25 workers to install a
single cable. Most cable ways are overhead with limited
access, have numerous bends and elevation changes, and
are often congested with pipes ducts and other nearby
obstructions that further complicate cable installation.


Easy-to-use, small, lightweight portable tools have been
developed to reduce the effort required to install electrical
power cables aboard Navy ships, reducing cable installation
labor and associated injuries. This solution includes a
Pneumatic Dual Roller Tool and an Electrical Capstan Tool
that apply a controlled force while installing the cable along
the intended path.
Used in tandem the Capstan Tool is secured to ship
structure and connected to the lead end of the cable while
utilizing an adjustable load limiting control to move the cable.
The Dual Roller Tool is connected to trailing areas of the
cable run to assist in pushing the cable into cable trays or
around bends.


‘- Labor savings as a result of installing more cable
per shift
– Reduced potential for injury
– Ability to install cables using fewer workers or when
fewer workers are available
– Reduced worker fatigue
– Ability to install longer cable runs with less need to
break out the cable
– Improved ergonomics
– Reduced time to install cable

Dewey Klaphake