Microduct Overriding: Part 3

Microduct overriding has become an increasingly popular method to install new cable in an overly saturated area that may not allow for new ducts to be installed. While the process is not new, it’s incredibly important that your team uses the best possible equipment to get the job done right, avoiding any hiccups that could occur during installation.

Continue reading “Microduct Overriding: Part 3”

Duct Rodders: The Best In The Business

Duct Rodders are a crucial piece of cabling equipment used for various purposes in underground installation. From cleaning ducts to locating paths, threading lines and pulling cables, the frequent use of a duct rodder often leaves it subject to wear and tear. This can complicate the job and even damage your conduit if operated incorrectly.

rodder2 Continue reading “Duct Rodders: The Best In The Business”

Sheaves, Shackles, and Jamb Skids: Equipment Needed for Underground Cable Installation

When pulling cable underground, an assortment of highly specific tools are needed in order to properly and efficiently feed cable into an existing duct. Below the manhole, a combination of sheaves, shackles, and jam skids are needed to effectively get the job done. In this blog, we’ll be explaining the necessary tools for underground cable placement, and providing a few examples of how they fit together.

Screen Shot 2017-03-29 at 3.44.11 PM Continue reading “Sheaves, Shackles, and Jamb Skids: Equipment Needed for Underground Cable Installation”

Introduction to ADSS and the Tools Needed For Installation

ADSS is an acronym for All-dielectric Self-supporting Optical Cable. An alternative to OPGW and OPAC, ADSS cable is designed for aerial self-supporting application for short, medium and long span distances, up to 700 meters. ADSS cable is designed to be lightweight, small in diameter and fully dielectric construction. Utility companies often install ADSS cable along existing overhead transmission lines, sharing the same space as the electrical conductors to reduce costs.ADSS Pole1 ADSS Pole2 Continue reading “Introduction to ADSS and the Tools Needed For Installation”

Selecting the Correct Cable Lashing Wire 


From Boston, MA to Phoenix, AZ, lashing wire is used to connect all corners of the country. Stainless steel lashing wire is used in a lasher to bind an aerial cable or combination of cables to a supporting strand. In supporting telecommunications and electric cable, you could say that lashing wires literally bind America together. Continue reading “Selecting the Correct Cable Lashing Wire “

A Brief History of GMP

In 1936, a young engineer with an entrepreneurial spirit began a specialty machine shop in Philadelphia. Among his early clients was the Pitcairn Autogiro Company in Willow Grove. This young engineer was none other than George M. Pfundt, founder of General Machine Products, pictured here in Washington DC alongside the flying machine (AC-35 Autogyro) that used his precision machined parts. Continue reading “A Brief History of GMP”

Proper Use of the Apollo Cable Lasher


Here at GMP Tools, we offer a variety of different cable lashing machines. Each lasher has specific features and unique modifications that provide today’s telecom installers the best possible equipment to complete any cable lashing job effectively and efficiently. Our cable lashers include:

Continue reading “Proper Use of the Apollo Cable Lasher”

Microduct Overriding: Part 2

In our first installment, we introduced the microduct override process of installing a new microduct in an innerduct occupied with an existing fiber optic cable. A single microduct or multiple microducts can be placed at one time during an override operation. We also outlined the major pieces of equipment required in an override including the Junction Box. In this installment, we’ll discuss the Junction Box and the other microduct blowing accessories required for a microduct override operation.

jbox Continue reading “Microduct Overriding: Part 2”

Maintenance for your Tornado Cable Blower


tornadoRegularly scheduled inspections and maintenance on your Tornado Fiber Optic Cable Blower are critical to keep it running at peak efficiency. One of the most important yet overlooked maintenance services is the proper lubrication of the drive chains. In this blog, we’ll teach you exactly what you need to know to properly lubricate the drive train of your Tornados. Continue reading “Maintenance for your Tornado Cable Blower”