A Leader in Radiation Shielding Materials


Neutron Swing Doors

This type of door and frame assembly is designed to support the high weight resulting from shielding materials located in the core of the door.

Custom Steel Construction

A-36 steel with at least 1/4″ and 3/8″ thick faces, and heavy duty rails and stiles that are manufactured from 3/4″ thick A-36 steel.

Custom Adjustable Hinges

Precision machined, anti-friction needle roller bearings and are matched to at least twice the weight of the door. One pair of hinges is supplied per door installation.


Designed for ease of installation, durability, and reliability. Each operator is matched to the door’s physical dimensions and weight.

Door Contents

ASTM B29 LEAD and 5% borated Polyethylene, as designated by the physicist and architectural specifications.

Door Fabrication and Installation

All components are manufactured and installed by Pitts Little Corp’s skilled craftsmen. Frames and doors are shipped to the jobsite: doors, operators, and kill switches are installed by our crews. Frame installation and electrical connections are installed by others.

All doors are warranted against defect for at least one year.

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