staff has been in the nuclear industry for many years. During this time
they have been contract or full time employees for various companies.
As with any industry, once a designer or project manager develops an outstanding
portfolio they can strike out on their own and be very successful. These
are the people who we use.
of the following projects you may recognize. The same people that designed
the supporting machines and tools will now be making your project successful
of RV Internals Segmentation Tool (2012)
PlantD designed a tool to assist in removing pieces of the lower
internals for a pair of Westinghouse 1000MWe reactors. This tool was 12-foot
(3.6m) long and had two different cutting heads. Both heads utilized cold
cutting technology to allow plates to be removed and placed in GTCC liners.
Decommissioning Support (2011)
PlantD supported the Zion Decommissioning by supplying various
support equipment, manufacturing, and design services directly to Zion
of RV Internals Segmentation Tools (2011)
PlantD designed two large tools to assist in decommissioning
a pair of Westinghouse 1000MWe reactors. One tool was 12-foot (3.6m) diameter
and the other 34-feet (10m) tall. The tools utilized cold cutting technology
to size reduce and disassemble the lower internals.
Bay Unit-3 Reactor Segmentation Plan (2011)
had previously contracted a group to research and propose a segmentation
method for the reactor vessel. The
approach involved complex rigging and lifting of the reactor vessel. As
we did with Plum Brook (NASA's reactor), PlantD proposed removing the
highest curie content first using remote operated tooling. PG&E replaced
the earlier approach with the PlantD plan.
Clearance Tube Welder (2009)
PlantD designed and supplied several specialty tube welding heads
for a new construction. These were remotely operated it extremely tight
clearance areas. No commercially available weld head could fit into the
center of the tube "clusters". Tube size and schedule required
that several different variations of weld heads be created.
S/G Segmentation Plan (2009)
PlantD authored the Segmentation Plan used to size reduce eight
(8) highly contaminated Steam Generators at McGuire NPP. These had been
in temporary storage on-site from earlier Steam Generator Replacement
Projects (SGRP). Our Seg Plan was based off of lessons learned from the
Segmentation and Packaging Plans we have done in the past.
Long Handle Tooling (2008)
PlantD supplied our Type 201 Long Handle Poles and "NN"
gripper system for a fuel pool cleanup.
Seco Vessel Segmentation Equipment Proposal (2005)
This was the first large scale proposal that PlantDecommissiong.com bid
as the prime contractor. Previously we had been a subcontractor or supplied
the manpower for this type of large proposal. Our staff worked with three
subcontractors to put together an Abrasive Water Jet concept based on
lessons learned on previous nuclear reactor vessel segmentations.
(Parr) Vessel Segmentation Proposal (2005)
Responsible for the concept design of numerous tools and support equipment
for the dry segmentation and dismantling of the reactor vessel. Responsible
to approximate the cost for all these tools. Authored the Segmentation
Plan and Waste Packaging Plan that was required in order to determine
which tools were needed, when they were needed, and for how long.
Plum Brook Nuclear Reactor Decommissioning (2001 - 2004).
Designed numerous tools, work platform, and equipment for the dry segmentation
and dismantling of the reactor vessel. Examined drawings and videos to
determine detailed nut and bolt removal of components. Authored the Segmentation
Plan and Waste Packaging Plan. Click
for more information.
LSIV Guide Repair (2000).
Designed the multi-axis robotic arm that delivered and welded new parts
inside of the valves without having to open the valve bonnet. Several
other tools such as inspection and overview cameras, weld head, grinders,
contingency weld repair, jacking mechanism, and spreader beam were qualified
and successfully used at site.
Boat Samples and Vessel Head Repair (1999, 2000).
Designed several EDM (Electrical Discharge Machining) machines and delivery
tools for ongoing sampling and support of head repair. From concept to
tool qualification in less than 2 weeks.
600 Repair Tooling (2000).
Part of design team for various tools to repair and operate remotely under
the reactor vessel head. Tools included weld heads, EDM heads, grinding
tools, video inspection, etc.
Cliffs Steam Generator Replacement (2001, 2003).
Designed various support equipment for the cutting and prepping of the
new and old steam generators.
Designed a 5-axis robotic arm which interfaced with the Westinghouse ROSA
controller. All items had to enter the vessel through a 4-inch diameter
hole that was 30 feet away from the work area. This robotic arm controlled
several End Effectors for various duties. Designed Mold and PT inspection
End Effectors, and various delivery tools for other End Effectors. Adapted
cameras for work with gripper tools.
Our designers were the majority of the team that designed the 4-axis robotic
manipulator arm to plasma cut the lower internals. Responsible for the
design of several End Effectors and delivery tools. Designed full size
mockup to simulate part of the lower internals. Calculated optimum cut
paths for component removal and waste packaging (later called a Segmentation
and Packaging Plan).
A Fitzpatrick (1994, 2000).
Performed site inspection and designed EDM Tools to remove brackets in
spent fuel pool. Most recently designed an MDM (Metal Disintegration Machining)
tool to remotely remove 3 different style brackets from the fuel pool
wall and floor.
Yankee Decommissioning (1999, 2000).
Designed numerous tools such as mechanical shears, MDM heads, unbolting
tools, clamps, hole saws, and remote lift mechanisms for support of this
project. Co-authored an early segmentation plan. Part of the team responsible
for the liner loading and packaging plan.
Rowe Decommissioning (1999).
Designed tool for removing fuel pool upending machine.
Yankee Decommissioning Segmentation Plan (1998).
Prepared a Segmentation Plan for WES (Wachs Energy Services) in support
of their bid for the Reactor Internals Segmentation. Supplied CAD layouts,
Technical Descriptions, and "White Papers" for their proposal.
Cutting methods other than Abrasive Water Jet were evaluated and proposed.
Yankee Thermal Shield Repair (1990).
Designed and assisted in the design of various mechanical, EDM, and MDM
tools. Designed a 40-foot tall removable liner for the fuel pool that
was constructed from modular 4 x 8-foot sections.
Internals Repair (1984).
Tools designed for this project included Plug Installation Tool, Plug
Crimping Tool, Baffle Peening Tool, Gap Measuring Tool, Work Platform,
and underwater inspection cameras. Also responsible for designing mockups.
Yankee Thermal Shield Repair (1984).
Designed the 3-axis CNC Wall Mills, mockup for qualification and testing,
and other support tools.
Lucie Core Barrel Repair (1983).
Designed the 3-axis CNC Wall Mills that mechanically cut the Thermal Shield.
Wong, Korea Split Pin Replacement (1999).
Supplied the on site Tooling Engineer for the Westinghouse split pin replacement
Shan Lower Internals Replacement (1999).
Designed several EDM Tools to create accurate size and location for counter
bores. Also designed several mechanical cutting and gauging tools.
Cobalt Reduction Program (1993).
Design of the remote machining tool and support tooling to remove cobalt
from gate valves. Designed the intricate gauging tools which were successfully
used at site.
Space Station Pipe Repair (1994).
Conceptual design and price estimate for a pipe repair machine to be operated
in zero gravity conditions and by inexperienced operators.
& L Guide Tube Modification (1986).
Designed remotely installed and operated EDM tool to add multiple slots
to instrument guide tubes while they were still assembled to the reactor
Seal Project (1988, 1989).
Designed Stalk Measuring Device, Stalk Cutter, and various mechanical
2 and Indian Point 3 Fuel Guide Pin Repair (1990).
Designed EDM and mechanical tooling to remove and straighten bent guide
pins. Later design improvements for same work at D.C. Cook, Palisades,
St. Vrain Decommissioning Support (1990-1994).
Design of various tooling to support the upcoming decommissioning efforts.
Designed equipment for testing deep-water plasma cutting and early MDM
electrode design for optimum cutting parameters.
Rowe Repair (1991).
Designed various EDM tools, gauges, delivery systems, inspection devices,
and full-scale mockup.
Various tool and mockup designs.
Arc Weld Head Upgrade (1992).
Modified existing camera system for use on Astro Arc weld heads.
Point Tube Replacement (1993).
Part of design team for Steam Generator tube removal.
Waste Blocks (1993).
Designed MDM tooling to add pocket for lift hooks to blocks of waste.
Because of the high quantity of cuts required, electrodes and tools where
designed for optimum speed.
Designed various EDM, MDM, and mechanical cutting tools for numerous RTD
projects. Supported many of the project management activities.
Designed EDM Tool for Stop Plate Head.
Dry Fuel Storage (1994).
Designed mechanical cutting mill to remove and prep lid from dry storage
Reactor Vessel Drain Unplugging Project (1995).
This involved adapting special hot tap equipment for confined spaces and
high pressure water lance equipment to remove debris trapped inside the
reactor vessel drain line.
Pipeline Inspection (1995, 1996).
Designed rotating delivery tool for X-ray inspection head to be operated
remotely. Designed for quick setup in a hostile desert environment.
Services Pipeline Inspection Rover (1996)
Quoted, specified, and generated the general design of a six-axis, hydraulic
boom arm mounted on a portable vehicle. Used to manipulate x-ray inspection
equipment on overhead piping in oil refineries.
contact us for more information