Bi-Part Shielded Door System

El Dorado direct shielding bi-part doors are manufactured with the highest quality materials and workmanship. Each door system is custom designed and fabricated to meet the requirements of your project.

Features:

  • IKO linear motion system with fully machined beam surfaces
  • Long bearing block bodies resulting in longer linear motion system life
  • Bearing capillary plates significantly reduce requirements for manual lubrication
  • Structural steel components epoxy painted and door primed for final finish
  • Threshold sensor and BEA presence sensors
  • Brookfield Series 4100 Electric Operator
  • 40 horizontal beam infrared curtain on exterior door jamb
  • Battery Back Up
  • Manual override
  • 3 year linear motion system warranty
  • 1 year operator warranty

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Shielded Sliding Door System

El Dorado direct shielding doors are manufactured with the highest quality materials and workmanship. Each door system is custom designed and fabricated to meet the requirements of your project.

Features:

  • IKO linear motion system with fully machined beam surfaces
  • Long bearing block bodies resulting in longer linear motion system life
  • Bearing capillary plates significantly reduce requirements for manual lubrication
  • Structural steel components epoxy painted and door primed for final finish
  • Pressure sensitive leading edges and BEA presence sensors
  • Brookfield Series 4000 Electric Operator
  • Partial open feature standard
  • Battery Back Up
  • Manual override
  • 3 year linear motion system warranty
  • 1 year operator warranty

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Shielded Swing Door System

El Dorado Metals heavy radiation shielding swing doors are manufactured with the highest quality materials and workmanship. Typical applications include linear accelerator neutron doors, Tomo Therapy doors, and HDR doors. Each radiation shielding door and frame is custom designed and fabricated to meet the requirements of your radiation shielding project.

Features:

  • Exclusive hinge mounting system ensuring precision pin alignment
  • Structural frame anchors specifically designed for vertical and radial door support of the frame
  • Operator mounting layout pre-drilled and tapped for accurate alignment
  • Offset hinge stop which results in a designed clear opening when the door is open to 90°
  • Electric door operators certified by the manufacturer to operate doors at designed weights and torque
  • Partial open feature standard
  • Engineered for installation of several available safety devices

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Lead Lined Solid Core Wood Doors

El Dorado's lead lined solid core wood doors are built to order, with lead thickness from 1/32" to 1/2". Our lead lined doors feature a continuous lead sheet that is placed in the center of a divided wood core and securely fastened with lead covered bolts. Lead doors are available with a variety of wood veneers including Red Oak, White Oak, Birch, and Maple. Plastic laminates with optional edge strips are also available on all lead lined doors. Edge strips are available for wood veneers and are standard on plastic laminates.

The standard undercut on our lead lined doors is 1/8" on each side of the door, 1/8" at the top of the doors and 1/2" at the bottom of the door. We machine lead door slabs for almost any hardware as long as it is compatible with the lead core. This includes cylindrical and mortised locksets, butt hinges, pivot hinges, flush bolts, automatic door bottoms and many more.

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Lead Lined Hollow Metal Doors

El Dorado's lead lined hollow metal doors are built to order, with lead thickness from 1/32" to 1/8". Our lead lined hollow metal doors feature a continuous lead sheet that is placed in the center of the door.

The standard undercut on our lead lined doors is 1/8" on each side of the door, 1/8" at the top of the doors and 1/2" at the bottom of the door. The doors are prepped for almost any hardware as long as it is compatible with the lead core. This includes cylindrical and mortised locksets, butt hinges, pivot hinges, flush bolts, and many more.

Lead Lined Plywood

El Dorado offers lead lined plywood paneling for lead lining walls, ceilings and floors. Like El Dorado's lead lined drywall, lead lined plywood is mastic bonded under heavy pressure to a single un-pierced piece of lead and comes complete with a seam strip on one end.

Lead lined plywood is generally used where a lead thickness in excess of 1/8" but less than 3/4" is required. Lead plywood panels can be fabricated in any width less than 48 inches and lengths less than 96 inches. Sizes should be based on stud spacing and panel weights. Each lead lined plywood panel should be sized to fully sustain its own weight without requiring intermediate fastening between joints. Lead plywood can be fire rated and is available in any grade and thickness

.

El Dorado offers full design and installation services for any lead plywood systems for radiation shielding including PET/CT shielding.

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Lead Lined Drywall

El Dorado's lead lined drywall (also known as lead lined sheetrock or lead lined gypsum) is available in 1/2" or 5/8" thicknesses. Our lead lined drywall is type X fire code sheetrock meeting classification ASTM C 36. We use pure lead sheeting which meets federal specification QQ-L-201-F, Grade C. The lead sheet is factory laminated to the back side of the drywall for superior performance. The lead extends 1" beyond on vertical edges of the drywall to allow for overlapping of the joints which eliminates the need for separate lead joint strips. 2" wide strips in lieu of the 49" lead width are available. Our lead lined drywall is extremely high quality and built using only the finest materials and craftsmanship.

Radiation shielding accessories for installation include sheet lead for backing and shielding of cut-outs for electrical, plumbing, medical gas, or other penetrations as well as corners with lead discs for screw penetrations. Lead discs may not be required as per NCRP 147.

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Lead Brick

El Dorado Metals offers a wide range of radiation shielding design services which include lead brick wall and ceiling systems complete with structural steel supports when needed. We have crews trained in the safe and quality installation of lead brick and lead plate and the associated steel structures that often are required.

Interlocking lead bricks are excellent for adding additional lead shielding to existing therapy vaults or treatment rooms as well as in new construction where available space is an issue. Lead brick can be installed in walls and ceilings where access is limited or difficult.

Our lead bricks are available in 3/4", 1", 1 1/2" and 2" thicknesses. Each lead brick features a tongue and groove design that eliminates streaming at the joints.

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Lead Sheet

Lead Sheet and Plate is available in chemical, copper bearing, and a variety of antimonial alloys.

Sizes available are up to 96" Wide x 300" OAL, with minimum thickness of .032" up to 3" available. All products conform to commercial standards of ASTM-B29; B-749; Federal QQ-L-201f; and QQ-L-171e. Required specifications must be defined at time of order for proper laboratory certification. All lead sheet and plate are protective wrapped, and banded prior to shipping.

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Lead Lined Hollow Metal Door Frames

El Dorado's lead lined door frames are manufactured from cold rolled 16 gauge steel. 14 gauge and 12 gauge lead lined door frames are available upon request. We offer either fully welded frames or knock-down frames although knock-down door frames are not recommended for use with pivot hinges. Lead lined door frames shall be suitably reinforced for closers, brackets and all other surface applied hardware. Drilling and tapping of surface hardware is typically done in the field by the installer. Our lead lined door frames are painted with a coat of rust inhibiting primer paint prior to delivery.

Lead Lined Hollow Metal Window Frames

Two Piece Slip Frames

With El Dorado two-piece slip frames, any existing rough opening can be wrapped with a lead line welded window frame that is very close in appearance to a borrowed light frame. Frames are made standard with a single rabbet (double rabbet shown in isometric drawing) and removable stop and, unlike typical telescoping view frames, are available with mullions. Frames are ordered from El Dorado using actual glass size. To calculate the rough opening necessary from the actual glass size, add 1 ¾" to the width and ¾" to the height of the glass. To calculate the overall frame dimensions from the actual glass size, add 4 ¼" to the width and 4 ¼" to the height of the glass.

Telescoping Frames

Telescoping control window frames are supplied fully lead lined with an integral all purpose telescoping section to accommodate all types of wall construction. Frames are designed to fit walls ranging from 4 inches to 6 ¼ inches thick. The standard 2 inch face x ½ inch deep face return is aesthetically pleasing and is constructed of 16 gauge steel with corners fully welded and ground smooth. Frames are ordered from El Dorado using actual glass size. To calculate the rough opening necessary from the actual glass size, add 1 ½" to the width and 1 ½" to the height of the glass. To calculate the overall frame dimensions from the actual glass size, add 4 ¼" to the width and 4 ¼" to the height of the glass.

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High Density Concrete Blocks

HD Block are made for site specific requirements for Gamma and Neutron radiation with varying densities. It's interlocking design will insure all shielding integrity is met for any new construction or room upgrades. The integration of HD Blocks with other shielding materials can be achieved dependent upon need and requirement. HD Block are ideal for:

  • HDR Rooms
  • Linear Accelerators
  • Maze Walls
  • Proton Therapy
  • Vault Construction
  • Standard Dimensions: 6" W x 6" H x 12" L
  • Standard Densities: 250 lbs/cu ft and 300 lbs/cu ft (Custom densities available)

Features and Benefits

  1. Pre-Engineered Solutions: Turnkey radiation systems available for any project.
  2. Guaranteed Performance: Block is pre-engineered, pre-fabricated, and pre-tested. The density is confirmed at the time of production before the product is shipped to the site for installation.
  3. Removable: The modular system allows you flexibility for future needs. If necessary, your shielding material can be removed, relocated, and re-installed.

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Enclosures & Shielded Doors

Enclosures can be pre-fabricated in our facility prior to installation. They consist of free standing structural steel framed panels and more than one door with optional control windows. Pre-fabricated panels sections consist of steel- lead-steel panels (per customers requirements). All edges are covered by steel, and incorporate lead joint strip. Physical dimensions can be designed and engineered per customers specifications. Radiation shielding requirements are per the architect or radiological physicists specifications.

El Dorado can fabricate the door systems that accompany our enclosures, as well as any specialty doors for other areas inside the research facility. All door systems can be engineered per customer specifications with electric or mechanical operators.

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