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PRODUCTS

InsuLam®

Densified Wood Laminate

InsuLam®

InsuLam® is a specialty wood composite product that combines the dielectric properties and stability of thermosetting resins with the strength and toughness of wood fibers. The result is essentially a wood reinforced plastic material whose mechanical properties can be engineered to meet the needs in a variety of applications.

InsuLam® is manufactured in two specific grades Insulam LH™ and Insulam EH™

Insulam EH™ Fully Impregnated densified Laminated Wood

Insulam EH™ is a fully impregnated densified wood product that offers high mechanical strength, high dielectric strength and dimensional stability. It is usually significantly less expensive than NEMA-grade glass laminates – and stiffer than other phenolic laminates. The veneer grain of Insulam EH™ can be arranged to put the greatest strength where it is needed. The product is easily machined and can be used in cryogenic applications. Insulam components are widely used in Electric Power equipment.

lnsulam EH has been proven in service by liquid natural gas (LNG) transportation and storage vessels. Successful land and sea applica-tions include tank sealing rings, pipe saddles, tank supports, keys and pitch-and-roll chocks.

Insulam LH™ Non Impregnated Densified Laminated wood. (IEC 61061)

Insulam LH™ is non-impregnated product which is manufactured to comply with DIN 7707, and IEC 61061. This is used primarily for structural electrical components in oil- insulated power transformers. The Major uses of Insulam LH™ are in pressure rings and blocking for power transformers.

Rings are manufactured in 2 densities LH77P72(IEC TYPE T4R), and LH77P60(IEC type T2R)

Product Advantages

InsuLam® offers high mechanical, thermal and dielectric strength as well as dimensional stability. The veneer grain can be arranged and pressed to put the greatest strength where it is needed. The density and impregnation levels can also be varied to match the desired properties for the application. The product is easily machined with good dimensional tolerances, and it is compatible with most paint, varnish and transformer oil.

  Thermal Strength

  Dielectric Strength

  Dimensional Stability

  Versatile Density & Pregnation Level

Common Areas of Application

Transformer Applications

  • Top & Bottom Coil Clamping Rings
  • Yolk Beams
  • Shield Rings
  • Lead & Cleat Structures
  • Step & Pressure Blocks
  • Block & Coil Supports
  • Spacers and Fasteners

Transportation

  • Traction Transformer Beams

Cryogenic Insulation (LNG, LPG, ethylene)

  • Cryogenic Tank Supports
  • Cryogenic Pipe Supports
  • LNG Fuel Tanks
  • Anti-Pitching Chocks
  • On-Board Sliding and Fixed Blocks
Technical Data

 InsuLam

WHY CHOOSE CK COMPOSTIES

Over 65 Years of Experience

At CK Composites, our engineers and technicians are able to help customers in a wide range of industries solve problem applications using our line of custom composite solutions.

Made in the USA

Since the 1950's, we have been supporting the electrical, oil and gas, medical, defense, transportation and waste water industries with proven, innovative composites and engineering solutions.

Quality Assurance

Quality assurance procedures include testing and inspection of incoming raw materials, in-process inspection and both destructive and non-destructive material testing.

Precision Machining

We have a complete machine shop with precision milling, routing, turning and assembly capabilities. We ensure efficiently produce parts with the proper fit and finish required. 

Insulam

Application Examples

InsuLam® Tangential Pressure Rings

InsuLam® LH77, tangential grade, is the engineer’s best tool to balance the necessary mechanical strength demanded by the application with the cost benefit of a smaller core window. The improved stiffness and flexural strength are beneficial in preventing coil movement during short circuit. 

InsuLam® Spacers + Fasteners

InsuLam® fasteners are widely used in transformer and other electrical equipment due to its good mechanical and impact strength combined with its superior electrical insulating properties. CK Composites can manufacture special sizes of threaded rods and nuts upon request.

InsuLam® Cryogenic Pipe Support

InsuLam® EH has been proven in service by liquid natural gas (LNG) transportation and storage vessels. Successful land and sea applications include tank sealing rings, pipe saddles, tank supports, keys and pitch-and-roll chocks. 

InsuLam® Cryogenic Tank Support

InsuLam® EH has been proven in service by liquid natural gas (LNG) transportation and storage vessels. Successful land and sea applications include tank sealing rings, pipe saddles, tank supports, keys and pitch-and-roll chocks.

InsuLam® Traction Transformer Beams

Traction transformer beams for transportation and rail systems.

InsuLam® Dowel Rods

InsuLam® dowel rods can also be manufactured to meet the needs of the industry. 

InsuLam® Static Spacers

InsuLam® electrical static spacers for train and rail systems.

Insulam

Manufacturing Process

The process begins with select thin red beech veneers from Europe where the wood is of the finest and most consistent quality. Depending on the desired properties, the veneers are either impregnated or surface coated with a specially formulated electrical grade phenolic resin. Following resin treatment, the veneers are dried or “B-staged” then arranged and stacked into the defined configuration and thickness. Lamination, densification, and curing are accomplished simultaneously in massive presses under high pressure and heat. After the pressing cycle, the material may be precision machined, assembled and finished per the requirements of the application.