Ranprex® High-Tech Laminated Densified Wood
The Gund Company is proudly the sole distribution channel for RANPREX® in North America.
Ranprex laminated wood insulation for electromechanical applications is extensively used in the oil-filled power and distribution transformer industry. The material complies with the norms DIN7707 & IEC61061, and common applications for components are:
- Clamping or pressure rings
- Core blocks
- Step blocks
- Cooling plates
- Lead and cleat structures
- Pressure beams
- Fasteners (threaded rod & nuts)
- Round spacers
- Coil supports
- Shield rings

Rancan is made in Italy through a process of pressing red beech veneers that incorporates a patented resin at a pre-determined temperature. Through its high-quality products and close work with the major transformer OEMs in the world, Rancan has become the largest producer of laminate densified wood for oil-filled transformer applications.
Ranprex laminated wood offers the following advantages:
- Excellent dielectric properties
- High oil absorption
- High mechanical properties
- Suitability to work at high temperatures
- Dimensional stability
- Density selections according to your needs
- Lower cost than other materials used for similar applications
Ranprex material is available in the following grades:
Parallel construction:
P1R / KP20210 / ML22EL
P2R / KP20212 / ML20EL
P4R / KP20214 / ML15EL
Crosswise construction:
C1R / KP20220 / ML22E
C2R / KP20222 / ML20E
C4R / KP20224 / ML15E
Tangential construction:
T2R / KP20242 / ML20ET
T4R / KP20244 / ML15ET



Please feel free to review the additional information below and let us know if we can help answer material property questions or provide an application-specific quote. Thanks in advance for the opportunity to earn your business.