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DORMILóN (Pentaclethra macroloba)
Nombre comercial
Dormilón
Nombre científico (con autor)
Pentaclethra macroloba (Willd.) Kuntze
Familia
LEGUMINOSAE
Nombres Comunes
Wild tamarind; Sangredo fabo; Pracachy; Paroa-caxy; Parana-cachy; Palo de aceite; Mulato; Kroebara; Koorooballi; Koeroeballi; Koeroebahara; Gavilan; Gabilan; Fine-leaf; Gavilán (Costa Rica); Bois Mulatre (Trinidad & Tobago); Pracaxy (Brazil); Carbonero (Venezuela); Aserrín (Colombia); Capitancillo (Colombia); Dormilón (Colombia); Gavilán (Nicaragua); Palo Mulato (Venezuela); Opagga; Koroballi; Ataka; Oil Bean; Apara (Brazil); Trysil
Nombres científicos sinónimos (con autores)
Mimosa macroloba (Willd.) Poir.; Cailliea macrostachya Steud.; Acacia macroloba Willd.; Acacia aspidioides G. Meyer
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The trees are reported to reach heights of 24 m in the average, with trunk diameters of 60 cm over the buttresses. They develop straight, or sometimes fluted, boles that are up to 10 m long.
Hábitat natural
Pentaclethra macroloba is found along the rivers and streams, and also in low hills.
Distribución natural
This species is reported to be common in the tropical rain forests of Central America and northern South America.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 150 to 200 micras (medium). Occasionally vessels with colored deposits. White deposits in heartwood vessels. Occasionally vessels per mm2 less than 6. Simp Axial parenchyma in marginal or in seemingly marginal bands. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma lozenge-aliform. Occasionally axial parenchy Occasionally rays more than 10 per mm (abundant). Rays exclusively uniseriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
It is reported to have a characteristic odor.
Color
The sapwood is pink, the heartwood gradually changes into reddish brown.
Grano
The direction of the grain is straight to slightly interlocked.
Veta
The texture of this species is reported to vary from medium to coarse.
Brillo
This species has moderate to high luster.
Durabilidad Natural
This species is resistant to termites attack and it is not affected by wood staining fungi.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
2
Dificultad para impregnar
It is a permeable wood, with good preservatives retention.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.72
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.81
Contracción Tangencial Total (Saturado hasta anhidro) (%)
8.5
Contracción Radial Total (Saturado hasta anhidro) (%)
4.5
Defectos por secado
Ease of Drying: The rate of drying is reported to be slow to moderate.
Calendario de Secado
JUNAC-C
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.9
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1265
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
162000
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
737
Cizallamiento radial CH12% (kgf/cm²)
141
Dureza Janka (lados) CH12% (kgf)
738
Dureza Janka (extremos) CH12% (kgf)
997
TRABAJABILIDAD
Aserrado
Wood of this species is easy to cut.
Maquinado general
Machining operations are fair.
Cepillado
Planing is reported to be difficult.
Moldurado
It is easy to mold.
Taladrado
Boring is reported to be easy.
Escopleado, caja y espiga
Mortising operations are rather easy.
Clavado
Nailing properties are fair.
Lijado
This species is reported to be easy to sand.
Acabado
It has a good finishing.
Sacar lustre
It has a good polishing.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, beams, joists, boards, fittings, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING
VIVIENDA GENERAL
- 10 - Silica in Timbers
vigas
- 11 - Prospect: The wood database
Viguetas
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Tablas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Accesorios de madera
- 19 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
PALLETS_EMBALAJES
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
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