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MAFAMUTI (Newtonia glandulifera)
Nombre comercial
Mafamuti
Nombre científico (con autor)
Newtonia glandulifera Gilbert et Boutique
Familia
LEGUMINOSAE
Nombres Comunes
Lokundu (Zaire); N'kasa (Congo); Mukali (Congo); Kassa (Congo); Mpewere (Uganda); East African Newtonia (Uganda); Mkufi (Tanzania); East African Newtonia (Tanzania); East African Newtonia (Kenya); East African Newtonia (Ethiopia); Mafamuti (Mozambique); Mukali (Angola)
Nombres científicos sinónimos (con autores)
Piptadenia glandulifera Pellegr.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The tree reaches a height of 43 m. The bole is cylindrical, straight and up to 26 m in length. The trunk diameter attains 170 up to 200 cm over the short buttresses.
Hábitat natural
Newtonia glandulifera occurs in areas of medium to high rainfall, often on sandy soil.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Vestured pits. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Occasionally septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The sapwood is paler than the heartwood, it has a thickness of 5 to 7.5 cm. The heartwood is red-brown, it is clearly demarcated.
Grano
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Veta
This species is usually reported to have a fine texture.
Brillo
Luster is usually low.
Durabilidad Natural
Not durable; important risks of decay attacks at any processing step, from logs up to final products. It must receive preservative treatment. Sensible to termites attack. The heartwood is sensible to Lyctus attacks.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
5
Internal growth stresses
Residual stresses present in the wood may cause defects while processing the timber.
Dificultad para impregnar
Nearly impossible to treat with a too much low penetration of the preservative substances.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.68
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.76
Defectos por secado
Ease of Drying: Drying is rather slow and sometimes difficult to perform.
Calendario de Secado
FR-10
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1203
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
724
Resistencia a la compresión perpendicular a la fibra CH12% (kgf/cm²)
102
Dureza Janka (lados) CH12% (kgf)
720
Dureza Janka (extremos) CH12% (kgf)
805
TRABAJABILIDAD
Aserrado
It is moderately easy to saw.
Corte de chapa rotativa
Suitable for slicing, also suitable for peeling if treated.
Chapa tranchada
Suitable for slicing, also suitable for peeling if treated.
Pérdida de filo_romado
Slight blunting effect; ordinary tools can be used for sawing and machining.
Maquinado general
Machining of this species is reportedly easy.
Cepillado
Moderately easy; tools must be cautiously sharpened.
Moldurado
Easy; no particular problems.
Taladrado
Easy; no particular problems.
Escopleado, caja y espiga
Easy; no particular problems.
Clavado
Pre-boring is necessary.
Encolado
Glues well if basic gluing technical rules are followed.
Lijado
Easy to perform; it gives good results.
Sacar lustre
Can be polished without surface preparation.
Facilidad para herramientas manuales
Working with hand tools is difficult.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, parquet, fittings, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, SPORTS, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, OTHER AND MUSICAL INSTRUMENTS, handicrafts, scale model
VIVIENDA GENERAL
- 10 - Silica in Timbers
Parquet
- 15 - Empire Timbers
Accesorios de madera
- 19 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Gabinetes
- 24 - Empire Timbers
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
IMPLEMENTOS DEPORTIVOS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Mangos agrícolas
- 44 - Atlas of Peruvian Woods
Carrocería de camión
- 53 - Timbers of the New World
Pisos de vagones_contenedores
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
artesanía
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Maquetas
- 83 - Algunas caracteristicas fisicomecanicas de la madera de tres especies de la cordillera NeoVolcanica
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