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Cadefor ONG Bolivia - Amazonic Center for Sustainable Forest Enterprise

MARA MACHO Download

Description:

MARA MACHO

SPECIES IDENTIFICATION
Scientific name Cedrelinga catenaeformis Ducke
Family Mimosoideae
Commercial name Tornillo, Cedro Rana
Other names Cedrarana (Brazil), Achapo (Colombia), Seique, Chuncho (Ecuador), Tornillo* (Peru)
Distribution area Cedrarana (Brazil), Achapo (Colombia), Seique, Chuncho (Ecuador), Tornillo* (Peru)
Region and frecuency Very frequent in the Amazonia
Commercial group
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TREE DESCRIPTION
Treetop Round and open, composite, bi pinnate leaves
Trunc Straight and cylindrical with commercial heights up to 50 m*
Bark Dark brown color, corrugated

MARA MACHO -  Tornillo, Cedro Rana: clic to enlarge

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GENERAL FEATURES
Sapwood color Pink Heartwood color Redish-Brown
Odor Peculiar Taste Indistinct
Luster Medium to bright Grain Straight
Stripped Dark vessels lines Texture Coarse
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PHYSICAL PROPERTIES
Moisture content (Green lumber) 83 %
Basic density 0,44 g/cm3
Density (12% moisture content) 0,55 g/cm3
Radial shrinkage 3,2 %
Tangencial shrinkage 6,9 %
Volumetric shrinkage 9,9 %
Rate T/R 2,2
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MECHANICAL RESISTANCE
Modulus of elasticity 99 x 1000 x 1000 Kg/cm2
Modulus of rupture 693 Kg/cm2
Compression paralell to grain 413 Kg/cm2
Quarteredsawed 87 Kg/cm2
Lateral hardness 373 Kg
Impact bending 2,88 Kg-m
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TECHNICAL CONDITIONS FOR PROCESSING
Machining Easy machining. Good planing, moulding, sanding and boring*. Regular turning*. Low blunting effect*. Good finishing.
Preservation Rather permeable
Natural durability Low durability*
Drying Air drying and kiln drying is rather quick, with tendency to twist and curve.
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END USES
Doors
Windows
Furniture
Veneer
Construction

Source: Información técnica para el procesamiento industrial de 134 especies maderables de Bolivia
Proyecto FAO-GCP/BOL/028/NET

Submitted By:
Administrator (admin)
Submitted On:
23 Jul 2010
File Size:
66.2 KB
Downloads:
25
File Date:
22 Jul 2010