Cumaru

Almendrillo, Tonka, Odorata Aublet

Dipteryx odorata

DISTRIBUTION AREA

Common in humid tropical forests in transition to subtropical forests* Departments of Cochabamba, Santa Cruz, Pando and Beni

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TREE DESCRIPTION

Tree Top
Wide and open with pinnate composite leaves

Trunk
Straight. Reaches heights up to 35 m and 150 cm diameter

Bark
Coarse , scaly and thick. Brown color.

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GENERAL CHARACTERISTICS

Sapwood Color
Pale brown

Odor
Distinctive

Luster
Medium

Striped
Tenuous

Hearthwood Color
Yellow to Brown yellowish

Taste
Distinctive and astringent

Grain
interlocked

Texture
Medium to Fine

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PHYSICAL PROPERTIES

Moisture Content (Green Lumber)
44 %

Basic Density
0,8* – 0,91 g/cm3

Density
(12% MOISTURE CONTENT) 0,96* – 0,97 g/cm3

Radisal Shrinkage
5,4 – 5,5* %

Tangential Shrinkage
8,2* – 8,4 %

Volumetric Shrinkage
13,5 – 13,6* %

Rate T/R
1,5* – 1,6

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MECHANICAL RESISTANCE

Modulus of Elasticity
183 1000 Kg/cm2

Modulus of Rupture
1764 Kg/cm2

Compression Parallel tp Grain
987 – 884* Kg/cm2

Quartered Sawed
224 Kg/cm2

Lateral Hardness
1601- 1628* Kg

Impact Bending
Kg-m

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TECHNICAL CONDITIONS FOR PROCESSING

Machining
Moderately easy. Good to excellent planing, good moulding, boring, sanding, turning and finishing. Medium blunting effect*

Preservation
Impermeable

Natural Durability
Durable

Drying
Moderate drying time. There is a risk of twisting and bending*. A severe kiln schedule is recommended

End Users
Construction, Flooring, Turnery, Truck beds, Stairways, Decorative veneer, Naval construction, Tongue & groove, Doors and windows frames, Panels, Stairways