Cumaru

Almendrillo, Tonka, Odorata Aublet

Dipteryx odorata

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DISTRIBUTION AREA

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

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.

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

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

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

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