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JabotyJabotyJaboty
Jaboty (Erisma uncinatum)

Family: Vochysiaceae

Common names: Cambara, Cedrinho, Couaie, Feli kouali, Felli kouali, Jaboti, Jaboty, Jaboty da terra firma, Kokopaie, Leteballibelero, Manonti kaouali, Manonti kouali, Mureillo, Quariuba, Quaruba vermelha, Quarubarana, Quarubatinga, Singri-kwari, Singrie kwarie

Distributed in: Brazil, French Guiana, Guyana, Suriname, Venezuela (Central America, Latin America)

Distribution overview: Humid, sub-tropical and tropical forests of Santa Cruz, Beni and Pando in Bolivia. May also be present in the Guianas, Surinam and Venezuela.

Common uses: Bedroom suites, Boat building, Boxes and crates, Cabinetmaking, Chairs, Chests, Concrete formwork, Decorative plywood, Desks, Fine furniture, Fuelwood, Furniture , Furniture, Joinery, Living-room suites, Moldings, Office furniture, Packing cases, Plywood, Rustic furniture, Shipbuilding, Tables , Utility furniture, Wardrobes

Product sources: The ITTO reports that the species is an important source of timber. The timber is exported regularly, and is imported from Brazil into China.

Environment profile: Status has not been officially assessed

Tree size: Tree height is 40-50 m

Colors: the heart isReddish brown, Yellowand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMedium to coarseand the lusterLow

Natural durability: Susceptible to termite attack, Very durable

Odor: No specific smell or taste

Silica Content: Slight

Kiln Schedules: Kiln Drying Rate (in days) is fairly rapid

Kiln Drying Rate: Naturally dries slowly

Drying Defects: Moderate surface checking, Splitting

Ease of Drying: Slowly

Tree Identification: Bole/stem form is buttressed

Blunting Effect: Slight effect

Boring: Easy

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Good properties

Nailing: Easy to nail, Holds nails well

Planing: good

Resistance to Impregnation: Response to treatment varies from moderate to poor

Response to hand tools: Fairly Difficult to Difficult to Work

Sanding: Very good characteristics

Veneering qualities: Suitable for peeling, Suitable for slicing

Screwing: Easy to screw ;

Painting: Good; Polishing: Good; Staining: Finish is generally good ; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,42 0,51
Density 592 kg/m3
Bending Strength 677 1024 kg/cm2
Crushing Strength 30 55 kg/cm2
Hardness 426 kg
Impact Strength cm
Shearing Strength 71 kg/cm2
Stiffness 102 120 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 4 %
Weight 576 496 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9638 14575 psi
Crushing Strength 432 795 psi
Density 37 lbs/ft3
Hardness 941 lbs
Maximum Crushing Strength 4714 7774 psi
Shearing Strength 1019 psi
Stiffness 1457 1711 1000 psi
Specific Gravity 0.42 0.51
Weight 36 31 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 13 %

Density (dry weight) = 38-45 lbs/cu. ft.
Density (dry weight) = 31-37 lbs/cu. ft.
Bending strength (MOR) = low
Shrinkage, Tangential = large
Shrinkage, Radial = fairly large
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = medium
Max. crushing strength = high
Bending strength (MOR) = medium
Bending strength (MOR) = high
Shrinkage, Tangential = moderate
Shrinkage, Tangential = fairly large
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shearing strength (parallel to grain) = very low
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = low
Modulus of Elasticity (stiffness) = high
Hardness (side grain) = soft
Bending strength (MOR) = very high

Bois et Forets des Tropiques,1984,Jaboty - Erisma uncinatum,Bois et Forets des Tropiques Vol. 204 p.57-60Boone, R.S., C.J. Kozlik, P.J. Bois, E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Hardwoods - Temperate and Tropical. USDA, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Chichignoud, M., G. Deon, P. Detienne, B. Parant, and P. Vantomme.1990.Tropical Timber Atlas of Latin America.International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentI.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer CuttingSallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TTakahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Teixeira, D. E., M. A. E. Santana and M. Rabelo de Souza.1988. Amazonian Timbers for the International Market.ITTO Technical Series 1.Brazilian Institute for Forestry Development, Brazil.
*Come interpretare i dati (manleva su eventuali imprecisioni)