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Ditta 5
Indirizzo: via dei platani 4 liguria
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Banke
Banke (Tessmannia africana)

Family: Caesalpiniaceae

Common names: Banke, Kamalufu, Kasase-sase, Kasasesase, Musase, Nkaga, Nom esingang, Waka, Wamba kakele

Distributed in: Cameroon, Congo, Gabon (Africa)

Common uses: Agricultural implements, Boat building (general), Decks, Flooring, Handles: woodworking tools, Heavy construction, Joinery, Millwork, Mine timbers, Posts, Railroad ties, Vehicle parts

Tree size: Tree height is 30-40 m

Colors: the heart isReddish brownand the sapwoodDifferent than heartwood, White to yellow.The grain isStraight, the textureMedium

Natural durability: Susceptible to insect attack, Very durable

Drying Defects: Slight end splitting

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as satisfactory

Cutting Resistance: Cutting Resistance with green wood is difficult

Gluing: Easy to glue

Nailing: Easy to nail

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is moderately resistant

Response to hand tools: Easy to machine


Polishing: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 929 kg/m3
Bending Strength 1203 1734 kg/cm2
Crushing Strength 485 699 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 913 833 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 17122 24667 psi
Density 58 lbs/ft3
Maximum Crushing Strength 6899 9945 psi
Weight 57 52 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 8 %

Bending strength (MOR) = very high
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Max. crushing strength = high
Density (dry weight) = >75 lbs/cu. ft
Density (dry weight) = 67-75 lbs/cu.ft
Density (dry weight) = 61-67 lbs/cu. ft
Density (dry weight) = 53-60 lbs/cu. ft
Shrinkage, Tangential = small
Bending strength (MOR) = medium
Bending strength (MOR) = high

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchErfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentFouarge, J.,1953,Bois du Congo,I.N.E.A.C.Ghosh, D.P., Gupta, P.G.,1969,Influence of steaming on subsequent drying of green and refractory,hardwood,Indian Forestry Bulletin (N.S.) wood seasoning No. 257, Dehra Dun, IndiaHughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished dataLebacq, L., Dechamps, R.,1967,Contribution a un Inventaire de Forets du Nord-kasai,Musee Royal de L'Afrique Centrale Belgium Annals Series 8 No.5Pieters, A.,1977,Essences Forestieres du Zaire,R.U.G. Gent BelguimSaint-Aubin, G. de,1963,La Foret du Gabon,CTFT Publ., No.21
*Come interpretare i dati (manleva su eventuali imprecisioni)