Banga wanga (Amblygonocarpus andongensis)
Family: Leguminosae
Common names: Banga wanga, Bangawanga, Mecuria, Metindire, Mjerigwe, Mubaimbai, Mubayibayi, Mululwe, Munjoujota, Munyenye, Mutiria, Muwaka, Muyu, Scotsmans rattle, Umnonjwana
Distributed in: Angola, Benin, Botswana, Ghana, Malawi, Mozambique, Nigeria, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe (Africa)
Common uses: Agricultural implements, Boat building (general), Carvings, Flooring, Flooring: commercial heavy traffic, Flooring: industrial heavy traffic, Furniture, Heavy construction, Joinery, Light construction, Poles, Railroad ties, Sporting Goods, Turnery, Vats, Vehicle parts, Veneer: decorative
Product sources: The timber is commercially available on the South-western pacific region market, but it appears to be traded in rather small quantities on a world-wide basis. A limited amount of White cheesewood has been salvaged from the Fairchild Tropical Gardens in Florida after the 1993 hurricane 'Andrew' destruction.White cheesewood is often sold in mixed consignments with another very similar species in the Alstonia genus, A. spatulata . The timber has been formerly used for boxes to ship bulk tea from Sri-lanka.
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isRed, Reddish brownand the sapwoodWhite to yellow, Yellow.The grain isWeak figure, the textureMediumand the lusterMedium
Natural durability: Very durable, Very durable
Kiln Schedules: Uk=B US=T2C2/T2C1 Fr=2
Kiln Drying Rate: Naturally dries slowly
Drying Defects: Checking, Moderate surface checking
Ease of Drying: Slowly
Tree Identification: Bole/stem form is not buttressed
Blunting Effect: High to severe
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Fairly Easy to Very Easy
Nailing: Pre-Boring Recommended, Pre-boring recommended
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood has low permeability
Response to hand tools: Variable qualities
Polishing: Very Good to Excellent; Varnishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
977 |
kg/m3 |
Bending Strength |
804 |
1248 |
kg/cm2 |
Crushing Strength |
485 |
699 |
kg/cm2 |
Hardness |
|
1333 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
177 |
kg/cm2 |
Stiffness |
134 |
155 |
1000 kg/cm2 |
Tangential Shrinkage |
4 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
961 |
801 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 11442 | 17761 | psi | Density | | 61 | lbs/ft3 | Hardness | | 2940 | lbs | Maximum Crushing Strength | 6899 | 9945 | psi | Shearing Strength | | 2525 | psi | Stiffness | 1916 | 2208 | 1000 psi | Weight | 60 | 50 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 4 | | % | Volumetric Shrinkage | 6 | | % | |
Density (dry Weight) = >50 lbs/cu. ft Shrinkage, Tangential = very small Shrinkage, Radial = small Shrinkage, Radial = very small Max. crushing strength = high Shrinkage, Volumetric = small Shrinkage, Tangential = small Shearing strength (parallel to grain) = medium Shearing strength (parallel to grain) = high Modulus of Elasticity = moderate Hardness (side grain) = Hard Bending strength (MOR) = medium Bending strength (MOR) = high
Banks, C.H. and J.P. Schoeman. 1963. Railway Sleeper and Crossing Timbers. Bulletin No. 41, Republic of South Africa. The Government Printer, Pretoria, South Africa.Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. MoshiDalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the ColoniesEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaFanshawe, D.B.,1962,Fifty Common Trees of Northern Rhodesia,Natural Resources Board and Forestry Department, NdolaFarmer, R.H.,1972,Handbook of Hardwoods,HMSOFerreirinha, M.P.,1955,Catalogo des Madeiras de Mocambique (pt 1,Min. do Ultramar Junta Invest. do Ultranar Memorias Serie Botanica, 2Ferreirinha, M.P.,1956,Madeiras do Ultramar Portugues,Garcia de Orta Revista da Junta Missoes Geog...,4(1,pp95-6Forest Products Research Laboratory, U.K.,1954,Hardwoods for Industrial Flooring,Forest Products Research Laboratory, Princes Risborough, Leaflet, No.48Fortin, Y., Poliquin, J.,1976,Natural Durability and Preservation of 100 Tropical African Woods,International Development Research Centre, CanadaFrance - C.T.F.T.,1962,Banga-Wanga,C.T.F.T.,Information Technique,No.167Goldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonMurira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Pardy, A.A.,1954,Notes on Indigenous Trees and Shrubs of S. Rhodesia - Androstachys,johnsonii (Prain,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1751Pardy, A.A.,1956,Notes on Indigenous Trees and Shrubs of S. Rhodesia,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1897Storrs, A.E.G.,1979,Know your Trees - Some of the Common Trees found in Zambia,Zambia Forestry Department, NdolaTanzania Forest Department,1960,The Natural Durability of Local Timbers,Tanzanian Forest Dept. Tech. Note,No.14Tanzania Forest Department,1966,Flooring Timbers,Tanzania Forest Div. Util. Sec. Moshi - Timbers of TanganyikaTanzania Forest Division,1967,The Weights and Shrinkage of some Local Timbers,Tanzania Forest Div. Util. Sect. Technical Note,No.25White, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. LondonZambia Forest Department,1979,Timbers of Zambia Adina microcephala and Amblygonocarpus andongensis,Zambia Forest Department, Division of Forest Products Research, Timbers of,Zambia Technical Note no.5/79
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