SAPELLI (Entandrophragma cylindricum)
Nome comercial
Sapelli
Nome científico (autor)
Entandrophragma cylindricum Sprague
Família
MELIACEAE
Nomes comuns
Aboudikro (Côte d`Ivoire); Sapelli-Mahogani (Germany); M'boyo (Central African Republic); West African cedar; Ubilesan; Tshimaye noir; Scented mahogany; Sapeli; Sapele wood; Sapele mahogany; Penkua; Owuru; Odupon; Miovu; Lotue; Lifuti; Liboyo; Kwabohoro; Gold Coast cedar; Dilolo; Cedar; Bubussu; Botsife; Bibitu; Atore; Acajou sapelle; Aboudikro; Libuyu (Zaire); Sapelli (Cameroon); Sapelli-mahagoni (Germany); Sapele (United Kingdom); Muyovu (Uganda); Undianuno (Congo); Undianuno (Angola); Lifaki (Zaire); M`boyo (Central African Republic); Assie-sapelli (Cameroon); Sapele (Nigeria); Penkwa (Ghana)
Nome científico sinônimo (autor
Pseudocedrela cylindrica Sprague; Entandrophragma tomentosum A. Chev. ex Hutch. & Dalz.; Entandrophragma lebrunii Staner
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The tree may reach more than 50 m. The bole is straight, cylindrical and straight to 32 m in length. The trunk diameter can attain 200 cm over the broad, low buttresses. Occasionally the buttresses are absent. Log is banned for international trading.(Came
Habitat natural
Entandrophragma cylindricum occurs in semi-evergreen and evergreen forests. It is reported on rocky ground, in lake-shore forests, deciduous forests, semi-deciduous and almost dry zones and transitional formations.
Distribuição natural
West, Central and East Africa, from Cote d`Ivoire to Uganda.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Brown-colored deposits in heartwood vessels. Non-vestured pits. Vessels per mm2 10 to 20 (abundant). Simple perforation p Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma in discontinuous tangential lines. Occasionally axial parenchyma storied. Prismatic crystals in non-chambered axial parenchy 4 to 10 rays per mm (medium). Occasionally rays storied. Rays 1 to 4 seriate. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with simple to minutely bordered pits.
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Foto de madeira macroscópica (tangencial)
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Foto da secção transversal microscopica
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
Light and pleasant odor.
Cor
The sapwood is pinkish grey to whitish, it has a thickness of 7 to 10 cm. The heartwood is red brown to purplish brown, it is clearly demarcated. The silver figure is fine, ripple marks.
Indice de cor
4
Grã
The grain is slightly but systematically interlocked; special care is needed when drying because of frequent risks of distortion.
Veios ou desenhos na superfície
The texture varies from fine to medium.
Brilho
The wood is described as low in luster.
DURABILIDADE NATURAL
Moderately durable to decay. Without preservative treatment, this species can be used only under risk of occasional re-humidification. It is not suited for uses with risks of permanent or long-lasting humidification. Moderately resistant to termites attack
Indice de durabilidade natural
3
Tensões internas do crescimento
Residual stresses are reported to be absent.
Conteúdo de sílica
Silica Content: This timber is reported to have a negligible silica content. Silica contents over 0.05% may affect wood processing. Silica Value: 0
Tratamento preservativo
Difficult to treat with only a low penetration of the preservative products.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.62
Densidade seca ao ar 12% (g/cm³)
0.69
Contração Tangencial Total (Saturado até peso seco) (%)
7.2
Contração Radial Total (Saturado até peso seco) (%)
5.0
Defeitos causados pela secagem
Ease of Drying: Terap seasons rapidly to fairly slowly. It takes 1 to 3 months to dry 15 mm thick boards to air-dry condition. Drying Defects: It has a moderate to slight tendency to bow, cup and check.
Programa de secagem recomendável
FR-9
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.4
Programa de secagem detalhado
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1043
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
142334
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
630
Resistência a compressão perpendicular as fibras a 12% (kgf/cm²)
85
Cisalhamento radial a 12% (kgf/cm²)
78
Dureza Janka a 12% (perpendicular) (kgf)
592
Dureza Janka a 12% (paralela) (kgf)
689
TRABALHABILIDADE
Serrar ou Cortar
It is easy to saw.
Desdobro da tora em torno para lâminas
Suitable for slicing, also suitable for peeling if treated.
Desdobro da tora em faqueadeira para lâminas
Suitable for slicing, also suitable for peeling if treated.
Desgaste de ferramentas
Slight blunting effect; ordinary tools can be used for sawing and machining.
Aspectos do processamento em máquinas
Machining of this species is reportedly easy.
Aplainamento
Moderately easy; tools must be cautiously sharpened.
Aplicação para molduras
Rather difficult; special tools are needed.
Torneamento
30
Furação
Rather difficult; special tools are needed.
Fresagem_ranhura_canais
Rather difficult; special tools are needed.
Comportamento na aplicação de pregos
Pre-boring is necessary.
Colagem
Difficult to glue because of the extracts content.
Lixamento
Difficult to obtain very good results because of interlocked grain.
Operação de lustre da superfície (brilho)
Can be polished without surface preparation.
Steam Bending
Steam bending is difficult.
Trabalhabilidade com ferramentas manuais
No particular problems.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, faces, Decorative veneer, TURNING, ornaments, turned furniture, NAVAL CONSTRUCTION, boat deck, port storage
CASAS
- 10 - Silica in Timbers
Vigas
- 11 - Prospect: The wood database
Vigotas
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Tábuas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Pisos
- 14 - Handbook of Hardwoods
Parquets
- 15 - Empire Timbers
Marcos de portas
- 16 - Woods of the World
Degraus de escada
- 17 - Tree Conservation Database
Painéis
- 18 - W3TROPICOS Missouri Botanical Garden
Acessórios de madeira
- 19 - Silica in Timbers
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Móveis finos
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Gabinetes
- 24 - Empire Timbers
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas de superfície das chapas
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Lâminas decorativas
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneamento
- 30 - Embassy of Honduras in Japan
Artigos torneados
- 31 - Embassy of Colombia in Japan
Artigos torneados
- 32 - Embassy of Cote d`Ivoire in Japan
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
Coberta para barcos
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port Storage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
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