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MACHANG (Mangifera laurina)
Trade Name
Machang
Scientific Name
Mangifera laurina Blume
Family
ANACARDIACEAE
Common Names
Mangga parih (Indonesia); Mamuang-kaleng (Thailand); Thayet-pya (Myanmar); Apali (Philippines); Mangga aer (Malaysia)
Scientific Name Synonyms
Mangifera sumatrana Miq.; Mangifera parih Miq.; Mangifera longipes Griffith
Description Of The Tree
Botanical Description
It is a medium-sized to fairly large tree up to 36 m tall, with boles up to 100 cm diameter.
Natural Habitat
Mangifera laurina occurs in lowland evergreen forests up to 150 m of altitude.
Plantations Available?
It is cultivated more for its fruits.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Tangential diameter of vessel lumina 100 micras or less (very small). Tyloses common. Vessels per mm2 more than 20 (very abundant). Vessel-ray pits reticulate and/or foraminate. Axial parenchyma bands more than 3 cells wide. 4 to 10 rays per mm (medium). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with distinctly bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is pale yellowish-brown or pinkish-brown to dark pinkish-brown or reddish-brown. The sapwood is usually indistinctly demarcated from the heartwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is straight to interlocked or wavy.
Texture
The texture ranges from moderately fine to moderately coarse.
Luster
Sometimes the heartwood has silvery luster.
Natural Durability
The wood is classified as non-durable under exposed conditions or in contact with the ground.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Internal Growth Stresses
Residual stresses present in the wood may cause defects while processing the timber.
Resistance To Impregnation
This timber can be impregnated without difficulty.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.57
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.63
Total shrinkage Tangential (Saturated to 0%MC) (%)
5.7
Total shrinkage Radial (Saturated to 0%MC) (%)
3.4
Drying Defects
Ease of Drying: Air seasoning is reported to be good but slow. Drying Defects: Little tendency to warp and end splitting is reported. Kiln Schedules: Schedule recommended for Sepetir.
Recommended Dry Kiln Schedule
UK-F
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.7
Wood Chemical Properties
Wood Mechanical Properties
Compression parallel to fiber 12%MC (kgf/cm²)
356
Shear strength radial 12%MC (kgf/cm²)
86
Workability
Sawing
The wood saws well, but excessive tension wood may cause jamming and extreme wooliness in some logs.
Rotary Veneer Cutting
This species is reported to be interesting for lamination, but Machang veneer has a tendency to curl and wrinkle during drying.
Sliced Veneer
This species is reported to be interesting for lamination, but Machang veneer has a tendency to curl and wrinkle during drying.
Machining
The response of this species to machining operations is good to fair. It gives rough surfaces in the radial face.
Planing
Planing operations are rather easy, but often rough radial surfaces are reported.
Moulding
Molding of this species is reported to be easy.
Boring
Boring operations are rated as fair to difficult.
Mortising
Mortising operations are rather easy.
Nailing
Nailing is reported as easy.
Gluing
Gluing behavior is reportedly good.
Finishing
Filling is required.
Polishing
Filling is required.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, flooring, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, OTHER AND MUSICAL INSTRUMENTS, moldings
General Housing
- 10 - Silica in Timbers
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
- 14 - Handbook of Hardwoods
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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