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KEKATONG (Cynometra ramiflora)
Trade Name
Kekatong
Scientific Name
Cynometra ramiflora Miq.
Family
LEGUMINOSAE
Common Names
Yeminga; Shingra; Shingar; Pamortisan; Oringen; Naipudukan; Myinkabin; Myinka; Myin-ka; Mahuka; Kekatong; Katong laut; Kanakamara; Kanaka; Irudhu; Irippa; Iripa; Irapu; Hambabalanak; Gal mendora; Balitbitan; Mangkha (Thailand); Katong (Malaysia); Belangkan (Malaysia); Oringon (Philippines); Kankaton (Malaysia); Kenkaton (Malaysia); Katong (Philippines); Balibitan (Philippines); Dila-dila (Philippines); Nam-nam (Philippines)
Description Of The Tree
Botanical Description
It is a small to medium-sized tree up to 30 m tall. The bole is up to 60 cm in diameter and sometimes with buttresses of up to 90 cm high.
Natural Habitat
Cynometra ramiflora is a typical element in the fringe of mangrove forests, but it is also found in the savanna forests, up to 500 m of altitude.
Wood Identification
Anatomic Description Of Wood
Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits small, 7 micras or less. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma confluent. 3 to 4 cells per parenchyma strand. Axial parenchyma bands more than 3 cells wide. Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). 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 squa
Availability
Cites Status
Unrestricted
General Wood Description
Odor
No odor or taste is recorded.
Color
The sapwood is somewhat lighter brown hue. The heartwood varies from chocolate brown to red-brown to wine color, traversed with crowded light-colored stripes.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
It is mostly straight to slightly or deeply interlocked.
Texture
The texture is moderately fine, its vessels are blocked with tyloses, often uneven.
Luster
Planed surfaces are generally not lustrous
Natural Durability
It is durable and resistant to fungi and insect attack.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Silica Content
Silica Content: Non-siliceous. Silica Value: 0
Resistance To Impregnation
It is very resistant to preservative treatment.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.79
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.90
Total shrinkage Tangential (Saturated to 0%MC) (%)
8.5
Total shrinkage Radial (Saturated to 0%MC) (%)
4.4
Drying Defects
Ease of Drying: Drying is reported to be slow but the properties are good. Drying Defects: Risk of warping is reported in thin stock. Kiln Schedules: Schedule suggested for Darah-darah
Recommended Dry Kiln Schedule
UK-B; US-T6-D4
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.9
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1318
Stiffness (MOE) 12%MC (kgf/cm²)
174348
Compression parallel to fiber 12%MC (kgf/cm²)
655
Workability
Sawing
The wood is easy to saw but difficult to cross cut. In air dry condition it is difficult to saw with ordinary saws but chromium plated teeth it gives good results.
Rotary Veneer Cutting
Slicing is only possible after intensive steaming. It peels satisfactorily, but the often irregular shape of the logs and their high density make the timber unsuitable for plywood.
Sliced Veneer
Slicing is only possible after intensive steaming. It peels satisfactorily, but the often irregular shape of the logs and their high density make the timber unsuitable for plywood.
Machining
Machining of this species is fair to difficult.
Planing
Planing is reported to give a smooth finish.
Turning
30
Boring
This species is easy to bore.
Nailing
Pre-boring is recommended for nailing.
Gluing
It is reported to be easy to glue.
Finishing
Finishing of this wood is rated as fair to difficult.
Polishing
It has a good polishing.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, crossties, HOUSING GENERAL, boards, flooring, parquet, TURNING, TOOLS, tool handles, NAVAL CONSTRUCTION
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
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
Parquet
- 15 - Empire Timbers
Turning
- 30 - Embassy of Honduras in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
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