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Abot-zoc
Abot-zoc (Manilkara cuneifolia)

Family: Sapotaceae

Common names: Abot-zoc, Doka, Jambo, Ludulio, Masaka, Mngambo, Mti-chuma, Mukunya, Ngambo, Nkunya

Distributed in: Kenya, South Africa, Tanzania, Uganda (Africa, Eastern Europe, Oceania and S.E. Asia)

Distribution overview: Thailand, Laos, Vietnam, Cambodia, Indomalesia, and Pacific Islands.

Common uses: Boat building (general), Cabinetmaking, Carvings, Flooring, Flooring: commercial heavy traffic, Flooring: industrial heavy traffic, Fuelwood, Furniture, Handles: general, Heavy construction, Ladders, Marine construction, Mine timbers, Posts, Railroad ties, Sporting Goods, Tables, Toys, Turnery, Vats, Vehicle parts, Wharf construction

Colors: the heart isRed, Reddish brownand the sapwoodPinkish .The grain isStraight, the textureFine to medium

Natural durability: Susceptible to insect attack, Very durable

Kiln Schedules: UK=B US=T2C2/T2C1 Fr=1

Drying Defects: Slight end splitting, Slight surface checking

Ease of Drying: Fairly Easy

Tree Identification: Bole/stem form is straight

Comments: General finishing qualities are rated as good

Blunting Effect: Blunting effect on machining is severe

Boring: Fairly easy to very easy

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Nailing: Difficult to nail, Possible if prebored

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Easy to machine

Screwing: Possible if prebored ; Turning: Poor to Very Poor Results

Polishing: Good; Staining: Fair to Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 913 kg/m3
Bending Strength 879 1359 kg/cm2
Crushing Strength 466 676 kg/cm2
Hardness 1305 kg
Impact Strength cm
Shearing Strength 205 kg/cm2
Stiffness 167 195 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 4 %
Weight 897 769 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 12509 19341 psi
Density 57 lbs/ft3
Hardness 2877 lbs
Maximum Crushing Strength 6628 9623 psi
Shearing Strength 2928 psi
Stiffness 2385 2774 1000 psi
Weight 56 48 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %

Density (dry weight) = 61-67 lbs/cu. ft. 0
Max. crushing strength = high 1
Hardness (side grain) = very hard 0
Bending strength (MOR) = high 0
Shearing strength (parallel to grain) = very high
Shrinkage, Tangential = fairly large
Shrinkage, Radial = large
Density (dry weight) = 53-60 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Radial = very small
Modulus of Elasticity (stiffness) = very high
Modulus of Elasticity (stiffness) = high
Density (dry weight) = 67-75 lbs/cu. ft.
Shrinkage, Tangential = small
Shrinkage, Radial = small
Shearing strength (parallel to grain) = very low
Modulus of Elasticity (stiffness) = medium
Max. crushing strength = medium
Hardness (side grain) = hard
Density (dry weight) = 46-52 lbs/cu. ft.
Bending strength (MOR) = medium
Bending strength (MOR) = low

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.48Banks, C.H.,1954,The Mechanical Properties of Timbers with Particular Reference to those,grown in the Union of South Africa,Journal of the South African Forestry Association,No. 24 pp.44-65,[South,African Forestry Journal]Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35Bolza, 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. MoshiEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaMcCoy-Hill, M.,1957,Timbers of Tanganyika - Ngambo, Mpande, East African Walnut and Candelabra,Tree,Timber Technology,65(2219,pp467Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Patterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23Tack, C.H.,1969,Uganda Timbers,Govt. Printer UgandaTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tanzania 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 TanganyikaUganda Forest Department,1954,Flooring Timbers,Uganda Forest Department Timber Leaflet,No.17Uganda Forest Department,1954,Nkunya - Manilkara cuneifolia,Uganda Forestry Department Uganda Timber Leaflet, No.3Uganda Forest Department,1954,The Mechanical Properties of some Ugandan Timbers,Uganda Forest Department Timber Leaflet,No.1Whk, J.H. van,1955,Physical and mechanical properties of the woods of Manilkara cuneifolia,and Baikiaea minor,Tropical Woods,No. 102,pp50-54Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
*Come interpretare i dati (manleva su eventuali imprecisioni)