Jobo (Spondias mombin)
Family: Anacardiaceae
Common names: Acaiba, Ajuelo, Bala, Caja, Caja mirim, Caja seira, Ciruela, Ciruela amarilla, Ciruela de job, Hobo, Hobu, Hoeboe, Hog plum, Hogplum, Hubu, Jamaica plum, Jobito, Jobo, Jobo blanco, Jobo corronchoso, Marapa, Merida, Mombin, Monbe, Mope, Moppe, Pau da tapera, Plum, Spanish plum, Ubo, Uvos, Wild plum, Yellow mom, Yellow mombin, Yucatan plum
Distributed in: Belize, Bolivia, Brazil, Cameroon, Colombia, Columbia, Costa Rica, Cuba, Dominican Republic, Ecuador, Guyana, Haiti, Jamaica, Mexico, Panama, Peru, Philippines, Puerto Rico [US], Puerto Rico, Suriname, Trinidad and Tobago, Venezuela (Africa, Central America, Latin America, Oceania and S.E. Asia)
Distribution overview: Distributed throughout West Indies (except Bahamas), and from southern Mexico to Peru, Bolivia and Brazil, in part cultivated or naturalized. It is also planted in southern Florida. The tree usually grows along roadsides and fence rows, in pastures and forests in the coastal, moist limestone, and lower mountain regions of Puerto Rico, perhaps naturalized rather than native. also believed to have been introduced into Africa from Central or South America, and is widely cultivated there on farmlands and around towns and villages for its fruits and as a living fence.
Common uses: Bent Parts, Boat building (general), Boxes and crates, Building materials, Cabinetmaking, Casks, Chairs, Charcoal, Chests, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Drawer sides, Dyewood , Figured veneer, Fine furniture, Food containers, Fuelwood, Furniture , Furniture components, Furniture squares or stock, Furniture, General carpentry, Hatracks, Interior construction, Interior trim, Joinery, Kitchen cabinets, Light construction, Living-room suites, Matchboxes, Matches, Medicinal use, Millwork, Moldings, Office furniture, Packing cases, Particleboard, Plywood, Posts, Pulp/Paper products, Radio - stereo - TV cabinets, Rustic furniture, Stools, Tannin, Tool handles, Toys, Trimming, Turnery, Utility furniture, Veneer, Wainscotting, Wardrobes
Product sources: The timber has little commercial value and is exported from the tropics in very small quantities. It is usually priced in the low to medium range when available.Most of the species in the Spondias genus are cultivated for their edible plum-like fruit.
Environment profile: Vulnerable
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWeak figure, the textureMedium to coarseand the lusterMedium
Natural durability: Susceptible to marine borer attack, Susceptible to termite attack
Odor: No distinct odor or taste
Kiln Schedules: Dry at a moderate speed
Kiln Drying Rate: Slow
Drying Defects: Slight twist/warp, Splitting
Ease of Drying: Slowly
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good The leaves are used for medicinal purposes. Tough and strong for its low weight
Blunting Effect: Very little blutning effect on tools
Boring: Easy
Carving: Carves well in dry condition
Cutting Resistance: Low resistance to sawing
Gluing: Good joining material
Mortising: Finishes poorly
Moulding: With the exception of a few cases, worked surfaces are clean
Movement in Service: With the exception of a few cases, worked surfaces are clean
Nailing: Fairly Easy to Very Easy, Holds nails well
Planing: Works easily with hand and machine tools in planing and most operations
Resistance to Impregnation: Sapwood is permeable
Resistance to Splitting: Good
Response to hand tools: Responds well to hand tools
Routing recessing: Routs well
Sanding: Yield clean/smooth surfaces, in most cases
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Poor to Very Poor Results
Turning: Poor to Very Poor Results
Polishing: Very Good to Excellent; Staining: Fairly Easy to Very Easy;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
0,39 |
|
|
Density |
|
480 |
kg/m3 |
Bending Strength |
467 |
759 |
kg/cm2 |
Crushing Strength |
182 |
317 |
kg/cm2 |
Hardness |
|
169 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
70 |
kg/cm2 |
Stiffness |
77 |
87 |
1000 kg/cm2 |
Tangential Shrinkage |
6 |
|
% |
Radial Shrinkage |
3 |
|
% |
Weight |
464 |
400 |
kg/m3 |
Maximum Load |
0,28 |
0,42 |
cm-kg/cm3 |
Toughness |
|
84 |
cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 6644 | 10800 | psi | Density | | 30 | lbs/ft3 | Hardness | | 373 | lbs | Maximum Crushing Strength | 2598 | 4519 | psi | Shearing Strength | | 1009 | psi | Stiffness | 1099 | 1251 | 1000 psi | Toughness | | 73 | inch-lbs | Work to Maximum Load | 4 | 6 | inch-lbs/in3 | Specific Gravity | 0.39 | | | Weight | 29 | 25 | lbs/ft3 | Radial Shrinkage | 3 | | % | Tangential Shrinkage | 6 | | % | Volumetric Shrinkage | 9 | | % | |
Density (dry weight) = 31-37 lbs/cu. ft. 0 Density (dry weight) = 23-30 lbs/cu. ft. Bending strength (MOR) = low Modulus of Elasticity (stiffness) = very low Max. crushing strength = low Shrinkage, Tangential = moderate Hardness (side grain) = very soft Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 15-22 lbs/cu. ft. Weight=Medium Shrinkage, Volumetric = moderate Shrinkage, Radial = very small Shrinkage, Radial = moderate Not hard Max. crushing strength = medium Dents and marrs easily Density=Average/Medium Compression strength (parallel to grain) = low Bending strength (MOR) = medium Bending stength in air-dried condition...is medium
Belize,1946,42 Secondary Hardwood Timbers of British Honduras,British Honduras Forest Department Bulletin,No.1Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchBodig, J. and B. A. Jayne. 1982. Mechanics of Wood and Wood Composites. Van Nostrand Reinhold Company, New York.Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBrooks, R.L., et al,1941,Durability tests on Untreated Timbers in Trinidad,Caribbean Forester,2(3,pp101-119Carter, D.T.,1943,The Manufacture of shingles from local woods in Trinidad and Tobago,Caribbean Forester,4(3,pp107-11Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1I.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer CuttingKeay, R.W.J.1989. Trees of Nigeria.Revised Version of Nigerian Trees. Clarendon Press, Oxford.Kline, M. 1986. Spondias mombin - Jobo. In A Guide to Useful Woods of the World. Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland, Maine. 1994. Page 331.Little, E.L., Wadsworth, F.H.,1964,Common Trees of Puerto Rico and the Virgin Islands,U.S.A. Department of Agriculture, Agriculture Handbook,No.249Little, E.L.,1948,A Collection of Tree Specimens from Western Ecuador,Caribbean Forester,9(3,pp215-98Marshall, R.C.,1934,Trees of Trinidad and Tobago,Government Printer Port of Spain TrinidadRecord, S.J.,1939,American Woods of the Family Anacardiaceae,Tropical Woods,8(60,pp11-45Swabey, C.,1941,The Principal Timbers of Jamaica,Department of Science and Agriculture Jamaica Bulletin No.29Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Wangaard, F.F., et al,1954,Properties and Uses of Tropical Woods 4,Tropical Woods,14(99, pp1-187WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.Williams, L.1936. Woods of Northeastern Peru.Field Museum of Natural History, Botanical Series, Volume XV, Publication 377, Chicago.
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