Aini-pillao (Cullenia exarillata)
Family: Bombacaceae
Common names: Aini-pillao, Ainipla, Chakkamullan, Kabodda, Kai aini, Kar aini, Kar-ayani, Karani, Katu-boda, Korangupilavu, Malai-konji, Mullen-chakka, Mullen-pali, Mullu-plaka, Mulluchakka, Polavu, Vedapla, Vedipila, Vedupla, Vetipla, Wild durian
Distributed in: India, Sri Lanka (Oceania and S.E. Asia)
Common uses: Boxes and crates, Furniture, Heavy construction, Joinery, Light construction, Matches, Paneling, Plywood, Railroad ties, Roofing, Tool handles
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isRed, Yellowand the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterMedium
Natural durability: Sapwood is susceptible to wood staining fungal attack, Susceptible to insect attack
LightInduced Color Change: Darker
Kiln Schedules: Kiln Drying Rate (in days) is fairly rapid
Kiln Drying Rate: Naturally dries quickly
Drying Defects: Distortion, Internal Honeycombing Possible
Ease of Drying: Rapidly
Tree Identification: Bole/stem form is fluted
Comments: General finishing qualities are rated as good
Blunting Effect: Moderate
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Fairly Easy to Very Easy
Mortising: Fairly Difficult to Very Difficult
Moulding: Fairly Difficult to Very Difficult
Movement in Service: Fairly Difficult to Very Difficult
Nailing: Fairly Difficult to Very Difficult, Fairly Easy to Very Easy
Planing: Very Good to Excellent
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Easy to machine
Veneering qualities: Easy to cut
Steam bending: Unsuitable
Screwing: Fairly Easy to Very Easy
; Turning: Fairly Difficult to Very Difficult
Polishing: Very Good to Excellent; Staining: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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| Item |
Green |
Dry |
Metric |
| Specific Gravity |
|
|
|
| Density |
|
576 |
kg/m3 |
| Bending Strength |
654 |
1024 |
kg/cm2 |
| Crushing Strength |
485 |
699 |
kg/cm2 |
| Hardness |
|
|
kg |
| Impact Strength |
|
71 |
cm |
| Shearing Strength |
|
|
kg/cm2 |
| Stiffness |
134 |
155 |
1000 kg/cm2 |
| Tangential Shrinkage |
7 |
|
% |
| Radial Shrinkage |
4 |
|
% |
| Weight |
560 |
448 |
kg/m3 |
| Maximum Load |
|
|
cm-kg/cm3 |
| Toughness |
|
|
cm-kg |
| Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 9310 | 14566 | psi | | Density | | 36 | lbs/ft3 | | Impact Strength | | 28 | inches | | Maximum Crushing Strength | 6899 | 9945 | psi | | Stiffness | 1916 | 2209 | 1000 psi | | Weight | 35 | 28 | lbs/ft3 | | Radial Shrinkage | 4 | | % | | Tangential Shrinkage | 7 | | % | | Volumetric Shrinkage | 11 | | % | |
Max. crushing strength = high Bending strength (MOR) = medium Toughness-Hammer drop (Impact Strength) = low Shrinkage, Tangential = moderate Shrinkage, Radial = moderate Modulus of Elasticity (stiffness) = medium Modulus of Elasticity (stiffness) = high Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Shrinkage, Volumetric = moderate
Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government PressChowdhury, K.A., Ghosh, S.S.,1958,Indian Woods: Their identification, properties and uses Vol. I,Dilleruaceae to Elaeocarpaceae,Manager of Publications, Delhi, IndiaNazma,1981,A handbook of Kerala Timbers,Kerala Forest Research Institute Research Report, No.9Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols
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