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Tray dryers (Practical Action Technical Brief)
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== The Practical Action Batch Tray Dryer == This, the smallest dryer in the range, is designed to allow trials to be carried out, the production of samples to demonstrate to buyers and for basic product costings to be calculated. Due to its low capacity the tea chest dryer is not intended for commercial production but does allow product development at very low cost. {| | Construction: | plywood walls over wood frame |- | Dimensions: | 0.5 m3 |- | Capacity: | 6 trays |- | Heat source: | 2kw electric fan heater wired with external thermostat so that fan runs continuously | _ | Capacity: | approx. 1kg/day |}
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