Technodry Block SF
Indirect, fully automatic hot air generator firing wood, coal or agro-briquettes — clean hot air up to 200 °C.

Built for the plant floor
- Fully automatic
- Air-cooled combustion chamber — no refractory
- Multiple air-entry system
- Cast-iron fuel charging doors
- Top plate opens without disconnecting chimney
- Heavy-duty steel plate construction
- Bubbling-bed combustion on request
- Packaged with control panel and safety alarms
Low-cost fuel, clean air
Neotech's Technodry Block (SF) fires coal, wood or agro-briquettes and is an indirect-type, fully automatic hot air generator for drying applications. It delivers clean, uncontaminated hot air at up to 200 °C (higher-temperature models on request). The range runs from 50,000 to 10 lakh kcal/hr.
Smart construction
The air-cooled combustion chamber avoids cumbersome refractory work, allows immediate start-up and uses radiant energy to boost efficiency. A multiple air-entry system spreads air evenly through the heat exchanger. Cast-iron charging doors give long life with no recurring maintenance. The top plate opens without disconnecting the chimney, so the heat-exchanger tubes can be cleaned regularly to keep heat transfer efficient.
Applications
Technical specification — Technodry Block SF (300 to 600)
| Parameter | TDB-300 (SF) | TDB-400 (SF) | TDB-500 (SF) | TDB-600 (SF) |
|---|---|---|---|---|
| Capacitykcal/hr | 3,00,000 | 4,00,000 | 5,00,000 | 6,00,000 |
| Temperature°C | 200 | 200 | 200 | 200 |
| Fuel consumption — coalkg/hr | 96 | 128 | 160 | 192 |
| Fuel consumption — woodkg/hr | 130 | 174 | 216 | 260 |
| Fuel consumption — briquettekg/hr | 96 | 128 | 160 | 192 |
| Efficiency | 70 % ± 2 % | |||
| Electric supply | AC 3 phase 415 V ± 6%, 50 Hz ± 3%, 4 wire system | |||
| Air volumem³/hr | 10,000 | 12,000 | 15,000 | 18,000 |
| Air circulating blowerhp | 12.5 | 15 | 20 | 25 |
| Combustion blowerhp | 1 | 1.5 | 2 | 3 |
| ID fanhp | 2 | 3 | 3 | 5 |
• Bubbling-bed combustion system available on request.
• Fuel consumption based on NCV of coal: 4,000 kcal/kg · wood: 3,300 kcal/kg · briquettes: 4,000 kcal/kg.
• Smaller (from 50,000 kcal/hr) and larger (up to 10 lakh kcal/hr) units built to order.
Get a quotation for Technodry Block SF
Tell us the duty, the fuel available and your location. An engineer will call back with a selection and a price, usually within one working day.
- Office: +91 22 2859 0678
- Factory: +91 98210 28660
- sales@neotechboilers.com
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