tender for supply, installation, testing and commissioning of rotary drum dryer for hay making 20 hp (2.5 mt/hr) , supply, installation,testing & commissioning of of rotary drum dryer for hay making 20 hp (2.5 mt/hr) equipment with minimum technical specification mentioned in the bid document. , rotary drum dryer for hay making 20 hp (2.5 mt per hr)- • a rotary drum dryer is continuous drying equipment used for reducing moisture content from bulk materials by direct or indirect heating. the machine consists of a rotating cylindrical drum mounted at a slight inclination, allowing material to move from the feed end to the discharge end while being exposed to hot air. • machine type: continuous rotary drum dryer • drum material: mild steel (ss316) or any food grade equivalent • drum diameter: approx. 1600 mm - 2600 mm • drum length: approx. 7 to 9 meter • capacity: minimum 2.5 mt per hour • moisture reduction: up to 70 % to below 8-15% • drum speed: minimum 0.5 - 11 rpm • heating type: direct / indirect heating • heat source: biomass, coal etc. • operating temperature: minimum 65°c - 300°c • motor power: approx. 3 kw - 160 kw or minimum 20 hp • air flow system: co-current / counter-current • inclination angle: approx. 3° - 5° • thermal efficiency: up to 80% • operation mode: automatic / semi-automatic • fuel consumption: depends on material moisture and capacity • control panel: plc / electrical control panel • drive system: gearbox with motor & chain/sprocket drive • support system: tyre rollers & support rollers • dust collection: cyclone separator / bag filter • feeding system: screw conveyor / belt conveyor • discharge system: screw conveyor / rotary valve • following machinery equipment shall be included: 1. rotary drum shell: heavy-duty rotating cylindrical body. 2. internal flights / lifters: lift and shower material through hot air for efficient drying. 3. burner / furnace: generates hot air using biomass, gas, diesel, or coal. 4. drive assembly: motor, gearbox, girth gear, and pinion arrangement. 5. support rollers: support drum rotation and alignment. 6. feeding hopper: controlled feeding of wet material. 7. cyclone separator: separates dust particles from exhaust air. 8. induced draft fan: maintains airflow and negative pressure. 9. control panel: controls temperature, rpm, airflow, and safety systems. 10. blower specification- 45000-60000 cfm motor specification 15 hp hopper size: minimum 260 liter , supply, loading-unloading, erection, installation, testing, commissioning and training- supply, loading-unloading, erection, installation, testing, commissioning and trial run shall be included. training for operators shall be provided. operation & maintenance manual should be provided.