Complete rice milling plant is the process that helps to detach hulls and bran's from paddy to produce polished rice. The objective of a rice milling system is to remove the husk and the bran layers from paddy to produce white rice kernels that are sufficiently milled free of impurities and contain a minimum number of broken kernels.
Quick answer: The VOSON VMTCP-500 is presented as a 500 ton-per-day automatic rice mill production line based on 24-hour operation, with a published power range of 500-1500 kW. Its stated process covers paddy intake, cleaning, destoning, husking, paddy separation, whitening, polishing, grading, optical color sorting and packing. At this scale, the approved proposal should define machine quantities, storage buffers, utility demand, building interfaces and a measurable acceptance test rather than rely on a single daily-capacity figure.
| Planning item | Published VMTCP-500 value | What the contract should define |
|---|---|---|
| Nominal capacity | 500 tons per day over 24 hours | Whether capacity means paddy input, finished-rice output or another agreed basis. |
| Arithmetic hourly average | About 20.83 tons per hour when 500 tons are divided across 24 hours | Effective operating hours, design margin, maintenance and product changeover allowance. |
| Published power range | 500-1500 kW | Final motor list, connected load, simultaneous demand, voltage and transformer duty. |
| Process boundary | Raw-paddy feeding through finished-rice packing | Machine trains, elevators, bins, platforms, aspiration, air system and control scope. |
| Product finishing | Length grading, thickness grading, color sorting and packing are stated | Required rice fractions, defect limits, bag formats, reject handling and automation level. |
| Structure | Steel-frame or building-supported arrangement | Layout, equipment loads, access, local construction rules and supply responsibility. |
Capacity note: Dividing 500 tons by 24 hours gives an arithmetic average, not a separate throughput guarantee. A valid performance test must state paddy variety, moisture, impurity level, input basis, test duration, allowed interruptions and the finished-rice quality being produced.
The published process sequence is raw-material feeding, cleaning and destoning, husking, paddy separation, rice milling, polishing, grading, color sorting and packing. A plant of this size may use parallel machines or process trains to reach the required flow and provide operating flexibility. The quotation should therefore list every model and quantity, not only the line name.
| Process stage | Example VOSON equipment | Evidence to request |
|---|---|---|
| Intake cleaning and destoning | vibrating cleaning screen and paddy destoner | Machine quantity, input condition, screen specification and impurity-removal result. |
| Husking | pneumatic rubber roller huller | Hulling efficiency, feed balance, roll consumption and broken-rice control. |
| Paddy separation | double paddy separator | Return-flow capacity and residual paddy in the brown-rice stream. |
| Whitening and polishing | vertical rice mill and double roller rice polisher | Number of passes, whiteness, bran removal, rice temperature and water-control basis. |
| Grading and optical sorting | white rice grader and rice color sorter | Grade fractions, defect definition, sorter channels, reject rate and compressed-air demand. |
| Finished-rice packing | automatic packing machine | Bag sizes, weighing accuracy, packing speed, woven or vacuum bags and palletizing scope. |
Begin with representative raw-material data. State paddy variety, moisture range, foreign material, immature grain, storage history and seasonal variation. These factors affect cleaning load, husking behavior, milling recovery and final appearance.
Next define the marketable products: head-rice target, acceptable broken-rice percentages, whiteness, polishing level, grading fractions, color defects and package sizes. Length and thickness graders should be configured for those commercial grades. Reject and by-product streams, including husk, bran and broken rice, also need a handling plan.
Operating hours must be realistic. If the factory has fewer than 24 effective production hours after cleaning, maintenance and changeovers, the required hourly flow rises above 20.83 t/h. Storage bins and conveyors should buffer normal variations without hiding an undersized bottleneck.
The published 500-1500 kW range is a preliminary planning envelope. Request a motor and load schedule covering each process machine, elevator, conveyor, fan, compressor, color sorter, packer and auxiliary system. The electrical engineer should distinguish connected load, normal simultaneous load and startup demand.
Confirm site voltage, frequency, transformer capacity, switchgear, power-factor correction, cable boundary and backup-power philosophy. Optical sorters and pneumatic equipment require stable, clean compressed air. Mist polishing requires controlled water. Cleaning, conveying, husking and whitening require a properly balanced aspiration and dust-collection system.
A 500 TPD plant needs more than a compact equipment drawing. The layout should coordinate vehicle receiving, paddy storage, process floors, finished-rice bins, packing, warehouse movement, by-product handling, laboratory access and maintenance routes.
Before construction, request dimensioned plans and elevations showing equipment loads, pits, floor openings, platforms, stairs, handrails and removal clearances. Confirm whether the supplier provides the steel structure, bins, ducts and electrical panels or only machinery data for a local contractor. Local structural, electrical, fire and worker-safety rules remain part of the project.
PLC control can coordinate feeding, interlocks, alarms and controlled shutdowns. Ask for the operating philosophy, control-panel list, sensor scope, manual modes and procedures for restarting after a fault. Networked controls should not prevent safe local operation of essential equipment.
Automation reduces repetitive work but does not define total staffing. The factory still needs intake control, laboratory testing, packing, warehouse handling, maintenance, cleaning, utilities and supervision. Buyers should also identify critical spare parts and consider whether parallel equipment is needed at stages where a single failure would stop the entire line.
| Required document | Minimum detail | Buyer decision supported |
|---|---|---|
| Process and mass-flow diagram | Input, product, return, reject and by-product streams | Whether all commercial products and waste flows are covered. |
| Equipment schedule | Model, quantity, rated flow, motor and material-contact construction | Technical comparison and identification of bottlenecks. |
| Layout and civil loads | Dimensions, elevations, access, pits, openings and point loads | Building feasibility, installation planning and maintenance access. |
| Utility schedule | Power, air, water, ventilation and dust collection | Transformer, compressor and infrastructure sizing. |
| Scope matrix | Freight, unloading, erection, wiring, training and spare parts | Complete project cost and responsibility allocation. |
| Acceptance protocol | Paddy basis, duration, throughput, recovery, grades, energy and downtime | Measurable evidence that the installed line meets the agreement. |
Compare the 200 ton rice mill production line and 300 ton rice mill production line using the same capacity, operating-hour and test definitions. Browse the complete rice mill plant range and individual rice mill machines before approving the process.
Use the rice mill project cost checklist to budget machinery, civil works, utilities, freight and commissioning. The Rice Mill Project Planning Hub organizes the wider purchasing workflow. For a proposal, send paddy data, finished-rice targets, operating hours, packing formats, voltage, destination and site drawings through Contact.
The published basis is 500 tons per day over 24 hours. The quotation should state whether this means paddy input or finished-rice output.
Dividing 500 tons by 24 hours gives about 20.83 tons per hour. The equipment needs additional margin when effective operating time is shorter.
The published planning range is 500-1500 kW. Transformer and electrical design must use the final motor and simultaneous-load schedule.
They are part of the published process description. The quotation must define grader quantity, color-sorter channels, defect criteria and product grades.
The published scope allows common woven-bag and vacuum-packing options. Bag sizes, speed, accuracy and downstream handling should be specified.
Record paddy condition, input flow, finished output, milling recovery, head rice, quality grades, power demand, test duration and downtime.
Henan Voson Grain Engineering Machinery Co., Ltd. was established in 2014, and has been devoted to the research and development of rice mill machine...
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