Practical Operation and Maintenance Guide for Automatic Peanut Oil Production Lines

An automatic peanut oil production line combines peanut preparation, pressing, oil conveying, refining and intelligent control into an integrated processing system. Reliable operation depends not only on equipment selection, but also on disciplined inspection, correct process monitoring, regular cleaning and preventive maintenance.

This practical guide from Qi'e Grain and Oil Machinery Co., Ltd. is intended for production operators, site managers and maintenance personnel. It provides general guidance for reducing operating errors, unplanned downtime and avoidable equipment wear. Specific parameters, maintenance intervals, spare parts and repair procedures must always follow the equipment manual, project documentation and instructions from qualified engineers.

1. Understand the Main Processing Stages

Before operating an automatic peanut oil production line, the team should understand the purpose of each stage and the relationship between upstream and downstream equipment. A typical line may include the following functional areas:

2. Pre-Startup Inspection Checklist

Complete a pre-start inspection after installation, after an extended shutdown or whenever maintenance has been performed. Do not start the line until abnormal conditions have been identified and corrected.

• General condition: Check for loose fasteners, visible damage, oil leakage, unusual residue or foreign objects around the equipment.
• Electrical and control systems: Confirm that power connections, protective devices, sensors, emergency stops and control-panel indicators are functioning correctly.
• Moving components: Verify that shafts, feeders, conveyors, pumps and other moving parts can operate freely without obstruction.
• Lubrication: Confirm that specified lubrication points have the correct lubricant and that oil or grease levels are within the equipment requirements.
• Pipelines and valves: Check connections, valve positions, filters and tanks before transferring oil or process materials.
• Raw material readiness: Make sure peanuts meet the applicable preparation and quality requirements for the selected process.
• Safety conditions: Ensure guards are installed, work areas are clean, access routes are clear and operators are wearing appropriate personal protective equipment.

3. Recommended Operating Sequence

1. Start supporting systems first. Activate the systems required for conveying, filtration, cooling, heating or refining according to the project operating sequence.
2. Start the line without an excessive material load. Allow equipment status and process flow to stabilize before gradually introducing prepared peanuts, unless the equipment manual specifies another procedure.
3. Adjust feeding steadily. Avoid sudden increases that may overload the press, cause unstable current, reduce processing consistency or create blockages.
4. Monitor pressing conditions. Observe feed flow, machine sound, vibration, temperature, motor load, cake discharge and oil output within the approved operating range.
5. Coordinate oil transfer and refining. Confirm that oil tanks, pumps, filters and refining units are ready to receive material before increasing production flow.
6. Record key observations. Production logs should capture operating status, cleaning activities, abnormalities, adjustments and maintenance actions for later review.

4. Process Monitoring During Production

Intelligent control can make operation more coordinated, but automation does not replace operator supervision. Personnel should compare control-panel information with the actual condition of the equipment and material flow.

5. Cleaning and Hygiene Management

Cleaning is essential for maintaining oil quality, preventing cross-contamination and reducing the risk of material accumulation. Cleaning procedures should be adapted to the equipment material, process design and local food-processing requirements.

• Complete the approved shutdown sequence before opening, dismantling or cleaning any equipment.
• Remove residual peanuts, cake, oil deposits and filter residue from accessible areas and designated collection points.
• Clean presses, conveyors, screens, filters, tanks and work surfaces according to the equipment manual.
• Prevent water, cleaning agents or foreign materials from entering electrical cabinets, motors, bearings or other components not designed for wet cleaning.
• Check that cleaned parts are fully dry and correctly reassembled before restarting the line.
• Document cleaning completion and report persistent deposits, unusual odors, leakage or difficulty in disassembly.

6. Lubrication and Routine Maintenance

Correct lubrication reduces friction and helps protect bearings, gearboxes and other moving components. Using too much lubricant, the wrong lubricant or an unsuitable cleaning method can also cause problems. Always use the lubricant type, quantity and application method specified for the installed equipment.

7. Fault Prevention and Safe Servicing

Early identification of abnormal conditions is one of the most effective ways to prevent extended downtime. Operators should stop or isolate the affected section when there is a serious alarm, sudden vibration, burning smell, uncontrolled temperature change, severe leakage, blockage or unexpected equipment noise.

Safety reminder: Before inspection, cleaning, blockage removal or repair, shut down the equipment, isolate all relevant energy sources and confirm that moving, heated, pressurized and electrically powered components are safe to access. Only trained and authorized personnel should perform servicing.

Do not bypass protective devices, open guarded areas during operation or restart equipment before the cause of a fault has been assessed. When a fault cannot be identified or corrected safely on site, contact qualified maintenance personnel or the equipment supplier.

8. Operator Records That Support Better Maintenance

A simple and consistent record system helps site managers identify recurring problems and plan maintenance before a failure affects production. Useful records may include:

• Startup and shutdown time
• Raw material condition and preparation status
• Operating alarms, abnormal sounds, vibration or leakage
• Cleaning, lubrication and inspection activities
• Replacement of filters, seals, belts or other wear parts
• Corrective actions and follow-up requirements

Professional Support for Peanut Oil Processing Projects

Qi'e Grain and Oil Machinery Co., Ltd. develops and supplies oil pressing equipment, oil production line equipment and edible oil refining equipment for customers in Asia, Africa, South America and other international markets. Its automatic peanut oil production line can be configured for different processing scales and may integrate cold pressing, hot pressing, refining and intelligent control according to project requirements.

From process design and equipment installation to technical support and after-sales service, Qi'e Grain and Oil Machinery Co., Ltd. works with agricultural enterprises, small and medium-sized oil mills and international trading companies to support practical, efficient and reliable oil processing operations. For project-specific operating parameters or maintenance procedures, consult the supplied documentation and qualified Qi'e technical personnel.