50 TPD Peanut Oil Pressing Production Line Project

Delivered by QIE Group in Malawi, this project adopts an integrated solution combining mechanical pressing, small-scale continuous refining, and finished product filling. It covers key stages including peanut pre-treatment, pressing, refining, oil storage, and filling, helping the customer build a stable and sustainable peanut oil processing system while supporting the industrial utilization of local peanut resources.

Project Background

This project is located in Malawi and is designed as a 50 TPD peanut oil pressing production line, positioned as a complete edible oil processing project. QIE Group is responsible for overall process planning and equipment integration, enabling the project to go beyond raw material pressing and build an industrial production system from peanut material to finished edible oil.

The final project objective is clear: to achieve stable production and sustainable operation under local industrial conditions, while leaving room for future capacity optimization and process upgrades.

Customer Requirements and Project Objectives

The client aimed to establish a peanut oil production line capable of long-term operation, with core requirements focused on capacity, stability, product quality, and operating cost.

Process 50 tons of peanut raw material per day to meet basic industrial production requirements;
Maintain stable oil yield and product quality to improve production predictability;
Equip basic refining and filling capabilities to form a complete finished oil production chain;
Reduce operating costs and maintenance difficulty to suit local conditions;
Improve production continuity and reduce reliance on extensive operator experience.

Process Design

Mechanical pressing + small-scale continuous refining + finished product filling integrated solution

Taking into account the characteristics of peanut raw materials and the implementation conditions at the project location, we adopted a mature, controllable, and easy-to-manage process route. This solution is suitable for peanuts with high oil content and maintains process stability without introducing overly complex system configurations.

Mature process, convenient for on-site commissioning and long-term operation;
No solvent system required, resulting in a clearer overall investment structure;
Suitable for localized operation and subsequent maintenance;
Offers expansion potential to support future line upgrades.

Key Challenges in Project Implementation

During project execution, the challenges were not limited to equipment installation, but also included raw material fluctuations, energy conditions, and operational management.

challenge	Impact
Fluctuations in raw material moisture content and impurities	Affect pressing stability and subsequent oil quality control
Unstable local energy supply	Places higher requirements on continuous production, heat matching, and process rhythm
Limited operator experience	Requires a process design that is easier to train and easier to implement
High demand for continuous and stable production	Requires the system to remain controllable and consistent during long-term operation

QIE Group’s Engineering Approach

Based on the conditions above, we carried out an integrated optimization of pretreatment, pressing, refining, and auxiliary systems so that each section works together to achieve stable output, stable oil yield, and stable operation.

Pretreatment system optimization:Configured cleaning, destoning, magnetic separation, crushing, and conditioning to improve raw material uniformity and reduce the impact of impurities and fluctuations on pressing.
Two-stage pressing process:Adopted a pre-pressing + secondary pressing structure to improve oil extraction efficiency while controlling operating rhythm and reducing residual oil in the press cake.
Refining system configuration:Equipped with basic refining steps including degumming, deacidification, decolorization, and deodorization to improve crude oil quality and meet finished oil processing requirements.
Auxiliary system integration:Integrated boiler heating, oil storage systems, automatic filling lines, and laboratory testing equipment into the overall solution to enhance the completeness of plant-level operation.

Scope of Project Configuration

The project adopts an EPC integrated delivery model, covering the main stages of the production chain and forming a complete system from raw material handling to finished product packaging.

• Peanut shelling and pre-treatment system

• Automatic filling system

• 50 TPD pressing production line

• Boiler and thermal energy system

• 15 TPD refining system

• Laboratory testing equipment

• Oil storage tank system

Implementation Process and Delivery Mode

Process design and layout planning to define the production line structure and equipment coordination;
Factory-based equipment manufacturing to ensure key units meet project requirements;
On-site installation and system integration to complete interconnection and matching of all stages;
Integrated commissioning and optimized operation to improve line-wide consistency.

With turnkey line delivery, the client did not need to coordinate multiple system suppliers separately, making project execution more centralized and subsequent operation management clearer.

Operating Performance and Project Results

After commissioning, the production line supports continuous and stable operation, with process rhythm and equipment maintenance easier to control. Based on project performance, the overall results are reflected in the following aspects:

Capable of 24-hour continuous production;
Stable oil output, supporting production planning;
Reasonable energy consumption, suitable for long-term operation;
Relatively simple equipment maintenance, convenient for local team management.

Key Process Parameters

Cake residual oil ≤5–6%

Crude oil impurities ≤0.2%

moisture ≤0.2%

Case Value

The significance of this Malawi peanut oil pressing production line project goes beyond the delivery of a set of equipment. More importantly, it helped the client establish a sustainable peanut oil processing capability. The project enabled the industrial utilization of local peanut resources, created a complete chain from raw material processing, pressing, and refining to filling, and also left room for future refining upgrades and capacity optimization.

For companies planning to build a peanut oil production line, a peanut oil processing project, or a turnkey edible oil processing plant, this project demonstrates that systematic process design and equipment integration can improve production stability, operational efficiency, and brand consistency while controlling investment and complexity. With its expertise in grain and oil machinery R&D, manufacturing, and engineering delivery, QIE Group continues to provide edible oil processing solutions tailored to local conditions for global customers.

Project site photos

50 TPD peanut pre-treatment installation site	50 TPD peanut steaming and cooking equipment
Peanut oil pressing workshop equipment	Finished peanut oil storage tank system