Description
Main Shaft is a critical component of the Digester used in palm oil extraction. It transmits rotational power from the motor to the Agitator Arm, enabling effective stirring and maceration of fresh palm fruits before the pressing process in the Screw Press.
As the Main Shaft must withstand high torque and continuous operation at elevated temperatures, it is manufactured from durable, wear-resistant materials to ensure long-term performance.
Main Shaft Features
Designed to withstand high torque from continuous operation
Strong and durable against the heavy stirring forces within the digester
Manufactured from high-grade materials resistant to heat and abrasion
Typically made from carbon steel or stainless steel, often heat-treated or surface-hardened
Easy to dismantle and maintain
Minimizes machine downtime and extends system lifespan
Enhances the palm fruit digestion process
Promotes even pulp distribution for maximum oil extraction efficiency
Types of Main Shaft
Standard Main Shaft
Suitable for digesters with normal production capacity and standard stirring loadsHeavy-Duty Main Shaft
Designed for high-torque operations, ideal for large-scale palm oil production facilitiesCustom-Made Main Shaft
Tailored dimensions and materials to match specific digester models and production needs
Main Shaft Applications
Palm Oil Mills – Core part of the Digester, preparing palm fruit for efficient oil pressing
Biodiesel Production Plants – Handles raw material preparation for biofuel processing
Vegetable Oil Processing Plants – Used in palm pulp preparation before refining
Main Shaft Advantages
Ensures optimal performance of the digester unit
Minimizes wear on internal parts of the digester
Built to handle high torque and harsh processing conditions
Easy installation and maintenance, reducing operating costs
Maximizes efficiency of the Crude Palm Oil (CPO) extraction process









