Apple Juicer Machine

Industrial apple juicers typically adopt dual-screw continuous pressing technology or integrated crushing-pressing designs to maximize efficiency and juice yield:

• Dual-Screw Continuous Pressing:

• Conveyor Screw: Transports apple pulp into the pressing chamber.

• Pressing Screw: Gradually reduces pitch and increases shaft diameter, combined with sieve wall and cone resistance, to extract juice through screen holes.

• Residue Discharge: Adjusts spring preload and cone position to control residue dryness and optimize juice extraction.

• Integrated Crushing-Pressing:
  Some models (e.g., automatic apple juicers) integrate crushing units to process whole apples directly. The spiral extrusion mechanism breaks fruit, then presses juice via reducing chamber volume and increasing sieve resistance.

Industrial apple juicers are categorized by capacity and design:

Key Parameters:

• Power: Ranges from 1.5 kW (small-scale) to 30 kW (medium-scale).

• Dimensions: Vary by capacity (e.g., 0.78 m³ for small models vs. 1.85 m³ for automated lines).

• Feeding: Some support bulk hoppers (15–20 apples/batch) to reduce manual labor.

Usage process:

1. No load test machine: The machine is installed horizontally and fixed with anchor bolts. Tighten all bolts and clean the inside and outside of the machine to maintain cleanliness. Before connecting the power, adjust the hydraulic system pressure to the minimum. After connecting the power supply, confirm that the motor rotates in the same direction as the indicator, run it for 5 minutes, check for any abnormal sounds and vibrations, and confirm that everything is normal before feeding.

2. Uniform feeding: The material must be evenly and continuously fed into the hopper, and hard foreign objects are strictly prohibited from entering to avoid damaging the screen mesh. Uneven feeding can cause fluctuations in the force on the screw, leading to stall or jamming. After feeding, gradually increase the hydraulic system pressure or adjust the clearance of the pressure regulating head according to the process requirements, and fix the handwheel position after the juice extraction rate meets the requirements.

3. Automatic discharge: The material is pressed by the twin-screw as the volume of the spiral chamber gradually decreases along the direction of slag discharge. The squeezed juice flows into the bottom juicer through the filter screen, while the fruit residue is automatically discharged from the annular gap between the end of the sieve tube and the conical body. By adjusting the hydraulic system pressure or spring preload, the slag discharge resistance can be changed to control the dryness and wetness of the slag discharge.

Equipment features:

Large juicers have a large processing capacity and high juice output rate. The twin-screw rotates in the opposite direction, resulting in a large and uniform squeezing force; Spiral variable diameter and distance, gradually reducing the volume of the cavity and ensuring sufficient compression. The whole machine is made of high-quality 304 stainless steel, which has high strength, corrosion resistance, wear resistance, and is not easy to block. By adjusting the slag discharge resistance through the hydraulic system, the dryness and wetness of the slag can be flexibly controlled. It can be used as a single machine or multiple machines in series, with continuous operation and wide adaptability.

Feature:

Material: The whole machine is made of food grade 304 stainless steel, and the core components such as the feeding box, screen tube, and twin-screw are all made of high-quality 304 stainless steel. This material has high strength, corrosion resistance, wear resistance, and durability, fully complying with national food hygiene standards, ensuring long-term stable operation of the equipment.

Advanced juicing technology: Adopting twin-screw variable diameter and variable pitch design, the spiral bottom diameter gradually increases along the slag discharge direction and the pitch gradually decreases, resulting in a gradual reduction in the volume of the spiral cavity. The twin-screw rotates in the opposite direction, resulting in a large and uniform squeezing force. By adjusting the slag discharge resistance through a hydraulic system or spring device, the juice yield and residue dryness and humidity can be flexibly controlled.

Residue separation: After the material is pushed and pressed by a twin-screw, the juice flows into the bottom juicer through the sieve holes of the filter screen, achieving automatic separation of juice and fruit residue. The fruit residue is discharged from the annular gap between the end of the sieve tube and the conical body. By adjusting the position of the conical body through a hydraulic system or spring, the slag discharge resistance and the size of the slag outlet can be controlled.

Safety certification: The equipment has passed CE certification, ISO9001 certification, patent certification, etc., and is sold well in Europe, America, Southeast Asia, and various countries in Asia.

Core structure composition:

Feeding structure: The equipment uses a conveying screw to smoothly push the material entering the bin towards the pressing area. The twin-screw rotates in reverse, forming a strong push and bite on the material, ensuring continuous and uniform feeding without blockage.

Juice squeezing structure: The core consists of two counter rotating twin-screw screws, designed with variable diameter and pitch - the spiral bottom diameter gradually increases along the slag discharge direction, and the pitch gradually decreases. Under the spiral propulsion, the volume of the cavity gradually decreases and is subjected to strong compression. The juice flows out from the sieve holes, and the fruit residue is discharged between the end of the sieve tube and the cone.

Modular design: The whole machine is composed of independent modules such as frame, transmission system, feeding part, juicing part, hydraulic system, and electronic control system. Each module has clear division of labor and is easy to assemble and maintain. Some models adopt modular screw design, which can be disassembled and replaced; The host module and juice extraction module are relatively independent, and the drive shaft and screw are quickly connected for easy maintenance and upgrading.

Simplify the operational process

Before starting up, check the installation and cleaning of the equipment, conduct a 5-minute no-load trial run, and confirm that there are no abnormalities. Continuously inject materials at a constant speed and adjust the hydraulic pressure or cone clearance according to the process to control the juice yield. The material is pressed by twin-screw, and the juice is automatically filtered out. The fruit residue is discharged from the end, and the dryness and wetness are controlled by adjusting the slag discharge resistance. Continuous operation throughout the entire process, cleaning during shutdown.

Suitable for various processing industries

Food and vegetable processing: mainly used for juicing various fruits and vegetables, such as apples, pears, grapes, pineapples, coconuts, ginger, etc. Efficiently extract fruit and vegetable juices while preserving their natural flavor and nutrients.

Brewing and fruit wine industry: commonly used to process fermented grape skins, lees and other materials, and perform solid-liquid separation to extract the wine. It can also be used to process by-products during the brewing process of rice wine, fruit wine, etc.

Pharmaceutical and Herbal Medicine: Can be used for pressing herbal extracts, removing water and impurities from the residue, and improving the purity and concentration of the extract. Dehydrated medicinal residues can also be reused as feed or fertilizer.

Installation and commissioning

Equipment installation: Before installation, check whether the specifications of the equipment and accessories are consistent. Install the machine on a concrete or steel base, and secure large and medium-sized equipment with anchor bolts. The fuselage must be installed horizontally, with all bolts tightened and the inside and outside of the machine cleaned. When installing internal components, manually rotate the reducer and check if it rotates flexibly. If necessary, add lubricating grease.

Debugging steps: Before connecting the power, adjust the hydraulic system pressure to the minimum. Connect the power supply and confirm that the motor rotates in the same direction as indicated on the sign. Conduct a 5-minute no-load test run to confirm that there are no abnormal sounds or vibrations. Once everything is normal, the material can be fed in. After feeding, gradually increase the hydraulic pressure until the juice yield meets the process requirements.

Frequently Asked Questions

How to solve the blockage of the feed inlet of a large fruit juicer?

The material accumulates at the feed inlet and cannot smoothly enter the pressing chamber. The reasons are often due to the inclusion of hard foreign objects in the material, or excessive and rapid feeding. First, immediately stop the machine and clean up any blockages; Screen and preprocess the materials before feeding, and control the feeding speed.

How to solve abnormal vibration and noise during the operation of vegetable and fruit juicers

The equipment experiences severe vibration and excessive noise during operation. The reason may be that the body is not installed horizontally, the screws are not concentric with the cylinder, or the bearings are damaged. Equipment levelness needs to be recalibrated, motor bearings need to be inspected, and lubrication conditions need to be improved.

Maintenance method:

Daily maintenance: Clean up residual materials inside and outside the equipment immediately after each use. Focus on cleaning the easily clogged parts such as the press screw and sieve cylinder; Use a brush or high-pressure water gun to remove residue from the sieve, screw shaft, and slag outlet; Wipe off oil stains and dust with a damp cloth on the outer shell; Check the lubricating oil level of the gearbox, bearings, and other parts daily; Before starting, idle for 3-5 minutes to check for any abnormal noise or vibration in the motor and transmission components.

Zhou maintenance: Conduct a thorough cleaning of the entire machine. Dismantle the screen mesh and rinse it with clean water. Use a soft bristled brush to remove fiber impurities. After drying, reinstall it; Add high-temperature resistant butter to the screw shaft bearing every 2 weeks; Check if the cleaning nozzle is working properly; Check the elasticity and wear of the scraper; Ensure that the filter holes of the filter screen are not blocked; Observe the tightness of the belt and tighten the bolts that are prone to loosening.

Monthly maintenance: Check the wear of the spiral shaft threads, screen mesh, and seals every month. If deformation, cracks, or seal failure are found, they should be replaced immediately; Remove the screw and rinse the internal scaling with a specialized cleaning agent or high-pressure water gun; Clean the dust from the motor ventilation opening; Calibrate pressure sensors; Replace the lubricating oil of the gearbox every 3-6 months; Check the insulation of the electrical control cabinet circuit.

Safety Reminder

Do not open the cover or reach inside the machine during operation.

If there is a jamming, power off first and then handle it.

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