Your Trusted Belt Filter Press Manufacturer in China

Goldcheer is a professional belt filter press manufacturer in China for over 20 years. We are committed to manufacturing innovative and high-technology belt filter presses that will meet your requirements.

  • Wide range of belt filter press
  • Full customization
  • Certified by international quality and food hygiene standards
  • Over 20 years of experience in manufacturing belt filter press

Why Goldcheer is a Professional Belt Filter Press Manufacturer

Goldcheer has rich experience in manufacturing belt filter press machines. For over 10 years, Goldcheer has been trusted by thousands of customers from around the world as their no.1 supplier of belt filter press. We offer customization of your belt filter press orders based on your specification, details, logo, etc. to promote your brand and business. We also export belt filter press to different countries in Asia, Europe, America, and more. Message us for more information.

Goldcheer Belt Filter Press

Belt Filter Press For Juice Factory

Goldcheer belt filter press for juice factory is made from stainless steel materials. It has corrosion-resistance properties to ensure safety, excellent washing effect, and simple operation.

Small Activated Belt Filter Press in China

This machine is integrated with automatic deviation correction for a superior filter function. It offers high-efficiency, large capacity, low noise, and low energy consumption.

Automatic Vacuum Belt Filter Press

Goldcheer automatic vacuum belt filter press is manufactured with modular design. It features consecutive feeding, fast filter speed, and convenient filter technology.

High Pressure Rotary Drum Belt Filter Press

High pressure rotary drum belt filter press is manufactured with concentrating rotary drum, conditioning tank, belt filter, and more. It is large capacity and a low noise machine.

Stainless Steel Belt Filter Press For Apple Juice in China (1)

This machine is widely used for dehydration and processing fruits like apples, pears, carrot, etc. it features 24-hours continuous working and safety protecting device.

Automated Operation Belt Filter Press For Fruit Juice Processing

Our automated operation belt filter press for fruit juice processing is manufactured with high efficiency fruit dehydration. It is fully automatic so you can save labor and time.

Automatic Sludge Dewatering Machine Belt Filter Press

Automatic sludge dewatering machine belt filter press is designed with automatic control. It is also integrated with continuous working, high dewatering efficiency, and low noise.

Automatic Plate and Frame Membrane Filter Press

This machine is a type of intermittent belt filter press that is divided into box filter press and plate frame filter press. It has a simple structure with highly reliable solid-liquid material separation.

High Quality Belt Filter Press Device

High-quality belt filter press device is an equipment used for separating liquid and solid materials. It has a large output, low energy consumption, continuous operation, and high efficiency.

Plate Frame Filter Press Machine

This machine features double pressure crank that will control the closing and opening of the die. It is fully automatic, linear type, no pollution, intelligent, easy to clean, and easy to maintain.

Sludge Dewatering Belt Filter Press

Sludge dewatering belt filter press is manufactured with automated operation. It has a superior mechanical properties, large processing capacity, and strong dewatering capacity.

Vacuum Belt Filter Press

Vacuum belt filter press can separate liquid and solid materials through vacuum suction and material gravity. It is equipped with a vacuum chamber that functions through a ring rubber belt.

Goldcheer Belt Filter Press

Goldcheer belt filter press is manufactured using high-quality and premium grade raw materials like 304 stainless steel. All our belt filter press machines are processed and fabricated through our advanced manufacturing equipment.

Goldcheer belt filter press is also manufactured with CE, ISO, RoHS, and other food and quality standard certifications. We also make sure that your belt filter press machines are inspected before shipment and delivery.

belt filter press in china

GoldCheer All Fruit and Vegetable Processing Machine

Fruit Washing Machine
fruit crusher
Fruit Crusher
fruit blancher
Fruit Blancher
fruit destoner
aseptic filler
Aseptic Filler
Forced Circulation Evaporator
Forced Circulation Evaporator
fruit extractor
Fruit Extractor
Tubular Sterilizer

Goldcheer Belt Filter Press

Data Sheet


Goldcheer – The Best Manufacturer of Belt Filter Press in China

As a professional manufacturer of belt filter press, Goldcheer is committed to providing you the best quality products and services. Our expertise in this field makes us the most trusted and leading manufacturer.

For more than 20 years, Goldcheer focuses on development, design, production, sales, and installation of high-quality belt filter press. We offer great deals for your business through our integrated services and complete quality management system.

Our belt filter press is designed and fabricated by our dedicated R&D team through our state-of-the-art facility and high-tech factory. Thus, you can assure that your belt filter press are innovative and can suit your type of application.

You can choose a wide range of belt filter machine from our stocks. However, if you cannot find the right product for you, you can choose to personalize your orders. We offer OEM services so we can customize your belt filter press according to your specification. We can also incorporate your logo to promote your brand.

Goldcheer belt filter press features S-shapes filter belt. It helps in ease and increasing the pressure gradually. This machine is manufactured using 304 and 316 stainless steel raw materials. We make sure that your belt filter press is approved by international quality standards.

Its belt is adjustable and pneumatic regulated. It ensures the stability of the machine. You can also guarantee that its belt has a long-life service. Goldcheer also manufactures belt filter press with low energy consumption, low noise, and slow-speed of revolution.

To improve your belt filter press operation, it is integrated with emergency stop device and multi-point safety detection. Thus, it is safe to use and provides simple operation, easy to clean, and easy to maintain.

Goldcheer belt filter press is designed for dewatering and filter pressing different materials. These are suitable for dewatering inorganic hydrophobic and organic hydrophilic materials. If you have more question about our belt filter press, contact us immediately. Choose Goldcheer as your no.1 manufacturer of belt filter press for your business!

Request a quote for your next belt filter press orders!

Belt Filter Press:  The Ultimate FAQ Guide

A belt filter machine is a machine that uses filter belts and rollers to dewater sludge or slurry.

The liquid drains through the porous filter belt while the solid is retained on the filter belt’s surface. The residual substance left is a non-liquid material called “cake.”

In this guide, we will intensively cover the commonly asked questions concerning the Belt filter press. This will include the entire dewatering process.

What are the Benefits of Belt Filter Press?

Belt filter press

Belt filter press

The advantages of belt filter press in a liquid waste management system include:

  • Low staffing requirement since the machine can process a large amount of waste in one shift.
  • Powering up and shutting down the belt filter press is relatively easy and fast, unlike centrifuges which build up speed for close than an hour.
  • Belt filter press is associated with less noise emission.
  • Belt replacement is the major maintenance done on the machine. As such, the maintenance cost is relatively simple and cheap.
  • Since the machine can continuously run, managing it is easy.
  • Also, the belt filter press has low auxiliary equipment requirements since it functions efficiently.
  • Despite the fast power-up, the machine has a relatively low energy requirement.
  • Lastly, the belt filter press has a long lifespan.

Are there Limitations of using Belt Filter Press?

Despite the overwhelming benefits, the belt filter press has a few limitations. These include:

  • The water content of the residual solid is greater than that of a chamber filter press.
  • High operating cost since the belt filter press requires a large amount of flocculants.
  • However, a good ventilation system can correct this.
  • The belt filter press is not fully efficient, with wastewater having a high quantity of grease and oil.
  • Before feeding into the machine, the solid waste must be filtered to remove sharp objects that may damage the machine.
  • More operator attention is required if the solid waste is not passed through a digester before feeding. This is because solid waste may vary in its solid concentration.

What are the Components of Belt Filter Press?

Parts of belt filter press

Parts of belt filter press

The major components of a belt filter press are:

  • Rollers and bearings – For moving the belts
  • Dewatering belts – For conveying and dewatering the feed.
  • Belt tracking and tensioning system – Checking the speed of the belt to see if it meets the process requirements.
  • Drives and controls –For Operating the machine
  • Belt washing system – For cleaning the belts before subsequent feeding.
  • Scrappers – For removing cake, especially the sticky ones, from the dewatering belts.

How does Belt Filter Press Work?

Belt filter press animation

 Belt filter press illustration

The belt filter press working principle is centered around dewatering the sludge or liquid waste in stages. Despite the fact that there are different types of belt filter press, they each adopt a common working principle.

Below are the typical stages the belt filter press use to achieve their dewatering purpose.


The sludge is blended with a flocking agent in the conditioning tank, either polymer feed or polyelectrolyte.

This results in the clumping of the solid particles into flocs or agglomerate.

Gravity Drainage

After flocculation, the sludge moves onto the main filter belt, made from a single woven fabric. It has a high flow rate. At this point, the sludge is dewatered through gravity.

Compression (Low-pressure) Dewatering

The sludge comes in contact with the pressure belt (top belt). Here it is gradually squeezed and sandwiched, resulting in the formation of a cake.

Shearing (High-pressure) Dewatering

The action of the rollers together with the two belts further dewaters the cake, making the sludge a fully dewatered cake.


The cake is then removed from the two belts using scrapper blades

Note – All these dewatering stages occur in three zones; drainage zone, low-pressure (compression) zone, and high-pressure (shearing) zone.

What are the Uses of Belt Filter Press?

Typically, a belt filter press is used in liquid wastewater management systems for dewatering sludge.

Also, the belt filter press is applied in the manufacture of wine, cider, and apple juice.

Additionally, they can be used to process animal manure, ink sludge, and food products.

Lastly, mining and chemical industries also employ the belt filter press in separating mixtures into filtrate and a solid cake residue.

What is Dewatering?

Dewatering is the removal of liquid from sludge or liquid waste, leaving behind a solid residue referred to as “cake.”

Some common benefits of dewatering include:

  • Volume reduction reduces storage and transportation costs.
  • Liquid elimination before landfill disposal.
  • Fuel requirement reduction if the waste is to be dried or incenerated.
  • Helps avoid biosolids runoff caused by the liquids.
  • Aids in optimizing successive procedure such as thermal drying.
  • Creates void and volatile solids which, when blended with a bulking agent, are readily compost.

Which Industries use Belt Filter Press?

The major industries that use belt filter presses include:

  • Pulp and Paper Mills
  • Metallurgical and leather industry
  • Food and processing factory
  • Waste water treatment plants (Municipal)
  • Purification and water conditioning plants
  • Biogas composites.

Which Features should you Consider when Buying Belt Filter Press?

There are some features of belt filer press you should consider before making a purchase.

This will not only ensure you make a worthwhile purchase, but it will also help increases efficiency and the ease of operation.

These features include:

Inclined Gravity Section

An inclined gravity section that ensures that majority of water is drained prior to the pressure sections. This increases the machine’s level of production.


Automation which reduces the need of an operator for the various stages of dewatering.

Our belt filter press machines feature automated and semi-automated controls, which ensure a constant production rate.

Effective Compression Zone

A compression (low-pressure) zone that allows gentle-pressing of the slurry or sludge while conditioning it effectively.

Control Screen

A wide touch screen control panel will ease the control of the equipment. The control screen should incorporate operator parameters, alarms and system timers.


The conveyor belt should not be made of non -corrosive material. Our machine incorporate rubber and stainless steel to manufacture the various parts of the belt filter press.

Self-enclosed Design

The self’-enclosed design aids in odor control by minimizing the foul air being emitted by the filter belt press.

Conditioning Zone

The conditioning zone should not be far from the press. The tanks should not also be too small.

Our belt press machines’ conditioning zone features rotating drums attached at the top of the press. The drum capacities range from 265 – 379 liters.

Additionally, you can opt for an in-line injector with the same capacity instead of a rotating drum.

Which are the available Belt Filter Press Designs?

Belt filter presses are designed or sized based on the amount of solid to be dewatered.

The manufacturer considers previous performance data, pilot tests, and surveys of already installed belt filter presses when coming up with a design.

The designs of belt filter presses do vary depending on the four major zones of the belt filter press.

These zones include the preconditioning (flocculation) zone, gravity drainage zone, low-pressure (compression) zone, and high-pressure zone.

These zones may either be made larger or smaller depending on the sludge, mashed fruit or slurry being processed.

Examples of design features that can be incorporated in a belt filter press include:

  • A tight house casing or fume hood; to contain volatile emissions, unpleasant odour, hazardous gases, and pathogens.
  • Automation; for easy operation and decreased human involvement.
  • More rollers, large filtration surface area, and an adjustable belt speed is incorporated in modern designs to increase the efficiency of the belt press.

How do you Optimize the Working of Belt Filter Press?

These are operations that ensure maximum output and if possible, low power consumption or input. Parameters you can adjust are:

  • Amount of dilution water
  • Pressure zone
  • Belt speed
  • Polymer Addition
  • The flow of the waste
  • Cleanliness of the belt/entire machine
  • Amount of feed

All these parameters are aimed at increasing the solid capture and obtaining a clearer filtrate. An important emphasis is to be put on having a clean, since this directly or indirectly affects the other parameters.

What Material is Belt Filter Press made of?

The belt in a belt filter press comprises three main materials; stainless steel, nylon, and polyester. These materials are corrosion resistant.

Most modern belt presseses use steel and high-grade plastics to make the various parts of the machine.

What are the Four Main Zones of Belt Filter Press?

Zones in belt filter press

 Zones in belt filter press

Preconditioning Zone

Commonly, it takes place in a tank. A flocculant or coagulant is added, making the solids to settle down.

Gravity Drainage Zone

The conditioned sludge moves onto the gravity drainage zone, which is inclined and has a porous belt. Water is drained from the sludge or slurry via gravitational force.

Low-pressure (Compression) Zone

It is wedge-shaped, comprising of two recirculating belts travelling over rollers. This movement further compresses and dries the sludge resulting in cake formation

High-Pressure (shearing) Zone

This zone has more rollers than the low-pressure zone. As a result, more compression is applied to the cake, significantly reducing the water content.

How much does Belt Filter Press Cost?

The cost of the belt filter press will vary depending on the size and the customization made.

In addition, the technology employed would also significantly influence the cost. Lastly, the output of the equipment will also add to the cost.

Generally, a belt filter price will range from as low as $3,000 to as high as $10,000.

How do you Customize Belt Filter Press?

Customizations of the belt filter press are mostly done in the design stage. However, some modifications can be made in the post-manufacture stage.

Here are some ways a belt filter press can be customized:

  • Fully automating the belt filter press
  • Self enclosing the belt filter press
  • Increasing the number of rollers
  • Making the belt membrane more porous
  • Changing the material used in the filter belt
  • Increasing the compression zone
  • Installing a larger tank for preconditioning

What are the Most Common Belt Filter Press Breakdowns?

Below are the common breakdowns and failures that belt filter press machines experience.

Low Sludge Flocculation

This may result from either low flocculent concentration, high concentration of sludge, or improper blending of the sludge and the flocculant.

To correct this, you can try a more concentrated flocculent or adjust the mixing of the flocculant and the sludge.

Excess Solid on the Filtrate

There is a possibility that either there is insufficient flocculation or the permeable filter has large gaps.

You can first check the concentration of the flocculant. Also, check if the flocculant is mixed in a correct proportion with the sludge. If there is no change, you should consider replacing the filter screen.

Highly Moist Filter Cake

The possibilities for this failure include insufficient flocculation, high speed of the filter press, inefficient strainer, or dirty strainer.

You should ensure that the strainer is clean for it to function immediately. You can also opt to use a more concentrated flocculant or adjust the flocculant and sludge mixing ratio. Also, ensure that the press belt is moving at a standard speed.

Sludge or Slurry Leakage

You are likely feeding the belt with too much slurry or sludge.  Alternatively, the filter screen takes time to filter, or there is poor flocculation.

To correct this, you can adjust the flocculation concentration and check whether the cleaning device is fully functional. Also, ensure that you are not overloading the conveyor belts.

Dysfunctional Roller

If the rollers aren’t rotating, there is a likelihood that the bearings are damaged. Try replacing the bearings to resolve this.

Abrupt Shut Down

The machine may abruptly shut down as a protection mechanism. Also, displacement of the filter screen may result in shutting down.

You can try to manually reset the mesh belt to the middle if it results from displacement of the filter screen. If it is a protective measure, release the protection switch.

Dysfunctional Barometer

In such a scenario, you are not able to adjust the barometer. This may be due to air leakage, blocked air filter, damaged pressure regulating valve, or failure of the air compressor to start automatically.

To resolve this, check the conditions of the air pipe, air compressor, and other pneumatic parts. Repair or replace them where necessary.

Machine not Starting

This may be due to the activation of the protection device or the locked emergency/overload switch.

Resolving this will include checking whether the emergency switch is locked and/or if the protection device is activated.

What are the Common Causes of Belt Filter Press Failure?

The belt filter press may fail due to various reasons. Outlined are the common causes of failure in most belt filter press machines.

  • Improper mixing of the flocculant and the sludge or slurry.
  • Blocked filter screen.
  • Inefficient strainer.
  • Damaged parts of belt filter press.
  • Poor or irregular maintenance.
  • Dirty filter belt.

How do you Maintain Belt Filter Press?

Maintaining a belt filter press is an essential part of operating the equipment. It increases the solid capture, life span, and efficiency of the machine.

You can carry out maintenance on the belt filter press by:

  • Replacing the filter belt after about 2,700 running hours. This should be easy since most of the filter belts are designed to be easily detachable.
  • Regularly observing the dosing, mixing, feeding, filtrate, and the cake several times a day. You should then make adjustments if necessary.
  • Consistently ensure that the air pressure gauge has stable air pressure numbers.
  • Completely wash the filter belt to ensure they are clean for full permeability. Also, increase the automatic filter cloth washing time.
  • Regularly lubricate the bearings and replace the damaged ones.
  • Check that the filter belt is not too close to the rollers as this may damage it due to continuous movement.
  • Filter the slurry or sludge before feeding it to the filter belt to remove any small stones or metallic materials, which may damage the filter screen.
  • Ensure you keep a detailed operation and maintenance record. This will help you come up with an effective and timely maintenance interval.
  • Lastly, follow the maintenance manual that our machines come with to efficiently maintain and operate the machine.

How does Belt Filter Press compare to Recessed Filter Press?

The belt filter press is used to separate the liquids and solids in liquids. Similarly, the recessed filter performs the same function with a major focus on recovering clear liquid (water) and a dry manageable solid (cake).

Below are some key highlights on how the two equipment differ.

Operation Interval

The belt filter press operates continuously. There is a continuous flow of the slurry or sludge as the dewatering process continues without any interruptions.

On the other hand, the recessed filter press starts with a high pumping of slurry.

However, this gradually decreases until the slurry is depleted. Upon depletion, the pumping is stopped until all the fed slurry has been completely dewatered.

Chemical Additives

The belt filter press employs the use of flocculants to thicken and bring together the solid components. This makes the solids larger and easy to dewater.

Conversely, a recessed filter does not need any chemical additives. This is because filter plates create enough pressure to produce drier cakes.


Belt filter press is largely affected by process changes. Thus, it ought to have a full-time operator who constantly checks and makes the necessary adjustments.

However, the periodic monitoring of the recessed filter press enables full automation. The machine can monitor and control pressure and flow automatically.


The belt filter press has several continuously moving parts, increasing the need for maintenance. Also, the exposure of the rollers, bearings, and belts to the sludge necessitates regular cleaning and replacement.

As for the recessed filter press, the interval operation reduces the consistency of maintenance and replacement. A cycle can last for only a few minutes, hence no much wear and tear.

Thus, it is conclusively correct to state that the belt filter press has a higher maintenance cost than the recessed filter press.

What can Increase the Cost of Operating Belt Filter Press?

Sludge dewatering

 Sludge dewatering

The cost of operating a belt filter press will mainly depend on the type of flocculant used and the condition of the sludge/slurry.

Here is a comprehensive summary of the factors that increase the cost of operating a belt filter press:

  • Type of flocculant – The more concentrated, the more effective it is. However, such flocculants are expensive and will add up to the operation cost.
  • The technology employed – If the belt press has a relatively low level of automation, there will be an increased need of operators. More operators or increased working hours of an operation increases the operation cost.
  • Type of slurry or sludge – A more aqueous slurry or sludge will require more flocculant use, which adds up to the operation cost.
  • Operator training – Depending on the operator’s experience, he/she may require much or less training. Therefore, the training may indirectly impact the operation cost. However, this is usually a one-time cost you have a good employee retention capacity.

How does Belt Filter Press compare to Screw Press?

A belt filter press uses rollers and filter belts to compress and dewater sludge and slurry. Conversely, a screw press uses a screw that squeezes the slurry forcing the liquid out and retaining the solid.

Also, the belt filter press is more versatile application-wise compared to the screw press. The use of screw press is limited to specific industries, such as wineries and fruit juice bottling industries.

Lastly, a belt filter press has a larger surface area for dewatering slurry and sludge, unlike the screw press. This makes the belt filter press more ideal if a cleaner filtrate and a drier cake are required.

What is the Function of Gravity Belt Thickener?

As the name suggests, the gravity belt thickener coagulates or thickens the sludge or slurry. As the sludge or slurry moves along the belt, water is drained, making it more solid concentrated.

It occurs in the second zone of the belt filter press. Notably, it requires less pressure since most work with the aid of gravitational force.

The belt is porous, allowing the liquid to drain. The filtrate is collected as the solid drops to the compression zone of the belt filter press.

How do you calculate the Capacity of Belt Filter Press?

The sludge dewatering capacity of a Belt filter press can be arrived at using the below formula.

Q (wet cake) = B • ξ • δ • v • s • γ • β

Where: Q wet mud cake – wet mud cake output t / h

B – Width of the filter (m)

Ξ – filter belt width utilization factor, generally take 0.85 ~ 0.9

Δ – Thickness of wet mud cake in meters (generally between 6-10mm or 0.006 – 0.01m)

V – pressure of the operational filter belt in meters per minute (generally around 3 – 6m / min)

S – unit operational time (generally 60min / h)

Γ – weight of wet mud cake in t/m3 (generally 1.03t / m3)

Β – solid phase recovery, generally  ≥ 95%

After which, to get the amount of feed:

Amount of feed = (wet cake with solid / feed solids) × Q wet cake (t / h)

What are the Dewatering Stages of Belt Filter Press?

The dewatering of sludge occurs in steps when using the belt filter press. Outlined below are the typical dewatering steps in a belt filter press.

  • Flocculation

The sludge is blended with a flocking agent in the conditioning tank, either polymer feed or polyelectrolyte.

This results in the clumping of the solid particles into flocs or agglomerate.

  • Gravity drainage

After flocculation, the sludge moves onto the main filter belt, made from a single woven fabric. It has a high flow rate. At this point, the sludge is dewatered through gravity.

  • Low-pressure dewatering

The sludge comes in contact with the pressure belt (top belt). Here it is gradually squeezed and sandwiched, resulting in the formation of a cake.

  • High-pressure dewatering

The action of the rollers together with the two belts further dewaters the cake, making the sludge a fully dewatered cake.

  • Dispense

The cake is then removed from the two belts using scrapper blades.

Which Quality Standards Should Belt Filter Press Conform to?

Belt filter press

Belt filter press

The key quality standards that belt filter press ought to conform to include:

  • BS 292; for the dimensions of cylindrical roller bearings and ball bearings.
  • BS 5304; the code of practice for machinery safety.
  • Various ISO relevant machinery standards
  • European health, safety, and environmental protection standards indicated by the CE marking.

What is Vacuum Belt Filter?

The vacuum belt filter or rubber belt filter has a vacuum box pressed against the belt’s underside. It also has grooves that are either machined or molded onto the belt.

The belt/vacuum box interface, where they come into contact, has to remain lubricated. Usually, this is done using water.

The grooves then drain the filtrate through holes into the vacuum box. The box can be compartmentalized to enable reflux or counter-current washing using wash filtrates from various compartments.

The rubber vacuum belt filter application is mainly in large-scale mineral mining and occasionally in paper/pulp dewatering applications.

What is the Speed of Horizontal Belt Filter?

Depending on the length of the belt, the horizontal belt filter can move at medium or high speeds of up to 200 feet per minute.

Ultimately, the belt speed should allow for the feed processing to form a cake at a constant vacuum. At the time the belt reaches the second roller, the final cake should be discharged.

At GoldCheer, we design and manufacture a range of fruit processing machines.

Whether you need fruit washing machine, fruit sorting machine, fruit crushing machine, or fruit pulping machine – they are all available.

Contact us now for all your belt filter press machines.

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