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Fluidized Bed Wurster Coater Sale Purchase

We are manufacturers of FBD Wurster Spray Coating Equipment Machine complete Machine in SS316. Complete machine with air filter, heat exchanger, product container, filter, blower, compressor Instrumentation & PLC and the working platform from plinth level is offered on turn-key basis. Our buyer's staff will be trained on our working machine. The offer will not be vague with many extras as every thing is be included.

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Wurster spray coater is essentially a taller version of fluidized bed drier. Plant scale wurster machine is about 5meters (17 feet) tall and it needs about 6.5meters (22feet) clear space from the ground. A Wurster equipment can be easily used as a fluidised bed drier by removing the spray nozzle and the partition in the product container. The bottom plate needs only minor modification. It can be used as a top spray granulation and coating machine by retrofitting a top spray nozzle. You can have both the units i.e. top-spray and bottom-spray to begin with by just adding a top-spray nozzle to it.

The complete assembly consists of an Air handling unit followed by a Heat Exchanger. Filtered air is heated and it enters the wurster tower. The product particles are fluidized in the tower and coated by spraying an emulsion or any other coating liquid from the bottom. After fluidization, the exhaust air passes through a an expansion chamber and then a filter system. Air for fluidization is sucked by a blower which is attached to the top exit of the tower. A cyclone separator and/or scrubber may be required for better control of air pollution. Standard parts include a peristaltic pump for emulsion or liquid spraying, mixing tank for coating liquid, an Air compressor, a dry air unit for instruments and filter cleaning and instrumentation for automatic operation. Our offer also includes supporting structures and the platform. Safety flap is fitted at two places; one on the top dish and the other on the shell.

Offer for Plant Size Wurster Coating Machine. The product container volume will be 200 liters to 1000 liters.

Air Handling Unit: It consists of a filter followed by a heater.
Filter: A pre-filter of 20 microns, followed by a final filter of 5 microns is used.
For a very strict air quality requirement, a HEPA filter may be used. Use of finer filter will increase the blower load. This offer is for 5 micron filter
Heater: Shell & Tube type heat exchanger, fitted with continuous tension wound crimpled fin tubes is used. Heating may done by steam or by thermic-fluid.
The MOC (Material of Construction) is SS316.

Main Tower: A plant size machine requires not less than 5 meters (17 feet) height. It consists of a jacking system followed by product container fitted with a wurster spray nozzle, expansion chamber and filter unit. The MOC (Material of Construction) is SS316.
Product Container: The product container is trolley mounted conical vessel with a wire-mesh at the bottom placed on a specially perforated bottom plate. In the center of the product container, there is a coating partition that has an arrangement to adjust the gap from the bottom. This adjustment can be done from outside the container. A sight glass and light glass are fitted at the bottom to observe the performance of fludization and wurster action. A sampling port is provided. Two such containers are offered with each machine to ensure minimum down town in loading and unloading a batch.
Spray Nozzle: A specially designed wurster spray nozzle enters the bottom plate. The nozzle is easily removable and it gives a fine spray for the most desirable coating.
Expansion chamber: Ample space is provided above the product container for the fluidised material to remain suspended after the spray.
Filter: The reverse purging by compressed air in cage filters is used. The cages are divided in to 4 parts and each part is cyclically shaken for 5 seconds, every 2 minutes.
Blower: Blower is generally kept on the mezzanine (or it may be placed some distance away). We offer body-casing and the fan made of SS316. The attached motor and bearing etc are not available in SS316 and it may be fitted as per availability. The blower will be ___ HP
Compressor: A compressor is needed for spraying and for the filter purging. It is included in the offer.
Dry Air Unit: Provided for Air purging and instrumentation.
Mixing Tank: Emulsion storage & Mixing Tank for a batch size is included.
Structure: Support structure, ladder and mezzanine is included. The MOC (Material of Construction) is MS. The buyer may cover it with FRP or with SS-sheet.
Peristaltic Pump: 1-1800 ml/minute in SS316 GMP model is included.
Instrumentation & Controls: The main instruments and controls consist of:
1. Venturi Flow meter to measure the air flow rate and control it. A PLC based Venturi meter is used for the same. A Variable Frequency Drive VFD is used to control the speed of the motor to give a constant desired flow rate.
2. Compressed Air is used to Shake Filter Cloth with 5 seconds per 2 minutes. Auto Control of 4-Alternate Section every 30 seconds. Solenoid valves may be used for cyclic purge of bags.
3. Temperature Indicator with alarm set at __C is used monitor temperature of the inlet air and of the product container. Exit air temperature is also measured. PLC can be set to shut-off the system against any parameter that is sensitive.
4. Pressure indicators are used to measure the pressure of spray atomizing air and of shut-off needle.

PLC Controls and eight days hands down training for two people of buyers company in our running plant is included.

Please check theory & logic wurster coating machine

The price of the machine is 200K USD FOB Mumbai, India for a -200 liters product container machine in SS316
The price of the machine is 220K USD FOB Mumbai, India for a -400 liters product container machine in SS316
The price of the machine is 240K USD FOB Mumbai, India for a -600 liters product container machine in SS316
The price of the machine is 260K USD FOB Mumbai, India for a -800 liters product container machine in SS316
The price of the machine is 280K USD FOB Mumbai, India for a 1000 liters product container machine in SS316

Machines are also offered in the following ranges:
Laboratory Wurster Coater from 1 liter per batch to 10 liters per batch a single machine with interchangeable product bowl is good enough in the entire range.
Small Wurster Coater of 25 liters/batch, 50 liters/batch, 100 liters/batch a single machine with interchangeable product bowl is good enough in the entire range.

For calculating the batch size in kg use the formula: 90% of Volume in liters*Bulk Density of product. Select a size not more than 3 times the minimum batch size that you anticipate (Better still 2 times the minimum batch size that you anticipate).

Please send your enquiry to ajk@wurstercoating.com.

Wurster Coating Company
Ankleshwar Gujarat  and Mumbai Maharashtra, India.
Every thing about Wurster Coating Process Parameters, Principle and Scale up will be covered here.
We offer encapsulated chemicals.

1-may-22