Coperion K-Tron

Hygienic feeding of bulk materials in nutraceutical & pharmaceutical applications

Coperion K-Tron can provide single source solutions for all your feeding and conveying needs in the pharmaceutical and nutraceutical industries. The complete Coperion K-Tron line of pharmaceutical equipment is engineered to meet the rigid requirements of the industry, including strict adherence to cGMP guidelines and standards, as well as the use of FDA approved materials of construction. Our Coperion K-Tron pharmaceutical design feeders are easily disassembled. All units are specifically designed to meet the cleaning requirements of the end user, including options on complete wash-in-place and rinse-in-place cleaning.

Additional design options available include the ability to provide complete product containment during feeding and product transfer, isolation in glove boxes, and executions suitable for use in hazardous environments according to ATEX and NEC guidelines. Specialty designs are available for cluster feeding and refill of continuous operations, with modifications to allow for complete accessability in areas with tight space limitations, or when integrating into continuous processes such as blending, granulating, or extrusion.

Coperion K-Tron can provide an extensive array of validation documentation including FDS, FAT and SAT-IQ and SAT-OQ protocols for both standalone feeders/conveyors and complete systems. Controls options are available to meet CFR 21 Part 11 compliance. Integration with a variety of communications platforms including Modbus, Allen Bradley, DeviceNet, Profibus, etc. are available.

Features & Benefits

  • Volumetric and gravimetric configurations
  • Feeder configurations available include single or twin screw, vibratory tray, microfeeding as well as liquid loss-in-weight feeders
  • All product contact surfaces are made of stainless steel
  • Material certification and surface finish confirmation on product contact surfaces
  • Integrated horizontal agitator to ensure optimal screw fill
  • Gas purging connections for all shaft seals
  • Exclusive Coperion K-Tron Smart Force Transducer (SFT) digital weighing technology with true 1:4,000,000 in 80 ms resolution for optimal accuracy, critical in continuous applications
  • Minimum surface finish on all contact surfaces of 0.8 micron Ra (25 micro inches Ra). Higher surface finishes optional
  • All seals, gaskets and O-rings are constructed of FDA approved materials
  • Modular design
  • Patented SFT weighing technology
  • State-of-the-art controls

Related Industries

  • Pharmaceutical

Areas of Application

  • Feeding of mills and micronizers for both excipients and APIs
  • Pharma extruder feeders including hot melt and wet granulation extrusion
  • Single and multiple ingredient dispensing and batching, including reactor loading
  • Lubrication of tablet press tooling
  • Feeding of continuous pharmaceutical processes including mixing/blending, wet and dry granulators, coaters, and drying.

Available Models

K-PH-CL-SFS-KT20 compact twin screw gravimetric feeder

Twin screw feeders are ideal for handling difficult materials such as active pharmaceutical ingredients (APIs), excipients, lubricants and pharmaceutical granulations. Coperion K-Tron offers the PH-KT20 in either volumetric or gravimetric configurations.

Feed Rates

   Twin concave screws Twin auger screws
Min. Max. Min. Max.
coarse - dm3/h 0.4 28 0.4 31
coarse - ft3/h 0.01 1 0.01 1.1
fine - dm3/h 0.14 10 0.15 11
fine - ft3/h 0.004 0.3 0.004 0.4

Materials of construction product contact parts: Stainless steel, DIN 1.4404/1.4435 (AISI 316L)

Hazardous location options (ATEX, NEC) available.

Consult Product Specification Sheet for more details.

Download Product Specification Sheets

K-PH-ML-SFS-T20 twin screw gravimetric feeder with square hopper

Twin screw feeders are ideal for handling difficult materials such as active pharmaceutical ingredients (APIs), excipients, lubricants and pharmaceutical granulations. The PH-T20 features a square hopper for optimal product flow. Coperion K-Tron offers the PH-T20 in either volumetric or gravimetric configurations.

 Feed Rates

   Twin concave screws Twin auger screws
Min. Max. Min. Max.
coarse - dm3/h 0.3 20 0.5 45
coarse - ft3/h 0.011 0.7 0.018 1.6
fine - dm3/h 0.1 9 0.15 16
fine - ft3/h 0.004 0.32 0.005 0.56

Materials of construction product contact parts: Stainless steel, DIN 1.4404/1.4435 (AISI 316L)

Hazardous location options (ATEX, NEC) available.

Consult Product Specification Sheet for more details.

Download the Product Specification Sheets

K-PH-ML-KT35 twin screw gravimetric feeder

Twin screw feeders are ideal for handling difficult materials such as active pharmaceutical ingredients (APIs), excipients, lubricants and pharmaceutical granulations. Coperion K-Tron offers the PH-KT35 in either volumetric or gravimetric configurations.

Feed Rates

   Twin concave screws Twin auger screws
Min. Max. Min. Max.
coarse - dm3/h 4 1450 4 1506
coarse - ft3/h 0.14 51.2 0.14 53.2
fine - dm3/h 1.4 502 1.5 530
fine - ft3/h 0.05 17.7 0.05 18.7

Materials of construction product contact parts: Stainless steel, DIN 1.4404/1.4435 (AISI 316L)

Hazardous location options (ATEX, NEC) available.

Consult Product Specification Sheet for more details.

Download the Product Specification Sheets

K-PH-ML-KS60 gravimetric feeder

Single screw feeders are ideal for handling free-flowing materials such as granular excipients. Coperion K-Tron offers the KS60 in either volumetric or gravimetric configurations.

Feed Rates

   Auger screw Spiral screw
Min. Max. Min. Max.
coarse - dm3/h 0.1 4200 1 4200
coarse - ft3/h 0.004 148 0.035 148
fine - dm3/h 0.5 2600 0.06 2600
fine - ft3/h 0.018 92 0.002 92

Materials of construction product contact parts: Stainless steel, DIN 1.4404/1.4435 (AISI 316L)

Hazardous location options (ATEX, NEC) available.

K-PH-ML-D5-KV2 gravimetric vibratory feeder

Vibratory feeders are ideal for gravimetric feeding of very free flowing bulk materials as well as limited applications for certain difficult flowing pharmaceutical powders.

Feed Rates

   60x40 mm tray
Min. Max.
dm3/h 2 900
ft3/h 0.07 31.8

Materials of construction product contact parts: Stainless steel, DIN 1.4404/1.4435 (AISI 316L)

Hazardous location options (ATEX, NEC) available.

Consult Product Specification Sheet for more details.

Download Product Specification Sheets

Additional Pharmaceutical Feeder Options

12 mm Micro Screw Feeder with protective enclosure

Coperion K-Tron’s family of twin and single screw microfeeders has been specially designed to provide maximum accuracy at minimal feed rates, which makes these feeders ideal for use in the pharmaceutical processing industry. Unique design features ensure that high value ingredients are fed accurately at rates as low as 32 g/h with minimal residual material left in the feeder.

For more information visit the Micro Screw Feeders page.

Pharma design liquid Loss-in-weight feeder on skid

Coperion K-Tron’s liquid loss-in-weight feeders provide accurate continuous volumetric or gravimetric flow control of liquids. The highly accurate gravimetric units combine the pump and tank with a suspension scale or platform scale; the feed pump for metering the material is located outside the scale area.

For more information go to the Liquid Feeders page.

Frequently Asked Questions

What is best feeder configuration for difficult flowing pharmaceutical powders?

Due to the cohesive nature of most excipients and API's, the twin screw configuration is best suited to difficult flowig powders. The self-wiping effect of the twin screws avoids the buildup issues and inconsistent flow typical when using single screw designs. In addition, for extremely difficult powders which might have a tendency to bridge or rathole, Coperion K-Tron can also provide the innovative ActiFlowTM Bulk Solids Activator device to ensure consistent screw fill and optimal accuracy.

For cases where the feeders may be susceptible to back pressures or vacuum from the processes below, our newest technical innovation is available: electronic pressure compensation (EPC).  This package is deal when feeding into continuous or semi continuous processes such as mixers, mills/micronizers or extruders, for optimal accuracy in feeding.

To find out more, download our FAQ sheet in the downloads section below.

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