Use K-Tron's modular Loss-in-Weight feeders for materials with varying bulk density and for material handling automation. Loss-in-Weight gravimetric feeders are the best choice for long term accuracy, repeatability, quality documentation, and where dust control is a concern.
The tables below list available base loss-in-weight feeder models, grouped by feeder class, along with their associated feed rate range. To view available variations for a specific base model, and to download technical specifications, click on the model of interest.
NOTE: Clicking a link will connect you to the appropriate page on the K-Tron website (www.ktron.com) where you can select from available model variations and download technical information (log-in or registration required).
Twin Screw Models
Twin screw loss-in-weight feeders are most effective for pigments, sticky, bridging or flooding powders, fiberglass.
Feed Rate Range
|Variations and Notes||
|KT20||0.1 (0.004) to 200 (7.0)||suspension or platform design, compact version|
|T35||1.8 (0.063) to 2,500 (88)||suspension or platform design|
|T60||22 (0.78) to 7,200 (250)||suspension design|
|T80||25 (0.88) to 30,600 (1,070)||suspension design|
Vibratory Models For free-flowing abrasive or friable materials and fiberglass. On larger models, vibratory trays in three sizes can be combined with various hopper sizes to feed difficult materials like glass fiber.
Feed Rate Range
|Variations and Notes|
|KV1||0.2 (0.007) to 250 (8.8)||compact platform design|
|KV2||2 (0.07) to 2,500 (88.3)||suspension or platform design, fiberglass version|
|KV3||25 (0.88) to 8,500 (300)||suspension design, fiberglass version|
* Feed rates are approximate based on material characteristics
K4G Continuous Gravimetric Blender
The K4G Continuous Gravimetric Blender System (K4G-L Group) is designed with the specific requirements of the plastics processing industry in mind. The compact design and low space requirements of the K4G integrated system allow four or six feeders with K-Tron receivers to be easily grouped around an extruder inlet. Single stations are also available (K4G-L-BS60).
A wide variety of standard feeders can be integrated into the K4G single-point weighing system, depending on the feeding requirements. Single screw and Bulk Solids Pump feeders are designed for handling free-flowing bulk materials. Twin screw feeders handle powders and non-free-flowing materials.
The system is completely modular. Feeders and conveyors can be exchanged or removed as needed. The following feeder units are available in K4G versions:
BS60 Single Screw (up to 60mm diameter)
KT20 Twin Screw for powder
KQx Single Screw for low feed rates
BSP-100 Bulk Solids Pump
BSP-135 Bulk Solids Pump
For higher feed rates or special agitation needs, K2 Modular loss-in-weight feeders with three-point-weighing systems can also be incorporated.