Bottom-up filling
Fills powder from the lower part of the bag upward to help reduce product free fall, dust escape and air entrapment.
KBF Series
KBF Series Bottom-Up Powder Filling Systems
KBF Series systems are designed for fine, ultrafine, sticky and dust-prone powder materials that require controlled filling, product deaeration and cleaner bagging conditions. The bottom-up filling method helps reduce product free fall, dust escape and air entrapment during bagging.
Bottom-up filling · Fine / ultrafine powder · Sticky materials · Controlled filling · Dust control
KBF Filling Process Overview
KBF systems fill powder materials from the lower part of the bag upward, helping reduce free fall, dust escape and air entrapment during filling. The filling spout, bag holding area, weighing and feeding system, deaeration arrangement and dust collection connection are configured according to material flowability, bulk density, air content, dust level and bag specification.
Controlled Filling for Powder Materials
The feeding process follows a controlled feeding curve, smoothly transitioning from high-rate feeding to fine dosing as the target weight is approached. This helps balance filling speed, weighing accuracy and stable powder flow.
KBF Model Range
Select a KBF model according to target output, powder characteristics, bag specification, transfer layout and complete line configuration.
Both KBF-1025 and KBF-1030 are single-head bottom-up filling systems. The difference is the bag transfer layout. KBF-1025 uses side-transfer bag discharge, while KBF-1030 uses forward-transfer bag discharge for shorter transfer cycle time and higher single-head output. KBF-2060 is a dual-head bottom-up filling system for higher-output powder bagging lines while maintaining controlled filling and dust containment.
KBF-1025
Up to 250 bags/hour
Single-head bottom-up powder filling system with side-transfer bag discharge.
Application examples
Glucose · Milk-powder-like Products · Sticky Powders · Air-entrained Powders
Configuration notes
Single-head filling · Side-transfer layout · Bottom-up filling · Controlled filling · Dust containment
KBF-1030
Up to 300 bags/hour
Single-head bottom-up powder filling system with forward-transfer bag discharge for shorter transfer cycle time.
Application examples
Glucose · Milk-powder-like Products · Sticky Powders · Air-entrained Powders
Configuration notes
Single-head filling · Forward-transfer layout · Bottom-up filling · Controlled filling · Dust containment
KBF-2060
Up to 600 bags/hour
Dual-head bottom-up powder filling system for higher-output powder bagging lines while maintaining controlled filling and dust containment.
Application examples
Starch · Flour · Premix · Food Additives · Feed Additives · Milk-powder-like Products
Configuration notes
Dual-head filling · Forward-transfer layout · Higher output · Controlled filling · Dust containment
Typical Materials
Glucose · Starch · Flour · Premix · Food Additives · Feed Additives · Milk-powder-like Products
Powder Handling Challenges
Sticky powders · Dust-prone powders · Air-entrained powders · Poor-flowing powders
Key Features
Dust containment
The filling spout, bag holding area and dust collection connection can be configured to help reduce dust leakage around the bag mouth.
Product deaeration
Product deaeration and bag-mouth air release can help reduce entrained air, improve bag shape and support downstream conveying and palletizing.
Controlled filling
The feeding process follows a controlled feeding curve, smoothly transitioning from high-rate feeding to fine dosing as the target weight is approached.
Application-specific filling spout
Filling spout design can be configured according to powder characteristics, bag type and dust control requirements.
Easy operation and maintenance
PLC-based control and access-friendly structure support operation, inspection, cleaning and routine service work.
Optional Configurations
Product deaeration and bag-mouth air release · Secondary dosing · Full stainless steel construction · Coding / printing interface · Quick adjustment for bag sizes
Line Integration
KBF systems can be integrated into complete powder bagging lines with conveying, bag closing, check weighing, metal detection, palletizing and pallet load covering equipment when required. These downstream modules are selected according to project layout, product requirements and automation level.
Engineering Selection Notes
KBF configuration depends on powder flowability, bulk density, air content, stickiness, dust level, target bag weight, bag material, bag dimensions, filling speed, deaeration requirements and plant layout. KWLE engineers evaluate these factors to select the filling spout, feeding method, deaeration arrangement, dust collection connection and complete line configuration.