Screw Loader

It is an automatic dosing equipment specially designed for weighting solid additive ingredients requested by the PVC formula. The solids can be powders, granules or crushed chips from recycling. Each solid additive is corresponded to 1 stainless steel bin with individual screw feeder. Inverter controlled screw feeders feeding each additive on the scale one by one according to formula. The whole dosing cycle only takes several minutes automatically within 0.3% accuracy. The dosed a batch size of additives are then fed into mixer with PVC resin and high proportion filler calcium carbonate for mixing process.

Product Description

To feed the raw materials to mixer can be manual dumping or via auto-loader either screw loader or pneumatic vacuum loader. It is also a trade-off between labor cost and automation.

When it comes to mass production of PVC products, automatic loading of raw materials to mixers and extruders is vital for the consideration of continuity and efficiency.

Kenneth’s screw loader is equipped with a stainless steel bin. Use the stainless steel made screw and barrel driven by motor to convey solid materials from ground to PVC heating mixer placed high. It is the most common loader used for:

Simple configuration and reliable

Easy for maintenance


Level switches for monitoring&control

Anti-bridging device is optional for high bulk density powder solids

Manual operation or integrated to automatic program

Alarm for reminding lack of material

Dust collector or filter is optional

Product Features

Modular Designed, Maximum Flexibility & Mobility

Kenneth mixers are modular designed with maximum flexibility for various applications. Each mixer is tailored by different PVC recipe, processing and throughput requirements based on Kenneth’s expertise in the area of PVC compounding and mixing.

Whole Series, Full Range

Kenneth has a full range series of heating mixers, capacity from lab scale 10 liter to industrial production scale 1,500 liter. Full range series of cooling miers, capacity from 200 liter to 6000 liters. Throughput of PVC compounds can be 30kg/hr(SHR-10) to 4,000kg/hr(SHR-1500).

Solid Materials, Precise Assembled, Quality Crafted

The machine structures of Kenneth heating mixer are made of carbon steel been welded together by experienced welder. Inner surface of mixer tank, mixing tools, discharger inner surface wherever contacted with resin are made of stainless steel 304. The solid machine structures minimize vibration meanwhile the precise assemble of all mechanical parts ensures a comfortable noise level even at intensive mixing operation.

Reliable Components

Kenneth mixer adopts industrial standard electrical components from world renowned brands i.e Siemens, Schneider, OMRON, ABB etc. It is a consideration of quality assurance and easy sourcing for replacement of broken parts wherever the customer is all over the world.

Electrical Safety & Certificate

Safety of equipment and protection of operators are the top guideline throughout the design& engineering of both mechanical and electrical aspects. Strict process control during fabrication and assembly of single machinery or whole line. Kenneth mixers and mixing lines offer multiple certificates as requested e.g. CE, UL, CSA etc.

Intuitive Operation&Diverse Control Modes

Depends on the automation level and related accessories, the control of mixing process can be manual, semi-automatic or fully automatic. The first 2 control modes are usually achieved via button operation on the electrical cabinet. While the fully automatic mode requires an additional touch screen(Siemens S7 PLC) which visualizes all processes vividly, integrates all control operations and real time monitoring of all components etc. Remote maintenance module is optional for remote diagnosis of malfunctions or update of control system.

Product Specification

Feeding Motor Power(kW)0.751.11.51.5
Anti-bridging Motor Power(kW)0.550.751.11.75
Loading Capacity(kg/hr)600100020003000
Bin Capacity(kg)80150200250

Product Video

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