Grit Classifier for Producing Mortar and Grout

General Description

Sika is a global leader in innovation and sustainability, bringing over a century of expertise to developing and manufacturing systems and products. Operating in 102 countries with more than 400 production facilities, Sika delivers innovative technologies to customers around the world. The company serves diverse sectors including commercial and residential construction, transportation, marine, automotive, and renewable energy manufacturing. In 2024, Sika’s workforce of over 34,000 employees achieved sales of over 15 billion dollars.

Sika constructed a new 250,000-square foot production facility in Bridgeton, NJ to meet increasing demand for mortars, and high-performance cementitious grouts for residential and commercial construction. KWS provided a grit classifier as part of a system for producing various grouts and maximizing raw material usage. The KWS grit classifier separates Portland cement and fine sand from water and chemicals. Drawing on extensive experience with grit classification applications, KWS successfully developed a solution tailored to their needs.

KWS Grit Classifier Separates Portland Cement and Fine Sand from Water and Chemicals

Design Parameters

Product Type: Various Grout Mixes
Material Density: 50 to 105 Lbs. per Cubic Foot
System Capacity: 10 Cubic Feet per Hour
Duty: Intermittent

KWS Advantages

Engineers from Sika and KWS collaborated to create a complete grit classification and separation system. The KWS Grit Classifier installed in a trench to convey bulk solids up through an existing wall. Water and chemicals are separated from the solids and pumped back into the process. Using 3D CAD modeling, KWS confirmed the classifier would clear the wall opening and optimized support placement. This design approach facilitated seamless installation execution in the field.

KWS Special Features

KWS shaftless spirals represent industry-leading durability and reliability, engineered to deliver sustained performance over extended operational periods. The KWS Grit Classifier incorporated high-performance, abrasion resistant Xylethon liners specifically designed to withstand wear. KWS shaftless conveyors also feature our proprietary one-piece flanged drive shaft as standard equipment. The drive shaft is precision-machined from solid bar stock and backed by a lifetime warranty.

KWS provided a 4-inch drain system with flanged connection to facilitate complete material evacuation for equipment cleaning and maintenance operations. The drain is strategically positioned at the conveyor’s lowest elevation point on the non-carrying side to minimize potential material accumulation and prevent system blockages.

Grit classification applications require water containment at the inlet hopper end. KWS designed the system with full seam welds and eliminated the tail bearing and seal to ensure a watertight enclosure. Each unit is leak-tested in our facility before shipment to guarantee quality.