Screw Conveyor for W.R Grac

General Description

W.R. Grace is a global leader in specialty chemicals, delivering advanced materials, catalysts, and technology-driven solutions that help industries improve performance and create products that enhance everyday life. W.R. Grace develops innovative chemical applications and manufacturing processes that solve complex challenges, improve efficiency, and support business growth.

W. R. Grace approached KWS to replace an existing tubular screw conveyor at its Baltimore, MD facility. The primary objective was to improve cleanability and maintenance by incorporating removable covers for easier access into the new conveyor.

New KWS Screw Conveyor is Easy to Clean and Operate

Design Parameters

Product Type: Magnapore Catalyst
Material Density: 50 Lbs. per Cubic Foot
Capacity: 2 Cubic Feet per Hour
Design Temperature: Ambient
Duty: Intermittent

KWS Advantages

KWS collaborated closely with W.R. Grace to develop a direct replacement for the existing conveyor while incorporating the additional features requested by the customer. KWS supplied 3D models of the screw conveyor to integrate into the facility layout and verify that there were no dimensional conflicts or installation interferences. As a result, the equipment was installed seamlessly, minimizing downtime and ensuring a smooth project execution.

KWS Special Features

The new KWS screw conveyor was constructed from 316 stainless steel with all product-contact surfaces continuously welded and polished smooth to a 150-grit finish, eliminating any pits, cracks, or crevices. This finish makes the conveyor easier to clean, minimizes the risk of bulk material contamination, and helps maintain optimal process hygiene. The smooth, uniform interior surface also improves material flow and reduces the potential for product buildup during operation.

To improve access without compromising safety, KWS supplied removable clamp-style covers, each fitted with an interlock safety switch. A keyed actuator mounted on the cover’s leading edge trips the safety contacts the moment a cover is opened. This tamper-resistant design guards against accidental startups and unauthorized access, keeping operators safer during inspection, cleaning, and maintenance.

To further protect operators, KWS added shaft guards at both the drive and tail ends of the conveyor, enclosing the rotating shafts and reducing the risk of accidental contact. With more than 45 years of experience in bulk material handling, KWS engineers shaft guarding solutions for a wide range of applications, all built to meet OSHA and MSHA (Mine Safety and Health Administration) safety requirements.