What is a VLM?

A Vertical Lift Module (VLM) is an automated storage solution designed to optimize space and improve warehouse efficiency. Using mobile extractors, the system retrieves drawers located at the front or back of the module and delivers them to an ergonomic access window. This setup ensures fast, organized access to goods while maximizing floor space utilization.

One of the primary advantages of the VLM is its ability to capitalize on warehouse height, with models reaching up to 49 feet. This frees up valuable floor space for other uses. Operating on the "Goods-to-Person" principle, the VLM automatically brings the requested items or drawers to the user. When integrated with an ERP system, orders can be sent directly to the VLM, which sequences the retrieval of trays to maximize the pick rate and boost productivity.

Some VLM models are equipped with intelligent sensors that dynamically adjust the position of trays based on their height and the available space, ensuring optimal use of the internal storage area. Additionally, pick windows can be configured at the front or rear of the module, or even at different heights, making the system adaptable to specific warehouse needs.

The VLM offers numerous benefits, including up to 80% space savings by utilizing vertical height. By improving picking accuracy and speed while securing inventory access, it represents a modern, high-performance solution for streamlining storage operations and meeting the demands of industrial environments.

What is a Carousel?

A vertical carousel is an automated storage solution designed to maximize vertical space usage while simplifying access to goods. Various types of vertical carousels exist, such as tray carousels, tire carousels, and coil carousels. This article focuses on the vertical tray carousel, a system that shares similarities with a VLM while offering distinct features.

Designed for high-density product storage, the vertical carousel can reduce floor space requirements by up to 70%. However, with typically only three possible tray height options, its storage volume optimization is less refined compared to a VLM and more closely resembles standard shelving. The carousel is particularly well-suited for configurations using standardized bins of uniform dimensions and heights on each tray, where its advantages are most evident. The trays rotate around a vertical axis to deliver requested items to an ergonomic picking station.

The benefits of a vertical tray carousel include optimal space utilization, reduced operator movement, improved ergonomics, and a lower initial cost. Available at MSK Canada, these systems offer an efficient and adaptable storage solution for various industries, enabling space optimization and streamlined operations.

Key Differences Between a VLM and a Carousel

Which System to Choose?

The choice between a Vertical Lift Module (VLM) and a carousel primarily depends on the specific needs of your business and the unique characteristics of your storage space. If you lack floor space but have significant vertical height available, the VLM is an ideal option. It maximizes the use of height while offering high storage capacity, superior operator ergonomics, and advanced technological features. Key benefits include optimal space management by minimizing unused gaps between drawers, seamless integration with enterprise management systems (ERP, WMS, or MES), and increased operational speed.

Conversely, if your needs call for a solution tailored to a space with limited height, the carousel may be a more suitable option. Its design efficiently manages small to medium-sized items while optimizing the available space at a lower cost. Along with its efficiency, the carousel provides significant advantages such as reduced operator movement and improved ergonomics, making workflows smoother and safer.

Each solution offers distinct benefits that can be tailored to your operational requirements, such as item size, picking volumes, or budget constraints. Conducting a thorough analysis of your current processes, spatial limitations, and long-term goals is essential to determine the system best suited to your needs.