Home » Outdoor Automated Storage Solution – Vertical Lift Module (VLM)

Outdoor Automated Storage Solution – Vertical Lift Module (VLM)

As factory space becomes increasingly limited and warehouse rental costs continue to rise, businesses are seeking breakthrough storage solutions. One of the most advanced trends today is the outdoor Vertical Lift Module (VLM) smart storage system — a solution that helps optimize space utilization, improve operational efficiency, and reduce operating costs.

Giải pháp lưu trữ thông minh ngoài trời với hệ thống Vertical Lift Module (VLM)

What is an Outdoor Vertical Lift Module (VLM)?

Vertical Lift Module (VLM) is an automated vertical storage system that operates much like an industrial “vending machine” Operators simply press a button or scan a barcode, and the required tray is automatically delivered to the access opening quickly and accurately.

Implementing a VLM offers multiple advantages:

Automated, on-demand retrieval of goods
Accurate, real-time inventory control
Reduced picking time and minimized human error

The key difference of an outdoor VLM lies in its ability to be installed outside the warehouse or factory building. The system is fully enclosed and engineered to withstand weather conditions, with temperature and humidity control, allowing businesses to utilize outdoor space while maintaining safety and operational efficiency.

Outstanding Benefits of Outdoor Vertical Lift Modules

1. Maximum utilization of indoor space
Installing VLMs outdoors frees up 100% of indoor floor space previously used for storage, allowing it to be repurposed for production, assembly, or packaging. This cost-effective solution eliminates the need for costly facility expansion or renovation when storage capacity is exceeded.

2. Improved safety and reduced congestion
By relocating storage outside, traffic conflicts between forklifts, warehouse operators, and production teams are significantly reduced. This improves workplace safety and streamlines internal material flow.
Despite being installed outdoors, VLMs still provide fast and convenient access through strategically placed access openings serving production, packaging, or multi-level facilities.

3. Enhanced security
Outdoor VLMs offer a high level of security for high-value or sensitive materials. Controlled access via RFID cards, user accounts, or authorization systems ensures strict inventory control—critical for industries such as electronics, aerospace, and pharmaceuticals.

4. Scalable and future-ready
Outdoor-installed VLMs can be easily expanded vertically or horizontally without disrupting internal warehouse operations. The modular design enables businesses to adapt quickly to growth, increasing SKUs, or seasonal demand.

5. Fast return on investment
Although outdoor VLM installations may require a higher initial investment, the recovered indoor space helps avoid facility expansion and reduces long-term costs. According to Kardex, 80% of customers achieve ROI within the first year, with 33% seeing returns in as little as three months.

6. Flexible installation options
Outdoor VLM systems can be customized to suit different site conditions and operational requirements, including:

Vertical outdoor installations
Underground installations (pit-mounted VLMs)
Through-roof or “dome” installations, keeping the machine inside while utilizing rooftop space

These configurations help maximize space efficiency while leveraging existing HVAC systems.

Outdoor Automated Storage Solution - Vertical Lift Module (VLM)

Applications

Manufacturing Plants: Increase production space, reduce layout congestion, and improve operational efficiency.
Hospitals: Relocate medical supplies outdoors to free up space for additional patient beds and treatment areas.
Urban Warehouses / Fulfillment Centers: Optimize storage capacity in areas with high real estate and rental costs.
Pharmaceutical & Medical Device Industries: Provide clean, secure storage solutions compatible with cleanroom environments.
Low-ceiling warehouses: Utilize outdoor height to expand storage capacity without constructing additional floors.

Are Outdoor Vertical Lift Modules safe?

Kardex outdoor VLM systems are engineered to withstand extreme weather conditions and seismic activity and are TÜV-certified. With reinforced structural frames, heavy-duty components, and vibration-absorbing technology, these systems ensure stable, reliable, and long-term operation—making them a sustainable solution aligned with smart automation trends.