In today’s high-demand logistics environment, automated storage is no longer an optional upgrade — it’s the backbone of modern warehouse efficiency. As labor costs rise and square footage becomes more expensive, companies are turning to vertical lift storage modules (VLMs) and other automated storage and retrieval systems (ASRS) to stay competitive.
But not all VLMs are built the same. From global brands like Kardex and Modula, to more specialized providers like Hänel and Vidir, this guide breaks down the key differences, advantages, and applications of today’s top automated storage technologies.
🔍 What Is Automated Storage?
Automated storage refers to systems that use computer-controlled mechanisms to automatically store and retrieve items. These solutions minimize manual labor, reduce picking time, and maximize available warehouse space. The most common form in space-constrained environments? The Vertical Lift Module.
What Is a VLM?
A Vertical Lift Module (VLM) is a type of automated storage solution that vertically organizes trays in two columns. A central extractor automatically retrieves items and delivers them to the operator at an ergonomic access point. This “goods-to-person” method reduces walking, improves pick accuracy, and significantly cuts down on wasted space.
Benefits of VLMs and Automated Storage
Vertical Lift Modules and other automated storage solutions offer a range of measurable benefits that go far beyond saving space. One of the most significant advantages is how much vertical real estate they reclaim. Instead of relying on traditional shelving that eats up valuable floor space, VLMs use ceiling height — often recovering up to 90% of the area currently occupied by shelving or racking.
In terms of efficiency, automated storage reduces the time employees spend walking aisles, searching for parts, or using ladders and lifts. This directly improves pick rates and throughput, allowing facilities to fulfill more orders with the same—or even fewer—staff.
Accuracy is another major win. With software-driven systems managing inventory, the likelihood of mispicks and inventory errors is drastically reduced. These systems also integrate with warehouse management software (WMS), enabling real-time inventory visibility and better stock control.
From a safety and ergonomics perspective, VLMs are designed to bring items directly to the operator at a comfortable working height. This minimizes the risk of injuries from bending, reaching, or climbing—common hazards in traditional warehouse setups.
Finally, automated storage systems offer better inventory security. Access can be restricted via login credentials or ID badges, and activity can be tracked for auditing purposes, making it ideal for storing high-value, sensitive, or regulated items.
Comparing the Top VLM Brands: Modula vs. Kardex vs. Hänel vs. Vidir
Let’s compare the key players in the VLM and automated storage space, so you can decide which solution makes sense for your facility.
| Feature | Modula | Kardex Remstar | Hänel | Vidir |
|---|---|---|---|---|
| Origin | USA & Italy | Germany | Germany | Canada |
| Flagship Products | Modula Lift, Modula Slim | Shuttle XP, Megamat RS | Lean-Lift, Rotomat | Vertical Modules, Pan Carousel |
| Max Tray Load Capacity | Up to 2,200 lbs | Up to 1,000 lbs | Up to 1,000 lbs | Varies |
| Max Height | Up to 52 ft | Up to 75 ft | Up to 66 ft | Custom |
| Software Integration | Modula WMS, ERP-ready | PowerPick Global, SAP plugins | HänelSoft®, SAP certified | Custom API, 3rd-party friendly |
| Notable Industries | Automotive, Aerospace, MRO | Pharma, Distribution, E-Comm | Hospitals, Labs, Defense | Print, Tire, Retail |
| US Support Network | Strong local install teams | Global service reach | Regional reps & dealers | Niche reseller network |
| Ideal Use Case | High-speed order picking | High-density, large inventory | Secure, clean environments | Oversized vertical storage |
Real-World Applications by Industry
Automated storage solutions aren’t one-size-fits-all. Here’s how different industries use VLMs to solve space, speed, and labor challenges:
Manufacturing & MRO
Modula and Kardex are popular in facilities storing spare parts and tools. Fast access and tight inventory control reduce downtime.
Automotive
Dealerships use Modula Lift or Hänel Lean-Lift for organizing small parts, filters, and tools within compact service areas.
Healthcare & Pharmaceuticals
Kardex Shuttle XP and Hänel Rotomat are favored for their cleanroom compatibility and FDA-traceable inventory management.
Libraries, Offices & Archives
Hänel and Vidir solutions are ideal for vertical filing of documents, textiles, or archival items where space and security matter.
Print, Tire & Retail Storage
Vidir offers specialty storage for tires, signage, rolls of print media, and other bulky items requiring vertical access.
🧠 Choosing the Right VLM: Questions to Ask
How much vertical clearance does your facility offer?
Do you need integration with existing ERP or WMS systems?
What tray capacity and dimensions do you need?
Is inventory security or compliance a priority?
How fast do you need installation and support response?
👉 For example:
If you’re in Florida, need fast turnaround, and want a U.S.-based support team — Modula may be the best fit.
If you’re dealing with high-volume SKU management across multiple sites, Kardex offers robust integrations.
If cleanliness or audit trails matter (like in medical or defense), Hänel shines.
❓ Frequently Asked Questions
🔹 Are vertical lift modules expensive?
They can range from $75K to $150K+, depending on height, tray count, software, and customizations. However, they often pay for themselves within 18–24 months through space and labor savings.
🔹 What maintenance is required?
Most brands offer annual service contracts. Systems like Modula and Kardex are built for 24/7 reliability with minimal maintenance.
🔹 Can VLMs integrate with my current inventory software?
Yes. Brands like Modula, Kardex, and Hänel offer robust WMS/ERP integrations and APIs. This ensures real-time stock control.
🔹 What’s the difference between a VLM and a vertical carousel?
Vertical carousels rotate trays around a track (like a Ferris wheel), while VLMs use a central extractor. VLMs are more flexible for height and tray customization.
📈 Why Now Is the Time to Invest in Automated Storage
The benefits of automated storage aren’t theoretical anymore. They’re measurable:
Up to 2.5x productivity increase in pick rates
Up to 90% space savings compared to static shelving
Up to 30% fewer inventory errors
Fewer injuries and ergonomic claims
And with ongoing labor shortages and rising lease costs, automating storage is one of the most ROI-friendly moves a warehouse can make.
📞 Ready to Optimize Your Facility?
At Vertical Storage USA, we help businesses across the U.S. choose the right VLM system based on their footprint, inventory profile, and growth goals. We offer:
✔ Free space analysis & CAD layout
✔ Quick quotes on new and used Modula systems
✔ Nationwide delivery & installation
👉 Get a Free Quote Today »
Or call us at (407) 695-5545 to speak with an expert.
