Compact Twin Vertical Lift Module
Dual-tray VLM for faster picking, high-volume storage, and reduced operator wait time.
Supported in North America by White Systems with U.S.-based service technicians.
Watch the dual-tray staging in action: while the operator picks from one tray, the elevator is already fetching the next to eliminate wait time and double throughput.
Compact Twin Vertical Lift Modules deliver exceptional performance for high-speed, high-volume operations. VLMs are automated storage systems that use vertical space to organize parts and bring them directly to the operator—eliminating the need to walk, bend, or search through shelves. This makes them ideal for saving space, improving safety, and boosting productivity.
What Sets the Compact Twin Apart
The Compact Twin VLM is engineered for maximum speed and throughput, featuring a dual-tray elevator that enables high-speed picking with the fastest tray retrieval in its class. This high-performance design minimizes wait times, maximizes storage density, making it ideal for environments where every second counts.
Optimized for High-Volume Workflows
Whether you’re handling spare parts, tools, raw materials, or finished goods, the Compact Twin is built for operations that demand maximum speed, precision, and organized high-volume storage. Ideal for manufacturing, retail, healthcare, aerospace, and defense, it supports fast-paced environments where every second and every square foot counts.
Get Pricing and Layout Guidance for the Compact Twin VLM
Tell us what you’re storing and what you’re trying to improve. Our team can help determine whether the Compact Twin is the right fit for your throughput, floor space, and inventory needs.
“We have been able to eliminate over 500 storage bin locations. We’ve been able to use that space to maximize and optimize the production of our floor.”
— Warehouse Supervisor at ABB
When the Compact Twin Is the Right Fit
The Compact Twin is a strong fit when your operation needs:
Faster tray delivery
Dual-tray staging helps reduce idle time between picks.
Higher picking volume
Built for workflows where operators need a steady flow of trays, parts, or orders.
Dense vertical storage
Store more SKUs in less floor space compared with shelving or drawer storage.
Kitting, parts, or fulfillment support
Useful for production parts, spare parts, tools, finished goods, and high-SKU inventory.
A supported system, not just equipment
White Systems helps with system layout, integration, installation, and ongoing service.
Not Sure Which VLM Model Fits?
The Compact Twin is designed for speed. If your biggest issue is storage density, heavy parts, or general space savings, another White Systems VLM may be a better fit.
Our team can help compare:
Compact Lift — general vertical storage and space savings
Compact Twin — faster tray delivery and high-throughput picking
Compact Double — maximum storage density
PowerColumn 3 — heavy-duty tray capacity and large-part storage
Rack-and-Pinion Drive
Fast, smooth, and reliable tray movement
High-Speed Staging
One tray is presented while the next is being retrieved with our dual tray elevator for close to double the throughput.
Height Optimization
Automatically adjusts for every item’s size
Ergonomic Access
Items delivered at a safe, comfortable height
Compact Footprint
Maximize storage, minimize floor space used
White Systems' Compact Twin Vertical Lift Modules
The Compact Twin Vertical Lift Module (VLM) is designed for efficiency, speed, and safety in your storage operations. Featuring a robust metal rack and pinion system, it ensures the quickest tray retrieval, delivering items to a convenient ergonomic height. The VLM is equipped with a safety curtain and additional safety features to protect operators and enhance overall safety.
How the Compact Twin VLM Works
The Compact Twin VLM’s efficient computerized control system ensures precise item retrieval by activating the appropriate trays or shelves and bringing them to the retrieval opening. Once the items are retrieved, the trays return to their original positions, maximizing storage space and keeping items organized.
Benefits & Solutions of the Compact Twin VLM
The Compact Twin Vertical Lift Modules deliver high storage density, fast retrieval, and ergonomic design to optimize warehouse operations.
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Double the Throughput: Our dual-tray elevator stages the next pick while the operator works, allowing for up to 120 trays per hour.
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Eliminate Wait Time: Drastically reduce operator idle time with “staged” tray delivery for high-volume kitting.
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Ergonomics at Speed: Can maintain 99.9% accuracy even during peak fulfillment windows.
With these capabilities, Compact Twin VLMs provide measurable gains in space utilization, productivity, and workplace safety.
How does this compare to your current shelving setup? Read our Comparison Guide
Features
This VLM features a double-tray elevator capable of returning close to double the number trays per hour for the fastest picking speed. Dual trays per level maximize storage efficiency, while rack and pinion gears ensure smooth and reliable operation. The computerized control system accurately determines item locations and activates trays or shelves in both columns to bring them to the retrieval opening.
Key Features:
- Double elevator for fast picking speed
- Dual trays per level for maximum efficiency
- Rack and pinion gears for smooth operation
- Computerized control for precise item retrieval
Expert Service & Support
White Systems provides a level of uptime security that third-party resellers can’t match. We employ a national network of 30+ direct-hire, factory-trained Field Service Engineers (FSEs) strategically located across the country. By utilizing our own expert team rather than third-party contractors, we ensure every technician arrives with specialized OEM knowledge and direct access to the spare parts needed to keep your VLM operational.
Why it makes financial sense
Storage automation with a clear operational payoff
Compact Twin VLMs help recover floor space, reduce wasted motion, improve inventory control, and support safer picking — giving facilities a more efficient way to store and access critical parts.
Recover floor space
High-density vertical storage returns valuable square footage to production.
Reduce wasted motion
Parts come directly to the operator, reducing walking, searching, climbing, and bending.
Support safer picking
Ergonomic tray delivery and enclosed storage help reduce manual handling risks.
See Where VLMs Create Measurable Results
Facilities use White Systems VLMs to reclaim floor space, reduce walking and searching, organize inventory, and support faster access to critical parts.
White’s PC3 VLM improves F-35 maintenance at FRC East
ABB customer case study — vertical lift module
Efficient wine and spirit storage with compact twin VLMs
Want similar results? Request a VLM review.
Find Out If the Compact Twin Fits Your Operation
If picking speed, operator wait time, or high-SKU storage is slowing your team down, the Compact Twin may be a strong fit. Send us a few details and White Systems will help evaluate the right VLM model, layout, and next step.
Not sure what model you need? We’ll help compare options.