Engineering Data & Technical Specifications: Compact Twin

The Compact Twin is optimized for high-velocity environments, utilizing a dual-tray delivery system to eliminate operator wait time. While one tray is being picked, the next is already positioned for access. For custom layout support or throughput modeling, Contact our Sales Team.

Machine Dimensions & Capacity

Category
System Height
Height Increments
Tray Widths
Tray Depths
Tray Capacity
Total Machine Capacity
Weight Check
Compact Lift Specifications
3,026 – 16,000 mm (9.9 – 52 ft)
150 mm (5.9 in) steps to match ceiling height
1,830mm (72") | 2,440mm (96") | 3,050mm (120") | 3,660mm (144")
820 mm (32.3 in) Standard
300 kg (661 lbs) up to 500 kg (1,102 lbs) per tray
50,000 kg (110,231 lbs)
Standard (Options for 300kg or 500kg loads)

Performance & Drive System

Category
Drive System
Retrieval Speed
Storage Optimization
Positioning Accuracy
Engineering Details
4-Point Metal Rack & Pinion (Durable alternative to belts/plastic)
Variable (Optimized based on height and tray location. Enhanced by dual-tray delivery system.)
Dynamic Height Measurement (25mm intervals up to 1,000mm)
Precision tray delivery within ± 1.0 mm

Controls, Power & Environment

Category
Access Openings
Control System
Safety Systems
Power Requirements
Environment
Configuration Options
Single or Dual access options; Pallet handling & 100% extract available
PLC-based with integrated software (WMS/ERP compatible)
Standard Safety Light Curtains for personal protection
480VAC / 3PH / 60Hz – 25/32 A (400V in US)
Ambient, Temperature-Controlled, or Cleanroom options

Optional Ancillary Devices

  • Optional Features: LED Bar, Laser Pointer, Pick Display, Label Printers, Scanners, Confirmation Buttons, Foot Pedal.

  • Optional Openings: Pallet handling (In-opening, 100% extract, or partial extract).

  • Tray Dividers: 25 mm (1 in) height increments.

Every system is supported by our national network of direct-hire, factory-trained Field Service Engineers. We don’t use third-party contractors—we send our own experts.

row of vertical lift modules

Maximum Throughput

The Compact Twin is the preferred choice for E-commerce fulfillment and Just-in-Time manufacturing where line-stoppage is not an option.

Key Benefits

  • Zero Operator Wait-Time: Fetch the next tray while the current one is being picked.

  • Efficiency: Significantly higher throughput than standard VLMs in the same footprint.

  • ROI: Optimized for 24/7 high-volume fulfillment operations.

Engineered for 99.9% Uptime

VLM rack and pinion at White Systems Modex booth

Unlike competitors using plastic parts or belts that stretch, the Compact Twin uses a 4-wheel metal rack-and-pinion drive. It’s the industrial standard for precision and long-term reliability.

Get a Custom Layout Review