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A Vertical Lift Module (VLM), like White's Power Column 2, is an automated storage and retrieval unit consisting of an extractor mechanism, located between two sections of stationary racking, inside a metal enclosure. |
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 A series of trays inserted in the front and rear racks are used to store product. When activated, the extractor device brings a requested tray from the rack to a workstation built into the front of the unit. VLMs enable a relatively large inventory to be directed to a picker at one fixed location. By eliminating the climbing, reaching, and bending necessary to pick from multiple levels, VLMs produce a more efficient "parts to picker" instead of "picker to parts" workflow—increasing worker safety and productivity. Leading companies use White Systems Power Column 2 to increase storage density, throughput, and material handling efficiency while reducing inventory losses and labor costs. They efficiently deliver product to the operator, yielding a low-floor-space way of storing, securing, and retrieving anything from small parts to fixtures and tools. Power Column 2White's Power Column 2 vertical lift module takes advantage of unused overhead space found in many manufacturing and distribution facilities. Enhanced productivity, greater security and space savings of up to 90% give PC2 users a significant edge over their competition. Features and Options
The Power Column 2 eliminates hoist chains and uses more costly rack and pinion drives for greater speed and reliability. Unlike chains that stretch and cause extractor positioning errors, the rack and pinion drive accurately positions with a precise, smooth motion saving time during both storage and retrieval. Tough Galvanized Steel Trays Power Column 2 trays are fabricated from heavy-duty galvanized steel and have a maximum carrying capacity of 880 pounds. With a number of standard sizes and an optional divider system, White provides the most adaptable storage system on the market. Flexible Controls From the simple to use side-mounted operator terminal to fully automated operation through an optional Ethernet port and host PC, controls packages can be configured to handle any situation. The Power Column 2 controller is fully compatible with all White Systems software packages and allows interconnection with existing inventory management systems.
White Systems Power Column 2 features an optional tilt-tray system. The tray is presented at an ergonomically superior 45 degree angle, minimizing bending and reaching when retrieving items from the back. Software Controlled Light Pointer An available software controlled light pointer illuminates selected items in the tray, helping the operator to quickly and accurately make picks. Ergonomic Work Height Adjustment The Power Column 2 has an optional adjustable work counter allowing operators to select a comfortable working height. Next-Tray Delivery This option automatically pre-positions the next tray in the pick sequence, so the moment an operator is done with the current tray, the next tray is ready for picking. Power Column 2 Specifications
Frame: Bolt-together modular design. Fully welded rack frames. Built-in bearing plate style anchoring feet. Trays: Galvanized steel tubular sidewalls, corrugated floor pan. Main opening: 37 inch high opening at front of unit. Halogen down lighting. Counter: Mounted below main opening at a height of 33 inches from floor. Laminate finish. Service opening: Lockable access door on side of unit and panel below counter. Controller: Internally mounted control enclosure mounts in the base of the unit. Enclosure has slide-out panel for servicing microprocessor control and motor drives. Operator interface terminal: Side-mounted keypad with manual E-stop, enable, and jog buttons. Safeties: Lockable disconnect switch, E-stop button, access door interlock switch, and motor overload. Drive motors: Direct drive continuous duty AC gear motors. Vertical - 3 hp , extractor - 1/2 hp. Lift mechanism: Vertical - heavy-duty rack and pinion drive. Extractor - dual strand roller chain with steel pawls. Finish: Powder coat white exterior with anodized aluminum corner posts. Special colors available. Tray dividers: Steel drop-in dividers quickly configure a tray for small parts storage. Available side extensions produce an equivalent 6 or 10 inch tray sidewall. Adjustable counter: Linear actuator powered counter moves up or down, at the press of a button, to provide the ideal work height for individual operators. Light pointer: Software directed, collimated beam spotlight illuminates selected items in the tray, helping the operator to quickly and accurately make picks. Tilt-tray system: Automatically presents the tray at an ergonomically superior 45 degree angle, minimizing bending and reaching when retrieving items from the back. Security door: Powered main access door activated through key switch. Next-tray delivery system: Automatically pre-positions the next tray in the pick sequence, so the moment an operator is done with the current tray, the next tray is ready for picking. Software: The Power Column 2 is fully compatible with all White Systems inventory control software packages. Dual access opening: An additional work station can be added at another level. Transport cart: Use to transport a tray from the workstation to a remote location. Utility pole: Provides a convenient mounting location for a monitor, keyboard, and scanner. Unit capacity: 88,000 pounds, gross load. Pan capacity: 880 pounds maximum. Vertical speed: 2.46 feet per second. Duty cycle: 100% continuous duty. Operating temperature: 40º F to 120º F. Power requirements: 480 V AC, three-phase, 15 A. Seismic: Zone 4 anchoring available. May require special anchors depending on height of unit. Special requirements: All units are ETL listed.
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Powerful,
Heavy-Duty Vertical Rack and Pinion Drive
Unique
Ergonomic Tilt-Tray
Tray
width: 48.0, 65.3, and 98.4 inches (inside dimension)