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PATENT-PENDING PIPE MODULAR LIFT SYSTEM

This Changes Everything!


Since the ancient Greeks invented the first construction crane around the year 900 BC, a certain amount of risk has always been inherent in the use of a hook to lift heavy objects. PSC has created a revolutionary game changer with its patent-pending Pipe Modular Lift System (PMLS), which eliminates the hazards of suspended loads at nuclear plants by employing a platform that mechanically raises and lowers heavy cargo via a system of structural elements. The PMLS has numerous advantages over traditional crane and gantry lift systems:

Speed, Power & Versatility
Given its freestanding modular design, the PMLS's capacity and footprint can be configured based upon the nuclear plant's requirements.
• Lift speed: 20 inches per minute (twice that of strand jack systems)!
• Lifting capacities: 400, 800 and 1,200 tons
• Vertical travel distance up to and exceeding 50 feet (depending on the application) in 10-foot increments
• Clear span openings configurable to 50 feet or larger
• Square, rectangular and round layouts
• 5 percent side loading

Easy Transport & Rapid Assembly
• Ships in 12 standard ground transportation trailers versus 25 to 30 trailers needed for cranes or gantries
• Requires no wide load or heavy load permits
• Assembles in five shifts, or fewer, compared to three to four weeks for comparable systems

Safe, Reliable Operation
Unlike traditional lift systems, there are no cable drums or strands that can fail or hydraulics that can leak.
• Wind load: 50 miles per hour (operating) and 120 miles per hour (high winds) — enables work to
   safely continue despite inclement weather
• Computerized control: sets vertical travel distance based on user input
• Power failsafe: load remains in place on the secured platform until power is restored
• The self-locking PMLS provides perfectly synchronized lifting and positive mechanical engagement of the
   cargo and the platform — 100 percent of the time
• Its performance is not affected by unbalanced loads

Minimizes Load Handling Evolutions & Reduces Risk
The PMLS platform was developed to accept any mobile material handling equipment, such as PSC's SPMT, with the cargo in place. This approach eliminates the need for additional equipment and lifts to transfer the component from one system to another. Once the PMLS reaches the desired elevation, the mobile material handling equipment transfers the cargo from the platform to the adjoining structure for delivery. PSC used the PMLS to help keep a critical path air chiller replacement project on schedule for a Kansas nuclear plant.

The PMLS complies with the applicable sections of the following standards:
• AISC Manual of Steel Construction, 9th Ed. and 13th Ed.
• ASCE 7-10, Minimum Design Loads for Buildings and Other Structures
• AWS D1.1, Structural Welding Code
• ASME NQA-1-2004, Subpart 2.15, Quality Assurance Requirements for Nuclear Facility Applications
• ASME B30, Various Sections
• NUREG 0612, Control of Heavy Loads at Nuclear Plants
• 29 CFR 1926, OSHA Construction Industry Regulations
• ANSI/SAI A92.9, Mast-Climbing Work Platforms
• ASME A120.1, Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building
   Maintenance

The PMLS is proudly engineered, manufactured and load tested in the U.S.A. Demonstrations of its capabilities are available via video or at PSC's facility in Russellville, Ark. To schedule a live demonstration of this groundbreaking lift system, please call 1.800.912.9181.

PMLS Product Data Sheet


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