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MACHINE-ROOM-LESS (MRL) ELEVATOR
DESIGN
Presented to:
CTA Engineering and Maintenance
567 West Lake Street, Chicago, IL 60661
June 19th, 2014
By:
Mid-American Elevator Company, Inc.820 N Wolcott, Chicago, IL 60622
Phone: 773.486.6900Fax: 773.486.6605
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNAdvantages:
Domestic origination (Hollister Whitney, Quincy IL)
Compliant with FTA “Buy America” requirements (49 CFR. Part 661)
100% Non-ProprietarySeamless interface with multiple PLC based (per APTA) control systems
Green Application relative to other arrangementsLower Motor/Brake BTU outputLower HP requirements than other elevator arrangements for the same speed and capacityRegenerative drive capability
Smaller building footprint required
Faster car speed than typical hydraulic elevators
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
Disadvantages:–Greater Initial Cost vs. Comparable Hydraulic setup
–Structural Loading Considerations– Pit Floor and Tower Structure
– Increased maintenance costs vs. traditional Hydro but comparable to traditional traction machines
–Longer installation timeline
– Increased pit and overhead requirements vs. Hydraulic
–Climate control required at top of hoist way for outdoor applications
MACHINE-ROOM-LESS (MRL) ELEVATOR FEATURES
• Mechanically efficient gearless machine• Dual braking eliminates need for rope gripper• Manual brake release for emergency lowering• Minimal control space requirements (remote or local)• Rail mounted version• Remote Resettable governors• Optional Regenerative drive configurations
PERMANENT MAGNET GEARLESS MACHINE
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN MULTIPLE INSTALLATION
CONFIGURATIONS
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNPASSENGER APPLICATIONFRONT OPENING, SIDE COUNTERWEIGHT2:1 ROPED UNDERSLUNG CAR SHEAVES
Standard Speeds: 150, 200, 350, 500 fpm [.75, 1.0, 1.75, 2.5 m/s]
Maximum Travel: 200’-0" [61 m]
Maximum Stops: 20
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNPASSENGER APPLICATIONFRONT OPENING, SIDE COUNTERWEIGHT2:1 ROPED OVERSLUNG CAR SHEAVES
Standard Speeds: 150, 200, 350, 500 fpm [.75, 1.0, 1.75, 2.5 m/s]
Maximum Travel: 200’-0" [61 m]
Maximum Stops: 20
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNPASSENGER APPLICATIONFRONT AND REAR OPENING, SIDE COUNTERWEIGHT2:1 ROPED OVERSLUNG CAR SHEAVES
Standard Speeds: 150, 200, 350, 500 fpm [.75, 1.0, 1.75, 2.5 m/s]
Maximum Travel: 200’-0" [61 m]
Maximum Stops: 20
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNHOSPITAL / SERVICE APPLICATIONFRONT OPENING2:1 ROPED OVERSLUNG CAR SHEAVES
Standard Speeds: 150, 200, 350 fpm [.75, 1.0, 1.75 m/s]
Maximum Travel: 200’-0" [61 m]
Maximum Stops: 20
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGNHOSPITAL / SERVICE APPLICATIONFRONT AND REAR OPENING2:1 ROPED OVERSLUNG CAR SHEAVES
Standard Speeds: 150, 200, 350 fpm [.75, 1.0, 1.75 m/s]
Maximum Travel: 200’-0" [61 m]
Maximum Stops: 20
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN
STRUCTURE MOUNTED HOLLISTER
WHITNEY MRL
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN EXAMPLE @ DAN RYAN CTA 63RD STREET STATION STRUCTURE MOUNTED
HOLLISTER WHITNEY MRL
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN EXAMPLE @ DAN RYAN CTA 63RD STREET STATION STRUCTURE MOUNTED
HOLLISTER WHITNEY MRL
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN EXAMPLE @ DAN RYAN CTA 63RD STREET STATION STRUCTURE MOUNTED
HOLLISTER WHITNEY MRL
MACHINE-ROOM-LESS (MRL) ELEVATOR DESIGN EXAMPLE @ DAN RYAN CTA 63RD STREET STATION STRUCTURE MOUNTED
HOLLISTER WHITNEY MRL
RAIL SUPPORTED CONFIGURATION
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