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MRL – Rail Supported

MRL Car Type Summary

The group one “Machine Room Less” is an engineered package design that utilizes an efficient gearless permanent magnet machine. This machine, with all the related traction components, is installed inside the hoistway eliminating the need for a machine room.

  • Engineering support and service
  • Shop drawings and group one installation drawings
  • Consolidated shipment when complete package is ordered
Advantages for the building owner:
  • Saving on valuable floor space
  • No contamination to the ground like on hydraulic applications.
  • Greater power efficiency
  • Superior performance and ride quality
  • Reduction on the elevator power feeder
Equipment Included:
  • Gearless MRL PM Torin machine
  • Governor and tail sheave
  • Factory pre-assembled overhead machine frame
  • Counterweight frame and weights
  • Car & cwt roller guides with mounting plates
  • Sling including: Crosshead, stiles, bolsters, brace rods, strike plates
  • Platform with toe guard
  • Buffer stands, spring or oil buffers
  • Safeties
  • Underslung assembly with deflector sheaves
  • Guide rails, rail brackets with spreader plates, clips and fasteners
  • Car & cwt ropes and wedge sockets
  • Limit switches, mounting brackets & cam
  • All hardware included in labeled bags
Equipment Capabilities:
  • Passenger & service cars
  • Capacities from 2,100 lbs up to 3,500 lbs
  • Speeds from 100 FPM up to 350 FPM
  • Travel up to 50’-0”

Please contact DEM EE on all for drawings.

MRL Front Opening Dimensions
CAPACITY
(LBS.)		PLATFORM W X DHOISTWAY W X DCLEAR OPENINGCLEAR INSIDE W X DSSSO DOORSSCO DOOR2SSO DOORNON-SEISMIC ZONE PDFSEISMIC ZONE PDF
P2100-FO6’-0” x 5’-1”7’-8” x 5’-10”3’-0”5’-8” x 4’-3”XMRL RAIL SUPPORTED PASSENGER 2100 FO ZONE0MRL RAIL SUPPORTED PASSENGER 2100 FO ZONE2 OR GREATER
P2500-FO7’-0” x 5’-1”8’-8” x 5’-10”3’-6”6’-8” x 4’-3”XXMRL RAIL SUPPORTED PASSENGER 2500 FO ZONE0MRL RAIL SUPPORTED PASSENGER 2500 FO ZONE2 OR GREATER
P3000-FO7’-0” x 5’-6”8’-8” x 6’-3”3’-6”6’-8” x 4’-8”XXMRL RAIL SUPPORTED PASSENGER 3000 FO ZONE0MRL RAIL SUPPORTED PASSENGER 3000 FO ZONE2 OR GREATER
P3500-FO7’-0” x 6’-3”8’-8” x 7’-0”3’-6”6’-8” x 5’-5”XXMRL RAIL SUPPORTED PASSENGER 3500 FO ZONE0MRL RAIL SUPPORTED PASSENGER 3500 FO ZONE2 OR GREATER

 

MRL Front & Rear Opening Dimensions
CAPACITY
(LBS.)		PLATFORM W X DHOISTWAY W X DCLEAR OPENINGCLEAR INSIDE W X DSSSO DOORSSCO DOOR2SSO DOORNON-SEISMIC ZONE PDFSEISMIC ZONE PDF
P2100-FR6’-0” x 5’-8”7’-8” x 6’-8 ½”3’-0”5’-8” x 4’-4”XMRL RAIL SUPPORTED PASSENGER 2100 FR ZONE0MRL RAIL SUPPORTED PASSENGER 2100 FR ZONE2 OR GREATER
P2500-FR7’-0” x 5’-8”8’-8” x 6’-8 ½”3’-6”6’-8” x 4’-4”XXMRL RAIL SUPPORTED PASSENGER 2500 FR ZONE0MRL RAIL SUPPORTED PASSENGER 2500 FR ZONE2 OR GREATER
P3000-FR7’-0” x 5’-11”8’-8” x 6’-11 ½”3’-6”6’-8” x 4’-7”XXMRL RAIL SUPPORTED PASSENGER 3000 FR ZONE0MRL RAIL SUPPORTED PASSENGER 3000 FR ZONE2 OR GREATER
P3500-FR7’-0” x 6’-9”8’-8” x 7’-9 ½”3’-6”6’-8” x 5’-5”XXMRL RAIL SUPPORTED PASSENGER 3500 FR ZONE0MRL RAIL SUPPORTED PASSENGER 3500 FR ZONE2 OR GREATER

Hoistway dimensions are minimum clear inside requirements. Shorter installation times can be obtained by increasing these dimensions by up to 2”. For seismic zone 2 and up, add 2” to hoistway width to comply with Code requirements.

Use of 8mm and 10mm ropes for traction elevator was approved by A17.6-2010 effective 1st July 2010.

 

Pit and Overhead Requirements For Cars With 8’-0 Cab Height
SPEEDP2100, P2500, P3000, P3500
FPMPitO.H.
100*5’-0”14’-6”/14'-0"
150*5’-0”14-7”/14'-0"
200*5’-0”14’-9”/14'-1"
250*5’-6”15’-0”/14'-6"
300*5’-6”15’-1”/14'-7"
350*5’-6”15’-4”/14'-10"

 

DEM EE can provide not only standard sizes as outlined above but also non-standard or custom sizes. Please consult DEM EE for details.