MRL – Frame Building 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
  • Overhead beams, machine bedplate, hitch plates, governor plate
  • 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
  • Travels up to 200 ft

For building supported design machine beam pockets are required in the hoistway walls.

MRL Front Opening Dimensions

CAPACITY
(LBS.)
PLATFORM W X DHOISTWAY W X DCLEAR OPENINGCLEAR INSIDE W X DSSSO DOORSSCO DOOR2SSO DOOR
P2100-FO6’-0” x 5’-1”7’-8” x 5’-10”3’-0”5’-8” x 4’-3”X
P2500-FO7’-0” x 5’-1”8’-8” x 5’-10”3’-6”6’-8” x 4’-3”XX
P3000-FO7’-0” x 5’-6”8’-8” x 6’-3”3’-6”6’-8” x 4’-8”XX
P3500-FO7’-0” x 6’-3”8’-8” x 7’-0”3’-6”6’-8” x 5’-5”XX

MRL Front & Rear Opening Dimensions

CAPACITY
(LBS.)
PLATFORM W X DHOISTWAY W X DCLEAR OPENINGCLEAR INSIDE W X DSSSO DOORSSCO DOOR2SSO DOOR
P2100-FR6’-0” x 5’-8”7’-8” x 6’-8 ½”3’-0”5’-8” x 4’-4”X
P2500-FR7’-0” x 5’-8”8’-8” x 6’-8 ½”3’-6”6’-8” x 4’-4”XX
P3000-FR7’-0” x 5’-11”8’-8” x 6’-11 ½”3’-6”6’-8” x 4’-7”XX
P3500-FR7’-0” x 6’-9”8’-8” x 7’-9 ½”3’-6”6’-8” x 5’-5”XX

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 4” 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.

New York City Building Department has issued new rules governing the overhead requirements for MRL’s. Please contact a DEM Elevating Equipment representative.

Dimensions shown here are for reference only, consult your sales representative for final dimensions for your particular project.

Hoistway depth dimensions based on 8# cwt rails, if using 15# cwt rails, add 4″ to hoistway depth.

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"

Building Supported MRL design with Torin TSM series machine.

*Spring buffers for car and counterweight / **Oil buffers for car and counterweight.

Based on ASME A17.1

O.H. Left column has spring or oil buffers with 6″ Runby / Right Column has all oil buffers with 0″ Runby.

Note: For cars with tall cabs add 1” to O.H. for every inch of cab height added.

 

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