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Electric Chain Hoists

Product Overview

LK ELECTRIC CHAIN HOISTS STANDARD FEATURES:

  • 1/8 to 5 ton capacities (125 kg - 5000 kg) / Single fall up to 2.5 ton (2,500 kg), two fall up to 5 tons (5000 kg)
  • 10, 15 and 20 ft. (3, 4.5 and 6 m) lifts standard; additional lifting heights available up to 98 ft. (30 m) single fall, 49 ft. (15 m) two fall
  • Two-speed TMU trolley drive unit (trolley speed is 80/20 FPM)
  • Trolley brake, drop lugs and bumpers are standard
  • Variable frequency drive option on TMU
  • Various hoist suspensions including hook, push trolley & motorized trolley (TMU)
  • Disc brake positioned after the mechanical overload device (clutch); on the load path
  • High density polyethylene black chain container
  • Two or three step helical gear

 

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About Electric Chain Hoists

 LK ELECTRIC CHAIN HOISTS

  • All R&M hoists are statically and dynamically tested with a minimum of 125% rated load prior to shipping
  • ASME HST-1
  • ASME B30.16
  • EC Declaration of Conformity
  • CSA approval (60 Hz, 115 VAC models only)
  • RoHS Compliant
  • Plug-in push button pendant with E-stop & built in mainline contactor are standard
  • Integral hoist control panel and push button enclosures bothmeet NEMA type 3R (IP55) protection classification

 

LK INNOVATIVE PERFORMANCE WITH EASY OPERATIONS:

  • Power and control plugs for quick assembly and disassembly
  • Electrics split on two main printed circuit boards (PCB)
  • Power and motor control PCB
  • Electrical cover safety cables retain fasteners during service
  • Electrical components designed for plug and play
  • Easily replaceable components (including hoist motor)
  • Easy access to internal chain guide and sprocket - Can be easily inspected and replaced

PC Board

LK INNOVATIVE SLIP CLUTCH & BRAKE:

  • DC brake for quite operation; IP66 protection class
  • Easy to adjust slip clutch/overload device
  • Hoist brake designed to last for the DWP (designed working period) of the hoist. No air gap adjustment required
  • Disc brake is positioned after the clutch on load path
  • Design enables brake to hold load without interaction of the clutch

 

LK ELECTRICAL LIMIT SWITCH:

  • Rocker style electrical limit, protected inside hoist body
  • Limit switch triggered by rubber protection of bottom block or rubber cased fall stop on loose end
  • Mounted to pressure cast aluminum chain guide

LK TOUGHEST GEARBOX IN THE BUSINESS:

  • Minimum AGMA 10 heat treated helical gearing
  • Permanently lubricated gearbox for the DWP of the hoist
  • Quiet gear train – < 70 db - Maximum

 

LK LOAD WHEEL:

  • Precision manufactured, hardened load wheel
  • Patented load wheel with five intermediate teeth; low noise, less chain wear, for smooth and quiet operation

Load Wheel

LK CONTROL:

  • Voltage control 48 VAC (50 Hz) or 115 VAC (60 Hz)
  • Single speed hoists are voltage re-connectable for 208, 230, 460V/3/60 Hz and easily re-connectable with plug and fuse change

 

LK HIGH PERFORMANCE TEFC (TOTALLY ENCLOSED FAN COOLED) MOTOR:

  • Heavy duty type 50% ED rating (exceeds 30 min. rating) on three phase motors
  • IP55 protection; Class F Insulation
  • Optimum cooling with ribbed aluminum construction motor for maximum surface area
  • Motor thermal protection with bi-metal switch  

LK Cut-a-way

LK HOIST BODY:

  • Constructed of pressure-cast aluminum
  • 70µm epoxy painted for corrosion resistance