Built-Up Hoists

» Overhead Cranes Index
» Catalog Index

Components & Details of Built-Up Hoists:

Hoist Reducer
  • Housing – horizontal split, all steel fabricated housing, stress-relieved, machined, foot mounted, over-sized inspection cover.
  • Shafting – SAE 4340 high alloy steel, through hardened.
  • Gearing – All helical, AGMA diametral pitches, full fillet, 25 degree pressure angles, SAE 4140 high alloy steel, through hardened, 35/44 RC.
  • Bearings – Double row spherical, self-aligning, minimum 15,000 hour L10 bearing life based on CMAA requirements.
  • Bearing Capsules – all bearings are housed in their own steel capsules.
  • Seals – Taconite style seals (double seals) on input and output running against a carburized and ground seal sleeve.
  • Lubrication – ISO VG220 gear oil.
  • Sight Gauges – Included.
  • Drain Valves – Included.
  • Breathers – Canister type.
Drum Couplers
  • Construction – Gear type coupling, AIST compliant.
  • Service Factor – 1.75 minimum.
  • Mounting – Flange mounted into a counter-bore machined into the drum flange.
Cable Drums
  • Construction – All steel construction, flanges and drum are machined to a close tolerance fit between members. Flanges are locked onto the drum tube and then completely welded together.
  • Flanges – Pre-machined for location during welding, final machined after welding to eliminate distortion created during the welding process.
  • Shaft – Low carbon, low alloy shaft material is used to insure a fatigue resistant weld and eliminate the need for complicated and procedurally sensitive welding procedures. Shaft is machined after welding is complete.
  • Grooving – Standard 3/8 depth, 125 mirco-inch finish or better, 1/2 or full depth grooving also available – Heat treated grooves available as an option.
  • Cable Clamps – Formed steel pieces, double bolted, machined to fit.
Hoist Holding Brake
  • Construction – AC Thruster, Industrial Duty shoe type, other types are available upon request.
  • Torque – 150% motor torque as a standard.
  • Brake Wheel – Ductile iron, completely machined and balanced.
Upper Limit Switches
  • Construction – 1686, weighted type.
  • Mounting – Mounted to the top of the trolley deck.
Hoist Motor
  • Construction – Flux Vector, 60 min, Class “H” Ins, TENV, Klixon, foot mounted, 1.15 service factor, NEMA frame.
  • Mounting – Mounting - Via machined mounting pads.
Motor Couplings
  • Construction – Gear type coupling, AIST complaint.
Geared Limit Switch
  • Construction – 3 pole geared limit, two upper and one lower limit, switch is driven by a jaw coupling attached to the drum shaft.
Trolley Frame
  • Construction – one piece weldment, all steel members, gusseted to create low deflections and to eliminate stress, coped and fitted following good construction practices.
  • Welding – Meets all aspects of AWS D14.1
Drum Pillow-Block Bearings & Pedestal
  • Construction – Piloted flange, double row spherical type, capable of handling angular misalignments created during loading.
  • Steel construction, machined to accept the piloted flange, permanently welded to the trolley structure, no alignment needed during drum installation or removal.

Built-Up Hoists


Mazzella Red Divider

Mazzella Overhead Crane & Service Division Mazzella Hoist & Crane Service Division
Mazzella Rigging Division Mazzella Fall Protection Division
Mazzella Warehousing Division Mazzella Metals Division

Mazzella Companies Footer Logo


Planar Client Options
Layout Style
  • Wide
  • Boxed
Theme Preview
escort antalya
best free porn videos la mia prima volta porno porno con cazzi grandi
ankara escort
replica watches
gulus estetigi
Bornova escort izmir rus escort Alsancak escort izmir rus escort Bornova escort eskort denizli eskort konya antalya eskort bayan belek escort lara escort