Pulleys, Idlers, Magnets

 

Pulleys

 

Standard Heavy Duty Drum Pulleys

Benefits:

  • Meets or exceeds CEMA/ANSI specifications
  • Exclusive One Piece Rolled in Crown in all sizes help to ensure consistent, proper belt tracking h3er pulley with tighter tolerances

Construction:

  • Full depth weld with reinforcing bar on single longitudinal seam featured on each Douglas Heavy Duty Drum Style Conveyor Pulley
  • Crown face pulleys are furnished standard, flat face must be specified
  • Douglas hubs feature full depth welds on the inside and outside of pulley end disk decreasing the likelihood
  • of end disk failure due to shaft deflection and shock loads
  • Douglas hubs and bushings are interchangeable with QD® or XT® style
  • For approximate shipping weights please consult Factory

Options:

  • Hot Vulcanized Pulley Lagging
  • Shafting
  • Bearing Assemblies
  • Take-Up Systems
  • Stainless steel construction available
  • Machined face pulleys for close tolerance and better belt tracking
  • Optional Douglas Keyless Locking Assemblies available
 

Mine Duty/Mill Duty Drum Pulleys

Benefits:

  • Exclusive One Piece Rolled-in Crown ensures consistent, proper belt tracking and tighter tolerances

Construction:

  • Engineered for the roughest applications, rugged Douglas Mine/Mill Duty Drum Pulleys are intended for use in critical applications where down time must be minimized
  • Heavy construction reduces the likelihood of metal fatigue and pulley failure in severe applications minimizing down-time and maintenance
  • Full depth weld with reinforcing bar on single longitudinal seam featured on each Douglas Mine Duty/Mill Duty Drum Style Conveyor Pulley
  • Crown face pulleys are furnished standard, flat face must be specified
  • Douglas hubs feature full depth welds on the inside and outside of the pulley end disk decreasing the likelihood of end disk failure due to shaft deflection and shock loads
  • Douglas hubs and bushings are interchangeable with QD® or XT® style

Options:

  • Hot Vulcanized Pulley Lagging
  • Shafting
  • Bearing Assemblies
  • Take-Up Systems
  • QD® or XT® Hubs & Bushings
  • Machined face pulleys for close T.I.R. tolerance and better belt tracking
  • Optional Douglas Keyless Locking Assemblies available.
 

Spiral Drum Pulley

Benefits:

  • Promotes self-cleaning, helps move material to outside the pulley
  • Helps smooth vibrating belt movement

Construction:

  • Basic drum pulley in standard duty, Heavy Duty, Mine Duty or Extreme Duty with helically wound bar flights welded to drum pulley O.D.
 

Vortex ™  Spiral Clean Pulley

 The Vortex® Spiral Clean Pulley is a new and innovative concept in self-cleaning pulley design. The innovative and patented design is for harsh operating conditions and for those applications where uninterrupted operation is a must.

Design and Features

  • More efficient self-cleaning ability than standard wing pulleys
  • Smoother running, reduced vibration, improves sealing at transfer points, reduces the level of noise commonly associated with wing pulleys
  • Spiral design aids in belt tracking by moving the belt gently from the center of the pulley to the opposing edges with equal force
  • Unique continuous flight design prevents wing folding
  • Abrasion resistant contact bar (standard) extends pulley life by as much as 50% over standard contact bars
  • Keyless Locking Elements (optional) allow for infinite placement on the shaft, transfer torque more efficiently than standard keyed bushings
 

Quarry Duty Drum Pulley

Benefits:

  • Exclusive One Piece Rolled-in Crown ensures consistent, proper belt tracking and tighter tolerances

Construction:

  • Engineered for the roughest applications, rugged Douglas Quarry Duty Drum Pulleys are intended for use in applications where down time must be minimized
  • Heavy construction reduces the likelihood of metal fatigue and pulley failure in severe applications minimizing downtime and maintenance
  • Full depth weld with reinforcing bar on single longitudinal seam featured on each Douglas Quarry Duty Drum Style Conveyor Pulley
  • Crown face pulleys are furnished standard, flat face must be specified
  • Douglas hubs feature full depth welds on the inside and outside of the pulley end disk decreasing the likelihood of end disk failure due to shaft deflection and shock loads
  • Douglas hubs and bushings are interchange-able with QD®, XT® style, HE, or Taper Lock Bushings
  • 1/2" to 1" rim thickness; 3/4" - 2" end disk thickness

Options:

  • Hot Vulcanized Pulley Lagging
  • Shafting
  • Bearing Assemblies
  • Take-Up Systems
  • QD®, XT®, HE, Taper Lock Hubs & Bushings
  • Stainless Steel Construction
  • Galvanized Construction
  • Shaft Mount Reducers
  • Optional Douglas Keyless Locking Assemblies available
 

Standard Heavy Duty Wing Self-Cleaning Pulleys

  • Douglas Solid 3/4" Steel round bar wing tips wear longer and retain roundness.
  • Wears twice as long as other manufacturers formed flat bar or 1/4 round
  • Protects underside of belt from cuts, smoother running
  • Large pulleys are fitted with 1" solid steel bars for long life

Benefits:

  • Meets or exceeds CEMA/ANSI specifications
  • Douglas Heavy Duty Wing Style Pulleys feature exclusive minimum 3/4" solid steel round bars Increases service life
  • Helps prevent wing folding damage
  • Wears twice as long as other manufacturers' formed flat bar or 1/4 half-moon bar
  • Protects belt bottom cover from cuts and tears
  • Less belt vibration from smoother belt contact
  • Special self-cleaning angle formed by gussets discharges material away from the belt and the pulley face helping to prevent material build up and belt damage from conveyed material
  • Unique design creates a refined motion that helps to dislodge materials from the belt top cover

Construction:

  • Crown face pulleys are furnished standard, flat face must be specified
  • For approximate shipping weights please consult Factory
  • Douglas hubs and bushings are interchangeable with QD® and XT® style

Options:

  • Hot Vulcanized Pulley Lagging
  • Shafting
  • Bearing Assemblies
  • Take-Up Systems
  • Stainless steel construction available
  • Optional Douglas Keyless Locking Assemblies available
  • Stabilizing Rings
 

Spiral Wing Pulleys

Benefits:

  • Promotes self-cleaning, helps move material to outside edges of tail pulley
  • Helps smooth out vibrating belt movement

Construction:

  • Flat steel bars helically wound around wing fins.
 

Idlers

The invention of the Enduride roller comes from a very simple idea: to create a roller minimizing the three main sources of failure: external contamination, vibration and deflection. Our innovative technology optimizes the roller's performance and service life, resulting in a tangible and rapid return on investment for our customers. For over 15 years, Enduride products have been helping companies reduce their operating costs and annual roller consumption. Regardless of the size of your operations and your budget, we have a solution for you.

Both our idlers (Rollers and Frames) and our Retrofit rollers are available in CEMA C, CEMA D, CEMA E, CEMA F and CEMA G.

SUPERIOR SEALING SYSTEM

Specifications

  • Patented triple labyrinth system
  • Meets and surpasses the CEMA standard
  • Adapts to all types of frames
  • Available in all sizes and dimensions

Characteristics and differentiation 

  • Up to triple the lifespan
  • Noise reduction of up to 12 decibels
  • Works in extreme conditions
  • Specialized lubricants (-73 ° C to + 204 ° C)
  • Minimum TIR and concentricity
  • Extreme load capacity
  • Diameter: 1.9'' to 10'' (Metric rollers also available)
  • Shaft: 20 mm to 70 mm and +
  • Belts from 18'' to 104''

One-Man Idler

The One-Man Idler from Enduride utilizes sliding frames on a stationary base to provide an idler set that will fit in tight spaces between belt support cradles and allows easy installation and service. One-Man Idlers are available with standard or wide base frames and utilize impact or steel rolls in CEMA class A, B, C, D or E.

Features and Benefits:

  • Only 2 screws to remove it
  • 3 independent sections
  • For quick and easy maintenance
  • Perfect for tight transfer points and impact zones

Douglas® manufactured Idlers are engineered for demanding CEMA B, C, D or E applications with an interference fit between the shaft and the bearing for improved sealing, better stability and longer life. Douglas® idlers are available in a wide variety of configurations including: troughing, return, impact, rubber disc return, self aligning trough, self aligning return, scale quality and live shaft. Douglas® idlers feature:

  • Deep drawn steel end cap with metal outer seal provides excellent durability and protection
  • Exclusive Triple Lip Polyurethane Contact Seal helps prevent bearing contamination
  • The optional Defender™ Polymer Flinger helps prevent material buildup between the end of the roll and the frame as well as helps provide additional sealing in wet and corrosive applications
  • CNC Machined, shouldered shaft helps ensure proper bearing alignment
  • Rigid, self cleaning, welded steel frame with interchangeable mounting slots
  • Heavy precision ground sealed for life ball bearings
  • Reduced friction levels help conserve energy
  • Meets or exceeds CEMA B, C, D & E idler ratings
  • All Douglas Welders are AWS Certified

Troughed Idler with Permanent Sealed Bearings

  • Meets or exceeds CEMA B, C, D & E idler ratings
  • Available in 4-7” Roller Diameter (Depending on chosen CEMA Rating)
  • Trough Idlers available for Impact and Steel Cans

Return Idlers- Flat

  • Meets or exceeds CEMA B, C, D & E idler ratings
  • Available in 4-7” Roller Diameter (Depending on chosen CEMA Rating)
  • Return Idlers available with Steel Cans

Self-Aligning Return Idlers 4”, 5” & 6” Diameter

4” and 5” diameter Heavy 20mm (.787”) Precision, Permanent Sealed Bearings 6” diameter Heavy 25mm (.984”) Precision, Permanent Sealed Bearings

Magnetic Separators and Pulleys

 

Magnetic Separators & Magnetic Pulleys

 

Permanent Magnetic Conveyor Pulleys

Benefits

  • Meets or exceeds CEMA/ANSI specifications
  • Exclusive One Piece Rolled in Crown ensures consistent, proper belt tracking and tighter tolerances
  • Automatically turns any conveyor into a magnetic separator
  • Reduce operating expenses:
    – Remove potentially harmful tramp ferrous metal before it damages expensive processing equipment
    – Discharges tramp metal away from the normal product flow, improves product purity
  • Permanent magnets operate without electric power supply
  • Lifetime warranty on the performance of the
    magnetic field

Construction

  • Heavy construction reduces the likelihood of metal fatigue and pulley failure in severe applications minimizing down-time and maintenance requirements
  • Full depth weld with reinforcing bar on single longitudinal seam featured on each Douglas Permanent Magnetic Conveyor Pulley
  • Crown face pulleys are furnished standard, flat face must be specified
  • Douglas hubs feature full depth welds on the inside and outside of the pulley end disk decreasing
    the likelihood of end disk failure due to shaft deflection and shock loads
  • Douglas hubs and bushings are interchangeable with QD®* or XT®** style, maintain tighter holding power to the shaft and eliminate shaft damage caused by set screws or welded in shafts
  • Stainless Steel Rim standard on all permanent magnetic pulleys

Options

  • Hot Vulcanized Pulley Lagging (may decrease magnetic field strength up to 30%)
  • Shafting
  • Bearing Assemblies
  • Optional Douglas Keyless Locking Assemblies available
 

Self-Cleaning Permanent Magnetic Conveyor Pulleys

Benefits

  • Reduce operating expenses:
    - Remove potentially harmful tramp ferrous metal before it damages expensive processing equipment
    - Automatically discharge tramp metal away from the main conveyor
  • Improve product purity
  • Permanent magnets operate without electrical hook-ups
  • Made in the U.S.A. with standard power transmission components for simple maintenance operation

Construction

  • Heavy grade structural steel frame complete with crown face heavy duty lagged head pulley, crown face heavy duty tail pulley and slide tube belt take-ups
  • Heavy duty rubber cover belt standard with hot
    vulcanized cleats
  • Head and tail pulley guards
  • Shipped complete, factory test run and ready for installation
  • CLASS II shaft mount gear drive with TEFC motor for long trouble free service life

Options

  • Heavy duty rubber cover belt with hot vulcanized cleats standard
  • Stainless steel or armor clad belts optional
  • Two mounting options: across the belt or in-line at the discharge point of the conveyor
  • Hydraulic Drive
 

Manual Cleaning Permanent Magnetic Separators

Benefits

  • Reduce operating expenses:
    – Remove potentially harmful tramp ferrous metal before it damages expensive processing equipment
    – Performs similar to Cross Belt Magnet except manual cleaning of ferrous metal is required
    – Improve product purity
  • Permanent magnets operate without electrical hook-ups
  • Lifetime warranty on the performance of the magnetic field strength
  • No exposed or moving parts to wear or damage gives trouble-free service and longer life

Construction

  • Magnetic box constructed of heavy grade first quality structural grade steel with permanent ceramic magnets
  • Shipped complete and ready for installation

Options

  • Pivot arm available for easy cleaning
  • Two mounting options: across the belt or in-line at the discharge point of the conveyor
 

Super Duty Cross Belt Separator

Benefits

  • Reduce operating expenses:
    - Remove potentially harmful tramp ferrous metal before it damages expensive processing equipment
    - Automatically discharge tramp metal away from the main conveyor
  • Improve product purity
  • Permanent magnets operate without electrical hook-ups
  • Made in the U.S.A. with standard power transmission components for simple maintenance operation
  • Up to 30% more powerful than other permanent magnetic separators

Construction

  • Heavy grade structural steel frame complete with crown face heavy duty lagged head pulley, crown face heavy duty tail pulley and slide tube belt take-ups
  • Heavy duty rubber cover belt standard with stainless steel cleats
  • Head and tail pulley guards
  • Shipped complete, factory test run and ready for installation
  • CLASS II shaft mount gear drive with TEFC motor for long trouble free service life

Options

  • Heavy duty rubber cover belt with hot vulcanized cleats standard
  • Stainless steel or armor clad belts optional
  • Two mounting options: across the belt or in-line at the discharge point of the conveyor
  • Hydraulic Drive