Mine-Duty Rigid

Underground Conveyor Structure
Conveyor Structure

Underground Conveyor Structure

Mine-Duty Rigid Underground Conveyor Structure

 

Floor-mounted

Floor_mounted_rigid

Roof-mounted

roof mounted rigid

With the introduction of high production longwall mining many years ago, the need developed for a conveyor structure that was more sturdy, yet still portable enough to be installed quickly.  Continental mine-duty rigid structure, with a boltless construction, structural channel side-member, was designed to fill this need. Bolted construction design is also available for more permanent installations.

Idler Options

Joy Idler Options

OR-C

LRC Idler Options

LR-C

Idlers and Return Rolls

V-return

LR-C Idlers and Return Rolls

Return Roll

Idler and Return Roll Designs Available

HC series

HC series idler rolls are produced using proprietary manufacturing and assembly techniques that control the bearing end-play setting to precise engineered specifications.  Bearing and seal cavities are filled with grease from the factory to promote long-life operation.

The HC roll features:

  • 3/4”, modified geometry tapered roller bearings
  • Five-stage seal design contributes to long-life operation without relubrication
    • An exterior shield provides an initial barrier to divert contaminants away from the bearing cavity.
    • A flinger employs the natural centrifugal forces of a rotating idler roll to redirect potential contaminants away from the bearing cavity.
    • A grease-filled, horizontal labyrinth seal impedes progress of contaminants toward the bearing.
    • A contact lip seal provides additional sealing protection and keeps lubricant in the bearing cavity.
    • A rear seal provides added protection for the grease reservoir.

HD series

Our HD idler roll has the same 3/4”, modified geometry tapered roller bearing and five-stage seal design as our HC idler roll design.  In addition, our engineered shaft is available on all return rolls and 42” belt width and wider center troughing rolls.

HD-1500

The HD-1500 is a heavy-duty version of our HD series.  Troughing idler carrying capacity is up to 1,500 lb. load rating for today’s higher capacity applications.

HX Series

HX series deep-groove ball bearing idler rolls are available with 2RS or open bearings.  Bearing and seal cavities in open bearing rolls are filled with grease from the factory to promote long-life operation.

  • The HX-30 idler incorporates a 6306 (30 mm) bearing.
  • The HX-40 idler incorporates a 6308 (40 mm) bearing.

The HX series idlers feature the following:

  • Engineered shaft, available on all HX series return rolls and on 42-inch belt width and wider troughing rolls, reduces overall roll weight and shaft deflection
  • Retaining sleeve creates a smooth contact surface for the rotating lip seal
  • The back seal allows for a larger grease reservoir for open bearing rolls
  • A flinger employs the natural centrifugal forces generated by a rotating idler roll to redirect potential contaminants away from the bearing cavity
  • Triple labyrinth seal impedes progress of contaminants toward the bearing.
  • Counter-bored shell with protected weld contributes to proper bearing alignment
  • Lip seal designed to provide added protection for the bearing

SDX-2200

The SDX-2200 is a super-duty idler for today’s higher capacity applications.  Troughing idler carrying capacity is up to 2,200 lb. load rating.  Bearing and seal cavities are filled with grease from the factory to promote long-life operation.

The SDX-2200 idlers feature the following:

  • 1 ¼”, modified geometry tapered roller bearings
  • Adjusting nut provides additional protection to seal area and establishes a very precise bearing adjustment
  • Extra-heavy die-formed end bracket designed with super-wide base and direct foot mounting for increased rigidity and resistance to impact
  • Engineered shaft is available on all return rolls and on 42-inch belt width and wider troughing rolls
  • Heads are press fit into the roll and positively locked into position by means of our unique groove-lock design.  This approach provides a truly concentric, scale-quality roll assembly.

Both sealed and regreaseable designs are available.

HXF-40 series

The HXF-40 series idler is designed for today’s super high-capacity operations.  Bearing and seal cavities are filled with grease from the factory to promote long-life operation.  Applications include high-tonnage mining and industrial applications, mining operations with overburden removal and underground longwall coal mining operations that want to more closely match tonnage rates to highly productive longwall mining machines.

Idler roll features include:

  • 40 mm spherical roller bearings
  • Engineered shaft reduces overall roll weight and shaft deflection
  • Back seal allows for a large grease reservoir
  • A flinger employs the natural centrifugal forces generated by a rotating idler roll to redirect potential contaminants away from the bearing cavity
  • Triple labyrinth seal impedes progress of contaminants toward the bearing.
  • Counter-bored shell with protected weld contributes to proper bearing alignment
  • Lip seal designed to provide added protection for the bearing

Idler Options

In addition to troughing idlers and return rolls, Continental offers a variety of other options, including the following:

V-return idler

V-return idlers assist with belt training on the return belt and are ideal for long conveyors.

Impact idler

Impact idlers are utilized in the loading area and are designed to absorb shock and help protect your conveyor belt.

Transition idler

Adjustable transition idlers from 5 to 35 degrees are available to transition your conveyor belt at the pulley.

Self-aligning idler and return

Troughing idlers and return idlers, in a variety of configurations, are available to assist with belt training.

Rubber disc return

Return idlers and self-aligning idlers are available to help reduce wet and sticky material buildup on the return side of the belt.

Roof-mounted Structure Accessories

Related Structure Equipment

Continental rigid conveyor structure, incorporating rails, spreader bars, and drop brackets, is designed to be sturdy, yet still portable enough to be installed quickly.

Spreader bars

Continental spreader bars are utilized in roof-hung applications and are available for 3”, 4”, 5” and 6” channels.

Rails

Rails are available in a variety of sizes and lengths, and are properly sized for the application.

Drop brackets

Continental offers a variety of drop brackets for 3”, 4”, 5” and 6” channels. Drop brackets are available in a wide range of drop lengths.

Floor-mounted Structure Accessories

Related Structure Equipment

Continental rigid conveyor structure, incorporating rails, support stands, and drop brackets, is designed to be sturdy, yet still portable enough to be installed quickly.

Support Stands

We offer support stands for 3”, 4”, 5” and 6” channels.  In addition, the support stands come in a wide variety of lengths.  Foot weldments and upper support stands are available for larger channel size support stands.

Rails

Rails are available in a variety of sizes and lengths, and are properly sized for the application.

Drop brackets

Continental offers a variety of drop brackets for 3”, 4”, 5” and 6” channels. Drop brackets are available in a wide range of drop lengths.

Contact Us

P O Box 400

438 Industrial Drive

Winfield AL  35594

United States

+1 205 487 6492

info@cgmh.com