TRANSFER POINT & SEALING SYSTEM
  • MARTIN
  • Belt Support
  • Sealing System
  • Belt Tracking
  • Tail Pulley

 

By preventing spillage and airborne dust, Martin Engineering's Transfer Point Technologies will reduce equipment damage, reduce cleanup, control mainte­nance expenses, and improve the safety of personnel. But Martin Engineering is more than an equipment sup­plier. We have created and implemented a compre­hensive approach to improving transfer pointperformance.

 

Air-Supported Conveyor Systems


System is suitable for new conveyor construction
or as an economical upgrade for existing
troughed idler conveyors.

Instead of using idlers, the MARTIN® S-CLASSTM Conveyor System supports the belt with a 1/32-inch (1-mm) cushion of air supplied by a low-horsepower centrifugal fan. This air-supported system reduces friction and stabilizes the belt path to prevent spillage and load segregation. The totally-enclosed MARTIN® S-CLASSTM Conveyor System acts as its own ductwork to prevent the escape of airborne dust.

  • Cuts Power Consumption
    Air from a low-power fan supports the belt with less friction and less power demand than idler conveyors.
  • Controls Dust and Spillage
    Fully-enclosed conveyor with stable belt path means no dust to collect, no spillage to clean up.
  • New Construction or Retrofit
    Modular sections make economical retrofit of CEMA-standard conveyors. Rugged plenum design saves money in new construction too.
  • Light yet Sturdy
    Lightweight to be installed easily, yet strong enough to handle heavy material.

 

MARTIN® INERTIAL FLOW Transfer Chute Technology

Reduce the escape of dust and improve conveyor
performance by confining the flow and minimizing impact,
turbulence, material degradation, and air entrainment.

MARTIN® Transfer Points are custom-engineered by Martin Engineering to eliminate blockages, reduce impact, centralize loading, and guarantee the material flow rate. Designed to minimize the generation and escape of airborne particles, they are especially suited for handling friable, dusty material such as PRB coal without requiring "baghouse" dust collection systems.

  • Controls Dust without Baghouses Eliminates the need to install or expand "baghouse" dust collection systems.
  • Improves Loading
    MARTIN® INERTIAL FLOWTM Transfer Technology controls load placement, reduces impact to extend belt life and decrease spillage and dust generation
  • Cuts Maintenance Costs
    System keeps fine particles in main material stream without consuming power to drive dust collectors and requiring bag cleaning.
  • Eliminates Plugged Chutes
    Engineered flow pattern keeps material moving and allows conveyors to achieve design capacities

 

BELT SUPPORT SYSTEMS

Belt Support Impact

Installed below conveyor loading points, impact cradles cushion the impact forces from falling lumps of material. Impact cradles preserve the life of the belt, structure, and components, while stabilizing the belt line for improved edge sealing and belt tracking.

MARTIN® GUARDABELTTM Impact Systems

  • Protect the Belt
    Absorption layer cushions high energy impact.
  • Reduce Cleanup Expenses
    Cradles reduce spillage by stabilizing the belt path for effective sealing.
  • Minimize Power Consumption
    Belt runs smoothly over low-friction UHMW top layer.
  • Stands Up to Tough Conditions
    Rugged steel framework is engineered to withstand punishing conditions.
  • Engineered to CEMA Standards
    To match your operating requirements, MARTIN' GUARDABELT- Cradles are engineered to meet CEMA Standard 575-2000 specifications.

Reduce damage to belt and structure and stabilize the belt line to prevent spillage by absorbing impact force in the conveyor loading zone.

 

Light-and Medium-Duty Impact Cradles

  • “C” Channels form rugged base.
  • 48-inch (1200-mm) Standard Bar Length; custom lengths available.
  • Match Any Standard Troughing Angle with adjustable support arms.
  • Compensate for Bar Wear with adjustment cam.

    

Heavy-Duty Impact Cradles

  • Heavy-Duty Impact Bars feature 1 inch (25 mm) of UHMW with 4­-5/8 inches (117 mm) of cushion rubber.
  • Steel "Backbone" Reinforcement under each impact bar.
  • Track Mounted Sections slide into framework under belt for ease of maintenance.
  • Cradles Available in 24-inch (600-mm) Length.

 

MARTIN® TRAC-MOUNTTM/ Idler

Use sliding frames to fit into tight spaces between cradles, ensuring proper rolling support for the belt.

  • Simplifies Maintenance
    Individual rollers slide into position, lock in place from outside the belt. No need to lay idler sets on their side for installation or service.
  • Fits into Tight Spaces
    Slide-in frames need only 8 inches (200 mm) of space for 6-inch (150­mm) rollers.
  • Conforms to CEMA Standards
    Available for any belt width or troughing angle.
  • Matches Your System
    Frames can be equipped with any brand of rolls-conventional or impact-to match conveyor specifications.

Belt Support Sealing»

 

BELT SUPPORT SEALING

For an effective transfer point it is essential that the belt line be stabilized: If the belt is allowed to sag or flex under the stress of the material load, dust and fines will escape. Belt support cradles stabilize the belt's path to improve sealing and tracking.

 

MARTIN® GUARDASEALTM Belt Support Cradle

  • Reduce Spillage and Dust
    Cradles stabilize the belt path and support the edges for effective sealing.
  • Reduce Maintenance Costs
    Reduced spillage reduces service expenses and cleanup labor.
  • Extend Belt Life
    Cradles eliminate pinch points where trapped material can gouge the belt.
  • Simple to Service
    Easy bar installation and replacement; adjusts easily to compensate for wear.
  • Extended Service Life
    Unique "box bar" provides dual­ wear surfaces for double wear life.
  • Systems to Match Your Conveyor
    Cradles available to fit any troughing angle. One bar per side for belts 18 to 42 inches (400 to 1200 mm) wide; wider belts require two bars per side. Center rollers supplied on 48-inch units and above. Optional center roller for 18-42-inch units.

 

MARTIN® GUARDASEALTM Idler Conversion Kit

  • Simple to Install
    Replace wing rollers easily. Kit adapts to a wide range of idler manufacturers.
  • Flexible Placement
    Custom bar lengths improve belt support where the conveyor needs it most.
  • Stable Line Improves Sealing
    No more sag, no more spillage! Stable belt allows effective sealing.
  • Economical Upgrade
    Retrofit kit uses existing idler frames and center rollers for a cost conscious conveyor improvement.
  • Kits to Fit Your Conveyor
    Double-bar Conversion Kits are standard for belt widths greater than 48 inches. Available for heavy loads and wider belts.

 

SEALING SYSTEMS

Preventing the escape of dust and fines is the job of the transfer point sealing systems. Installed along the sides of the belt, the skirtboard sealing systems must combine effective containment of fines with an extended service life and low maintenance requirements. A MARTIN®Tailgate Sealing System completes the enclosure to contain the dust.

 

MARTIN®APRON SEAL TM Skirting Systems

  • Dual-Seal Efficiency
    Primary seal contains material load; secondary seal captures particles leaking under primary seal.
  • Minimal Adjustment
    Elastomer supplies effective sealing force with minimal maintenance.
  • No joints to Leak Material
    One-piece continuous strips available in lengths up to 300 feet (91.4 m).
  • Ideal Replacement System
    System works with virtually any clamp.
  • Selections to Match Your Needs
    Select from Standard 1-Piece or Heavy-Duty 1-Piece System to suit application conditions; food-grade, high-temperature, and MSHA ­approved sealing strips available

 

MARTIN ® BOCOTM Self-Adjusting Skirting System


Patented sealing system self-adjusts, to prevent spillage and eliminate the need for skirtboard maintenance. The low-profile design installs simply in tight spaces.

  • Seals Without Maintenance
    System floats on belt, automatically self-adjusting to maintain an effective seal.
  • Low Belt Edge Requirement
    Fits on any belt; provides effective seal on conveyors where chute width allows as little as 1.25 inches (32 mm) of free belt area for sealing.
  • Fits Tight Places
    Low-profile skirting assembly needs only six inches (152 mm) clearance, allowing installation in small spaces.
  • Quick & Easy to Install
    Short 48-inch (1239-mm) clamp sections with built-in plug-weld guides simplify installation.
  • Long-Lasting Performance
    Sealing strip provides 2-inch (51­mm) wear life. Zinc-plated moving parts will not seize or rust together.
  • "No-Tool" Replacement
    Linchpin system makes replacement of the worn sealing strip a quick and easy operation.
  • No Leaky Joints
    Continuous lengths up to 300 feet (91.4 m) eliminates leaky joints in rubber sealing strip.
Tailgate Sealing Box »

 

 

MARTINTM Tailgate Sealing Box

 

  • Prevents Material Rollback
    Seal keeps material from sliding off the belt and accumulating at the foot of the conveyor.
  • Prevents "Belt Cleaner" Effect
    Low-pressure seal won't scrape adherent carry back from belt.
  • Avoids Material Buildups
    Belt motion deflects tail seal to prevent accumulation at the back of box.
  • Simplifies Cleanup
    Easy-opening MARTIN® CYATM Steel Inspection Door provides access to return material to conveyor.
  • Installs Easily
    Sealing box is field-fabricated for a precise fit to the conveyor.

 

MARTIN® DURT TAMERTM Wear Liner

  • Extends Sealing System Life
    Wear liner protects sealing system from abuse by the material load
  • Improves Sealing Performance
    By protecting the sealing system, MARTIN® DURT TAMERTM Wear Liner allows effective containment of fines and dust at the belt edge.
  • Materials to Match Your Needs
    Liner selections, including abrasion resistant plate, stainless steel, ceramic-faced steel, and UHMW, are available to meet your needs.
  • Martin Engineering recommends the use of straight wear liner.
    Martin Engineering offers wear liners for installation by bolting (with predrilled and countersunk bolt holes) or welding

 

BELT TRACKING SYSTEMS

Belt wander can originate due to many causes, from defects in the conveyor structure, to idler misalignment, to off-center loading. Whatever the origin of the misalignment, belts that mistrack will suffer a number of problems, including material spillage and costly damage to belt edges and the steel conveyor structure.

MARTIN ® Belt Tracking Systems

To avoid misalignment damage to belt edges and preserve the life of expensive belting, install MARTIN ® Belt Tracking Systems. Proper belt tracking systems will:

  • Preserve Belt Life
    Continuous belt alignment reduces edge damage to extend service life.
  • Reduce Maintenance Chores
    Correct tracking removes the repetitive belt tracking from the maintenance project list.
  • Improve Conveyor Productivity
    Proper tracking improves load placement, reduces spillage, and boosts plant efficiency.

MARTIN® Belt Tracking Systems Selection Guide
MARTIN® TRACKER Systems are available in three models to match the requirements of each application. Select the appropriate unit based on belt thickness and conveyor speed.

 

TRACKER Belt Tracking System »

 

MARTIN® TRACKER Belt Tracking System


Automatically and
continuously steers the belt
to the center.

 

These self-aligning idlers automatically sense and continuously correct belt tracking. Light touch of belt against guide roller creates precision corrections.


  • Quick Reaction, Positive Steering
    Patented aligner translates force of misalignment to steering roller to return belt into proper path.
  • Uppers and Lowers
    Lower Unit installs where the belt enters a pulley to center the load; place Upper Unit on the carrying side to keep the loaded belt on track.
  • Reversing Belts
    Reversing Upper and Lower Units are available to handle reversing belt applications (not shown).
  • Matches Your System
    Standard, Heavy-Duty, and Extra Heavy-Duty units available for belts up to 84 inches (2200 mm) wide. Units also available for offset idlers (not shown).
  • Long Effective Range
    Range of up to 150 feet (45 m).

Note: Idler rollers are not included as standard equipment on MARTIN® Belt Tracking Systems. Martin Engineering can supply idler rollers as an option or customer can use existing conveyor idler rollers.

 

TAIL PROTECTION PLOWS

 

Tail Plow Selection Guide

Lumps of material can fall from the load onto the return strand of the belt and then become trapped between the belt and a pulley. Tail Plows deflect fugitive material away to protect the tail pulley and belt from this impingement.

 

Martin Engineering offers plows to suit your conveyor and operating conditions.


MARTIN® Standard V-Plow


Effective Protection
Removes material before belt enters the tail pulley.
Economical Solution
Ideal for less-demanding applications.

 

 


MARTIN® TORSION ARMTM V-Plow
For conveyors running in one direction only.

Maintains Pressure
Self-adjusting to clean effectively in all stages of blade wear.
Safe for the Belt
Three-point suspension keeps plow parallel to the belt.
Easy Blade Replacement
Bolt-on blades available in rubber or urethane.
Proven Stability
Ideal for use with winged tail pulleys.

MARTIN® Diagonal Plow For reversing belts

Works in Two Directions
Nitrile rubber blade protects pulley in either direction.
Cleans Without Adjustment
Plow installs in brackets and floats on belt surface.

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