Models 63 and 83

CHANNEL FRAME CONVEYORS

STANDARD SPECIFICATIONS

CONVEYOR FRAME

Structural channel type. Model 63 constructed of 6" 8.2# channel and Model 83 constructed of 8" 11.5# channel. Side frames are assembled into a unit by bolt-connected intermediate spreaders, fabricated from tubular members. Channel flanges are turned "out" to prevent material "build-up" within frame. Head and tail sections are factory assembled. Intermediate sections are shipped knocked down to save freight and cubage charges. Factorv assembly available at slight additional charge. Head and tail sections are 5 ft. long, and stock lengths of intermediate sections are 5, 10, 15, 20 and 40 ft. Special length sections (in one foot increments), to meet exacting conditions, are readily available.   Stock widths are 18, 24, 30, 36 and 48 inches. For more information, See Table "A".


JOINTS

Bolted tubular frame connectors are provided between each section to serve as an assembly fixture and to add frame rigidity.


PULLEYS

Heavy duty, all steel welded type,   individually turned and crowned to ensure true concentricity with the bore. The entire face of the pulley is machined. Pulleys are equipped  with Taper-Lock or QD hubs and bushings.


IDLERS

MARCO Series M15 - 4 1/2" dia rolls, with pre-lubricated ball bearings which require no further lubrication. Troughing idlers are spaced on 4' - 0" centers with two extra at the loading point; return idlers are spaced on 10' - 0" centers. 35o idlers are standard. Idlers of other types and spacing are available upon request, at prices which vary with specifications.


BELT TAKE-UP

Screw type acid cleaned and plated, providing 21" adjustment.


RETURN BELT WIPER

"Plow type", equipped with gum rubber flashing, and is mounted in front of tail pulley to prevent entrance of material between return belt and pulley. The wiper is integral with the screw take-up, providing fixed relationship between vviper and pulley, regardless of take-up setting.


ASSEMBLY BOLTS

All the field assembly bolts are acid cleaned and plated.


LOADING HOPPER

The loading hopper is 5 ft. long, 8" in depth, depending on belt width,  and is designed to appropriately center material on the belt. It is equipped with adjustable gum rubber flashing to prevent leakage. Hopper length can be extended to any dimension, resulting in continuous side skirts.


SUPPORT LUGS

Heavy steel  lugs provide a pin-jointed connection to either steel or timber   supports. A sufficient quantity is provided for proper support.


MOTOR SUPPORT

Integral with shaft mounted reducer wherever possible. If conditions will not permit use of an integral motor support, then a structural steel motor support is furnished above the conveyor belt, providing material clearance.


CONVEYOR DRIVES

Drive includes shaft mounted helical gear speed reducer (gears are enclosed and running in oil)  driver sheave, driven sheaves and vee belts. All drive components are selected to adequately transmit horsepower required.

BACKSTOP

A backstop is provided when conditions indicate the belt and load will reverse under power failure. Backstop is mounted in the shaft mounted reducer, and runs in oil.


ELECTRIC MOTORS

Horsepowers vary with capacity length and incline. Motor sizes are selected with ample safety factors to provide an efficient and reliable power source. 1800 RPM TEFC, Nema design "C", hi-torque, 3 phase, 60 cycle, 230-460 volt motors are considered standard. Other enclosures, and motors with other electrical characteristics, are also available.


CONVEYOR BELT

The use of 35o troughing idlers on 4 ft. centers provides ideal conditions for the use of belts with synthetic fabrics. Strength of fabric, number of plies, and thickness of rubber top and bottom covers are combined to ideally satisfy the installation requirements.


OSHA (MSHA) GUARDS

Expanded metal guards are furnished for conveyor drive and all pulley assemblies.

 

OPTIONAL SPECIFICATIONS

HINGED CONVEYOR HOUSING
( Carrier Belt )

See Marco Hinged Conveyor Housing Specifications

Hinged conveyor housing is constructed of 18 ga. corrugated culvert sheets thru 30" width. 16 ga. above 30", mounted on 16 and 14 ga corrugated support bands, respectively. Carrier belt is adequatley covered and troughing idlers cannot be observed without opening housing.  Support bands are mounted with assembly bolts on 4'-8" ctrs.. and each housing section is provided with hinges for independent raising and lowering. Covers and bands are heavily galvanized. Assembly bolts are acid cleaned and plated.



RETURN BELT COVER

Formed 16 ga. flat sheet metal deck is provided to  prevent material spillage on to return belt. Furnished with plated assembly bolts. 'While return belt covers are available as an option, they are generally not recommended for most installations.


BELT WIPER ( For Head Pulley )

Equipped with double rubber squeegee and adjustable tension spring, providing constant pressure on belt surface. Mounted under pulley to provide greatest efficiency.


RUBBER LAGGING ( Heavy Duty ) FOR CONVEYOR PULLEYS

Heavy duty, top quality "ruff-top" rubber lagging - can be furnished on either crown or flat face pulleys. Installed in multiples of 6", 8" and 10" widths to ensure conformity to crown face. Recommended on drive pulleys where there is a possibility of belt slippage. Slide lagging and vulcanized lagging optional.


CONVEYOR SUPPORTS

A-frame supports are available. Assembly bolts are acid cleaned and plated.


OTHER OPTIONS

  • Shuttle Conveyors
  • Wind Guards
  • Retainers
  • Transition Sections
  • Discharge Hoods
  • Transfer Chutes
  • Self-Cleaning (Wing Type) Pulleys
  • Aluminum Drip Troughs
  • Continuous Side Skirts

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