Products Catalog

Specification

Model 501XL has a capacity of 400 grams of coal per minute using a screen with 0.024" diameter perforations and is recommended to pulverize minus-4 mesh coal to minus-60 mesh. In the spring-base model, springs hold the sample cup against the seal and the hand lever assembly is used to release the cup.

Features

A quick-opening latch provides easy access to the pulverizer and cuts power to both motors when the door is open.
The pulverizing chamber is completely machined and sealed.
The one-piece, dynamically balanced rotor has hard, coated hammers.
Screen plates are circles with the loose ends held by two lock pins that extend into the pulverizing chamber. Available perforation diameters are ( in inches) 0.020, 0.024, 0.033, 0.040, 0.0625, and 0.093. Also available are 0.010 X 17/ 32 inch slots.
A 390-cubic inch ( 6390 cm³ ) sample cup.
The feed auger is chain-driven from an enclosed 1/ 8 HP, 2.7 amp, 115 V, single phase, TEFC, AC gear motor. The auger speed is about 130 rpm.
The rotor is belt-driven by a 1 HP, 5.5 amp, 230 V, single phase, 60 Hz, TEFC motor. The speed is about 8200 rpm.
An enclosed Nema-12 motor starter has overload protection for each motor.
Overall Size: 23H x 19 1/ 2W x 27D; Shipping Weight: 200 lb.
The pulverizer is mounted on four rubber base pads.
Wired to NEC standards. Other wiring configurations are available.

Supplied with

A standard 60-cubic inch ( 980 cm3) capacity, feed hopper.
Five screens plates.
About 10 feet of cable to connect to the power source.

Additional Models

Catalog Number Volts/ Phase/ Hertz
91-7121-01
Spring Base 230/ 1/ 60
91-7121-02 Air Base 230/ 1/ 60
91-7121-03 Spring Base 230/ 1/ 50
91-7121-04 Explosion Proof Air Base 230/ 1/ 60
91-7121-05 Explosion Proof Spring Base 230/ 1/ 60
91-7121-06 Air Base 230/ 1/ 50
91-7121-07 Extended Hopper Air Base 230/ 1/ 60
91-7121-08 Air Base 115/ 1/ 60
91-7121-09 Spring Base 115/ 1/ 60
91-7121-10 Extended Hopper Spring Base115/ 1/ 60
91-7121-11 Extended Hopper Spring Base 230/ 1/ 50

91-7121-12

Explosion Proof Spring Base
115/ 1/ 60
91-7121-13
Extended Hopper Air Base
115/ 1/ 6