Laboratory Crushers are available with four sizes of jaw openings and various capacities to suit the needs of batch laboratories and all continuous laboratory test plants and pilot test plants. Various construction features on the three types of Laboratory Jaw Crushers ensure their ruggedness and durability for constant usage over long periods of time. All units have main frame cast in one piece and reversible jaw plates cast of manganese steel. The smaller size crushers are furnished for belt drive or motor drive and with either of these drives provision is made for hand operation if desired. The larger units are available for power drive only with belt or motor. Let us make recommendations for type and size crusher for your batch laboratory or continuous or pilot test plant[email protected]
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The (Type I) Laboratory Forced Feed Jaw Crusher is furnished in two sizes. The 5″x 6″ size is excellent for crushing in ore testing laboratories and continuous test plants. The 2¼”x 3½” size is ideal for assay or batch testing laboratories for such uses as sample crushing
This crusher is the high capacity, forced feed type with a one piece cast alloy iron frame. The eccentric bumper is special nickel cast iron and mounted on two tapered roller bearings which are sealed to exclude dirt. The eccentric shaft is machined from chrome nickel. The bearings are equipped with alloy bronze cast insets. All bearings are fitted with Klean seal fittings. Jaw plates and cheek plates are reversible and are of manganese steel. The safety toggles on these units may be either long or short, the length depending on the size product desired. Both sizes of crushers are available for motor drive using V-V or flat belt drive and the 2¼”x 3½” size may be furnished for hand or belt drive. Cast steel frames can be supplied
The 2¼”X 3½” (Type I) Laboratory Forced Feed Jaw Crusher is available incorporated into a crusher-pulverizer unit on a common base with a single driving motor. The pulverizer unit is the McCool Laboratory Pulverizer which is of the disk type, designed for grinding virtually any material, and for pulverizing to any mesh in one operation. This crusher-pulverizer unit is compact, efficient, and portable and ideal for use in laboratories
The (Type II) Laboratory Forced Feed Jaw Crusher is available in only one size, 5″x 6″. This crusher is similar to the Type I crusher but with frame and bumper made of cast steel. This construction adds considerable strength to the shock resisting parts of the crusher. The bearings are all of special design; they are bronze and will stand continuous service, such as continuous test and pilot test plants require, without danger of failure. The jaw and cheek plates are manganese steel and are completely reversible, thus adding to their wearing life. The jaw opening is controlled by the position of an adjustable wedge block. The crusher is usually driven by V-V but can be arranged for V-flat and flat belt drive
The 3″x 2½” (No. 1) Laboratory Jaw Crusher will reduce hard rock from 2½ inch to ¼ inch and finer at a rate of from 50 to 150 pounds per hour. This unit can be quickly and thoroughly cleaned as a safeguard against salting succeeding crushing, and provides an excellent means of reducing small quantities of ore samples quickly and efficiently, using either hand or power drive. Power driven unit is equipped with two V-belts
The frame of this crusher is a one piece casting, fixed jaw plates are manganese steel, and movable jaw is alloy steel. Jaw plates are bolted so they may be reversed, thus doubling their operating life, and the movable jaw is pivoted to give a forward and downward motion, greatly increasing capacity on wet, sticky ores. Toggle pin has been eliminated by a new design pitman-toggle movement. Any wear that occurs in the toggle assembly is taken up by a large coil spring. Fineness of the crushed product is controlled by replaceable shims. Lubrication is by grease cups as standard but Alemite fittings may be supplied
The 4½”X 3¼” (No. 2) Laboratory Jaw Crusher is similar to the No. 1 unit but is larger and provides greater capacity with increased strength for heavier work. This unit is available for power drive only and for belt drive is equipped with tight and loose pulley in addition to a heavy balance wheel. This larger unit will crush approximately 360 pounds of quartz per hour to 4 mesh. Frame is cast with heavy lugs in back for mounting electric motor. New motor support on individual motor driven units is designed to use part of the weight of the motor to maintain uniform tension on the V-belts. Three V-belts are provided on this unit for motor drive
CRUSHER, Ore, Braun, Simplex—A cast iron crusher of rigid construction. Among its important features are the ease with which it may be opened for cleaning, and the simplicity of adjustment. One blow of a hammer loosens the wedge holding the non-vibrating jaw in place, allowing this jaw to be lifted out, thereby giving sufficient access for cleaning
The fineness of the product obtained is regulated by increasing or decreasing the size of the discharge or lower opening of the jaws; this can be accomplished by a few turns of two regulating screws, which have hand wheels, obviating the necessity for use of wrench or other tools. The Braun Simplex crusher is made in one style only, for both hand and power operation. The flywheel has a handle attached for hand operation. The power pulley is 16 inches in diameter, with a 2½ inch face, and requires ½ H.P. The jaw is 6×3 inches, and the opening is 2×3 inches
Practically of all steel construction, the frame plates being made of steel and all other essential parts subjected to strain being similarly made of steel. The Chipmunk Crusher has a jaw movement that insures a large capacity and impels the discharge, making it adaptable for crushing both hard and soft materials
The vibratory jaw is mounted upon an eccentric at its upper end and rests against a toggle at its lower end. The eccentric imparts a circular or gyratory movement to the upper end, while the toggle compels the lower end to describe an arc of a small circle. This movement is both forward and downward and impels the discharge
An adjusting screw passes through the front spacer casting and fits into the recess in the adjusting block. This block engages with a service block, which presses against the stationary jaw. This device allows close adjustment, is strongly constructed and easily manipulated
The Chipmunk Jaw Crushers have the greatest capacity (size of jaws considered) of any crushing device. The type VC can be operated by either hand or power. It will reduce rock from about 214 inches down to 14 inch and smaller at a rate of 400 pounds per hour. The type WC is intended for power operation, and will crush rock at a rate of 1500 pounds per hour
The equipment illustrated above includes the Braun Chipmunk Crusher and the Braun Type UA Pulverizer, both directly connected with V Belt drive to a single ball bearing enclosed type electric motor mounted on a special sliding base with adjustments for belt tightening. The bench top is three feet deep and four feet long:
In the (Cone and Ring Type and buck types) Laboratory Crusher the crushing of quartz from ½ inch or ¾ inch to 20 mesh can be accomplished at the rate of 4 pounds per minute. For many years it has been standard equipment in samplers, mills and large mines where continuous or intermittent dry grinding is done
The ore is ground between a revolving cone and a bell-shaped hopper, leaving the machine through double discharge openings. Size of product is controlled by a conveniently located handwheel. Drive is by a gear and pinion, supplied with tight and loose 18″x 6″ pulleys for flat belt drive, to operate about 150 R.P.M. on drive shaft. Grooved tight pulley and V-belt drive with 5 H.P. motor is also available
(Type C) Laboratory Crushing Rolls are usually used as a secondary crusher, handling products from jaw crushers or gyratory mills and for making products for pulverizers. For certain special applications they are used as a continuous grinding unit
The main frame and stationary roll journal boxes are cast as one piece, thereby assuring rigidity and greatest possible strength to withstand severe shocks. The roll spacing may be changed quickly and easily while rolls are in operation by means of a handwheel to control product size. Heavy compression springs protect the shells and bearings from excessive loads and shocks
The roll shells are constructed of forged steel, and for rolls smaller than 12″ diameter the rolls and shafts are constructed as a replaceable unit. In the 12″ diameter size, replaceable roll shells are provided. Roll faces are ground smooth and true for efficient fine grinding
Various drives are available. The unit drive, with one motor and one set of double V-belts mounted with crushing rolls on a common base of welded steel, is ideal for normal laboratory crushing operations
The (Type M) Laboratory Crushing Rolls embody the latest improvements and are constructed as a self-contained unit with proper provisions for adjustment and lubrication, and are completely housed and protected from dust
The main frame is cast in one piece and of the best grade of gray iron. The stationary roll journal box is cast in the frame and movable roll is mounted on a sliding saddle of especially heavy design which slides on a machined surface. All bearings are outside of the housing. The shaft is of forged steel of sufficient diameter to withstand severe strains and shocks without deflection
All roll shells are made of heavy selected rolled steel to provide highest wearing qualities. Roll shells are bored to a straight taper corresponding to the taper of the cast iron hub and are held in place by shrinkage and reinforced by heavy lug bolts. The roll hub is securely keyed to the shaft by a full hub length key
The movable roll is held in position by two double helical springs which are housed in main frame casting. The springs are held at any desired tension by lock nuts and the machine may be dismantled without changing adjustment of the springs
Various drives are available. The unit drive with one motor and one set of double V-belts mounted with crushing rolls on a common base of welded steel is ideal for normal laboratory crushing operation. Let us make recommendations for your laboratory unit
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The CrazyCrusher brand Rock Crusher is 100 percent steel, and it is 100 percent made in the U.S.A. by 100 percent Americans! The jaws are made of 3/8 steel, and the face has horizontal welds across them that not only help grip and pull down rock pieces, it also prevents wear on the actual jaws. On the moving jaw, vertical "teeth" were added to help dig in and crack the hardest rocks! The adjustable jaw moves from a 1/2 inch opening to all the way closed, for that final grind to get your samples as small as you can for testing. The very bottom of the jaws is what does the "grinding" of the rock into sand sized particles and smaller, some so small it is "air borne". Eventually, like all things, the jaws can wear away, but with this style of adjustable jaw, you can keep moving it in tight for a long time!
Although this item was first invented and patented for crushing ore in the field, this handy machine has also been discovered by a different group of users— for the purpose of crushing glass for artwork, also known as "frit glass" which ranges in size from an uncooked grain of rice and finer. The Crazycrusher works perfect for this! The user gets to control the size more accurately due to the crushed glass falling out of the crusher in lieu of being in a pestle and mortar and just re-crushing everything by “pounding sand." Especially for those artisans who work with large quantities of glass, they can do it better and faster with a handy Crazy Crusher!
USING THE CRAZYCRUSHER The smaller the rocks, the further down it will go into the jaws, and the easier it is to crush it finer. The upper part of the moving jaw is primarily a forward and back motion, whereas the lower part of the jaw is primarily an up and down motion. NEVER operate the CrazyCrusher with the steel safety plate open! Initial breaking of rocks can and will cause chips to fly out of the top. The safety plate is designed to keep the chips inside the crusher where they belong— not in your eyes! It is highly advisable to wear good leather gloves or mechanics gloves while working this rock crusher to avoid getting blisters. A catch container is included with the rock crusher. Start with the adjustable plate fully open by turning the adjusting screw counter-clockwise, then turn it in a couple turns. Open the safety plate, put your rock(s) in, close the safety plate and press down on the handle harder and harder until it breaks. If it does not break immediately, give it a few "slams" up and down, putting some weight behind it. If you plan on grinding the rock to a fine sand, have the classifying screen handy in a pan or something. Once no more pieces are coming out, dump your catch container into the screen and shake the screen. What does not go through the screen and into your pan can be dumped back in to the crusher after you put your catch container back under the crusher and turn the adjusting screw clockwise to about a 1/4" gap between the lower jaw area when the handles are in the down position. Pour the remaining rock particles back in from your screen into the jaws, close the safety plate and work it again, repeating the process until all the sample passes through your selected screen. To grind a sample, or to grind black sands for further processing, simply close the adjustable jaw until it is resting against the moving jaw. Raise and lower the handle a couple times to assure it is closed all the way and you have full movement of the arms. Starting with the handle in the down position, pour in a few tablespoons of black sands into the CrazyCrusher, and start working the handle up and down until no more sand is coming out. Short choppy strokes work better than full strokes. A grinding operation will create small amounts of ai-borne dust. It is ALWAYS important to either wear a dust mask or be sure to be up wind of the dust. The reason is that you do not know what is in that rock! There could be arsenic and other nasty things in the ore so you don't want to be breathing in that dust! A dust mask is important, especially when using a drywasher! There could be Haunta virus in the sand, mercury— you never know, so please wear a quality dust mask!