Small Jaw Crusher 2 1/4″ x 3″

Small Jaw Crusher 2 1/4″ x 3″

US$1,000 $900

The 911MPEJAC23 is a Small Jaw Crusher of  2.25″ X 3″ manufactured to easily crush any rock from 2″ (50mm) down to a D50 of 700 micron (28 Mesh) which also correspond to a crushed discharge P80 size of 80% passing 1400 microns or 14 mesh.
The discharge opening (closed-side-setting) of this 55 mm X 75 mm “big-small crusher” you can adjusted with a wrench.canada manufacturer
With a short throw at a quick 525 RPM (speed eccentric overhead), this small rock crusher can almost pulverize without dusting of your run-of-the-mill, chain beating, hammermill small prospectors often buy.

This portable and lightweight (35 lbs.), is perfect for low volume metallurgical sample preparation or any small home laboratory a gold prospector would have in his garage.6 month warranty

Crushing Rate:

  • from 2.5″ rock to 3/8″ product = 150 lb/hour
  • from 3/8″ rock to 20 mesh product = 50 lb/hour
  • total from 2.5″ to 20 mesh in 2 passes = 40 lb/hr

IN-STOCK

Description

The Small 911MPEJAC23 is a 2.25″ X 3″ Jaw Crusher manufactured to easily crush any rock from 2″ (50mm) down to a D50 of 700 micron (28 Mesh) which also correspond to a crushed discharge P80 size of 80% passing 1400 microns or 14 mesh.small_jaw_crusher_performance_graph
The discharge opening (closed-side-setting) of this 55 mm X 75 mm “big-small crusher” you can adjusted with a wrench.
With a short throw at a quick 525 RPM (speed eccentric overhead), this small rock crusher can almost pulverize without dusting of your run-of-the-mill, chain beating, hammermill small prospectors often buy.
With a rated capacity to crush 25 lbs (12 kg) of material per hour, this portable and lightweight (35 lbs.), is perfect for low volume metallurgical sample preparation or any small home laboratory a gold prospector would have in his garage. At 80% < 14 mesh, the discharge from this small crushing machine is mostly liberated and ready for panning or shaking table.
All small jaw crushers come with an operating manual, pulley, preinstalled abrasion-resistant AR450 jaw plates. This economic crusher is sold without the 1 HP motor nor mounting supports. All crushers are offered with gas/diesel engine or electric motor.  If you decide to do-it- yourself, just be sure to ratio your speed/sheaves to have 525 RPM on the jaws and your rock crusher is set to crush.

If you need a tough small jaw crusher that is ready to go, you’ll want to buy the Laboratory Rock Crusher we also sell.


Crusher Motor Pulley Sizing

Typical Motor for this Rock Crusher

jaw_crusher_motorhttp://www.harborfreight.com/engines-generators/electric-motors/1-hp-agricultural-farm-duty-motor-68288.htmlrock crusher motor belt

Example Rock Crusher Customer Installation

WE RECOMMEND INSTALLING A GUARD AROUND ALL MOVING PARTS
YOUR SAFETY, IS YOUR RESPONSIBILITY

mini-jaw-crusher-installationmini_homemade_stone_crusherlittle rock crusher

OPTIONAL Feed Hopper

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SHIPPING & WARRANTY

small rock crusher (8)small rock crusher (4)
small jaw crusher (10)small rock crusher (6)


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Sizing the Pulley

The crusher pulley diameter depends on your motor speed.

Use http://gadi.agric.za/software/renting/pulley_calc.php with crusher at 525 rpm.

Crusher Manual

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Read the Manual Prior to the Use of the 2 x 3 Rock Crusher

The Small 2”x3” Jaw Crusher is designed to crush rock and rock like aggregates from 1.5”” size down to – 50 Mesh size depending on selected output setting. In order to maintain the long life and high performance standards your Crusher is designed for, it is essential to carefully observe and adhere to the following operating and maintenance instructions.

*Once Rock Laboratory Crusher is fully set up, run crusher empty for ½ hour for break in period*

HEALTH & SAFETY OPERATIONAL WARNINGS

  • Eye protection must be worn at all times while operating the rock crusher or while within 10ft of the machine. Pieces of stone can exit lid and enter the eyes causing injury or blindness.
  • Hearing protection must be worn at all times while operating the rock crusher. Prolonged exposure to noise levels above 85 decibels can damage hearing.
  • Foot protection must be worn at all times while operating the rock crusher. Open toed footwear must never be worn around the machine. Stone can fall on operator causing injury.
  • Loose clothing, long hair, dangling accessories, jewellery or other similar items that could catch must not be worn or must be properly secured while operating the rock crusher. Failure to do so can cause loose ends to get caught in moving parts resulting in injury or death.67-small-portable-concrete-crusher
  • Do not wear loose fitting gloves while feeding rock crusher. Only proper fitting gloves should be worn around rock crusher machine when handling sharp or rough materials. Do not wear loose fitting gloves, there is a risk of them get them caught in the machine resulting in injury.
  • Air mask must be worn while operating rock crusher to prevent inhalation of dust and debris during operation. Prolonged inhalation of rock related dust can cause long term health damages to the lungs.

INSTALLATION

Equipment Stand Installation:

If the Small Jaw Crusher was supplied with 2”X3” Mounting stand:

  1. Before attaching 50mm x 75mm Jaw crusher assembly plate, ensure that stand site is secure. Stand should be set on flat even ground. Make sure each leg of stand is flush to ground surface and capable of supporting weight. Crusher is designed to operate on level surface, any slopes that cause crusher to sit at an angle will effect operating effectiveness. Warning: When Placing stand on soft materials, make sure all legs will remain equally supportive to avoid topple risk, which could result in damage to crusher, and operator.
  2. Carefully place 2 x 3 Small Jaw Crusher assembly plate carefully atop stand so that Jaw Crusher dispensary, and motor mount adjustments properly line up.
  3. Firmly Bolt down Jaw Crusher assembly to stand with all four corner mounting points.
  4. Check level and stand surface intermittently during operation to ensure stability and optimal performance.

For all other Stand mountings:214-crushing-equipment-for-sale

  1. Before attaching the Laboratory Jaw crusher assembly plate, ensure that stand site is secure. Stand should be set on flat even ground. Ensure stand specifications are strong enough to support total weight of Crusher Mount. Make sure each leg of stand is flush to ground surface and capable of supporting weight. Crusher is designed to operate on level surface, any slopes that cause crusher to sit at an angle will effect operating effectiveness. Warning: When Placing stand on soft materials, make sure all legs will remain equally supportive to avoid topple risk, which could result in damage to crusher, and operator.
  2. Carefully place Bulldog Crusher mount atop stand. Ensure that nothing inhibits Crusher dispensary opening from underneath and that there is room for a bucket or collection hopper. Consider motor mount adjustment points and accessibility for future use.
  3. Firmly Bolt down Jaw crusher assembly with all four corner mounting points.
  4. Check level and stand surface intermittently during operation to ensure stability and optimal performance.

FEEDING INSTRUCTIONS

*NEVER OPERATE ROCK CRUSHER WITHOUT SAFETY GUARDS PROPERLY INPLACE OVER PULLIES AND FLY WHEEL*

Once properly mounted to a stand, and with safety guards in place your Rock Crusher is ready to begin crushing rock. Adhering to the following steps will yield the best results:

  1. Before turning on Rock Crusher, make sure jaws are free of debris.
  2. Plate collecting bucket or trough underneath dispensary area of rock crusher to catch particles.
  3. When Rock Crusher is running, feed rocks with a maximum size of 1.5” into top of Crusher. Do not over feed Rock Crusher, for best results allow only half the jaw area to be filled with rock at one time. Do not fill crusher right up to top of the jaws, this puts too much pressure on jaws and can damage bearings.
  4. Speed and Particle size are a factor of how the lower jaw width is set. Read how to adjust dispensary particle size in order to make changes. Smaller Particle size the longer it will take the Jaw Crusher to work through rock, the Larger the particle size setting, the faster the jaw crusher can work through rock.

Other tips:

  • Rock Crusher should be used outside, or, in properly ventilated area.
  • Rock Crusher is designed to be used by adults. Parental supervision is needed for operators who are under the age of maturity.
    • Do not engage in horseplay while operating the rock crusher.
    • Always pay attention while operating the rock crusher.
    • Do not operate rock crusher if you are sick, fatigued or is taking medications that cause drowsiness.
    • Only one person should feed the rock crusher at any one time.
    • Keep the floor around the rock crusher machine clean, dry and free from trip hazards. Do not allow chips to accumulate.
    • Users of rock crusher shall be aware of the location of first aid kits, fire exits, fire extinguishers, fire alarms, eye washes, deluge showers, emergency telephones and other safety related facilities.

JAW Opening ADJUSTMENTS

*MAKE SURE JAW CRUSHER IS DISCONNECTED FROM POWER SOURCE BEFORE DOING ANY SERVICING OR ADJUSTMENTS*

Adjusting Jaws allows you change the ways the Crusher Jaws perform for different rocks and output requirements.

Adjusting Dispensary Particle Size can be done by adjusting the HEX nut on the back of the crusher between the crusher and engine.

To DECREASE particle size: Turn hex nut clockwise. Be aware of centric bearing position when measuring jaw opening. Jaws should never run in contact with one another.

To INCREASE particle size: Turn hex nut counter clockwise. Be aware of centric bearing position when measuring jaw opening.


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JAW CRUSHER MOUNT EXAMPLES

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