6 pulverizers that are crushing it in the marketplace - canadian concrete expo
Concrete is a material that lasts a long time. The concrete in concrete structures often outlives the original use of the structure. That is why so many attachments have been created to the destruction of concrete, says Stuart Galloway, President, 20/20 Show Productions, the producer of Canadian Concrete Expo. Pulverizers use tremendous force and hard, sharp teeth to break concrete into smaller pieces.
The SP30 is designed to be a reliable and powerful tool for secondary demolition and recycling of concrete. It powerfully crushes reinforced concrete with its wider jaw, exceptional closing force and short cycle times provides excellent productivity in concrete reduction and reinforced steel separation, claims the company. These pulverizers feature a speed boosting system for fast cycle times, a bolt-on replaceable one-piece solid tooth system, steel cutting blades in the throat with four usable sides, and a heavy-duty cylinder cover.
With the newly improved tooth configuration utilizing a high-profile center tooth and lower profile teeth on both sides of the movable jaw, NPK concrete pulverizers can be used for both primary and secondary crushing operations. Abrasion resistant, high strength, alloy steel teeth provide decreased wear and increased durability. They easily crush through reinforced concrete and cut through light steel structures, which allows material to be separated and recycled, and simultaneously, permits easier handling of material. Competitive cylinder systems need larger cylinders to equal the force developed by the more compact NPK intensifier system, claims the company. In addition, the R models come with full 360-degree power rotation for maximum versatility and all A models now utilize a bolt-on replaceable tooth plate on both sides of the jaw.
As result of an advanced design and many years of experience in the demolition industry, Tramacs FP Series are marked by its technical and technological innovations. All units are composed of the best raw materials, which makes them structurally reliable. A continuous 360-degree hydraulic rotation improves versatility. Just one attachment can be used for primary demolition (such as building demolition) and for secondary demolition (such as recycling and separating fragmentation). The replaceable tips, fitted as standard on both jaws, further increase the performance, allowing the perfect separation of reinforcing rods from concrete.
This rugged attachment not only crushes concrete, but also cuts and removes rebar. This double act creates two recyclable products with ease. As standard, Lemac includes replaceable teeth and rebar cutters allowing easy and affordable maintenance. The Lemac Concrete Crusher uses the excavators bucket cylinder. The attachments offset pivot maximizes crushing force, claims the company, which allows for over sizing of main pivot pin and reduces any stress imposed on the stick. The main pivot features heat-treated pin, bearings, seals, and o-rings and the entire jaw structure is manufactured from quenched and tempered alloy steel 130,000-psi minimum yield, 360-440 BHN.
Concrete pulverizers for excavators are essential for speedy demolition, and the Kenco Concrete Pulverizer is an ideal tool for separating concrete from rebar. The force of the jaws crunches up the concrete and cleans it off the rebar, allowing for easy separation from the rest of the rubble. The attachment requires no hydraulics for operation. The excavators bucket cylinder actuates the movable front jaw and crushes material against the stationary back jaw.
Built for durable, long-term use, the Kraken Concrete Pulverizer is fully mechanical, made with Hardox wear points and requires no auxiliary hydraulics. Available for use with a coupler or direct pin-on, the Krakens three over four jaw configuration provides crushing strength that pushes the broken material through the jaws for efficient productivity. By using longer teeth in the centre, breaking force is maximized at initial crush by concentrating pressure across fewer points. After first penetration, the secondary jaw teeth crumble the concrete into manageable pieces. Upgrade with the optional rebar shear, effectively slicing rebar while crushing material. Made with high grade steel, the bolt-on blades are easily replaced.
laboratory sample pulverizers
The use of a laboratory pulverizer is a must before sending any soil or test sample for XRF, titration, ICP or other assay method; you need to pulverize or fine grind a dry representative portion of the rock sample using what is commonly called in the laboratory language of sample preparation a laboratory pulverizer. Any of these term are part of the jargon to describe the pulverizing machine used to bring the particle size of your test sample down to low microns. Finer is better, and under 270 mesh (53 um) is generally fine enough.
The basic parts of this vibratory type sample pulverising machine are: steel grinding bowl, ring and puck. The ring and puck rotates inside the approximately 8 diameter cage at a speed around 400 RPM or fast enough to crush and pulverize rocks of up to down to 400 mesh.
These ring grinders also come in single or multiple stations or bowls. The most common being 1 bowl but as production or sample contamination reduction might require I saw as much a 7 bowls on one machine. The size/capacity of the bowl and its ring & puck also varies depending on how much you want to grind and pulveriser at the same time.
The D. F. C. Laboratory Pulverizer is an excellent unit for reducing primary laboratory crusher or roll products to a fineness up to 120 mesh in preparation for treatment tests. This pulverizer is ideal for ore dressing, assay, chemical and industrial laboratories.
The capacities of this unit will vary with different materials and conditions, but a medium quartz ore can be reduced from mesh to 100 mesh at the rate of 1.4 pounds per minute. The degree of fineness of product obtained can be easily adjusted by turning a handwheel at the rear of the machine. A lock nut holds adjustments made, thus assuring a uniform product size. Easy and thorough cleaning is permitted by a hinged cover which drops back, exposing the grinding chamber which is lined with baked enamel for additional certainty in cleaning to prevent salting of samples.
Design of the D. F. C. Laboratory Pulverizer combines simplicity with the proven advantages of planetary motion which eliminates all possibility of grooving the rotating discs. This unit is driven directly without the use of a gear train. All bearings and gears run in a bath of oil.
Drive may be by tight and loose pulleys for flat belt or a motor may be mounted on the pulverizer frame and equipped with an enclosed V-belt drive. Correct belt tension is secured by raising or lowering the motor base with an adjusting bolt and nut.
The McCool Laboratory Pulverizer is an economical, simple, durable, and amazingly rapid and efficient disc type grinder. It is designed for grinding virtually any material and will produce a fine mesh sample in one operation. This unitis particularly adapted for use by assay offices and metallurgical, chemical, and industrial laboratories.
This pulverizer is the only self-contained laboratory grinder which has both a vertical and a horizontal planetary movement. Thus the rotating disc always has the proper angular curvature with relation to the stationary disc. This feature is particularly desirable due to the greatly lengthened life of wearing parts and the unusual uniformity of the final product.
The revolving disc is attached by a ball-and-socket joint with spring tension. This enables the disc to automatically align itself with the stationary disc. The constant contact of the two discs tends to perfect the crushing efficiency as evidenced by uniformity of product and high capacity of this pulverizing unit.
The main shaft is hollow. Located eccentrically within it is the disc driving shaft which, through the range of gearing, has a much greater speed than the pulley speed. The resultant high speed of the rotary disc accounts in a large measure for the exceptional capacity and fineness of product of the McCool Laboratory Pulverizer.
A self-locking device holds the hinged grinding chamber in place and affords easy and quick access to the chamber for removing ground samples and cleaning. The adjustment of the grinding discs to each other is automatic and positive and various settings can be made while the machine is in operation.
The McCool Laboratory Pulverizer is available incorporated into a crusher-pulverizer unit on a common base with a single driving motor, as shown at left. The crusher unit is the 2 x 3 (Type I) Forced Feed Laboratory Jaw Crusher, which is of the high capacity type with a one-piece cast alloy iron frame and reversible manganese steel jaw and cheek plates. This crusher-pulverizer unit is a compact, efficient, portable combination, ideal for use in any laboratory.
The McCool Laboratory Pulverizer (Gearless Type), as illustrated at left, has been designed to give 1/3 more capacity with 1/3 less horsepower consumption than the previous models. It is an ideal unit for grinding virtually any material and for pulverizing to any mesh in one easy operation.
Although using the time proved gyratory motion of the original McCool, this unit has been designed to eliminate all gears and oil leakage. By the elimination of all unnecessary parts it is made quiet, smooth running, and practically vibrationless and for this reason requires only 1/3 the H.P. of the previous models. It is a self-contained unit with a micrometer adjustment near the grinding chamber lock and handy to the operator for changing the size of the product. The motor, the shaft assembly and the housing move together as a sealed unit in dovetail slides toward the grinding chamber to compensate for disc wear. With this method the shaft is not drawn in or out of its bearings and exposure to dust and wear is avoided. The 9 diameter discs rotate at 800 R.P.M. and at the same time travel around their own axis at 200 R.P.M. inside an eccentric outer sleeve.
concrete pulverizer - ami attachments
Standing strong in the concrete jungle is the AMI Kraken Concrete Pulverizer the fast and simple way to crush concrete. Built for durable, long-term use, the Kraken Concrete Pulverizer is fully mechanical, made with Hardox wear points and requires no auxiliary hydraulics. Available for use with a coupler or direct pin-on, the Kraken Concrete Pulverizer is ready to claim new ground. Optional rebar shear available.
By using longer teeth in the centre, breaking force is maximized at initial crush by concentrating pressure across fewer points. After first penetration, the secondary jaw teeth crumble the concrete into manageable pieces. Made from Hardox 500 steel, the replaceable jaw teeth have excellent hardwearing quality and are welded into place.
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