Technical Specifications. T-Class Two Bearing Vibrating Screens

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1 Technical Specifications T-Class Two Bearing Vibrating Screens

2 Thank you for your interest in the Tycan T-Class. General Information W.S. Tyler offers the T-Class vibrating screen with field proven features that make it a versatile performer. It is designed to be a rugged dependable vibrating screen for use in the screening of a wide variety of materials. The circle throw motion of the T-Class Series is developed by a unbalanced concentric shaft assembly, which is supported by two high performance, double spherical roller screen bearings. The circle throw action is very effective in moving coarse material to the top of the bed so that the fines and near mesh particles may pass through the media openings. The T-Class Series provides fast, accurate sizing of virtually any material ranging in cut size from 0.15 in to 9.76 in. The T-Class two bearing, circle throw vibrating screen is easy to maintain because of its readily replaceable parts and solid HUCK bolted construction. For maximum versatility, the T-Class model offers one to four and a half screen decks. These decks are available in widths from two feet to eight feet and in lengths up to twenty-four feet. The T-Class can be designed in single and double shaft configurations. The double shaft utilizes a timing belt eliminating the need for high priced timing gears. Cut Size vs. Stroke (T-Class) Amplitude r [mm] 10,00 9,00 8,00 7,00 6,00 5,00 4,00 3,00 2,00 1,00 0,00 0,10 1,00 10,00 100,00 Cut Size d [mm]

3 T-Class 4 Width (ft) Length (ft) Figure 1 T-Class Size Availability Design Tools The T-Class is modeled in 3D environment prior to production. Using a 3D CAD system, the engineer produces a geometrically accurate, unambiguous, digital product model that is utilized throughout product development, manufacturing and assembly. Interacting with 3D model speeds up design, encourages innovation and identifies errors. It enables engineers to visually evaluate interference between parts, complicated geometric features, required tolerances, mechanism motion and assembly structure as the product evolves. Further, the virtual prototype enables concurrent collaboration between engineering, manufacturing and customers.

4 Figure 2 3-D CAD model showing Tycan T-Class Features (Application Dependent)

5 Features Drive System: Circle throw developed by counterbalanced shaft assembly Drive Transmission: V-Belts and pulleys Drive Unit: Electric Motor Width: 3 to 8 feet Length: Up to 24 feet Decks: Up to 4 ½ Inclination: 10 to 25 degrees Operating Speeds: 750 to 1050 RPM STANDARD SPEEDS STANDARD THROW o 750 RPM...1/2 in. circle o 860 RPM...3/8 in. circle o 1050 RPM...1/4 in. circle Alloy steel shaft ground to precision tolerances Heavy-duty, high performance, self-aligning spherical roller screen bearings with inner races fitted to the shaft and outer races mounted in the cast ductile iron bearing housing Loose-on-the-shaft bearings provide easy installation, replacement, and equal load distribution Labyrinth seals prevent grit or foreign matter from reaching the bearings Steel counterweighted wheels with calculated weights for proper balancing Seamless steel tube shaft casing with cast iron tube heads to assure solid construction and protection for shaft assembly HUCK -Bolted Screen Body design for extra strength and rigidity under all working conditions Stover nuts used in shaft assembly and screen section tensioning for strong safe connections and easy maintenance Unique design angle box tension system 3-bend tension rails to engage hooked edges of the side tensioned screen sections Shaft driven from right or left side Teflon coated inner bearing race to eliminate end shaft greasing Single point (per housing) grease lubrication minimizing grease points Screen support frames are supplied with replaceable rubber buffer strips which contribute to longer screen life (available in standard rubber and silicone rubber) Cambered deck construction permitting proper screen tensioning

6 Wheel guards and drive guards provide protection from rotating parts Side Plate high strength carbon steel (ASTM A-36) high rigidity due to formed 90 bend at top and 45 bend at bottom of side plate body brackets serve as stiffeners in the mounting region of the screen tying in the side plate and screen panels entire assembly is integrated by the use of highly durable HUCK TM bolt construction for machines with larger bearing sizes, the area around the shaft assembly is reinforced with a reinforcing plate or ring tying together the side plate, screen panel and shaft assembly Figure 3 Side Plate and Reinforcing Members

7 Screen Panel one piece panel design HUCK TM -Bolted screen body fastening for extra strength and rigidity Formed side rail (90 top and 45 bottom bends) rail options available to accommodate suitable media o flat deck e.g. perforated plate or rubber deck o rails for any urethane style panels (pin and sleeve arrangement or to accept grooved media) o side tensioned media Finger Deck screen panel to accommodate Finger Deck media Figure 4 Screen Panel Figure 5 Finger Deck Screen Panel

8 Feed Box and Back Plate high strength carbon steel (ASTM A-36) reinforced with gussets interchangeable feed box and back plate (in most cases) replaceable feed box liners available in QT400, urethane, rubber or high chromium alloy back plate increases the rigidity of the feed end of the machine Figure 6 Feed Box Figure 7 Back Plate

9 Drive Concentric, unbalanced, free swing shaft assembly Circle throw motion developed by a counterbalanced shaft assembly Calculated balance weights Supported by two high performance, double spherical roller screen bearings PTFE Explorer Bearings PTFE coated bore helps minimize fretting corrosion between the bore of the bearing and the shaft caused by the necessary loose fit design Single point greasing per bearing minimizes grease points Labyrinth seals prevent grit or foreign matter from reaching the bearings while preventing leakage of grease Seamless steel tube housing with cast iron tube heads supplies reinforcement surrounding shaft area and provides lateral stability as well as shaft protection Permanently installed tube housing allows for bearing changes without seal breakage via ears Timing belt for double shaft configuration Figure 8 Double Shaft Configuration with Timing Belt

10 Figure 9 T-Class Shaft Assembly Figure 10 T-Class Shaft Assembly (Exploded)

11 Mounting Options The T-Class screen can be designed with one of four mounting options: 1. Direct support with coil springs used in conjunction with stabilizing units. The stabilizing units provide lateral stability and control machine movement limiting critical frequencies during start up and shut down. Stabilizing Units Figure 11 Coil Springs and Stabilizing Unit

12 2. Direct support with Ty-Rider mounts (standard on machines smaller than 5 wide). Figure 12 Ty-Rider Mounted T-Class Ty-Rider mounts are offered as an alternative to conventional spring mounting systems. Ty-Rider mounts are based upon the principle of four elastomeric elements inside the base of each oscillating unit. The elements transmit the oscillations of a system, while simultaneously damping vibration, shock, and noise. Due to the unique design, neither shear nor bending stresses occur at the support points, assuring long life. Figure 13 Double Ty-Rider Configuration

13 The key features of Ty-Rider mounts that are superior to coil springs are: Extended life Lateral stability Support tensile, compressive and shear stresses Reduced noise level Prevents excessive and uncontrolled oscillation through start-up and shut down 3. Cable suspension Figure 14 Cable Suspension 4. Combination of floor mounting and cable suspension.

14 Vibration Analysis Inspection Every T-Class vibrating machine is backed by years of engineering experience. Prior to shipment each machine is carefully examined and operated over a prolonged period assuring correct balance, satisfactory bearing operating temperatures, smooth operation, acceptable noise levels, and quality workmanship. Each machine is evaluated using a computer vibration analysis tool to find any dynamic irregularities in a vibrating screen. This information makes it possible to view in the monitor the orbit points, peak to peak, median acceleration, displacements, frequency (RPM) and FFT analysis. The combination of speed and stroke on a vibrating screen results in acceleration forces. Operating a screen outside of its proper accelerations reduces screening performance and poses risks to the mechanical integrity of the machine. Measuring the mechanical performance of a vibrating screen builds the basis, minimizing these risks, ensuring proper operation. The healthy screen will display a stable waveform and close to zero acceleration in the side axis. Figure 15 Vibration Analysis Data Acquisition Horizontal and vertical vibrations analyzed together allow orbit plots to represent the 2D shape of the screen motion (Figure 19). This shape also holds valuable information about the condition of the screen. The integrated FFT-analysis separates and analyzes frequency patterns that indicate mechanical problems.

15 Figure 16 Vibration Analysis Orbit Plots A software suite processes the information resulting in a report featuring detail information for each measuring point and an evaluation for the entire machine. The summary brief points to modifications that are necessary to achieve optimum performance.

16 Warranty W.S. TYLER CANADA LTD. hereinafter designated the Company warrants to the Purchaser / End-user that the equipment will be free from defects in material, design and workmanship, provided that the equipment is commissioned by a certified TYCAN technician, for a period of eighteen (18) months from the date of shipment or twelve (12) months from installation, or six-thousand (6,000) operation hours from installation whichever is first provided the Purchaser or user operates the equipment according to and in accordance with the conditions of operation specified herein and in accordance with operating manuals furnished. Claims for wear and tear are excluded from the company s warranty. If during the warranty period, any part of the equipment is found to be defective in material or workmanship, the Company will furnish a replacement part FCA ST. CATHARINES. Such parts claimed to be defective shall be returned to the Company's manufacturing plant, transportation prepaid, for inspection by the company to determine to its satisfaction that said Part or Parts are defective, or, at its option, repair such defective part in place, provided the Purchaser or user operates the equipment according to generally approved industry practices and in accordance with the conditions of operation specified herein and in accordance with operating manuals furnished if any, and further provided that the Purchaser notifies the Company in writing as soon as any defects occur. The performance of a screening machine is subject to so many variables in the user's plant and are beyond the control of the seller, that there can be no warranty of any particular performance. THE EXPRESS WARRANTIES, GUARANTEES AND REMEDIES SET FORTH HEREIN ARE EXCLUSIVE AND NO OTHER WARRANTIES, GUARANTEES OR REMEDIES OF ANY KIND, WHETHER STATUTORY, WRITTEN, ORAL, EXPRESSED OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTIABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY. The liability of the Company to the Purchaser arising out of the manufacture, sale, delivery, use or resale of the equipment whether based on warranty contract negligence, tort, strict liability, or otherwise, and whether for direct, indirect, special, consequential, exemplary, punitive or other damage, shall not exceed the cost of correcting defects in the equipment as herein provided. Upon the expiration of the warranty period, all such liability shall terminate. The Company shall not be responsible for work done, equipment or parts furnished or repairs made by others, or for loss, damages, or expense arising from such work, equipment, parts or repairs. The Company shall not be liable to the Purchaser or User for loss of anticipated profits, loss by reason of plant shutdown, non-operation or increased expense of operation of

17 the other equipment or other consequential loss or damage of any nature arising from any cause whatsoever by reason of the manufacturer, sale, delivery, use or resale of the equipment covered by this contract. No person, agent or dealer is authorized to give any warranty, other than the one herein expressed, on the Company's behalf or to assume for it any liability pertaining to such Equipment. THIS WARRANTY IS NULL AND VOID IF OTHER THAN GENUINE TYCAN R PARTS ARE USED