Okaloosa County BOCC — March 4, 2014 — Horizontal Grinder PW 15-14 — reading text

from beneath the hammermill shall be transferred to a stacking conveyor at the rear of the unit by a 48" wide Yes No (minimum) wide, horizontal, aggregate grade belt conveyor. 2. Stacking Conveyor: Describe the type of discharge conveyor system used on your equipment. The county reserves the right to heavily weight this when Yes No making a recommendation to purchase. Provide a descriptive brochure (if available) showing the system. 3. Magnetic End Pulley: Pulley shall be 14" diameter x 42" long. Belts driven from the bottom pulley will not be considered. The magnetic field must Yes No produce a rating of not less than 1.400 gauss at the surface and be mounted to the drum shaft with B-Loc Style mounting system. Hubs welded to the shaft are unacceptable. Page 4  Hamm erm ill 1. Hammermill: 42" diameter x 68" wide mill. Yes No Holder & Inserts: There shall be (12) (minimum) thick balance 4140 forged steel fixed teeth insert holders equipped with (12) 3-3/4" Yes No forged wide double-edged replaceable carbide teeth inserts and (18) rakers. (, Hammermili RPM: Minimum of 1000 RPM. - 'ks Yes No 4. Hammermlli Drive: (10) 8V2800 Belts. Yes No 5. Hammerhill Shaft: 9" diameter, 4340 HR-Q&T-SR-UT steel shaft with 5-3/16". Yes No ) Cutting Anvil: (1) 2-1/2" thick, two sided, cutting anvil. Anvil shall be _____ removable using bolts from outside of machine. C- 112. Yes No C,-. J Sizing Screens 1. Screens: One set of (2) 6" hexagon, AR450 steel screens shall be provided. Screens must be easily interchangeable without having to enter grinding Yes No chamber or use bolts to remove. 2. Screen Area: Minimum of 5,661 square inches. A/c' - Yes No Engine & Hammermill Protection System 1. Protection System: List any system available used to protect the engine, clutch and hammermili. Warranty 1. Horizontal Grinder: One (1) year unlimited hours on the horizontal grinder No assembly, trailer and hammermill assembly according to the terms Yes No specified in the Manufacturer's Warranty Policy. 2. Clutch: Limited (1) year factory warrant. Yes No 3. Engine: Caterpillar Base Warranty is One (1) year or (2) two years/3,000 hours and extended service coverage to three (3) years on main Yes No components. Gock - 4. Extended Warranty: List the c?dt and terms of any available extended - warranty. ''' " Yes No Page 5 10-30-09 BREAK AWAY BEARING MOUNT Your grinder is equipped with a patented safety system design called a "Break Away Bearing Mount" to minimize any potential damage that may occur when large contaminants or steel materials wind up in the product being ground. When the hammermill encounters a heavy contaminant, the break away system has the ability to relive the shock load created when the hammer tip contacts the contaminant at the cutting edge or screen surface. This impact or shock energy happens so quickly due to the high tip speed of the mill that it is very difficult to lessen the amount of energy created and still have a shear point that will stand up to normal grinding demands. The mass of the rotating hammermill obviously has a high level of stored energy, so at the point of impact, something has to give. Once the hammer contacts the contaminant, the downward force of energy is then re-directed in an upward and back direction. The best possible way to relieve this force is to allow the mill to move away in that direction. Other types of designs are less effective due to the nature of the design and their ability to move out of the way quickly enough to relieve the energy. Typically these systems either break away too easily and end up being welded in solid or simply don't break away at all. Our system provides an effective weak link (relief point) to prevent damage to major components when contaminates are encountered. The breakaway function .L BEARING is accomplished by the way the mill bearings are BEARING SHEAR PAD mounted to the main structure of the 4l framework. Each of the I ++ Eh rt?i rfi bearing housings are bolted down to a FRAME breakaway mounting BEARING LIFT BOLTS plate by all four or the EAR BOLT standard mounting bolts. The four cap bolts are drilled through creating an 8-point solid mount to the block. The block is then secured to the framework of the machine by smaller shear bolts, placed at specific locations further away from the axis of the mill. The bolts are designed strong enough to handle all the necessary security and integrity to grind any type of organic material that is the intended use of the machine yet light enough to shear and break away when heavy contaminates are encountered. As we all know grinding isn't a perfect world and there is no such thing as a clean wood pile. Diamond Z grinders are designed with enough mass and structural integrity to process the majority of contaminates typically found in a wood pile with out any substantial damage minimizing down time. When a larger piece of steel does make its way between the hammer and the cutting edge, the shear bolts have the ability to shear or break allowing the mill to move away from the impact point greatly reducing any amount of damage that would normally occur in standard designs. This break away design has been very effective and has been tested in our model 1600 Solid waste grinder over the last nine years. This application is by far the most destructive as it is standard operating practice to hit large foreign objects on a consistent basis with little or no down time. Procedure for replacing mill after a shearing impact has occurred: 1) Position the feed roller and mill cover into the maintenance position. (Refer to your manual and follow all lock out tag out instructions) 2) Inspect the mill area for any loose or damaged tips; wear plates, mill rods and hammers. Replace if necessary. (Make sure after all repairs are made that your hammer mill is in balance) 3) Inspect your bearing mount blocks to see if any shear bolts have been displaced. If any of the shear bolts are loose remove them all and raise the mill bearings utilizing the bearing lift bolts to insure the mounting surfaces are clean. 4) Lower bearings back down into place and inspect and re-torque all bolts making sure to use new shear bolts. 5) Rotate hammer mill by hand to insure no contact is made with any surrounding surfaces. 6) Check alignment mark on driven sheave. Check and re-torque bushing bolts on drive and driven sheaves. 7) Once everything has been replaced and tightened down engage hammer mill and bring mill up to high rpm. 8) Once the mill is rotating at high rpm check for vibration and listen for any differences in sound checking for higher then normal temperatures using a heat gun. After a high impact shock load is experienced in you hammer mill you should; periodically check for high bearing temps and any other abnormal operational issue. Typically there will be no damage to the rollers or race of the bearings but it is possible. Always follow all safety procedures when performing any repairs to your machine.  ADDENDUM # 1 Hammermlll 1. Hammermlll: 42" diameter x 68" 42" diameter by 66" wide mill. Yes No 2. Holder & Inserts: There shall be (12) (minimum) thick balance 4140 forged steel fixed teeth insert holders equipped with (12) 3-3/4" Yes No forged wide double-edged replaceable carbide teeth inserts and (18) rakers. 3. Hammermill RPM: Minimum of 1000 RPM. Yes No 4. Hammermill Drive: (10) 8V2800 Belts. Yes No 5. Hammerhill Shaft: 9" diameter, 4340 HR-Q&T-SR-UT steel shaft with 5-3/16'. _____ Yes No 6. Cutting Anvil: (1) 2-1/2" thick, two sided, cutting anvil. Anvil shall be removable using bolts from outside of machine. Yes No Sizing Screens 1. Screens: One set of (2) 5" hexagon, AR450 steel screens shall be provided. Screens must be easily interchangeable without having to enter grinding Yes No chamber or use bolts to remove. 2. Screen Area: Minimum of 5,661 square inches. Yes No Engine & Hommermill Protection System 1. Protection System: List any system available used to protect the engine, clutch and hammermill. Warranty 1. Horizontal Grinder: One (1) year unlimited hours on the horizontal grinder assembly, trailer and hammermill assembly according to the terms Yes No specified in the Manufacturer's Warranty Policy. 1. Clutch: Limited (1) year factory warrant. Yes No 2. Engine: Caterpillar Base Warranty is One (1) year or (2) two years/3,000 hours and extended service coverage to three (3) years on main Yes No components. 3. Extended Warranty: List the coast and terms of any available extended warranty. Yes No Service & Training Manuals: Two complete sets of Operators & Parts manuals will be provided. (No payment will be made until manuals are delivered.) Yes No 2. Training: Upon delivery a representative of the manufacturer or local dealer will conduct a 1w, jj. day training session on the operation and Yes No maintenance of the horizontal grinder. Bidder 1. Bidder Info: Any and all exceptions to the specifications included in this request for bids must be fully detailed and explained on a separate sheet