Attachment 2 - Salient Characteristics.pdf

Attachment 2 – Salient Characteristics List

FA460824QC109

410 Gallon Sealing Unit Salient Characteristics

1.0 Purpose:

1.1 The crack sealing unit (melter/applicator) must be able to safely melt, agitate, circulate, and apply all grades of asphalt rubber sealants, specification joint sealants, jet fuel resistant sealants and fiber modified asphalt sealants. The machine must be capable of starting at ambient temperature and bringing material to pouring temperature in less than one hour. The unit must have continuous sealant agitation with internal recirculation of sealant (not hose recirculation) to eliminate temperature stratification of sealant being applied. Complete operation manual, parts lists, and training video must be furnished with the unit. A factory-trained representative will be available for initial startup and training.

1.2 The equipment must be new, current year production and meet the needs of this specification without modification. The model must be currently advertised, have been in production for a minimum of two years and have a working volume of not less than called for in this specification.

Hybrid, one-off or prototype equipment is unacceptable.

1.3 These specifications are not intended to be restrictive but are meant to describe the kind and size of unit desired to be purchased in detail. The specifications submitted must be complete and of sufficient detail to cover all items in identified in the salient characteristics. Any item not covered will be deemed as not meeting specifications.

2.0 Basic Machine Requirements:

2.1 Double jacketed boiler type material tank design.

2.2 Trailer mounted and rated for highway class use.

2.3 Diesel powered and diesel heated.

2.4 Electric heated sealing hose equipped only.

2.5 Minimum working capacity of 410 gallons.

2.6 Dual insulated loading doors.

2.7 LED sealed lighting including stop/turn and clearance lights.

3.0 Melting System Minimum Requirements:

3.1 The material tank must be of double boiler design and have a minimum working volume of four hundred and ten (410) gallons. Working volume can be described as the maximum usable amount of sealant that can be contained in the material tank at one time and pumped out of the hose.

3.2 The material and oil tanks must be constructed of no less than 7-gauge (.179”) steel. The oil tank must hold a maximum of forty-two (42)gallons of heat transfer oil (HTO) at ambient temperature. The oil reservoir will be surrounded by a ten (10)-gauge (.134”) air reservoir that will be filled with hot burner gases heating both the bottom and sides of the oil tank for best heat transfer.

3.3 Tank must be insulated on top, sides, and bottom with a min. 1.5” ceramic or FBX insulation.

3.4 Full sweep vertical direct driven reversible agitator design. Agitator shaft must include auger flighting for best mixing.

3.5 Minimum two (2) 15 x 26 inch, insulated/angled loading door will be curbside and of “splash-free” design.

3.6 For safety, material loading height will be no more than 54 inches for proper lifting ergonomics.

3.7 For safety, unit must include a vented HTO expansion tank. Sealed expansion tanks will be considered a fatal deviation.

3.8 Diesel burner maximum of four hundred thousand British Thermal Unit (400,000 BTU) for best fuel efficiency and fastest heat-up.

3.9 Unit must have dual pumps, dual wands and 2 recirculation ports located on the rear of the machine.

3.10 The material tank will have a minimum capacity of 410 US gallons.

4.0 Trailer Minimum Requirements:

4.1 The melting unit will be trailer mounted and capable of being towed at a minimum of 25 (miles per hour)

MPH safely when fully loaded. The frame shall include minimum flat horizontal surface steel fenders to facilitate handling and loading of material blocks. All lighting will be LED.

4.2 The frame is to be constructed of minimums six inches by two inches by three-sixteenth of an inch (6”x 2”x 3/16”) gusseted steel tube for safety and strength.

4.3 A two to two and a half (2-1/2”) towing ring that is adjustable in height from fifteen to thirty inches 15” to 30”) high will be provided.

4.4 Minimum twelve (12)-gauge flat horizontal surface steel fenders to facilitate handling and loading of material blocks.

4.5 A swing-away weight appropriate adjustable screw jack must be provided.

4.6 To ensure towing mobility in both forward and reverse directions, the melter shall have a dual Torsion axle system and be rated at a GAWR (Gross Axle Weight Rating) of ten thousand pounds (10,000 lbs)

4.7 Electric brakes, emergency breakaway switch, radial tires, and two 3/8” x 4-foot-long safety chains with slip hooks will be included.

4.8 Oval LED stop, tail, and turn lights will be included. Clearance lighting will also be LED.

4.9 The lighting harness will be woven loom with weatherproof connectors at all lights. The trailer harness shall use a junction box at the front to allow easy changeover to different types of towing vehicle plugs. A seven (7) pin flat RV round plug will be included.

5.0 Pumping and Delivery System Minimum Requirements:

5.1 A positive displacement pump will provide material flow for sealing and recirculation. The material pump and all related plumbing must be contained within a heated chamber. External oil jacketed pumps are not acceptable. The re-circulation will be confined safely within the interior of the machine (Internal Machine Recirculation). Hose recirculation is not an acceptable alternative.

Submerged pumping systems are unacceptable due to their reduction of sealant working volume, their inability to recirculate sealant and their excessive maintenance down time.

5.2 The pump shall be direct coupled, driven hydraulically, and run in either direction to permit cleaning of plumbing system.

5.3 A minimum twenty (20) gallons per minute (GPM) is required output. Pump speed will variable.

5.4 A maximum of twenty-five 25 revolutions per minute (rpm) is allowed to achieve maximum pump output to provide long pump life.

5.5 When sealing valve is closed, sealant must be recirculated back to machine to provide fast recovery and heat up time.

5.6 Sealing hose will be electrically heated. For safety, only floating ground design systems will be acceptable. Due to weight, length and flexibility considerations, Oil or DC heated hoses will not be considered. The hose will be a minimum of threw quarter of an inch ( 3/4”) inner diameter (ID) and no less than twenty (20) feet long.

5.7 Hose boom(s) will be located at the rear center or rear sides of the heating chamber. Boom height must be high enough as to allow a six feet two inches (6’ 2”) operator to walk under without risk of personal injury. The boom must be supported by heavy duty collar and Oilite type maintenance free bushing.

5.8 The wands will utilize a ball valve attached at the end of the wand to eliminate dripping when valve is shut off. Rubber tips are not an acceptable substitution. Should the wand be accidently dropped, all flow and line pressure must cease.

5.9 A two and a half inches (2.5") swivel disk will be included.

6.0 Temperature and Flow Control Minimum Requirements:

6.1 For sealant placement temperature quality, the material temperature will be measured outside of the sealant tank and before the placement hose. The digital control system must be able to operate in manual or automatic mode. Sealant flow will be digitally controlled.

6.2 The display must have adjustable digital controllers with readout for oil, material, and heated hose temperatures. Control must have intervals no greater than 1 degree F and continuously monitor thermocouples. Controllers must be stowed in a watertight operator’s box on rear curbside of machine.

6.3 The Control panel will contain (3) LED status indicators for pump, agitator, and hose. When all three indicators are green, operator can begin to work.

6.4 Digital controllers must display error code and shut burner down should a thermocouple failure occur.

6.5 The control system must be able to operate in manual or automatic mode. When in “Auto”, the system will control agitation and pump start up by temperature automatically. Control is to be placed on outer control box with operator selection for Run / Clean Out / Cool Down / Off

6.6 Pump forward/reverse and agitator forward/reverse will be electrically controlled from rotary switch on the control station door panel without having to open the weatherproof box. A clear cover will allow viewing of status LED’s and digital temperature readout without opening box.

6.7 A single hydraulic manifold system shall be provided with cartridge valves, which permit maintenance without hose removal. Pressure relief valves included for protection of motors. Nine (9) preset positions are available to adjust sealant flow.

6.8 Additional status LED indicators shall provide burner, pump, and Hose heating status.

6.9 Additional analog gauges shall be included for agitator and material pump pressure and backup material temperature.

7.0 Engine, Burner and Hydraulics Minimum Requirements:

7.1 The unit will be equipped diesel engine with spin-on type oil and fuel filters. It will be joined to the frame with rubber engine mounts to prevent vibration transfer. The management system will be located near the engine for ease of operation and maintenance. A self-igniting diesel fired burner will be included.

7.2 The unit will be equipped with a three (3-) cylinder direct injected, twenty horsepower (20hp), tier four (4) final diesel engine. The engine will have spin-on type oil and fuel filters.

7.3 The engine will be protected by a digital engine management system including integrated hour meter and burner failure indicator lamp.

7.4 Auto shutdown protection will be provided for alternator, oil pressure and coolant temperature.

7.5 The exhaust will exit through a noise reduced cowl muffler.

7.6 The unit will include a minimum thirty-three (33)-gallon diesel fuel tank. The tank will incorporate a fuel fill cap with integrated fuel gauge. For safety, hose type sight gauges are strictly forbidden.

7.7 The system will include separate dual spin-on type fuel filters with ball valve shut offs to simplify filter replacement and supply fuel to the burner and engine. Filters will be located near the fuel tank for ease of maintenance.

7.8 The hydraulic system shall have a minimum 33-gallon reservoir, shall be equipped with a suction strainer and a return filter and a sight level with integrated temperature gauge.

7.9 One twelve (12)-volt four hundred thousand 400,000 BTU diesel burner will fire into an angled ceramic lined combustion chamber. The burner will have a self-contained electronic spark igniter and proof of flame protection. To minimize downtime the burner must be self-priming and be equipped with a fuel pressure gauge.

8.0 Paint and Safety Decals Minimum Requirements:

8.1 The unit shall be painted using safety green and black. It will be equipped with required safety decals and signage.

9.0 Warranty Minimum Requirements:

9.1 The manufacturer shall warranty the equipment for a period of one year. Engine must be covered for major components for a period of two (2) years or two thousand (2000) hours.

10.0 Required Options:

10.1 Insulated noise reducing locking engine cover.

10.2 Agitator stop (stops agitator when loading door opens).

10.3 Single strobe, mounted on mast.

10.4 LED directional arrow stick, mounted with controller.

10.5 Toolbox, mounted.

10.6 Ten pounds (10 lbs). fire extinguisher, mounted with bracket.

11.0 Dual Pump, Dual Heated Hose:

13.1 The unit will be equipped with dual two (2), twenty 20 GPM external material pumps, dual two (2) inlets from material tank. These pumps must have the ability to independently adjust the speed by independent hydraulic flow control valves. They must also be able to turn off independently so the user can decide which side to use. The material pump hydraulic motors must be on independent hydraulic circuits to limit any kind of surge when one system has been activated.

This hydraulic system must be equipped with a hydraulic cooler capable of keeping the hydraulic fluid at a temperature between 140° and 190° F.

10.7 Operator horn, audible communication system.

10.8 Spare tire, mounted on frame.

10.9 Lightweight aluminum sealing wand, four feet (4') with heated hose in lieu of standard wand and heated hose.

10.10 Powered Conveyor Assembly with doghouse on curb side loading door. Power conveyor to have control for forward and reverse at front of conveyor where operator loads as well as on pendant from ground level. The powered conveyor assembly will include a 26" hitch extension.