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Three and One Half Yard Capacity:
This specification is for providing one (1) new model, portable slide in or permanent mount electric heated, auger dispensing asphalt patch box such as "Patch King" model PK35HSD or approved equal, which is intended to be mounted in/on the bed of a five/six yard dump truck. 

DIMENSIONS(approximate):
Must fit in a dump bed which measures 96" in length (120" with Tack Tank) with the tail gate removed and 84" in width 6" above the floor.

OVERALL LENGTH:
96 inches 

OVERALL WIDTH:
48 inches at bottom; 84 inches at top 

HEIGHT:
76 inches, doors IN OPEN POSITION;
54" doors IN CLOSED POSITION.

TOP LOADING DOORS:
shall have two (2) hydraulic operated, hinged and insulated top loading doors approximately 96" x 30" 

CAPACITY:
(3.5) cubic yards (approx 5.25 tons) asphalt maximum. 

WEIGHT:
Hot asphalt box shall have a minimum weight of 3400 pounds when empty.

COLOR:
Standard factory color is black. Other colors available on request. 

FUNCTION:
The Patch-Box shall be capable of keeping 3.5 yards of hot mix at working temperature for a ten (10) hour period by use of the built in electric heating system. It shall also have the ability to preheat the box by either manually turning the heat on or by means of a time clock to raise the temperature prior to loading the box with hot or cold mix. (Time clock is an option) 

HEATING:
Shall be electric of the Lo-Density type, which does not exceed one (1) watt per square inch of heated surface on the box's sides and both ends.

ELECTRIC HEATERS:
Shall be 10kW, 240V 1 or 3 phase or 480V 3 phase. There shall be a minimum of 10 heating elements running the length and width of the box, evenly separated to heat all surfaces equally.

Heaters shall be open coil design featuring patented "Coil Lock" high temperature insulators supporting 80/20 grade nickel/chromium resistance wire of 20 gauge or heavier. Heaters shall be sheathed in 2" minimum OD. Tubing with a 14-gauge minimum wall thickness. The heaters shall be capable of maintaining a uniform temperature in a range from 50 degrees to 350 degrees Fahrenheit. HEATING ELEMENT SHALL BE REMOVABLE WITHOUT REMOVING THE INSULATION.

CONTROL PANEL:
The control panel shall be UL-LISTED and built in a facility subscribing to UL's listing and recognition services for industrial control equipment, UL 508. The panel will carry the UL label for "Enclosed Industrial Equipment". Panel construction shall be a NEMA type IV Enclosure rain-tite and dust-tite and shall be U.L. listed and approved with industrial type controlling thermostat, contactors and fusing. 

DISCHARGE AUGER:
Shall operate hydraulically from controls at the back of the box. Auger speed shall be variable. Auger shall be reversible. 

SELECTOR SWITCH:
Shall have a Hi-Low heat selector switch to provide heat for full or partial loads. This switch shall be mounted in the control panel. It shall be capable of providing energy separately to the lower half of the box (LO) or the entire box (HI).

ANTI BRIDGING DEVICE:
Hydraulically driven and controllable from the rear of the box. Shall be capable of breaking up any bridging of asphalt material over the auger.

PLUG CONNECTORS AND CABLES:
Electric plug connectors and cable shall be power-tite, pin and sleeve type receptacle and plug with ground. Plug shall be rain- tite, and weather-tite with 25 ft. cable 90 degree centigrade type S.O. heavy duty of appropriate volt braided wire, with all to be U.L. approved. 

BOX CONSTRUCTION:
Box shall be constructed of steel plate electrically welded and reinforced at all juncture points.

SIDE-WALLS:
The sloping side-walls and bottom shall be constructed of 1/4" minimum thickness steel plate or approved equal. 

END-WALLS:
The end walls shall be constructed of 10-gauge minimum thickness steel plate. 

TOP-DOORS:
The two (2) top doors shall be full-length hollow core type approximately 96" long x 30" wide by 2" thick constructed of sheet steel with insulation completely filling the core. The top doors shall be independently operated and controlled by hydraulic cylinders, minimum size of 2" diameter. Controls for the top doors shall be located at the rear of the box along with control valves for the auger and anti bridging device.

INSULATION (minimum): 
All insulation shall be (3) pound density fiberglass, which provides the minimum R rating required, or an approved equal insulation. 

TOP-DOORS:
Two (2) inch thick - Three (3) pound density that provides R4.5 per inch of thickness, R9 total.

SIDES:
Three (3) inch thick - three (3) pound density fiberglass that provides R4.5 per inch of thickness, R13.5 total.

ENDS:
Two (2) inch thick - three (3) pound density fiberglass that provides R4.5 per inch of thickness, R9 total. 

WARRANTY:
The entire unit shall have one (1) year warranty (minimum) parts and labor. This warranty shall be furnished with and as a part of the bid document and the warranty on the entire unit shall begin when the patch box is put into operation. The heating elements will have a five-year warranty.

OPTIONS:

TIE DOWN KIT:
Patch box mounting hardware shall be supplied for securing the box in the chassis dump body while in operation and shall have lifting eyes for removal of Patch Box from chassis body.

TIMECLOCK CONTROL PANEL:
Complete panel for remote mounting to provide a means of preheating the box either by a time clock or a manual setting. (H.O.A.) selector switch.

DISCHARGE CHUTE:
This unit shall be equipped with a discharge chute for dispensing the asphalt directly to the ground. The chute shall attach to the rear of the box below the auger discharge and shall be able to be rotated from side to side for dispensing.

TACK KING Model TK120H

DIMENSIONS: 
45" length
20" width
56" height

INSULATION:
2" - 3# density fiberglass equivalent to R9.

HEATING:
Electrical "Lo-Density" heating based on 240V single-phase power rated at 2KW & 8.33 AMPS and 3 watts per square inch of heater sheath so asphalt emulsion will not carbonize

CONTROL PANEL:
Shall be connected to the patching unit unless otherwise specified.

DISPENSING SYSTEM:
Shall be hydraulically driven with a 3 H.P. motor pumping 3 GPM under 50 PSI.

MOTOR:
Hydraulically driven @ 400-600 RPM with 750 RPM max.

The hydraulics shall be plumbed integral with the truck hydraulic system.
Four Yard Capacity:
This specification is for providing one (1) new model, portable slide in or permanent mount electric heated, auger dispensing asphalt patch box such as "Patch King" model PK40HSD or approved equal, which is intended to be mounted in/on the bed of a five/six yard dump truck.

DIMENSIONS (approximate):
Must fit in a dump bed which measures 114" in length (138" with Tack Tank) with the tail gate removed and 84" in width 6" above the floor. 

OVERALL LENGTH:
114 inches

OVERALL WIDTH:
48 inches at bottom; 84 inches at top 

HEIGHT:
76 inches, doors IN OPEN POSITION;
54" doors IN CLOSED POSITION. 

TOP LOADING DOORS:
shall have two (2) hydraulic operated, hinged and insulated top loading doors approximately 114" x 30"

CAPACITY:
Four (4.0) cubic yards (approx 6 tons) asphalt maximum. 

WEIGHT:
Hot asphalt box shall have a minimum weight of 3800 pounds when empty.

COLOR:
Standard factory color is black. Other colors available on request.

FUNCTION:
The Patch-Box shall be capable of keeping 4.0 yards of hot mix at working temperature for a ten (10) hour period by use of the built in electric heating system. It shall also have the ability to preheat the box by either manually turning the heat on or by means of a time clock to raise the temperature prior to loading the box with hot or cold mix. (Time clock is an option) 

HEATING:
Shall be electric of the Lo-Density type, which does not exceed one (1) watt per square inch of heated surface on the box's sides and both ends.

ELECTRIC HEATERS:
Shall be 12kW, 240V 1 or 3 phase or 480V 3 phase. There shall be a minimum of 10 heating elements running the length and width of the box, evenly separated to heat all surfaces equally. 

Heaters shall be open coil design featuring patented "Coil Lock" high temperature insulators supporting 80/20 grade nickel/chromium resistance wire of 20 gauge or heavier. 

Heaters shall be sheathed in 2" minimum OD. Tubing with a 14 gauge 

Minimum wall thickness. The heaters shall be capable of maintaining a uniform temperature in a range from 50 degrees to 350 degrees Fahrenheit. 

HEATING ELEMENT SHALL BE REMOVABLE WITHOUT REMOVING THE INSULATION. 

CONTROL PANEL:
The control panel shall be UL-LISTED and built in a facility subscribing to UL's listing and recognition services for industrial control equipment, UL 508. The panel will carry the UL label for "Enclosed Industrial Equipment". Panel construction shall be a NEMA type IV Enclosure rain-tite and dust-tite and shall be U.L. listed and approved with industrial type controlling thermostat, contactors and fusing. 

DISCHARGE AUGER:
Shall operate hydraulically from controls at the back of the box. Auger shall be reversible.

SELECTOR SWITCH:
Shall have a Hi-Low heat selector switch to provide heat for full or partial loads. This switch shall be mounted in the control panel. It shall be capable of providing energy separately to the lower half of the box (LO) or the entire box (HI). 

ANTI BRIDGING DEVICE:
Hydraulically driven and controllable from the rear of the box. Shall be capable of breaking up any bridging of asphalt material over the auger.

PLUG CONNECTORS AND CABLES:
Electric plug connectors and cable shall be power-tite, pin and sleeve type receptacle and plug with ground. Plug shall be rain- tite, and weather-tite with 25 ft. cable 90 degree centigrade type S.O. heavy duty of appropriate volt braided wire, with all to be U.L. approved. 

BOX CONSTRUCTION:
Box shall be constructed of steel plate electrically welded and reinforced at all juncture points. 

SIDE-WALLS:
The sloping side-walls and bottom shall be constructed of 1/4" minimum thickness steel plate or approved equal. 

END-WALLS:
The end walls shall be constructed of 10 gauge minimum thickness steel plate.

TOP-DOORS:
The two (2) top doors shall be full-length hollow core type approximately 114" long x 30" wide by 2" thick constructed of sheet steel with insulation completely filling the core. The top doors shall be independently operated and controlled by hydraulic cylinders, minimum size of 2" diameter. Controls for the top doors shall be located at the rear of the box along with control valves for the auger and anti bridging device. 

INSULATION (minimum):
All insulation shall be (3) pound density fiberglass, which provides the minimum R rating required, or an approved equal insulation. 

TOP-DOORS:
Two (2) inch thick - Three (3) Three (3) pound density that provides R4.5 per inch of thickness, R9 total.

SIDES:
Three (3) inch thick - three (3) pound density fiberglass that provides R4.5 per inch of thickness, R13.5 total.

ENDS:
Two (2) inch thick - three (3) pound density fiberglass that provides R4.5 per inch of thickness, R9 total. 

HYDRAULIC SYSTEM:
Auger, anti-bridge & top door operation.

HYDRAULIC SYSTEM:
The hydraulic system for the top doors, auger and anti- bridge shall be powered from the truck chassis hydraulic system by use of a diverter valve DS75, or approved equal. Hydraulic hose shall have a minimum I.D. of 1/2", with UV resistance and a minimum of 16,000 PSI burst pressure or approved equal.

AUGER FLOW RATE:
Flow rate of 10 GPM, with an approximate 2500 PSI. 

WARRANTY:
The entire unit shall have one (1) year warranty (minimum) parts and labor. This warranty shall be furnished with and as a part of the bid document and the warranty on the entire unit shall begin when the patch box is put into operation. The heating elements will have a five-year warranty.

OPTIONS:

TIE DOWN KIT:
Patch box mounting hardware shall be supplied for securing the box in the chassis dump body while in operation and shall have lifting eyes for removal of Patch Box from chassis body.

TIMECLOCK CONTROL PANEL:
Complete panel for remote mounting to provide a means of preheating the box either by a time clock or a manual setting. (H.O.A.) selector switch. 

DISCHARGE CHUTE:
This unit shall be equipped with a discharge chute for dispensing the asphalt directly to the ground. The chute shall attach to the rear of the box below the auger discharge and shall be able to be rotated from side to side for dispensing.

TACK KING Model TK120H

DIMENSIONS: 
45" length
20" width
56" height

INSULATION:
2" - 3# density fiberglass equivalent to R9.

HEATING:
Electrical "Lo-Density" heating based on 240V single-phase power rated at 2KW & 8.33 AMPS and 3 watts per square inch of heater sheath so asphalt emulsion will not carbonize

CONTROL PANEL:
Shall be connected to the patching unit unless otherwise specified.

DISPENSING SYSTEM:
Shall be hydraulically driven with a 3 H.P. motor pumping 3 GPM under 50 PSI.

MOTOR:
Hydraulically driven @ 400-600 RPM with 750 RPM max.

The hydraulics shall be plumbed integral with the truck hydraulic system.