285-60-01 D5 Trailer Mounted Core Drill Rev2025Oct.docx

Specification No. 285-60-01 D5

Specification No. 285-60-01

Specifications for a Trailer Mounted Core Drilling Unit

State of Illinois Department of Transportation Bureau of Business Services

Specifications for a Trailer Mounted Core Drill Unit

October 2025 This specification covers a Trailer Mounted Core Drill Unit for use in the Department of Transportation Operations for pavement testing. To improve operating efficiency, parts and service availability the Department of Transportation is specifying acceptable units by required equipment and accessories as outlined below.

Requirements of the Bidders:

All bidders are expected to quote upon a manufacturer's latest standard model complete with all standard equipment plus any optional or special equipment required. Optional equipment when called for in the specification to be included in the quoted unit price. Units shall have all necessary accessories and attachments mounted when delivered and as described in the attached specifications. Deviations from these requirements in efforts to obtain extremely low prices will not be acceptable. Equipment proposed meet the requirements specified below.

Unless otherwise specified, the proposed equipment shall be complete in all parts and ready for immediate use upon delivery.

Bidders are advised to carefully read these specifications as changes have been made since the last solicitation issue.

Proposed with this Bid:

All units to include the following standard or optional accessories and equipment:

Core Drill Design:

Trailer mounted core drill machine, self-contained unit with a single engine power source capable of drilling with thin wall diamond bits for pavement testing in sizes ranging up to 13” in diameter.

Engine:

Current production, liquid-cooled diesel meeting the following minimums:

· Minimum gross engine HP of 24 @ 2,400 RPM.

· Meets or exceeds current emissions standards.

· Dry style air cleaner.

· Fuel filter water separator.

· 12-volt electrical system.

· Charging system.

· Low Maintenance battery.

· Long Life Antifreeze -30F.

· Cold weather starting aid. (If required) Component provided:

Minimum 3-gallon fuel tank capacity. The tank or cap to be clearly identified.

The engine controls and instruments at minimum to include:

· Key operated ignition or pass code.

· Starter switch with neutral safety switch

· Hand or Automatic controlled throttle

· Hour meter

Transmission:

Four (4) speed synchromesh automotive type with reverse or hydraulically driven allowing for infinitely variable speeds.

Drilling Head:

Mechanical drill head with 30” minimum spindle travel to accommodate AW rods in the following design:

· Closed type head with spiral bevel gears.

· Roller bearing mounted bronze quill.

· Octagonal spindle with 1-27/32” inside diameter.

· Bolted flange thin wall bit mounting axle.

· 2” bore twin cylinders with minimum 30” stroke.

Drill head capable of swiveling through 360° for angle hole drilling Spindle speeds within the following ranges 220-225, 450-460, 840-850, and 1400-1430 RPM with the engine speed @1,800RPM.

The drill spindle pulling (retract) force to be greater than the thrust force to enable the operator to remove stuck cores and bits from the surface samples (pavement).

The unit to include a drill rate gauge or means of determining drill rate.

Core barrel Guide:

The core barrel guide to be capable of raising and lowering hydraulically. The guide to have a 13” minimum opening, flexible ground skirt opening, and a minimum of three (3) cam roller adjustable guides attached to 2 cylinders mounted to the main structural frame of the drill.

Core barrel attachment to accommodate the use of expanding ring adapter concept on 2” diameter and larger sizes of solid concept.

Dual Axis Slide Base:

Provides a minimum 12” forward and backward movement and a minimum lateral movement of 6” each side of center.

Hydraulic System:

Hydraulic gear pump with constant delivery capable of a minimum 6 GPM @1000 PSI.

The pump to be PTO driven off an auxiliary pad attached to the diesel power unit. Disengagement of the main clutch not to affect the operation of the water pump or the hydraulic pump.

The unit to be equipped with a minimum 16-gallon hydraulic oil tank with a sight gauge, combination filter / breather cap, and a magnetic drain plug.

Return line filter with a replaceable cartridge.

Control valve assembly, 3 spool stack type with 4-way control valves and an adjustable type master relief valve.

System gauge with a pulsation dampener reading the bit weight in pounds.

Manually adjustable valve for infinity variable drill head feed rate and fast return feature.

Manually adjustable valve for infinitely variable bit weight.

Water Pump:

Constant displacement tubular type pump driven by an in-line hydraulic motor capable of a minimum 7 GPM @ 75 PSI. The hydraulic controls to be easily accessible at the operator’s station.

Plumbing:

The water piping and plumbing to consist of the following at a minimum:

· Pump relief valve

· Pump by-pass valve

· Pump flexible suction hose from the tank with a check valve.

· Metering valve from pump discharge to water swivel.

· Hand valves permitting suction from the tank or other source.

· Priming port

· Drain port

· Pressure gauge

· Piping for the use of garden type hose for handheld operations.

Note: All flow regulating valves to be located at the operator’s station.

Water Tank:

Stainless-steel water tank, minimum 200-gallon capacity with longitudinal and transverse baffles for highway travel. Drain with shutoff for flushing tank or winterizing to be included.

Tank deck and any step access points to have a non-skid surface.

Stanchion Mounted Control Panel:

Controls to be located in a stanchion mounted panel allowing the operator to pivot the panel left to right for drilling operations. If a vandal proof cover option is available, it is to be provided.

Safety Shutdown:

The unit to include a single point safety function in operators control panel that simultaneously disengages the main power source and stops all drilling operations.

Tools:

The unit to be equipped with the following tools for normal operation and adjustment of the drill.

· (1)- ball bearing water swivel

· (1)- ¾” x10’ water swivel hose

· (1)- drill spindle adaptor to 1 ¼” 7 TPI pin or as needed

· (1)- 1 ½” x 20” suction hose with foot valve and strainer Toolbox:

Manufacturer’s standard toolbox to store provided tools with locking latch or hasp.

Trailer:

The trailer shall comply with all current Federal and State Safety Standards.

Chassis to be constructed of structural tubing, channel or beam, main longitudinal members which continue to form a “V” type drawbar (tongue). The drawbar to allow for mounting an adjustable height, medium duty pintle eye or ball type hitch. A fully retractable pneumatic tire dolly caster wheel to be mounted on the drawbar. The dolly to lock in both the up and down position. The dolly wheel rated to support the full drawbar (tongue) weight when unhooked from tow vehicle.

Trailer chassis to have a minimum of three (3) hydraulic leveling jacks with a minimum 6” diameter full swivel pads. Jack mounting to allow for course adjustment. If clamp sleeves are utilized, they’re to be permanently attached to the trailer.

Truck Connection for Lighting and Electrical:

Type – Heavy all-weather cord with 7-way connector, utilizing round pins and sockets, SAE/ATA approved, plug portion installed on trailer with lead long enough to allow for turning movements of the trailer. The pin portion or socket is provided with the truck installation.

Breakaway System:

The electric brake system to include a sealed breakaway safety system.

Axle / Suspension:

Minimum of one (1) 5,000lb. minimum axle with spring or torsion flex type suspension. Hubs to be EZ lube or oil bath design. Brakes, electric self-adjusting type.

Component:

Tires and Wheels:

New, first run quality, trailer type, radial size minimum 16” or as needed to meet GVWR with matching spare tire and wheel mounted on trailer. Wheels to be manufacturers standard color or finish.

Wiring and Lights:

All wiring and lights to be in a totally enclosed package. All holes in the body to be grommeted and sealed and junction boxes provided when necessary.

Clearance lights and reflectors to comply with the Illinois Motor Vehicle Laws and Federal safety requirements plus taillights, stop lights, and turn signal lights to be provided.

All exterior lights to be LED and mounted in shock-proof light mountings.

DOT approved reflective conspicuity tape to run entire length of trailer at bottom of side, walls, and rear gate.

Safety Lighting Package:

Amber / White LED warning light system to be included. The system to provide 360 degrees of visibility at a minimum of 1,000 feet in direct sunlight.

Minimum of one (1) LED work light to be included for night or low light operations. Light to encompass drill work area.

All switching to be easily accessible by operator during drill operations.

Paint / Finish: See District Specific Options All parts normally painted to be cleaned, prepped, painted or powder coated manufacturer’s standard color.

All under carriage not painted or powder coated to be coated with an automotive type corrosion prohibitor.

The above specifications will be the same for all units.

District Specific Configuration and Options:

Listed below are the requirements for the configuration for the requesting District’s unit. Some options may be in “Lieu of” or “in Addition to” the base specification.

District 5 Paint / Finish: In “Lieu” of base specification.

The coring unit, platform, and all parts normally painted to be cleaned, prepped, primed and painted Ford Race Red code PQ / 7236.

All exposed hydraulic cylinder piston rods, gauges, and other parts and assemblies not normally painted to be covered to prevent overspray during painting.

Stainless steel, galvanized, or plated hardware to be used when applicable to prevent corrosion.

Warranty and General Bid Information:

Safety Features:

The unit proposed must comply with all Federal, OSHA and ANSI safety requirements.

Inspection and Tests:

The State of Illinois reserves the right to request the bidder to give a demonstration of the unit prior to delivery.

Cost of minor modifications to the unit, if required, and contained in the specifications, will be borne by the successful bidder.

Manufacturer's Standard Warranty:

Coverage - All defective parts and workmanship.

Duration - One (1) year from date of acceptance minimum.

Warranty service - All defects shall be corrected at no cost to the State.

Safety Components:

The truck/unit shall be furnished complete with all safety components that are required by the current Federal, State, ANSI, NEMA and OSHA Safety Standards.

Manuals:

Copies of all operators’ manuals, parts lists and warranty information shall be provided at the time of delivery.

One copy of the service or shop manual for each machine shall be provided upon delivery.

Note: The manuals, parts lists, and service or shop manuals listed above may be furnished on Flash drive in lieu of paper.

Educational Instruction:

Instruction performed by qualified factory or dealer personnel covering the operation, routine service and maintenance of the complete unit shall be provided upon delivery or scheduled thereafter. The instruction shall be for all personnel in the assigned headquarters location of the machine. More than a single day may be required to satisfy this requirement.

If available, an instructional video covering the operation of this equipment.

Bid Response:

Bidders will need to send copies of each of the following with their bid response.

a) Specification

b) Descriptive Literature

Bidder/Vendor acknowledges the requirements of the specification. Yes |_| No |_|