442-60-05 Air Comp Towable 250cfm Rev2025July.docx

Specification No. 442-60-05

Specification No. 442-60-05 Specifications for a Trailer Mounted, Diesel Powered Rotary Air Compressor State of Illinois Department of Transportation Bureau of Business Services Specifications for a Trailer Mounted, Diesel Powered Rotary Air Compressor (Minimum 250 cfm) July 2025 This specification covers a trailer mounted, diesel powered, rotary screw style air compressor to be used by the Department of Transportation Division of Highways Operations forces. In an effort to improve parts and service availability and increase tool life, the Department of Transportation is specifying units 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:

The complete unit to consist of a rotary screw type air compressor, coupled to a diesel engine with a receiver tank, operator controls, and safety shut down device. Unit arranged to provide a compact assembly on a rigid frame, mounted on a axle with wheels, designed to be towed behind trucks.

Compressor:

The compressor shall be rotary screw style with direct drive air-end.

Note: This compressor to be capable of operating a minimum of two (2) hammers, rated at 90 Lbs. each for prolonged use.

The compressor to have a minimum free air delivery of 250 cfm @ 100psi.

Advertised rated operating pressure of the compressor to be 100 PSI.

Adjustable range of operating pressure from 80 PSI to 175 PSI.

The compressor supplied with two (2) 3/4“NPT outlet ports for connection to the specified hose reels.

The compressor to have a radiator style oil cooler, dry style air filter, and spin-on type oil filter.

The air receiver and oil separator shall conform to A.S.M.E. Code for working pressures required.

The compressor oil and engine oil cooling systems shall be adequate for working in 115 degree F conditions continuously.

Safety shut-downs shall be provided for low engine oil pressure and if above normal discharge air temperature occurs during operation.

Tool lubricator(s) with a combined minimum 1-quart capacity to be provided.

Note: The tool lubricator(s) can be integral with the hose reels. Provided with sight gauges so the level of lubricant is readily available to the operator.

The unit to include two (2) hose reel assemblies, Hannay spring-assist rewind or equal with 50’ hoses and separate shut offs allowing operation of one or both.

Engine:

The compressor to be powered by a current production liquid cooled diesel engine with the following:

· Meets or exceeds current emissions standards.

· Minimum gross engine HP of 70.

· Dry style air cleaner

· Fuel filter water separator

· Charging system

· Low maintenance battery

· Cold weather starting aid

· Oil filtration system with cooler.

Component provided:

The unit to have a minimum 25 gallons of fuel tank capacity or the capacity to provide a minimum of seven (7) hours of operation under load. The fuel cap or tank shall be clearly identified as “Diesel Fuel Only”.

Cooling System:

Manufacturer’s standard cooling system with extended life antifreeze rated to -30F.

Operator station:

The following monitoring systems (1 thru7) to be provided either with gauges or LED screens controlled by the operator. Functions 8 & 9 may be manual or electronic:

1. Hour meter.

2. Air pressure gauge

3. Fuel gauge.

4. High coolant temperature.

5. Low engine oil pressure.

6. Alternator output or warning light

7. High compressor temperature

8. Start/stop switch (This feature must be secured in a locked compartment.)

9. Throttle Chassis:

The chassis/trailer designed to support the full weight of unit at highway speeds.

The running gear to consist of a torsion or leaf spring suspension type axle with automotive or trailer style wheel assemblies.

The axle to have grease zerks at each hub for wheel bearing maintenance.

The drawbar/tongue to have a pintle hitch that is adjustable 22” to 27”. Safety chains to be included with hitch.

A tongue jack rated for proper gross vehicle weight (G.V.W.) of unit to be included.

Tires and wheels: New, first run quality automotive or trailer style wheel and tires rated for G.V.W. of unit and able to operate at highway speeds, but capable of "OFF ROAD" use.

Body:

The body enclosure to be constructed from Galvanneal sheet metal, aluminum, or equal corrosion resistant steel. The upper canopy or side(s) to be hinged allowing access to internal components.

The body to include the following:

Lighting:

The unit to be equipped with LED lighting for towing that meets DOT regulations. The lights to function as running, turn, and brake when plugged into tow vehicle. A 7-way SAE approved plug shall be installed on trailer lead.

Paint / Finish:

All exterior surfaces normally painted to be cleaned, prepped, painted or powder coated manufacturer’s standard color.

District Specific Body Configuration and Options:

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

District X Add options here or “No additional options are required”.

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 |_|

Picture is for visual reference only. Bid per specification.

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