QUESTIONS -ANSWERS.pdf

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Diesel-Powered Compact Mobile Screener
Solicitation number
W91ZLK25QA020
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This document is a Questions & Answers file for a compact mobile screener solicitation, providing detailed technical specifications for a mobile screening equipment. The solicitation requires a track-mounted mobile screener with a 130 HP diesel engine, featuring a top screen of 2" and a lower screen of ¾", with top deck dimensions of 144 inches x 54 inches and bottom deck dimensions of 126 inches x 54 inches. Key technical requirements include a heavy-duty screen box, direct-feed lined hopper, integrated hydraulic folding stockpiling conveyors, tethered and radio-controlled track system, and multiple safety features such as four emergency stop switches. Additional specifications cover fuel and hydraulic tank capacities, conveyor flow rates, adjustable screen characteristics, and advanced mobility features like bolt-on tracks and hydraulic folding hopper extensions.

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Specifications Diesel-Powered Mobile Screener.pdf PDF

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QUESTIONS & ANSWERS

1. What size screen deck do you or your client need?

ANSWER: We require a top screen of 2” and a lower screen of ¾”.

2. We need to know the length and width of the top screen deck for the compact mobile screener solicitation (example 5’ x 16’).

ANSWER: Top screen of 2” and a lower screen of ¾”.

3. The description of “compact” is confusing. Typically, a 130HP diesel powered screen would not be considered compact as most compact equipment runs 74HP or less engines

ANSWER: Compact mobile screeners are designed for small jobsites and for contracting jobs where site locations change frequently.

4. Is there a model number of a specific manufacturer that you based this bid around?

ANSWER:

Diesel engine with a minimum power of 130 HP Heavy-duty, high-energy, two-bearing screen box Track-mounted mobility Direct-feed lined hopper Travel-out fixed walkways Integrated hydraulic folding stockpiling conveyors Quick on-site setup capability Lower-end screen rise for easy bottom deck access Maximum width: 102 inches Diesel fuel tank capacity: ≥ 90 gallons Hydraulic tank capacity: ≥ 135 gallons Hopper capacity: approximately 212 ft³ Feed conveyor flow rate: ≥ 20 gallons per minute (gpm) Adjustable-speed conveyors Discharge conveyor flow rate: ≥ 13 gpm Screen box with adjustable screen angle, speed, and stroke Screen box with direct drive system A minimum of four emergency stop switches: two on the RH/LH power unit and two on the RH/LH chassis front sides Armored, heavy-duty chassis cabling Engine compartment lighting Tethered and radio-controlled track system

Bolt-on tracks for rapid replacement Hydraulic folding hopper extensions Hydraulic oil cooler Top deck dimension: 144 inches x 54 inches Bottom deck dimension: 126 inches x 54 inches

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