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38 -- roof bolter (OB1907610) (2007-07-09)

THIS IS A COMBINDED SYNOPIS/SOLICITATION.

MSHA IS SEEKING VENDORS THAT CAN PROVIDE THE BELOW REQUEST.

PROPOSALS ARE DUE ELECTRONCIALLY BY 3:00 P.M. LOCAL TIME ON JULY 16, 2007.

ALL QUESTIONS ARE DUE ELECTRONCIALLY BY 3:00 P.M. LOCAL TIME ON JULY 9, 2007.

DESCRIPTION & DIMENSIONS

Quantity: 1
Description: Electro-hydraulic, self propelled, arm feed, dual head roof
control drill. Drillheads mounted on extending and swinging booms. Machine
is designed for an average mining height less than 8?.

Approximate Dimensions
Length: 23?
8? Width: 9? 6?
Chassis Height: 34?
Underclearance: 9?
Wheel Base: 73?
Weight: 36,000 lbs.

SPECIFICATIONS

Chassis:
Independent front and rear chassis lift - 7 degrees up, 3 degrees down
Side entry tram deck located at left rear end of machine
Four post manually adjustable tram deck canopy
Tram enable control mounted in deck

Chassis:
9? reach L TRS system with 9? to 11? manually adjustable beam
Positioning and TRS controls at front left corner of chassis
1/4" thick bolt on cover plates with 1" fringe on chassis, 2" fringe on valve
trays
Ansul 20 lb. manually actuated dry chemical fire suppression system
Zoned lubrication system
Fletcher orange paint
Three (one laminated, one paper and one cd) copies of parts & service manuals

Drive System:
Four wheel drive with 100/160 pitch chain, chain oilers, countershafts and mud
relieved sprockets
Tractor Steering, turns within length
Staffa B-80 radial piston tram motors with high flow motion control valves
M.S.H.A. approved braking system ? automatic spring set, hydraulic release
disc brakes
Tram speed: 0-1.5 mph
32" ? 14.5 x 15 STA foam filled tires

Hydraulic System:
Maximum working pressure: 3,500 psi
120 gallon drop in type hydraulic tank with breather
Venturi and hand operated fill pump with spin-on filter
Magnetic tank strainer and Pall high pressure filters
SAE o-ring fittings in hydraulic components and control valves
Manuli 3500 psi Rock Master hoses with JIC fittings
1" hoses on high flow circuit
Two Parker P350-315 series, 31-9 gpm gear pumps
Pressure gauge on each pump section, brakes and TRS accumulator
Main relief valve

Electrical System:
M.S.H.A. approved 440 or 550 VAC (customer to specify) electrical system
Two 50 HP, 60 Hz Reliance motors with quick change mounts located at rear of
chassis
Service Machine starter with Cutler Hammer magnetic line starter
with trailing cable
entrance gland and 12V tap
Horizontal axis cable reel located in center of chassis
25? of #2-3 GGC round trailing cable
Intrinsically safe, plug-in type strip stop switches at all control stations
Intrinsically safe, plug-in type start switch located at tram and drill
controls
MCI fluorescent illumination system

Dust System:
M.S.H.A. certified, vacuum type system for hollow shaft drill steels
Fletcher manual type dust collectors and auto dump dust pre-cleaners
Belt driven Roots high performance blowers with a capacity of 62 cfm
Vacuum at drill head: 15" of Hg
Vacuum regulated by an adjustable relief valve mounted at blower in-
take

Drilling System:
Arm feed drilling system with offset booms
Feed length: 72"
Boom extend: 18"
Thrust: 0-10,000 lbs.
Feed rate: 0-30 fpm
Drill head separation: 4' minimum, 19? 6? maximum, 18' 4" straight line
Fletcher deep chuck drill heads
Torque: 0-300 ft. lbs.
Rotation: 0-560 rpm
Drilling controls located on outside of drill booms
Joy stick drill feed and rotation controls with feed boost
Adjustable bolt torquing circuit with thrust relief
Feed package valve
Driller canopies with side extension mounted on two stage square support posts
with adjustable
shims and pin thru cylinder rod.

Company Reports

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