MW Industries Series 300 Rig 

MWI 300 DD-HD DRAWWORKS 

SPECIFICATIONS
MWI DD 1038 MAIN DRUM
Main Barrel Dimensions . . . . . . . . . . . . . . . 22" x 34" (559 mm x 864 mm) with 22" (559 mm) Lebus
Wire Line Size . . . . . . . . . . . . . . . . . . . . . . 1" - other sizes optional
Drum Clutch . . . . . . . . . . . . . . . . . . . . . . .  3 - 24 PO Style
Disc Assist. . . . . . . . . . . . . . . . . . . . . . . . .Kobelt 40" Disc Caliper
Drawworks Speeds . . . . . . . . . . . . . . . . . . . 5 Forward, 1 Reverse
Input Drive Line . . . . . . . . . . . . . . . . . . . . . .1810 Spicer
Drum Drive Chain . . . . . . . . . . . . . . . . . . . .  Diamond or Drives Hi-tensile Triple 120 Roller Chain
Brake System . . . . . . . . . . . . . . . . . . . . . . 10.25" x 38" Main Drum Brake Rims
Brake Cooling . . . . . . . . . . . . . . . . . . . . . .  Air Cooled (Standard) - Splash Water Available

MWI DD 838/1038 SAND DRUM
Sandline Drum Diameter . . . . . . . . . . . . . . . 12.75" x 38" (323.85 mm x 965.20 mm)
Standard Sandline Size . . . . . . . . . . . . . . . . 9/16" (14.3 mm)
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . .14,000' (4267 m)
Sandline Drum Clutch . . . . . . . . . . . . . . . . .  2 - 18 PO Style
Drum Drive Chain . . . . . . . . . . . . . . . . . . . .  Diamond or Drives Hi-tensile Triple 120 Roller Bearing Chain
Brake System . . . . . . . . . . . . . . . . . . . . . . . 8.25" x 38" Sand Drum Brake Rims
Brake Cooling . . . . . . . . . . . . . . . . . . . . . . . Air Cooled (Standard) - Splash Water Available

DRAWWORKS FRAME
MWI DD 838/1038 frame tube is an ASTM 500 grade C tubing or grade B to meet C specs.

DRUMS
Wide barrel design reduces line interference when running double fast line.  MW Industries, Inc.'s spool drum design
reduces drum shaft flex and weight while increasing total strength.  Tubing drum has 22" x 1" (22" x 7/8" Optional) Lebus grooving with turn
back and kick plates to reduce line wear and assist in spooling.

MANUAL BRAKE SYSTEM
MW Industries, Inc. uses disc assist, air-cooled drum flanges and Kobelt double calipers. 
MWI brake flanges are rolled, machined, built up with submerged arc hard surfacing wire overlay, re-machined, and properly
balanced to specifications to ensure long life and proper wear for brake pads.  

DISC CLUTCH
 3 - 24 PO Style Power Grip Disc Plate - Main Drum
 2 - 18PO Style Power Grip Disc Plate - Sand Drum
Twin-Disc or W.P.T. brand air clutch mounted outboard of drawworks frame and chain case mounted on lower output
shaft.  MWI's use of the chain clutch on the lower shaft reduces required clutch size, air requirements, and eliminates
all live chains.

DISC ASSIST
Kobelt 40" double caliper disc assist with variable speed adjustment on operating console for proper speeds that
allow for safe and normal running job application.  Disc assist is also equipped with a main drum emergency stop.

CHAIN DRIVES
Drives and/or Diamond, Hi-tensile Triple 120 roller chains (2), oil bath for long life.  Chain is fully enclosed in an aluminum,
one-piece chain case with a gasket flange.  Inspection access covers can be removed to do visual inspections inside chain 
case, without removing entire chain case.  Output chain can be tightened by sliding right angle gear box.  Main drum chain
can be adjusted by a hard rubber surface idler bearing slack adjuster.

MWI 838/1038 HD POWER DRIVE
For ease of replacement, MWI uses "off-the-shelf" bearings gear.  Gear ratio at 2:1 Input to Output.  

OPERATORS CONSOLE
The operator's console consists of clutch, engine throttle, air slip controls, assist brake control and emergency
shutdown.  There is a transmission selector, emergency stop on main drum, tong retractor controller and horn.
The console is located behind the drawworks frame, in the mast base, for excellent
drum visibility and operator comfort.

LUBRICATION
MWI uses remote bearing lubrication.  Lubrication system ensures complete lubrication of drum bearings.  Lubrication 
points are located conveniently - outside the drawworks frame - for ease of maintenance.  Internal zerks are located behind 
access panels.

HOIST
Two (2) hydraulic "planetary" style winches mounted on the rig deck.  Capacity of the hoist is 8,000 lbs. with 235' of 1/2" 
cable with tail chain (line and chain extra).

TANK
Drawworks comes complete with one (1) 155 gallon hydraulic tank.  The tank is equipped with site glass, thermometer, 
suction and return valves plumbed under tank.  Drawworks is completed with all covers on top and around drawworks.


TELESCOPING MAST

OVERALL
A telescoping mast with open face mast design, manufactured to  meet API-4F specifications.  The open face design utilizes 
structural steel construction, which allows for maximum block clearance.  Mast includes a ladder from ground to crown
and a block cradle with chain and hook for securing block during transport.

SPECIFICATIONS
Mast Height . . . . . . . . . . . . . . . . . . . . . . . . . 96' (29.26 m)
Number of Lines to Block . . . . . . . . . . . . . . .  4 or 6
Capacity: 4-Lines . . . . . . . . . . . . . . . . . . . . .  165,000 lb. max
6-Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . .  180,000 lb. max
Drilling Line Size . . . . . . . . . . . . . . . . . . . . .  1" (25.4 mm)
Racking Board Height . . . . . . . . . . . . . . . . . . 55' 6.5" (16.93 m)
Racking Board Capacity . . . . . . . . . . . . . . . .  2 7/8" EUE . . . . . . 11,520' (3511.3 m)
Rod Basket Height . . . . . . . . . . . . . . . . . . . . 78' 3" (23.8 m)

BASE SECTION
300 Series uses a Y-Base which is welded to carrier frame and the Mast is set back at 3.5 degrees.

MAST
300 Series includes the 96'; 180,000 lb. rated on 6 lines; 5" x 5" square tube mast.  
(Engineered and analyzed to the API spec 4F.)

CROWN BLOCK
McKissick roll forged API Certified crown sheaves are set up for a 4 and 6 line string-up.  Crown sheaves are grooved for 1".  
All sheaves are mounted on tapered roller bearings lubed from a grease zerk bank for ease of maintenance.
300 Series Crown includes:  
One (1) 24" (610 mm) fast line sheave, one (1) 24" (610 mm) dead line sheave, two (2), 24" (610 mm) crossover sheaves, and one (1) 24" (610 mm) sandline sheave for 9/16" cable.

RACKING BOARD AND ROD BASKET
The mast includes an all welded racking board.  The racking board automatically deploys as the mast is extended.
The mast includes an automatically deploying rod basket with rod hangers, air transfer system (on a roller trolley slide
for easier access for placement in fingers), and safety chain with binder on end of fingers.

MAST RAISING SYSTEM
The mast utilizes one (1), 3-stage double acting raising rams and one (1) double-stage telescoping cylinder built 
with a slide.  Load pins are hydraulically operated.  Raising, telescoping, and load pin controls are located under 
the operator's console for easy access and operation.  Hydraulic pressure gauges are mounted on the mast base
to provide system monitoring during the raising/lowering process.  The hydraulic system incorporates a safety
choke system to control flow to telescoping or raising cylinders in case of a hydraulic line rupture or damage.

LOAD GUYS
Mast includes two (2) 3/4" load guys from the crown to carrier; two (2) 5/8" board guys from board to outriggers and
two (2) 3/8" floor lines from board to floor.

DEADLINE ANCHOR
Deadline anchor is designed and engineered to strict API specifications and rated for a 150,000 lb. maximum 
deadline load. 

FOLDING WORK PLATFORM
Platform is constructed of rectangular tubing and is decked with a reduced slip grating.  Platform is adjustable in
height in reference from ground level.  Platform includes a sliding access door and safety railings.  Optional telescoping
staircase with safety rails available.

POWER PLANT & TRANSMISSION

ENGINE
Cummins QSL9 FR91520 MAX, 370 H.P., Including Jake Brake.  

TRANSMISSION
The Allison 4700 OFS Model automatic transmission provides five (5) forward speeds and one (1) reverse in
rig mode. Road mode provides six (6) forward speeds and one (1) reverse speed. Remote shifting is provided
from the operator's console via an electronic shifting system; Manual mode with five (5) speeds is also available.  
All engine/transmission combinations are reviewed and approved by the transmission manufacturer for correct 
engineering, installation, and engine compatibility.  

SPECIFICATIONS - RIG MODE
Net Input Torque (max.) . . . . . . . . . . . . . . . . 1120 Lb-Ft/1519.84 Nm
Torque Converter . . . . . . . . . . . . . . . . . . . . . 2600 Lb-Ft/3525 Nm
Gear Ratios:
First . . . . . . . . . 7.63:1
Second . . . . . .  3.51:1
Third . . . . . . . .  1.91:1
Fourth . . . . . . .  1.43:1
Fifth . . . . . . . . .  1.00:1
Reverse 1 . . . . . -4.80:1

AIR SYSTEM
One (1) engine driven 30-cfm compressor pressurizing an air system plumbed in accordance with applicable
DOT regulations and requirements.  The air system consists of a wet, primary, secondary and auxillary tanks.
Check valves prevent accidental air pressure loss from system due to single 
line failure.  Main air lines are plumbed with QEM style steel airlines and compression fittings rather than threaded
pipe with Bendix Twin AD-IP Everflow with heater probe. (Alcohol pot optional)

4-5 AXLE CARRIER (Long Wheels Base) (depending on state/international weight requirements)

OVERALL
The carrier is manufactured by Kimble Custom Chassis and is a heavy-duty 4 or 5 axle oil field carrier with two (2)
front steering axles, two (2) rear-driving axles or Tri Drive.  All frame members coped and welded for superior strength 
and durability.  The carrier is designed for maximum manuverability, road clearance and turning radius.  Location of axles
specially engineered to correctly distribute weight in proportion to front and rear axles.  MWI's Engineering Team will 
contact applicable DOT(s) of state (s) for proper weights and bridge laws.

SPECIFICATIONS
Weights will change with configuration of customer's choice of blocks, string-up and rig options.

CARRIER FRAME
A 21" slot and tab beam manufactured by Kimble Manufacturing Company, specifically manufactured for MW Industries, Inc.
front and rear tow lugs are welded to the end of the frame rails for proper load distribution during towing.  Carrier
HD-Deck is fabricated with 1/8" diamond deck plate. Decking is formed in a brake press with an outer edge backbone 
to ensure long life and durability with no deck sag.

FRONT AXLES
Dana D-2000W Front tandem axle set is steerable and rated at 17,375 lbs. per axle and spring suspension rated at 44,000 lbs.

REAR DRIVING AXLES
Dana D-52 190D Tandem Series rear driving axles are rated at 19,333 lbs. Hendrickson walking beam rear
suspension.  Standard ratio is 6.17:1.

BRAKE SYSTEM
16.5 x 7 ABS-with auto slack adjusters - DOT approved regulation anti-lock air brake system.  Drum style brakes
on all axles.  Carrier is equipped with additional air emergency brake.

TIRES AND WHEELS
The four (4) front tires are 445/65 R22.5 wide-base tires mounted on 13" x 22.5" aluminum hub-piloted "bud" type
wheel.  The Eight (8), (optional 12) rear tires are 11R 24.5 General or Continental all-terrain tires 
mounted on 8.25" x 24.5" hub-piloted aluminum "bud" style wheels.

CAB
MWI's easy access cab is custom made, soundproof, single person cab set up for left-hand drive.  Cab is equipped
with air suspension seat, heater, defroster, windshield wiper, windshield washer, air horn, and
West Coast mirrors with lights and heater.  Instrumentation consists of speedometer, voltmeter, oil PSI with
warning lights, tachometer with hour meter, coolant temperature with warning lights, air PSI, and fuel gauge with
warning lights.  Tilt and telescoping steering also included.

STEERING
Rig steering is a hydraulic assisted system, with one (1) cylinder mounted on each axle and a hydraulically assisted
steering box (carrier is equipped with wide turning radius).

RIG LEVELING SYSTEM
Rig leveling is done with four (4) MWI hydraulic leveling jacks with locks.  The rig has two (2) front jacks and two (2)
rear jacks on the outriggers and two (2) manual stabilizer jacks under rear bumper.

OTHER EQUIPMENT
The MWI 4 or 5 axle carrier comes complete with integrated removable aluminum rig stairs, aluminum operator side
fold-down walk ways, OSHA approved aluminum guard rails, aluminum driveline covers, one (1) tong retractor, one (1)
tool box, and one (1) 100-gallon fuel tank.

STANDARD PAINT AND PREPARATION:
PPG/DUPONT COMMERCIAL COATINGS

PREPARATION
Rig is thoroughly washed and sandblasted prior to priming.

PRIMER COAT
MWI uses a DuPont satin high solid epoxy primer, 3 mils thick.

TOP COAT
High gloss polyurethane . . . . . . . . . . 2 mils thick
Metallic and/or pearl optional . . . . . .  2 mils thick

CLEAR COAT
The unit is finish coated with up to two (2)  non-metallic clear coats.  Heavy duty performance finish coat is 
DuPont 3-4 mils in thickness.

OPTIONS
*Complete tool package-rod equipment, tubing equipment, etc.
*Manual Swingout extended out-riggers with manual tail screws.
*Lighting package
*Cold package
*Complete drawworks packages
*Complete derrick mast
*Rod rakes
*Brake flanges
*McKissick traveling blocks
*Other options available upon request