STR-174 SPT Testing Drill Rig

SPT & Wireline Core Test Drill Rig

Starting at

$192,250

Financing Term
Selection
Approximate
Monthly Payment
$ usd
Section 179
Tax Deduction?
$ usd

The STR-174 is our largest and most powerful tier-4 compliant SPT, wireline rotary core test drill rig. The STR-174 can drill to 1000 feet and offers several drilling speed and torque options thanks to its 4-speed gearbox drill motor. Perfect for SPT soil sampling and rotary wireline core drilling, this drill rig is the best in its class.

The STR-174 includes a mud pump, manual or automatic SPT hammer system, retractable mast, dual winches for wireline drilling, and a single or dual pipe clamp with breakout.

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Specifications

Engine

  • 72 hp (53.6 kW), Yanmar tier-4 compliant, turbo charged diesel engine
  • Water cooled
  • 12 V electric start
  • Emergency stop button
  • Rpm gauge
  • Oil pressure gauge

Hydraulic System

  • 50 gpm (189 lpm) max combined hydraulic flow
  • Max 3000 psi (206 bar)
  • Load sensing variable displacement axial piston pump
  • Feather touch controls
  • Oil cooler

Track System

  • Stationary track system (300 mm wide 1727 mm long - 11.8” wide 68” long)
  • NACHI 3B track motor with automatic brake system
  • Built-in grease filled tensioning arm and spring

Mast

  • Chain driven mast
  • V-Rollers
  • Tilt rotate for travel
  • Standard mast 5.5 ft (1.5 m) stroke or extended mast 10.5 ft (3.2 m) stroke

Pipe Clamp

  • Single pipe/rod bottom clamp
  • Size capability from 1.5” to 6” (Other sizes available)

Telescopic SPT Tower

  • Telescopic SPT tower
  • 19 ft (5.79 m) max height (longer travel available)
  • Dual pulley system - SPT rope pulley and wireline pulley. Tower counterbalance hydraulic locking system

Mud Pump

  • Moyno 3L6 (or equivalent) continuous flow stator / rotor style mud pump
  • Up to 225 psi (15.5 bar)
  • 25 gpm flow (94 lpm)
  • Independent hydraulic motor
  • Quick coupling
  • Mounted on drill rig frame

SPT Hammer System

  • Rotary capstan system for manual SPT hammer (SPT hammer sold separately) (Auto hammer option available)

Leveling Outriggers

  • 4 hydraulic level outriggers with independent controls

Drill Motor - Rotary Gearbox MS-500

  • Gear 1: 90 rpm at 4580 ft lbs (6209 Nm) torque
  • Gear 2: 181 rpm at 2290 ft lbs (3104 Nm) torque
  • Gear 3: 361 rpm at 1145 ft lbs (1552 Nm) torque
  • Gear 4: 723 rpm at 573 ft lbs (776 Nm) torque
  • Built-in heavy duty wet swivel (see below)

Heavy Duty Wet Swivel

  • Top intake
  • One quick-change connectors (AWJ, AW, BW, BWL, NW, NWL, HW, HWL, PW, PWL) others available
  • Automatic spring floating system

Lifting Winch

  • 4,500 lbs (2,041 kg) lift capacity
  • Planetary gear
  • 2 ft/sec travel speed
  • Balance weight and locking hook
  • ¼”- ½” (6-12 mm) cable diameter

Second Winch

  • For wireline operations
  • 1,000 lbs (453 kg) lift capacity
  • 3.5 ft/sec travel speed

Fuel Tank

  • 10 gallon (37.8 liters) fuel tank with fuel sending sensor

Hydraulic Tank

  • 40 gallon (151 liters) hydraulic oil tank with built in site level glass

Depth Capacity

  • 500-1000 feet

Options

  • Remote control for driving operations
  • Various auger drill heads available
  • Automatic drop hammer 140 lbs (63 kg)
  • Manual drop hammer 140 lbs (63 kg)
  • Dual pipe clamp with breakout
  • Direct push drill head
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