Explorer 2 - Industrial Hydraulics Training System



Regular price $9,395.00

The Explorer II is a comprehensive maintenance training system for Industrial Hydraulics. This system provides the components and hands-on training required to effectively troubleshoot and repair hydraulics systems used by today’s employers. TII’s curriculum covers hydraulic technology in its four areas of instruction: Fundamentals, Applications, Physical Properties and Maintenance. We begin with the fundamentals which can be used as either an introduction or a review of key principles. Additional sections focus on different types of valves, cylinders, and hydraulic devices like hydraulic jacks and regenerative circuits.

Our training system is accompanied by a comprehensive student manual and instructor’s guide with 42 units of activities and instructional support. Each of the four necessary levels of instruction includes background study of the topic, observational and hands-on experiments, application exercises, and mathematical formulas for proving results.

  • Lockable storage area provides space for manuals and additional components
  • Specialty components available to expand capabilities of the system
  • Mounting hardware included
  • Portable, rugged design


System Specifications

  • Modular system design
  • Constructed of an extruded and welded aluminum “U” channel frame with formed sheet steel shell
  • May be used as a stand-alone system or integrated into a bench configuration with other TII trainers

Instrumentation Section

  • Instrumentation Section is mounted at eye-level for easy reading of gauges
  • Panel is constructed of 16-gauge chrome plated and brushed steel
  • All gauges, cylinders, and instruments have been identified in large letting
  • Includes: system pressure gauge, two in-line pressure testing gauges, a four-port pressure manifold, a four-port return manifold, a 24-volt DC power supply, momentary switch with output jacks.

Component Panel

  • Mounted at an angle for ease of use
  • Constructed of 16-gauge chrome plated and brushed steel
  • All instruments are clearly identified
  • 4-way, 2-position solenoid directional control valve, relief valve, sequence valve, pressure reducing valve, a compensated flow control valve, uncompensated flow control valve, needle valve, check valve, double acting cylinder (5″ stroke, 1-1/16″ bore), double acting cylinder (5″ stroke, 1-1/12″ bore)
  • Bottom of the component panel is used for conducting experiments and building circuits

Additional Components

  • 4-way, 3-position level-operated directional control valve
  • Tandem center spool, viscometer, thermometer, flowmeter
  • Piloted check valve cartridge
  • Power cord for the solenoid valve
  • Load spring kit
  • Two T-fittings, two hose couplings
  • Eight 24″ hydraulic hoses
  • Four 48″ hydraulic hoses
  • 7/8″ open-ended wrench

Storage Compartment

  • Behind the component panel and accessed through a hinged door with lock
  • Designed for storing hoses and extra components
  • All components, hoses, instruments, and fitting are industrial-grade design
  • All direction control valves are removable and dissectible
  • Actuators and spools on direction control valves are interchangeable
  • All fittings are ball-check quick connect / disconnect


  1. Explorer II System Familiarization
  2. Principles of Hydraulic Systems
  3. Hydraulic Fluids
  4. Graphic Communication Symbols
  5. Instrumentation: Theory and Purpose
  6. Pressure Gauges
  7. Flow Meters
  8. Pumps
  9. Pressure Controls: Theory and Purpose
  10. Relief Valves
  11. Reducing Valves
  12. Sequence Valves
  13. Directional Control Valves: Theory and Purpose
  14. Manual Directional Control Valves: Closed and Tandem Centers
  15. Solenoid Directional Control Valves
  16. Check Valves: Theory and Purpose
  17. Check Valves
  18. Pilot Operated Check Valves
  19. Flow Control Valves: Theory and Purpose
  20. Needle Valves
  21. Pressure Compensated Flow Control Valves
  22. Non-Compensated Flow Control Valves
  23. Linear Actuators: Theory and Purpose
  24. Double Acting Cylinders
  25. Speed / Area Relationship of a Cylinder
  26. Force / Area Relationship of a Cylinder
  27. Rotary Actuators
  28. Fluid Filters
  29. Piping Considerations and Components
  30. Maintenance and Troubleshooting
  31. Cylinders in Series
  32. Hydraulic Lock Out
  33. Dual Speed Control
  34. Pump Unloading
  35. Cylinders in Parallel
  36. Hydraulic Jack
  37. Regenerative Circuit
  38. Dual Pressure Control
  39. Sequenced Cylinders
  40. Meter-in Speed Control
  41. Meter-out Speed Control
  42. Bleed-off Circuit Speed Control