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EV Crane Gear CaseEV Crane

The Choice for Built-Up Class D Cranes

With hoist capacities from 5-30 tons, and pre-engineered spans up to 100 feet for single or dual trolley configurations, Whiting will deliver an EV Crane quickly to fit your production schedule. Whiting’s engineering team translated their experience building heavy-duty cranes into a robust and cost-competitive built-up CMAA Class “D” crane. The EV Crane is the solution for businesses looking for a built-up lifting system without busting the budget or settling for a substandard packaged hoist.

EV Trolley Features

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EV Crane
Hoist Drum Hoist Motor Hoist Gear Case Trolley Wheels Trolley Drive Motor Upper and Lower Hoist Limits Upper and Equalizing Sheave Trolley Frame

Hoist Drum

  • Horizontally Split Cast Iron with AGMA 8 Gearing
  • Three-Point Suspension for Drum and Reducer Alignment
  • 25,000 Hour Rated Bearings
  • Inspection Cover

Hoist Motor

  • Closed-Loop Vector Duty TENV 60 Minute Motor in NEMA Frame
  • Class “H” Insulation with Klixon Thermostats
  • Integrated 1024 PPR Encoder for True Vector Control
  • Motor-Mounted Disc Brake Designed for 150% Full Motor Torque

Hoist Gear Case

  •  Horizontally Split Cast Iron with AGMA 8 Gearing
  • Three-Point Suspension for Drum and Reducer Alignment
  • 25,000 Hour Rated Bearings
  • Inspection Cover

Trolley Wheels

  • Forged Steel with Straight Treads and Double Flanges
  • Keyed and Press Fit Drive Wheels

Trolley Drive Motor

  • Inverter-Duty Squirrel Cage Motor with TEFC 60 Minute Duty Enclosure
  • Class “H” Insulation with Klixon Thermostats
  • Motor-Mounted Disc Brake
  • Shaft-Mounted Bevel Reducer

Upper and Lower Hoist Limits

  • Rotary Geared Upper and Lower Control Limit
  • Standard Backup Upper Weight Limit Switch

 

Upper and Equalizing Sheave

  • Reeved for True Vertical Lift
  • 24:1 Rope to Sheave Ratio Exceeds CMAA Class "D" specifications

Trolley Frame

  • Built-Up Structural Steel Frame
  • Sheave Nest Above Deck
  • Standard Drop Bars and Bumpers Designed to CMAA Standards

Controls

Standard Radio Controls with Optional Pendant Controls

Hoist: True Closed Loop Vector Controls with Heavy-Duty Dynamic Braking Resistors
Trolley: Variable Frequency Controls with Heavy-Duty Dynamic Braking Resistors

Why Does Whiting Use True Closed Loop Vectors on All of Their Hoists

Safety and Absolute Control

Closed Loop controls utilize a motor shaft-mounted encoder that provides constant feedback. This allows for continuous full torque at zero speed. Using a rugged and highly responsive 1024 PPR encoder, the crane operator can hold the position of a load while moving it without setting the brake. This efficient process lengthens the life of the mechanical brake by minimizing its actuations.

Whiting’s Closed Loop controls also monitor the condition of the hoist brake. The controls will counter-torque against the brake before the hoist is used. If it holds, then the operator can move the load without issue. It not, it causes a fault and alerts the operator to a potential brake issue while giving them an opportunity to move the load to safety. This monitoring catches potential hoist brake issues before they turn into catastrophic failures.

Wire Rope

  • 1/2″ 6 X 37 EIPS-IWRC with a 5:1 Safety Factor
  • Two Dead Wraps on Drum

 

Load Block

  • Semi-Enclosed and Close Guarded
  • Steel Construction Single Barbed Hook with Standard Heavy Duty Hook Latch
  • Thrust Bearing Mounting for Full 360-Degree Rotation
 

Bridge Design and Features

  • Pre-Engineered Up to a 100 Foot Span
  • Custom Engineered for Spans Beyond 100 Feet
  • Single and Dual Trolley Configurations
  • Standard Panel Lights, Convenience Outlets, and Terminal Strips in Electrical Enclosures

 

Optimized for Long-Term Durability 

What This Means for You

  • Proven, Time-Tested Designs
  • Engineered to Provide Optimum Stress Flow Through Girders
  • Increased Crane Lifespan
  • Minimum Waste in Design Means No Unnecessary Weight
  • Lowered Overall Runway Wheel Load Means Reduces Overall Costs for Construction of a New Facility

The Whiting Difference

Single Source Responsibility
of all crane components from design through manufacturing, installation, and lifetime support

Designed for Ease of Maintenance
with generous space around components and low maintenance requirements

Forgiving Design
tolerates crane operators of varying skill

Maximum Uptime
with time-tested designs that last

Exceptional Value
throughout the lifetime of the crane