Prowinch is a UL 508A / File No. E524056 Certified Industrial Control Panel (ICPs) manufacturer for United States and Canada with in-house electrical engineers and designers specialized in most types of Cranes, Winches and Hoists controllers offering Complete turnkey solutions and products with multiple optionals to meet applicable UL safety requirements. All our UL508A Control Panels are assembled and tested by Prowinch in our Certified Facility in Miami, USA.

70 Tons Winch Heavy Duty Industrial 3 Phase


SKU: PWM70VFD
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Key features

  • Heavy Duty Variable Speed with full Programmable Desk Control Panel
  • Odometer, Speed Indicator, Temp., V/HZ/AMP , Graphics, Load alarm, Speed alarm, E-Stop and Lock
  • Motor Brake, Double Reducer Brake and Dynamic Brake as Standard. Direct Drum Disk Brake as an Optional
  • US ASME B30.7 and EC EN14492-2 , EN60204-32 Standard (Certified UL508 Control Panel as an Optional)
  • 3 Year Warranty, Customer Support and Service in the USA
70 Tons Winch Heavy Duty Industrial 3 Phase

Prowinch Variable Speed Mega Winch

All of our variable speed mega winches are created with the goal of offering the best performance-price ratio.

Key Components

All components are constantly tested and improved to meet the highest quality standards. Key electronic components are produced by the best European or American brands to ensure reliability of the product and availability of the spares. Final assembly and all tests are performed in our facilities in USA or Chile before shipping to ensure that every unit meets the corresponding standard.

Duty Classification

Duty Classification is a key factor when choosing the right unit. This H5 heavy duty industrial winch is suitable for high-volume continuous operation. These winches have 100% max. operational time per hour and can handle up to 600 starts per hour. Operational time ratings are calculated at a 65% load factor, as per ASME Standard.

Control System

This electric winch is designed to be driven by a variable speed control. SEW Eurodrive (Germany), Yaskawa (Japan) and Invertek (England) are our standard options, others available upon request. These units contains the best electronic components available on the market. A PWZR series programmable desk control is also included with the unit, enabling the operator to monitor all the information necessary for the safe operation of the winch. Speed, distance, temperatures, Alarms can be programed, limits, etc.

Braking System

Prowinch mega winches offer multiple brake options including a motor brake, reducer brake, drum brake, and dynamic brake. All brake systems are tested at 125% of the rated winch capacity and are designed to automatically engage immediately upon any loss of power.

Technical Specifications

PWM70VFD
  • 1st Layer Rated Capacity 70 tons
  • IEC Electric Control Box Protection IP65
  • Last Layer Rated Capacity 45 tons
  • Variable Fequency Driver SEW, Yaskawa, Siemens or Invertek
  • Number of Layers 7
  • Dynamic Brake Included
  • Speed (f/m) / min 5.9 - 9.1 m/min / 19 - 30 [ft/min]
  • Control PWZR7 Programable Desktop Control with touch screen
  • Number of Speeds Variable Speed
  • Electric Control Box Electric Control Box with VFD (UL508 Optional)
  • Capacity Range 11
  • Transmission / Reducer Type JYQ1000
  • Voltage 3 Phase 380/440~480V 50/60Hz
  • Gear Ratio 40.17
  • Total Power Watts 90 kW
  • Reducer Brake Electro Hydraulic YWZ400 (x2)
  • Duty Class H5/M7/4m/Class E
  • Drum Brake Optional
  • Motor Poles 8
  • Recommended Wire Rope IWRC 54 mm x 600 m (MBL 1550 kn)
  • Motor RPM 732
  • Drum Type Plain
  • Motor Brake Electromagnetic Disc Release Brake (x1)
  • Standards Compliance ASME B30.7 / B30.10 / CE
  • Insulation Grade F
  • Warranty 3 Year
  • IEC Motor Protection IP54

Unit Weight & Dimensions

  • BD Barrel Diameter 1100 mm
  • DL Drum Length 1100 mm
  • FD Flange Diameter 1800 mm