GMP Whisper Cable Blowing Machine

The Whisper installs microcable and its versatility saves you money. Now you can depend on the same GMP quality as our larger machines in a new smaller package.

The design of the Whisper flatdrop provides for quick and easy component changes for different cable or duct sizes. Its compact size and portable maneuverability make the Whisper ideally suited for external or in-building use.

The Whisper uses compressed air to install the cable. The rollers, powered by most types of cordless drills (not included), control the microfiber as it is propelled into the microduct. An electronic monitoring system provides read-outs of speed and distance.

Main Features:

  • Now flat drop compatible
  • Installs cable diameters of 2 to 8.5mm
  • Accommodates microduct sizes of 4 to 18 mm
  • Uses most any variable speed drill as a power source
  • Light weight, durable construction with precision machined parts
  • Single person operation
  • Digital cable speed and length monitoring
  • Integral air valve and pressure gauge
  • Low maintenance
  • Ideal for smaller jobs where a bigger machine is simply too much
  • Travel bag included


  • Cable Diameter: 2 to 8.5mm and various manufacturers flat drop
  • Tube Size (Outside Dia): 4 to 18mm
  • Cable Speed (Adjustable): 0-300 ft/min (0-90m/min)
  • Max Air Pressure: 220 psi (15 Bar)
  • Power Requirement: Variable Speed Drill
  • Width: 8.1” (206mm)
  • Length: 9.7” (246mm)
  • Height: 8.5” (216mm)
  • Net Weight: 12 lbs. (5.4kg)
  • Whisper Micro Cable Blowing Machine: P/N 89910 Weight: 12 lbs (5.4kgs)
  • Whisper Micro Cable Blowing Machine for Flat Drop Fiber Optic Cable: P/N 89915 Weight: 12.5 lbs (5.6kgs)