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BSF 20-4

Unmatched Versatility in a Compact Design

Whether you are just starting out, or adding more flexibility to your existing fleet — Putzmeister’s BSF 20-4 is a cost-effective option. The compact design allows easy maneuvering through busy, urban job sites. The versatile four-section Z-Fold boom, with 19.46 meters of vertical reach can operate in challenging places including areas with low ceilings.

This is possible because both the Multi-Z and Z-Fold configurations can begin a pour before the boom is fully unfolded. A standard swivel elbow, off the back-end with a 90-degree pivot, also allows you to use the BSF 20-4 as a City Pump. Another integral component is the Ergonic Output Control (EOC) which reduces fuel consumption, wear and noise. An easy-to-use graphic display lets you keep track of hydraulic fluid temperature, operating hours, delivery pressure and limit, and delivery rate and limit.

Key Features

  • Low fuel consumption
  • Reduced component wear
  • S-Valve built for high-pressure applications
  • Hard-chromed concrete cylinders
  • Innovative RFID safety switch disables machine when grate is opened

Technical Details

General Information

  • Number of sections
    4
  • Boom Style
    Z-Fold
  • Vertical Reach
    19.46 m
  • Horizontal Reach
    16.43 m
  • Reach from Front of Truck
    13.51 m
  • Reach Depth
    11.15 m
  • Unfolding Height
    3.91 m
  • End Hose Length max.
    3 m
  • Delivery Line (DN + Pressure)
    125/5.5/85 mm/bar
  • Support width Standard (front-rear)
    3.40/2.59 m
  • Outrigger load: Front-Rear
    105/65 kN
  • Length x Width x Height
    10.50 x 2.40 x 3.50 m
  • Front Axle Weight
    4882 kg
  • Rear Axle Weight
    12356 kg
  • Total Weight (approx.)
    17239 kg
  • Wheelbase
    5715 mm

Configuration

  • Material Cylinder Diameter-Stroke Length
    230/2100 mm
  • Output (piston side)
    74 m³/hr
  • Delivery Pressure (piston side)
    130 bar
  • Strokes (piston side)
    14
  • Output (rod side)
    110 m³/hr
  • Delivery Pressure (rod side)
    85 bar
  • Strokes (rod side)
    21
  • Material Cylinder Diameter-Stroke Length
    230/1400 mm
  • Output (piston side)
    90 m³/hr
  • Delivery Pressure (piston side)
    78 bar
  • Strokes (piston side)
    26

Brochures & Spec Sheets