The SERMAC 4ZR20 City-Pump is fitted with a "ZR" folding boom for ultimate versatility. With a minimum opening height of only 4,2 m and pipeline of Ø 125 mm, this pump provides the ideal solution for placing concrete in city centres or confined spaces where medium size concrete pumps would have difficulties in accessing and setting up. The 4ZR20 City-Pump is perfect for medium-small jobsites, working inside or any concrete pumping that requires a limited ground space to set-up. The 4ZR20 can easily operate in urban areas thanks to the assembly of the truck on a 2 axle wheelbase of 3,690  3,900 mm. The pumping group G9 at open circuit hydraulic system model AG9M10-100-80 offers reliability and high performance theoretical concrete output up to 100 m³/h and pressure up to 80 bar.


Main features

  • Concrete pump designed and made by SERMAC
  • Structural analyses with Finite Element Method (FEM)
  • Pump frame designed for high torsion rigidity
  • Suitable for assembly on 2-axle trucks
  • Boom 4-stage, ZR-folding type
  • Pipeline Ø 125 mm (5”)
  • Main components sourced from genuine European manufacturers
  • Pumping unit with open hydraulic system
  • Concrete S-valve Ø 9”
  • Ideal for working in tight spaces
  • Total mass on ground < 16 t

Standard dotation

  • X-type front outriggers and fixed diagonal type rear outriggers
  • Driven by gear box (supplied separately)
  • Concrete pipeline made in twin-wall with chromium carbide inserts
  • Boom control by proportional distributor “Load Sensing”
  • Two sets of radio remote controls provided with 2-speed proportional boom control
  • High strength wear parts (S valve, wear plate, compensation ring)
  • Automatic hopper greasing unit and manual back-up system
  • Safety device on hopper door and hopper grate
  • Remote controlled electric vibrator on hopper grate
  • Aluminium hopper cover
  • Water pump (60 l/min, 30 bar)
  • Water tank capacity 650 l
  • Lights for hopper lighting, LED
  • Metal bin for accessories beside hopper
  • Warning horn
  • Accessories for cleaning and maintenance
  • Declaration of conformity (user and maintenance manual)

Electronic stability control system

  • Sermac Control Stability (SCS - Basic)
Specifications subject to change without prior notice, no responsibility is taken for the correctness of this information.

Download Datasheet

Compila questo modulo per ricevere il link per scaricare il Datasheet.
Ti preghiamo di compilare tutti i campi obbligatori *.
Fill in this form to receive the link to download the Datasheet.
Please fill in all the compulsory fields.

Dealer WebShop


Download Area - Updated


pie blu2020