Skip to main content

Liebherr’s truck-mounted 37 Z4 XXT concrete pump

A truck-mounted concrete pump configured in four sections, Liebherr’s 37 Z4 XXT’s 37m distributor boom in Z-fold design is said to be extremely torsion resistant, and consequently exhibits low-vibration boom movements on the building site. The concrete pipeline on the 37 Z4 XXT is configured close to the boom on the left and right-hand sides, guaranteeing a balanced weight distribution. The pipe bends of the concrete pipeline feature a large radius of 27.5cm ensuring minimal losses in pressure over the le
February 19, 2015 Read time: 2 mins
The Liebherr truck-mounted concrete pump 37 Z4 XXT in operation
A truck-mounted concrete pump configured in four sections, 718 Liebherr’s 37 Z4 XXT’s 37m distributor boom in Z-fold design is said to be extremely torsion resistant, and consequently exhibits low-vibration boom movements on the building site.

The concrete pipeline on the 37 Z4 XXT is configured close to the boom on the left and right-hand sides, guaranteeing a balanced weight distribution. The pipe bends of the concrete pipeline feature a large radius of 27.5cm ensuring minimal losses in pressure over the length of the distributor boom. To minimise the necessity of stockpiling different wear parts, Liebherr predominantly use pipe bends of the same type. Numerous special design details facilitate the replacement of wear parts and optimise servicing.

Liebherr’s patented XXT-narrow support is extremely sturdy and torsionally-resistant. The German firm says it is the only manufacturer on the market to offer this innovative system. The front and rear outriggers are secured directly to the boom pedestal of the distributor boom, whereby the forces are channelled directly into the supports from the boom, without deviation. All four outriggers are pivot-mounted, allowing maximum flexibility and a particularly extensive working range of the distributor boom with narrow supports. This can prove to be a decisive advantage on building sites with restricted access.

The 37 Z4 XXT is equipped with high-performance pump units in three different output sizes, in accordance with respective customer requirements. Liebherr offer pump units featuring maximum flow rates of 125m³/h, 138m³/h and 163m³/h. These powerful Liebherr pump units are renowned for their distinctive smooth running. Smooth changeover of the S-pipe is facilitated by the hydraulic cylinder with end-of-stroke damping.

Chassis from various truck manufacturers may be selected by the customer as an underbody for the truck-mounted concrete pump.

Liebherr offers an extensive range of optional accessories and equipment for the 37 Z4 XXT. This includes, among others, extra storage compartments, an additional diesel tank or an auxiliary access point on the left-hand side to suit all respective customer requirements. A magnetic rotating beacon ensures extra safety and a pneumatic end hose pinch valve prevents continued discharge of the concrete when repositioning the boom.

For more information on companies in this article

Related Content

  • Dowel bar drilling selection poses challenges
    January 11, 2013
    Pneumatic concrete dowel drills have one purpose – to drill holes. While their intended use is easy to recognize, operation of this equipment isn’t quite so simple. In fact, it’s a bit of a science. That’s not to say they’re difficult to operate. But there are certain best practices and processes to keep in mind for proper drill operation, whether it’s an on-grade, slab-rider or equipment-mounted model. Operators who adopt these guidelines and implement them on every job are rewarded with better performance
  • Cifa focuses on new technology for 2014
    March 11, 2014
    In 2014 Zoomlion-owned Cifa plans to manufacture a further 15 of its innovative hybrid Energya 8 and 9 plug-in truck mixer prototypes to add to its two existing models. The globally renowned concrete equipment sector firm also aims to sell the first of these new plug-in truck mixer models next year. Among the new machines and equipment resulting from a €2 million-a-year R&D investment in Cifa and Zoomlion products over the last five years, the Energya 8 and 9 models, the latter of which was launched at bau
  • Cifa focuses on new technology for 2014
    March 11, 2014
    In 2014 Zoomlion-owned Cifa plans to manufacture a further 15 of its innovative hybrid Energya 8 and 9 plug-in truck mixer prototypes to add to its two existing models. The globally renowned concrete equipment sector firm also aims to sell the first of these new plug-in truck mixer models next year. Among the new machines and equipment resulting from a €2 million-a-year R&D investment in Cifa and Zoomlion products over the last five years, the Energya 8 and 9 models, the latter of which was launched at bau
  • Doosan launches 5tonne DX57W-5 stage 3B compliant wheeled excavator
    February 10, 2016
    Doosan Construction Equipment’s new 5 tonne DX57W-5 Stage IV compliant wheeled excavator complies with the latest Stage 3B emission regulations. The DX57W-5 has increased power from the 42.5kW Doosan D24 4-cylinder engine which meets Stage 3B emission regulations without the need for a diesel particulate filter (DPF), through the use of cooled exhaust gas recirculation (EGR) and diesel oxidation catalyst (DOC) after-treatment technologies. Factory tests show a 15% increase in fuel efficiency, depending