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
January 6, 2017 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

  • Wirtgen is increasing its concrete paving range
    January 6, 2017
    Wirtgen continues to develop its slipformer line-up with the addition of three new SP80 series models, each of which is built along modular lines and available in two versions. These machines are the SP81 and SP81i, the SP82 and SP82i and Sp84 and SP84i and are said to be designed to suit a wide range of applications, offering high-precision paving and ease of use.
  • Wirtgen is increasing its concrete paving range
    February 4, 2013
    Wirtgen continues to develop its slipformer line-up with the addition of three new SP80 series models, each of which is built along modular lines and available in two versions. These machines are the SP81 and SP81i, the SP82 and SP82i and Sp84 and SP84i and are said to be designed to suit a wide range of applications, offering high-precision paving and ease of use.
  • Liebherr extends rough terrain crane range
    April 9, 2018
    Unveiled at ConExpo 2017, Liebherr has extended its mobile crane product range with an additional series of rough terrain cranes in the 90tonne and 100tonne classes. The new rough-terrain crane LRT 1090-2.1 is said to feature high performance, safety and comfort. The VarioBase (variable support base) developed by Liebherr, which allows each individual outrigger beam to be extended to optional lengths, is standard on the LRT cranes. The crane model is powered by a Cummins diesel engine which develops 194kW
  • New Rammer hammer for extreme use
    January 6, 2017
    Sandvik launched a new hydraulic hammer under its Rammer brand at bauma 2014 in Shanghai, China. The 3,750kg Rammer 4099 PRO is designed for carriers in the 34-55 tonne weight class. Based on the field-proven Rammer 4099 the new model is for extreme operating conditions such as underground. It has a sealed housing to prevent ingestion of dust and dirt so prolonging the life of the hammer and tool. There are sealed through apertures for hydraulic hoses, water, air and grease. It has been designed with