Hamm’s ‘new generation’ of tandem rollers

By Andy Brown04 January 2023

Hamm has introduced the HX series, a new flagship for the company

Hamm has introduced the HX series, with the company calling it a new generation of pivot-steered tandem rollers.

Replacing the previous DV+ series, Hamm says it has intuitive operation with Easy Drive, high performance data, comfort features and sustainable operation, as well as the ‘Smart Compact’ digital compaction assistant.  All models are available in countries with the EPA Tier 4/EU Stage V emissions regulation.

The new flagship models are designed for asphalt compaction, the HX 70i model (7 t/55.4 kW) and HX 90i (9 t/74.4 kW) and can achieve high surface outputs on large construction sites.

A foundation for high compaction quality is intelligent drive control with automatic reversing. Hamm says that this, in combination with the electrically adjustable seat operating unit, “guarantees quality and comfort”.

The seat turns automatically in the direction of travel when reversing, which is said to be unique in the market.

The Smart Compact compaction assistant can be used in the rollers of the HX series. The system decides compaction automatically and individually for each drum: whether to compact with vibration and big or small amplitude, with oscillation, or statically. The driver only has to enter whether a base, binder or asphalt surface course is to be compacted.

The assistant evaluates data about the condition of the asphalt, optionally incorporating local weather data from an integrated weather station.

Hamm says that it is the first manufacturer in the world to automate the separate setting of both drums and is therefore raising process reliability and quality of the compaction and surface.

The HX series rollers are available with 7 t (HX 70i) and 9 t (HX 90i) operating weight. Among the nine total versions are models with two vibrating roller drums, an oscillation and an vibrating roller drum, as well as combination rollers.

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