Hand-guided, self-propelled 2-component cold plastic machine 2K50A / 2K60A

The Hofmann 2K50A / 2K60A is a hand-guided self-propelled two-component cold plastic (2K) screed laying machine for agglomerate, smooth flat line, and profiled road markings. The 2K50A covers line widths from 10 to 50 cm and weighs approximately 170 kg with dimensions of 1,500 mm (L) x 1,000 mm (W) x 1,200 mm (H). The 2K60A is a special extended variant covering up to 60 cm in agglomerate and smooth flat line configuration, weighing approximately 190 kg with dimensions of 1,700 mm (L) x 1,100 mm (W) x 1,300 mm (H). Both variants are powered by a single-cylinder Honda petrol engine with 120 cm³ displacement, air-cooled, delivering 2.6 kW at 3,600 rpm. The glass bead container holds 20 liters, adjustable to 25 cm or 50 cm spread width. The standard 2K50A configuration includes a spike roller (Stachelwalze) for agglomerate markings and a universal inlet screed box with stepless width adjustment. The 2K material is used at a 98:2 mixing ratio (base component to hardener, pre-mixed before application) with a working time of approximately 10 to 15 minutes depending on temperature.

The universal inlet screed box accepts pre-mixed 2K cold plastic material and deposits it onto the road surface through the selected screed shoe in a controlled layer. The spike roller attachment produces the textured agglomerate surface profile by pressing the material into the road surface during laying, creating the raised-aggregate texture that characterizes high-friction agglomerate markings. Application changeover between agglomerate, smooth flat line, 90° cross-profile, and tactile guidance configurations takes a maximum of 4 minutes on the same machine body — making the 2K50A and 2K60A highly versatile for contractors applying multiple marking types within the same program. Agglomerate material application rates range from approximately 2.5 to 3.0 kg/m², with up to 3.8 kg/m² possible for heavier material specifications.

The Hofmann 2K50A / 2K60A is deployed by road marking contractors for pedestrian crossing agglomerate markings, 60 cm full-width zebra crossing stripes (2K60A), smooth flat 2K cold plastic line marking, 90° cross-profile highway and urban road markings, tactile guidance path markings for the visually impaired, and stochastic surface texture markings — wherever high-durability, high-friction two-component MMA cold plastic markings are specified over standard paint or thermoplastic marking materials.

Leader Infra supplies both the standard and extended width variants of this self-propelled 2K cold plastic screed layer — delivering agglomerate, smooth flat, cross-profile, and tactile guidance marking capability across 10 to 60 cm line widths in Honda-powered machines of 170 to 190 kg suited for pedestrian crossing, intersection, and high-durability road marking programs.

FAQ — What is the practical difference between agglomerate and smooth flat line 2K cold plastic markings on road surfaces? Agglomerate markings apply the 2K cold plastic material with a spike roller that presses it into the road surface, leaving a textured raised-aggregate upper surface — this texture provides significantly higher skid resistance underfoot and under vehicle tyres, making it the standard specification for pedestrian crossings, cycle lane transitions, and high-friction zones. Smooth flat line markings apply the material without the spike roller, producing a flat, glossy surface suited for carriageway line markings where high applied film thickness and long service life are required without textured surface profile.