Häny products

Häny AG in Jona, Switzerland, has supplied mixing and grouting plants for cement-based suspensions for almost 90 years. The range includes colloidal mixers (HCM), agitators (HRW), grout pumps (ZMP) and compact grouting plants (IC), as well as fully automatic plants (FAIC), container-based mixing plants (MCM) and recording systems for pressure and flow (DPV-H). The equipment is used for ground improvement, anchoring, sealing, pipe jacking, microtunnelling, directional drilling, diaphragm walls and backfilling in tunnels.

The HCM 100–2500 colloidal mixers have a mixing capacity of 2–40 m³/h and a circulation capacity of 540–4800 l/min, with usable capacities from 100 to 2500 litres. The HRW 150–3000 agitators hold 150–3000 litres and act as storage tanks between mixer and pump. The grout pumps in the ZMP series are low-wear piston pumps with pressures from 1 to 100 bar and capacities from 1.5 to 13 m³/h, available as single-, double- and triple-acting units, while the ZMP 936 triplex pump delivers up to 1000 l/min at 40 bar. All the pumps have pressure and flow control valves, and standard gravity valves let through aggregate up to 8 mm.

The IC 310–1400 compact grouting plants combine mixer, agitator and pump on one frame with a central lifting point and deliver 1.5–8 m³/h at up to 100 bar. Fully automatic plants with screw feed of dry components, a water tank and a high-precision weighing system produce 5–12 m³/h with a dosing accuracy better than ±3%, and the MCM 2000–30000 container plants deliver 12–90 m³/h. Recording systems with a display for flow and pressure can be supplied for pumps, compact plants and automatic plants. According to the manufacturer, Häny machines are characterised by easy operation, easy cleaning, robust construction and very low maintenance and service costs.