Häny grouting plants

Häny grouting plants (Injecto-Compact, IC) are compact mixing and grouting plants assembled from Häny's standard components: a colloidal mixer (HCM), an agitator (HRW) and a grout pump (ZMP), mounted on a common frame with a central lifting point. The plants are supplied in several sizes, from IC 310/311/325 via IC 650 to IC 1100 and IC 1400, with a capacity of 1.5–8 m³/h at up to 100 bar and a nominal power of 9.1–39.8 kW. For higher output and better quality control, the plants are also available in semi-automatic and fully automatic versions.

The IC 650/710 model combines a mixer with 260 litres of usable capacity and a circulation capacity of 1400 l/min, a 350-litre agitator and the ZMP 710 grout pump. According to Häny's product portfolio, these are the HCM 300 and HRW 350. The plant delivers 5 m³/h at a w/c ratio of 1, with a maximum pressure of 100 bar and a maximum aggregate size of 8 mm. The pump module is single-acting and can be supplied with a piston diameter of 85, 105 or 120 mm. The electrical connection is 3x 400/460 V, 50/60 Hz, with a nominal power of 17.5/20.0 kW. It weighs approx. 1180 kg and measures 2365 x 1800 x 1737 mm (L x W x H).

Typical applications are grouting of anchors, soil nails and prestressing tendons, as well as sleeve-pipe, rock and contact grouting. The plant is also used to mix and pump bentonite suspensions for pipe jacking and microtunnelling. Regardless of the pressure conditions, the suction stroke is always carried out at high speed, so that the valves are flushed and clogging is avoided. The control system is PLC-based with a stroke counter, lockable main switch and emergency stop, and has on/off switches for the mixer, agitator and pump. Manual pressure and flow control plus an oil level and temperature sensor are supplied as standard. Optional equipment includes remote control with a 50 m cable, P/Q recording, an additional mixing unit (recommended at w/c ratios below 0.45), an automatic 1" water meter, a pressure relief valve between pump and agitator, and a low-pressure cartridge.