Concrete Mixer Types — Pan, Single-Shaft and Twin-Shaft Mixers

A concrete mixer is the heart of a batching plant: it turns aggregate, cement, water and additive into homogeneous, compacted concrete through forced mixing. General Makina offers three types — the pan mixer, the single-shaft mixer and the twin-shaft mixer — with an optional planetary configuration. All models are ISO 9001 + CE certified and carry a 1-year warranty.

Working principle

Arms and scraper paddles homogenize the material by forced mixing; discharge is through single or double hydraulic or pneumatic gates. On power loss the gates can be opened manually. Automatic lubrication is standard, with an optional cleaning unit and a maintenance walk platform. Mixing arms and paddles are Hardox; the inner lining is wear-resistant Ni-Hard (bolted, replaceable; optional cast lining); the reducer is planetary (twin-shaft: Dkp Dişsan planetary).

Technical specifications

The overall compacted-concrete range is 0.5-4.5 m³ and motor power runs from 18 to 2×90 kW.

Mixer type comparison

A twin-shaft mixer gives roughly 2-3× the hourly output of a pan mixer; pan/planetary units deliver superior homogeneity for precast; and single-shaft optional dual-drive keeps production running if one drive fails.

Applications

• Twin-shaft: high-tonnage ready-mix, dam and bridge projects.
• Pan/planetary: precast, paving stone, architectural and zero-slump concrete.
• Single-shaft: plants seeking balanced cost and capacity.

Single supplier and TCO

Our mixers are integrated into General Makina batching plants. The Ni-Hard/Hardox wear metallurgy and bolted, replaceable liners lower spare-part and downtime costs, reducing total cost of ownership (TCO) — one point of contact, one accountable party and a matched spare-parts chain.