China manufacturer of traditional stone mills (石磨) based on TianGong KaiWu technology. Both hand-cranked and water-powered configurations. Authentic granite stone grinding wheels, timber frame construction. For heritage museums, agritourism sites, organic farms, and traditional craft experience centers. OEM custom manufacturing.
| Warranty | Stone wheels: 20 years | Wood structure: 5 years | Bearings: 2 years |
| Delivery | Hand-cranked models: 15-30 days | Water-powered models: 30-60 days |
| MOQ | 1 unit (custom welcome) |
| Applications | Heritage museums, agritourism experience centers, organic farms, village museums, traditional craft workshops, cooking experience venues, rural tourism attractions, educational farms |
Heritage museums, agritourism experience centers, organic farms, village museums, traditional craft workshops, cooking experience venues, rural tourism attractions, educational farms
Traditional Chinese stone mills were used for: wheat flour (面粉), corn (玉米), barley, millet, rice, soybeans (for soymilk or tofu), herbs and spices. The fine grinding quality produces superior texture compared to steel roller mills — particularly valued for traditional noodle making and soy milk production.
Hand-cranked mills: operated by 1-2 people using a wooden crank handle. Suitable for demonstration purposes and small-batch production (5-15kg/hour). Water-powered mills: use a wooden water wheel or paddle to drive the grinding stone. Suitable for continuous production (50-200kg/hour). Both use the same stone grinding technology.
Daily: brush clean the stone grinding faces after each use to remove flour buildup. Weekly: check the trunnion bearings (top and bottom) and re-grease if needed. Annual: check the stone gap (adjustable via the grain feeding hopper) and re-level the stones if grinding efficiency decreases. With proper use and maintenance, the stone wheels last 20+ years.
Yes. We use natural granite millstones sourced from proven quarries. Granite is completely food-safe and has been used for grain grinding for thousands of years. The stone surface is dressed (grooved) in a traditional radial pattern that promotes even flour distribution. No chemical treatments are applied to the grinding surfaces.
Yes. Our largest water-powered models are rated for continuous commercial production up to 200kg/hour of flour. For restaurants and specialty food producers, the traditional stone-grinding process produces flour with superior flavor and texture that commands a premium price in the market.
Select a level, covered location with access for loading grain. For water-powered mills: ensure continuous water flow of at least 5L/second with a head height of at least 1m. Prepare a reinforced concrete foundation to support the mill's weight and vibration.
Assemble the mill frame on the foundation, ensuring it is level. Install the bottom millstone on the central pivot (trunnion). The stone face should be checked for levelness using a spirit level. Install the grain hopper above the stones.
New stones require initial dressing: use a steel dresser to cut the radial grooves into the stone face. The pattern should be from center outward, with grooves 2-3mm deep and 5mm wide. This dressing creates the channels through which flour falls as it is ground.
Install the water wheel or paddle assembly. Connect to the mill's drive shaft using a timber gear or belt drive. The gear ratio determines the millstone RPM (typically 80-120 RPM for grain grinding). Test the water flow and adjust the paddle depth for optimal power transfer.
Begin with a small amount of grain to test the grinding gap. The ideal gap is when the grain is crushed and flattened but not completely pulverized. Adjust the hopper gate to control feed rate. The flour should emerge evenly from the stone rim. Adjust the stone gap until the desired texture is achieved.
Operate the mill at steady speed — variations in RPM affect flour quality. After each use, clean the stone faces thoroughly with a stiff brush. Never leave ground grain in the hopper or on the stones as it will harden and affect performance. Cover the mill when not in use to prevent dust and insect contamination.
Contact us with your project requirements — we respond within 2 hours during business hours.
Email: 858069858@qq.com | Tel: +86-138-8336-6528