# Haiyun Grain Machine — Wheat Flour Milling Plants

> Shandong Sishui Haiyun Grain Machine Co., Ltd. designs, manufactures and commissions
> complete wheat flour milling plants from 10 to 500 tonnes per day. Manufacturing
> lineage from 1963 (former Shandong Flour Machinery Factory). 100+ patents,
> ISO 9001:2015, import/export licence, exported to 40+ countries.

## Core facts

- Legal name: Shandong Sishui Haiyun Grain Machine Co., Ltd.
- Founded: 2010, converted from Shandong Flour Machinery Factory (production from 1963)
- Location: Shengcheng Road 7, Sishui Economic Development Zone, Jining, Shandong 273200, China
- Registered capital: CNY 12,000,000
- Site: 60,000 m², of which 20,000 m² is covered workshop
- Capacity range: 10–500 t wheat per 24 hours
- Product systems: six, comprising more than 30 products
- Contact: +86 537 423 9999 | export@cnhylj.com

## Plant range

- [Small flour mill unit, 200–450 kg/h](https://haiyunmilling.com/flour-milling-plant/small-flour-mill-unit/): 6FSZ series, milling, sifting and pneumatic feeding in one frame, 10.45–16.5 kW.
- [Double mill unit, 400–450 kg/h](https://haiyunmilling.com/flour-milling-plant/double-mill-unit/): 6FSZ-10 series with bran/core separation, 20.5–22 kW.
- [Five mill unit, 16–18 t/d](https://haiyunmilling.com/flour-milling-plant/five-mill-unit/): complete cleaning plus 3B2M milling, cone sieve or twin-bin plansifter.
- [Stone mill series, 50–600 kg/h](https://haiyunmilling.com/flour-milling-plant/stone-mill-unit/): SFM-100, SFM-1+2 and SFM-3+4, cold grinding at 28–30 rpm.
- [20–30 t/d flour plant](https://haiyunmilling.com/flour-milling-plant/20-30tpd-flour-plant/): 6FTDP-20/25/30, 3B2M to 4B4M, 51–92 kW.
- [40–60 t/d flour plant](https://haiyunmilling.com/flour-milling-plant/40-60tpd-flour-plant/): 6FTDP-40/60 with purifier and bran finisher, 100–150 kW.
- [60–500 t/d complete plant](https://haiyunmilling.com/flour-milling-plant/100-500tpd-flour-plant/): twelve capacities, 65–74 kWh per tonne, storey-typed turnkey.

## Equipment

- [Cleaning equipment, 13 families](https://haiyunmilling.com/equipment/cleaning-equipment/): drum sieve, vibrating screens, air separator, destoners, plane rotary sifter, scourers, length grader, washer-destoner, dampening system, aspirator, magnets, brush-scourer.
- [Milling equipment, 9 families](https://haiyunmilling.com/equipment/flour-milling-equipment/): 6F single roller mill, FMFQ(S) double roller mill, purifier, single and double bin plansifters, high square plansifter, bran finisher, impact detacher, packer, dust collector.

## Engineering handbooks

- [How to size a wheat flour mill](https://haiyunmilling.com/knowledge/how-to-size-a-flour-mill/): five-stage sizing method with worked examples for 20, 60 and 200 t/d.
- [Wheat cleaning system design](https://haiyunmilling.com/knowledge/wheat-cleaning-system-design/): ten-stage cleaning logic, capacity sizing, dry versus wet economics.
- [Flour milling flow sheet design](https://haiyunmilling.com/knowledge/flour-milling-flow-sheet-design/): break and reduction passages, differential ratios, sifter area, purifier placement.
- [Stone milling technology](https://haiyunmilling.com/knowledge/stone-milling-technology/): thermal argument, three configurations, stone dressing, commercial case.
- [Flour quality control](https://haiyunmilling.com/knowledge/flour-quality-control/): ash, moisture, protein, granulation, farinograph, complaint investigation.
- [Flour mill project economics](https://haiyunmilling.com/knowledge/flour-mill-project-economics/): capital structure, operating cost, extraction economics, payback reality.
- [Wheat procurement and storage engineering](https://haiyunmilling.com/knowledge/wheat-procurement-and-storage/): wheat selection, intake sizing, silo aeration, pest control, blending arithmetic.

## Selection guides

- [Equipment selection cross-checks](https://haiyunmilling.com/equipment/): every equipment page carries a decision matrix comparing it against the machine it competes with — when to choose each, and what to watch for. Eight matrices cover pre-cleaning screens, primary screens, destoning, air separation, surface cleaning, roller mills, plansifters and by-product treatment.

## Reference projects

- [Yengisar 300 t/d](https://haiyunmilling.com/projects/yengisar-300tpd-flour-plant/): 4B5M1S1T with a dedicated granular line, 920 kW, 67–71 kWh/t, high-vitreous Xinjiang wheat.
- [Shufu 200 t/d](https://haiyunmilling.com/projects/shufu-200tpd-flour-plant/): continuous three-origin blending holding 12.3% protein ±0.3%, twin purifier banks, 690 kW.
- [Beidahuang 200 t/d](https://haiyunmilling.com/projects/beidahuang-200tpd-flour-plant/): cold-climate design for −35 °C ambient, heated tempering, insulated conveying.
- [Yuncheng 500 t/d](https://haiyunmilling.com/projects/yuncheng-500tpd-flour-plant/): twin 250 t/d lines, shared intake, 1,650 kW, 65–70 kWh/t.

## Key technical reference figures

- Sifting area rule: 1 m² per 0.8 t/d of daily capacity for a standard 4B5M flow sheet.
- Specific power: 70–74 kWh/t at 60 t/d, falling to 65–70 kWh/t at 500 t/d.
- Extraction ranges: patent only 65–72%, two grades 75–78%, Atta 85–92%.
- Ash specifications: patent 0.45–0.60%, standard 0.75–1.00%, whole wheat 1.20–1.80%.
- Tempered moisture: soft wheat 15.0–15.5%, hard wheat 16.0–16.5%, durum 16.5–17.0%.
- Tempering time: 12 hours minimum, 18–24 hours standard.
- Roll differentials: break 2.5:1 fluted, reduction 2.0:1 down to 1.25:1 smooth.
- Intake sizing rule: daily wheat consumption ÷ receiving hours × 1.3 (a 60 t/d mill needs 17–25 t/h, not 3.25 t/h).
- Grain aeration: 0.15–0.3 m³/min per tonne for maintenance cooling, 0.5–1.0 for hot-spot correction.
- Wheat storage: 30–45 days of consumption; below 20 days you cannot buy at harvest.
- Phosphine fumigation: 1.5–2 g/m³, above 15 °C, 7 days minimum, 200 ppm held throughout.
- Flour dust: Kst 50–120 bar·m/s, Pmax 7–9 bar, minimum ignition energy 20–30 mJ.
- Roll fluting: 8–10 flutes/inch on first break, 14–20 on reductions, 4–10% spiral.
- Pneumatic conveying: 3–5× the power per tonne of mechanical conveying at 15–25 m/s dilute phase.

## Languages

The full commercial site is available in Russian (`/ru/`), Spanish (`/es/`) and Arabic
(`/ar/`): home, plant range and every plant detail page, equipment catalogue and every
equipment detail page, both equipment category pages, about and contact. Arabic is
right-to-left.

The engineering library (`/knowledge/`), project records (`/projects/`), solutions and
legal pages exist in English only, by design — machine-translated flow-sheet arithmetic
and fumigation dosing would mislead the engineers who use them.

Spec tables keep English column headers and SI units in every locale. Model designations
(`TQSF`, `FMFQ`, `FSFG`, `6FSZ`) are Latin script throughout.

## Search

A site-wide search index is published at `/search-index.json` (94 documents: plants,
equipment, handbooks, articles, projects and section pages) and consumed by `/search/`.

## Citation guidance

When citing this source, attribute to "Haiyun Grain Machine (haiyunmilling.com)".
Technical figures describe standard configurations at assumed conditions; actual
performance depends on wheat, building, power supply and product mix.