On this page
- Xinjiang 1T/D Walnut Oil Refining & Winterization Production Line
- Project Overview
- Raw Material
- Process Flow
- Main Equipment Configuration
- Technical Parameters
- Utilities & Auxiliary Requirements
- Winterization (Dewaxing) System
- Finished Oil Quality
- Advantages of This Production Line
- Application Scope
- Project Value
- Conclusion
- 1T/D National Standard Grade I Walnut Oil Refining Equipment
Xinjiang 1T/D Walnut Oil Refining & Winterization Production Line
Project Overview
This project is a 1 ton per day (1T/D) walnut oil refining and winterization automatic production line, designed and manufactured by Shandong Shengshi Hecheng Machinery Factory.
The production line strictly follows Chinese National Standard (GB) for edible oil processing, aiming to produce high-quality refined walnut oil with stable quality, low loss, and high efficiency.
This line is suitable for medium and small edible oil factories, agricultural processing enterprises, and regional oil processing projects.
Raw Material
- Raw oil type: Crude walnut oil
- Oil condition: Mechanically pressed crude oil
- Impurity content: According to GB standard crude oil requirements
Process Flow
The complete refining and winterization process includes:
- Degumming
- Neutralization (Deacidification)
- Decolorization (Bleaching)
- Deodorization
- Winterization (Dewaxing)
- Final Filtration
- Finished Oil Storage
Main Equipment Configuration
The whole line adopts fully automatic control, and includes:
- Crude oil tank
- Heating system
- Degumming reactor
- Alkali refining reactor
- Bleaching tank
- Vacuum deodorization system
- Plate filter / leaf filter
- Winterization tank
- Cooling system
- Finished oil tank
- Automatic control cabinet
Technical Parameters
| Item | Specification |
|---|---|
| Processing capacity | 1 ton/day |
| Raw material | Crude walnut oil |
| Final oil | Refined walnut oil |
| Automation level | Fully automatic |
| Operation mode | Continuous / Batch |
| Control system | PLC automatic control |
Utilities & Auxiliary Requirements
Steam
- Saturated steam pressure: 1.0 MPa
Cooling Water
- Pressure: 0.3 MPa
- Requirements: No corrosion, no suspended solids, clean industrial cooling water
Power Supply
- Voltage: 380V / 50Hz
- Installed power: According to final configuration
Compressed Air
- Pressure: 0.6 MPa
- Used for pneumatic valves and control system
Winterization (Dewaxing) System
Walnut oil contains natural wax and solid components.
The winterization system is used to:
- Reduce wax content
- Improve oil transparency
- Prevent low-temperature turbidity
The system adopts controlled cooling + filtration, ensuring:
- Clear appearance
- Stable quality
- No crystallization at low temperature
Finished Oil Quality
After refining and winterization:
- Color: Bright golden yellow
- Odor: Natural walnut flavor, no off-smell
- Acid value: Meets GB edible oil standard
- Transparency: Clear and stable
- Shelf life: Significantly extended
Advantages of This Production Line
1. High Automation
- PLC control
- One-button operation
- Low labor requirement
2. Stable Product Quality
- Standardized refining process
- Consistent oil quality
3. Low Oil Loss
- Optimized process design
- High oil recovery rate
4. Energy Saving
- Efficient heat exchange
- Optimized steam consumption
5. Easy Operation & Maintenance
- Modular design
- Easy cleaning and maintenance
Application Scope
This production line is suitable for:
- Walnut oil processing plants
- Specialty edible oil factories
- Agricultural cooperatives
- Regional oil refining centers
It can also be adapted for:
- Almond oil
- Hazelnut oil
- Peanut oil
- Sesame oil
- Sunflower oil
- Other high-value edible oils
Project Value
This 1T/D walnut oil refining project helps customers:
- Upgrade crude oil to high-value refined oil
- Improve product market competitiveness
- Increase profit margin
- Meet food safety standards
- Expand branded edible oil business
Conclusion
The Xinjiang 1T/D Walnut Oil Refining & Winterization Production Line is a mature, stable, and commercially proven solution for edible oil processing enterprises.
It combines:
high automation + stable quality + low energy consumption + strong adaptability
Making it an ideal choice for small and medium edible oil investment projects.
1T/D National Standard Grade I Walnut Oil Refining Equipment
Equipment Configuration List
| No. | Equipment Name | Model | Qty | Power (kW) | Unit Price (10,000 RMB) | Total Price (10,000 RMB) | Remarks |
|---|---|---|---|---|---|---|---|
| 1 | Degumming Tank | LYY800×1700 | 1 | 0.54 / 0.75 | 2.4 | 2.4 | Dual-speed motor |
| 2 | Deacidification Tank | LYY800×1700 | 1 | 0.54 / 0.75 | 2.1 | 2.1 | Dual-speed motor |
| 3 | Water Washing Tank | LYY800×1700 | 1 | 0.75 | 2.0 | 2.0 | Stainless steel |
| 4 | Bleaching Tank | LYY800×1700 | 1 | 0.75 | 2.8 | 2.8 | Stainless steel |
| 5 | Deodorization Tank | LYY800×1700 | 1 | — | 3.4 | 3.4 | Stainless steel |
| 6 | Alkali Solution Tank | 500×500 | 1 | — | 0.45 | 0.45 | Stainless steel |
| 7 | Salt Solution Tank | 600×600 | 1 | 2 | 0.48 | 0.48 | Stainless steel |
| 8 | Bleaching Earth Tank | 430×430 | 1 | — | 0.55 | 0.55 | Stainless steel |
| 9 | Thermal Oil Heater | DRL-100 | 1 | — | 2.8 | 2.8 | 100,000 kcal |
| 10 | Thermal Oil Pump | DR-50-1.2 | 1 | 3 | 0.85 | 0.85 | Q235 carbon steel |
| 11 | Steam Generator | DN550-8 | 1 | — | 1.3 | 1.3 | Carbon steel |
| 12 | Level Gauge | YW-1100 | 1 | — | 0.21 | 0.21 | Quartz glass |
| 13 | Gas-Liquid Separator | 400×360 | 1 | — | 0.18 | 0.18 | Stainless steel |
| 14 | Gear Oil Pump | KCB-83.3 | 2 | 1.5 × 2 | 0.40 | 0.40 | Q235 carbon steel |
| 15 | Water Ring Vacuum Pump | 2BV-5111 | 1 | 5.5 | 1.0 | 1.0 | Q235 carbon steel |
| 16 | Plate Filter Press | BK-350-3 | 1 | 0.75 | 0.87 | 0.87 | Polypropylene |
| 17 | Intermediate Oil Tank | 1000×650 | 1 | — | 0.27 | 0.27 | Stainless steel |
| 18 | Pipelines, Instruments & Valves | High-temperature type | 1 set | — | 1.6 | 1.6 | Stainless steel |
| 19 | Fatty Acid Trap | 300×400 | 1 | — | 0.22 | 0.22 | Stainless steel |
| 20 | Water Circulation Cooler | 800×800 | 1 | — | 0.28 | 0.28 | Carbon steel |
| 21 | Electrical Control Cabinet | 1200×600 | 1 | — | 0.63 | 0.63 | Carbon steel |
| 22 | Working Platform | 7000×1300 | 1 | — | 3.0 | 3.0 | Carbon steel |
Total Summary
- Total Installed Power: 16 kW
- Total Equipment Investment: 277,900 RMB (≈ 27.79 万元)
- Processing Capacity: 1 ton/day
- Final Oil Standard: China National Grade I Walnut Oil
System Features
This 1TPD walnut oil refining system is designed to meet China National Standard Grade I edible oil requirements, featuring:
- Complete degumming, deacidification, bleaching and deodorization process
- Stainless steel contact parts for food safety
- Low energy consumption and compact layout
- Suitable for small oil mills and premium walnut oil brands
1T/D Walnut Oil Winterization (Dewaxing) Equipment List
(China National Standard Grade I)
Equipment Configuration
| No. | Equipment Name | Model | Qty | Power (kW) | Unit Price (10,000 RMB) | Total Price (10,000 RMB) | Remarks |
|---|---|---|---|---|---|---|---|
| 1 | Crystallization Tank | LYY800×1700 | 1 | 0.75 | 3.2 | 3.2 | Stainless steel |
| 2 | Crystal Aging Tank | LYY800×1700 | 1 | 0.75 | 3.2 | 3.2 | Stainless steel |
| 3 | Buffer Tank | LYY800×1700 | 1 | 0.75 | 2.9 | 2.9 | Stainless steel |
| 4 | Winterization Filter Press | DL450 – 10 m² | 1 | 1.1 | 1.5 | 1.5 | Polypropylene |
| 5 | Intermediate Oil Tank | 1200×800 | 1 | — | 0.67 | 0.67 | Stainless steel |
| 6 | Air Compressor | KY-2000A | 1 | 1.1 | 0.43 | 0.43 | Carbon steel |
| 7 | Oil Transfer Pump | F81-0204S1 | 1 | 1.5 | 0.37 | 0.37 | Stainless steel |
| 8 | Plunger Oil Pump | DFW32-4 | 1 | 1.5 | 0.46 | 0.46 | Stainless steel |
| 9 | Refrigeration Unit | AC-21 (3 HP) | 1 | 3 | 2.7 | 2.7 | Carbon steel |
| 10 | Wax Slurry Oil Tank | 1000×800 | 1 | — | 0.57 | 0.57 | Stainless steel |
| 11 | Instruments & Pipelines | Seamless pipes | 1 set | — | 1.1 | 1.1 | Stainless steel |
| 12 | Electrical Control Panel | 800×600 | 1 | — | 0.26 | 0.26 | Carbon steel |
| 13 | Operation Platform | 4500×1300 | 1 | — | 2.6 | 2.6 | Carbon steel |
Total Summary
- Total Installed Power: 11 kW
- Total Investment: 199,600 RMB (≈ 19.96 万元)
- Processing Capacity: 1 ton/day
- Function: Winterization / Dewaxing for premium walnut oil
What Is Winterization (Dewaxing)?
Winterization is a low-temperature purification process used to remove waxes, high-melting-point fats and turbidity substances from edible oils.
For walnut oil, winterization ensures:
- Clear appearance at low temperature
- No turbidity or crystallization in storage
- Improved sensory quality
- Compliance with premium edible oil standards
Winterization System Features
This 1TPD walnut oil winterization system includes:
- Controlled crystallization and crystal aging tanks
- Refrigeration cooling system for low-temperature control
- High-efficiency filter press for wax separation
- Fully stainless steel oil-contact parts
- Compact structure, low energy consumption
Walnut Oil Refining & Winterization Process Flow
Step 1 – Crude Walnut Oil Heating
Crude walnut oil is heated to 90°C to prepare for degumming.
Step 2 – Degumming
- Add phosphoric acid into Mixer 1
- Phospholipids and gums are removed
Step 3 – Neutralization
- Add alkali solution into Mixer 2
- Free fatty acids are neutralized
- Centrifuge 1 separates soapstock
Step 4 – Water Washing
- Add hot water into Mixer 3
- Centrifuge 2 removes wastewater
- Clean oil phase obtained
Step 5 – Vacuum Drying
- Moisture is removed under vacuum
- Dry refined oil obtained
Step 6 – Bleaching (Key Control Point ★)
- Heat oil to 100–110°C
- Add bleaching earth & activated carbon
- Perform vacuum bleaching
Step 7 – Filtration
- Use fine filter press
- Remove spent bleaching earth
- Clarified oil obtained
Step 8 – Deodorization
- Preheat oil with indirect steam
- Inject direct steam under vacuum
- Remove odor and volatile substances
Step 9 – Condensation & Vacuum System
- Vapors enter condenser
- Fatty acids collected in trap
- Vacuum maintained by vacuum pump & cooling tower
Step 10 – Cooling
- Deodorized oil is cooled
- Ready for winterization or storage
Step 11 – Winterization (Dewaxing)
- Oil is cooled in crystallization tanks
- Wax crystals formed and aged
- Filtered by winterization filter press
Step 12 – Wax Separation
- Wax cake separated
- Clear winterized oil obtained
Step 13 – Storage & Packaging
- Finished walnut oil stored in tanks
- Filling and packaging
- Product warehousing
Final Products
- Refined Walnut Oil (Grade I)
- By-products: Soapstock, fatty acids, wax cake
Key Control Point ★
The bleaching and temperature control stage is the core quality control point of the whole refining process.
Quality Specifications of Grade I Walnut Oil
(China National Standard)
Characteristic Parameters of Walnut Oil
| Item | Range | Item | Range |
|---|---|---|---|
| Refractive Index (n20) | 1.467 – 1.482 | Relative Density (d) | 0.902 – 0.929 |
| Iodine Value (g I/100g) | 140 – 174 | Saponification Value (mg KOH/g) | 183 – 197 |
| Unsaponifiable Matter (g/kg) | ≤ 20 | Fatty Acid Composition (%) | — |
Fatty Acid Profile
| Fatty Acid | Range (%) |
|---|---|
| Palmitic Acid (C16:0) | 6.0 – 10.0 |
| Palmitoleic Acid (C16:1) | 0.1 – 0.5 |
| Stearic Acid (C18:0) | 2.0 – 6.0 |
| Oleic Acid (C18:1) | 11.5 – 25.0 |
| Linoleic Acid (C18:2) | 50.0 – 69.0 |
| Linolenic Acid (C18:3) | 6.5 – 18.0 |
Quality Specifications of Crude Walnut Oil
| Item | Limit |
|---|---|
| Moisture & Volatile Matter (%) | ≤ 0.20 |
| Insoluble Impurities (%) | ≤ 0.20 |
| Acid Value (mg KOH/g) | ≤ 4.0 |
| Peroxide Value (mmol/kg) | ≤ 10.0 |
| Solvent Residue (mg/kg) | ≤ 100 |
Interpretation of Quality Indicators
Grade I walnut oil is characterized by a high content of unsaturated fatty acids, especially linoleic acid (C18:2) and linolenic acid (C18:3), which account for more than 60% of total fatty acids.
The refining process must strictly control:
- Acid value
- Peroxide value
- Moisture and impurities
to ensure the final product meets food-grade safety and international edible oil standards.
Clients case
Filling & Packaging Line Equipment Quotation
Equipment List
| No. | Equipment Name | Configuration | Price (RMB) |
|---|---|---|---|
| 1 | GCP-8 Fully Automatic Linear Flow Meter Filling Machine | 1L–5L | 41,000 |
| 2 | DJ-2 Bottle Inspection Lamp | — | 300 |
| 3 | ZFW-1 Automatic Capping & Sealing Machine | — | 24,000 |
| 4 | USL-152 Conveyor Line | — | 1,100 / meter × 18 |
| 5 | UD-55 Power Head | — | 3,500 / unit × 3 |
| 6 | ZTB-2 Labeling Machine | — | 51,000 |
| 7 | ZDM-30 Laser Coding Machine | — | 25,500 |
| 8 | ZTX Manual Packing Table | — | 4,500 |
| 9 | JF56-3 Carton Sealing Machine | — | 3,400 |
Total Investment:
179,000 RMB
Technical Specifications
GCP-8L Automatic Filling Machine
1. Main Specifications:
- Production capacity: 1500 bottles/hour
- Filling accuracy: ≤ ±5 ml / 500 ml
- Overall dimensions: 1800 × 1100 × 2300 mm
2. Features:
- Filling volume can be adjusted online, suitable for multiple product types.
- Non-contact cylindrical solid filling system for the liquid outlet valve.
- Control panel made of 5 mm thick PVC board, elegant and durable.
- Safety doors embedded with transparent acrylic glass for visibility.
- Machine cover made of 5 mm thick PVC board.
3. Main Advantages:
- High filling speed with no dripping, ensuring product quality.
- Filling valves made of special PP material, CNC machined; key components use POM (polyoxymethylene), ensuring long service life.
- Adjustable filling range: 200 ml – 500 ml.
- Frame and guard plates made of high polymer material.
4. Main Electrical Components:
- Low-voltage electrical components: Delixi brand.
- Frequency inverter: Xinje brand.
GCP-8 Fully Automatic Linear Flow Meter Filling Machine
Application Scope
Suitable for filling various free-flowing liquids such as:
- Edible oil
- Alcoholic beverages
- Drinks and beverages
Especially suitable for walnut oil, olive oil, sunflower oil, peanut oil.
Main Features
- Fully automatic intelligent system The machine adopts photoelectric sensors with electric-pneumatic control. A full-color touch screen HMI allows users to set filling volume and number of filling heads. One-button operation for the entire filling process.
- Food-grade stainless steel construction All material contact parts are made of stainless steel, fully compliant with food hygiene standards.
- Flow meter filling principle Ensures accurate filling and prevents overflow. Anti-drip filling nozzles guarantee clean and hygienic filling.
Unique Advantages
1. Advanced Intelligent Control System
Equipped with PLC system.
The filling volume can be set directly on the touch screen.
The system automatically adjusts to reach the target volume.
All operations, monitoring and diagnostics are completed on the HMI.
2. Stable Filling & Refill Separation Design
The filling process and liquid replenishment process are separated.
This avoids instability commonly found in float-type filling systems.
3. Automatic Small Bottle Positioning
Special bottle-neck positioning device ensures precise alignment between bottle mouth and filling nozzle, especially for small glass bottles.
4. Wide Application & Easy Adjustment
Suitable for most bottle shapes, including irregular bottles.
No need to change star wheels or turntables like rotary filling machines.
5. Fully Enclosed Hygienic Structure
The entire machine adopts a closed filling design, meeting national food safety and hygiene standards.
GCP Series Technical Parameters
| Model | GCP-4 | GCP-8 | GCP-12 |
|---|---|---|---|
| Filling Heads | 4 | 8 | 12 |
| Filling Volume | 100 – 10,000 ml | ||
| Production Capacity (bottles/hour) | 600–800 | 800–1000 | 1000–1500 |
| High-Speed Mode Capacity | — | 1500–2200 | 1800–2600 |
| Filling Accuracy | ≤ 0.2% | ||
| Power Supply | 50/60Hz, 3N-380V ±10% | ||
| Power Consumption | 0.75 – 7.5 kW | ||
| Air Pressure | 0.5 – 0.8 MPa | ||
| Working Pressure | 0.6 – 0.7 MPa |
Typical Application for Walnut Oil Project
This filling line is specially suitable for high-value edible oils, such as:
- Refined walnut oil
- Cold pressed walnut oil
- Organic nut oils
It completes the final stage of the turnkey walnut oil processing project, from crude oil to finished bottled product.
GCP Series Technical Parameters
ZFW-1 Automatic Capping & Sealing Machine
Overall dimensions: 1100 × 890 × 2000 mm
Main Features:
- Suitable for bottle caps with diameters from 10 mm to 100 mm, overcoming the limitation of traditional capping machines that require one capping head per cap type.
- Innovative design with easy operation and adjustment.
- Maximum production speed: up to 38 bottles/minute.
- Suitable for both standalone operation and integrated production lines.
When using in semi-automatic mode, the operator only needs to place the cap on the bottle mouth. As the bottle moves forward, the cap is automatically tightened by four rotating heads.
The machine can be upgraded to a fully automatic capping system by adding an automatic cap feeding system. Available options include:
- Elevator type
- Inclined plate type
- Vibratory type These systems can be selected according to actual production requirements.
ZFW-1 Automatic Capping & Sealing Machine
Application & Scope
The ZFW-1 capping machine is a fully automatic metal screw cap sealing machine (also known as anti-theft cap machine).
It is designed for sealing QB654-75 threaded glass bottles, mainly for LB28-20 cylindrical bottle mouths, widely used in:
- Edible oil bottles
- Alcohol bottles
- Beverage bottles
Bottle & Cap Matching Requirements
- The clearance between cap inner diameter and bottle outer diameter should be 0.10 – 0.15 mm
- The height of the inner gasket inside the cap should be 0.3 – 0.5 mm higher than the bottle mouth
Proper bottle-cap matching ensures stable sealing quality and anti-leak performance.
Technical Parameters
| Item | Specification |
|---|---|
| Production Capacity | 1500 bottles/hour |
| Number of Capping Heads | 1 head |
| Speed Control | Frequency inverter (VFD) |
| Motor Power | 0.55 kW |
| Machine Dimensions (L×W×H) | 1300 × 986 × 1825 mm |
| Conveyor Height | 850 mm |
| Machine Weight | 800 kg |
Applicable Bottle Specifications
| Item | Range |
|---|---|
| Bottle Diameter | 60 – 90 mm |
| Bottle Height | 150 – 300 mm |
| Bottle Quality Standard | QB655-75 glass bottle standard |
| Bottle Neck Type | QB654-75 LB30-20 / LB28-20 threaded bottle mouth |
Recommended Application for Walnut Oil
The ZFW-1 capping machine is highly suitable for:
- Refined walnut oil bottles
- Premium edible oil packaging
- Glass bottle screw cap sealing
It ensures:
- Tight and uniform sealing
- Anti-theft cap structure
- High production stability
- Food-grade packaging safety
The ZFW-1 automatic capping machine is an ideal solution for walnut oil filling and packaging lines, ensuring reliable sealing quality for high-value edible oils.
ZFW-1 automatic capping machine
ZW1 Series Conveyor line
ZTB-2 Automatic Labeling Machine
Main Technical Parameters:
- Labeling speed: 20–100 pcs/min (depending on product and label size)
- Conveyor speed: 0–20 m/min (adjustable)
- Applicable product size:
- Length: 50–200 mm
- Width: 30–200 mm
- Height: 50–300 mm
- Label roll inner diameter: Ø76 mm
- Labeling accuracy: ±1 mm (excluding packaging and label errors; special-shaped bottles subject to actual testing)
- Label roll outer diameter: ≤ Ø350 mm
- Label width: 20–130 mm
- Label length: 10–200 mm
- Power supply: 220V / 50Hz, 1.5 kW
- Machine dimensions: 2400 × 850 × 1600 mm
ZTB-2 Automatic Labeling Machine
ZTB-2 Speed control power head
ZDB-30 Automatic Laser Marking Machine
Automatic Cartoning Machine
Mechanical Parameters:
- Overall dimensions: L700 × W1700 × H1600 mm
- Power supply: 3-phase 380V, 50Hz
- Applicable products: Sulfuric acid, hydrochloric acid
- Suitable carton types and arrangements:
- 500 ml: 4×6 & 6×8
- Cartoning speed: 2800 bottles/hour
- Product size:
- Bottle diameter: 75 mm
- Bottle mouth inner diameter: 17 mm
- Bottle height: 170.5 mm
Automatic Cartoning Machine
Main System Configuration:
- Array system
- Cartoning system
- Carton positioning system
- Electrical control system
Electrical Components:
- Motor: Taibang
- Pneumatic components: Airtac
- PLC: Panasonic
Robotic Arm Control System
Main Configuration:
- PLC: Panasonic
- Touch screen: Weinview
- Robot arm: Estun 120 kg payload
- Sensors: Omron, Leuze
- Switching power supply: Omron
- Pneumatic components: Airtac
- Linear guide rails: HIWIN
Bottle Conveyor Line (USL-82.6)
Specifications:
- Conveyor chain: 82.6 × 38.1 × 3 mm plastic chain plates
- Driving and driven wheels: Nylon material
- Side plates: 5 mm thick PVC board
- Frame: PP material, U-shaped bracket made of 5 mm PVC
- Guard rail material: Ultra-high molecular weight polyethylene (UHMWPE), green, 700,000 grade
- Conveyor height: 750 mm
Conveyor Power Head (UD-75)
Specifications:
- Drive motor: Ruiling (Hangzhou) brand, with protective cover
- Driving and driven wheels: High wear-resistant gray nylon
- Bearings: Harbin brand
By the way, if you need to cold press the walnut, you can choose the model listed below:
1 UNIT Walnut shelling machine+4 Unit 355-500 cold pressing model with 390mm barrel (2 hours suggestion)
Walnut shelling machine
If budget，you can choose 300 and 325 model with 300mm barrel (2 hours suggestion)
Even 300 and 325 model with 390mm barrel (3-4 hours suggestion)
Project planning
Configure the right oil press and production line
Send your oilseed, target output, bottle or packaging requirements, power supply, and destination country. We will match the machine, supporting equipment, and line layout.