Hydraulic Oil Press
Ultra High Pressure Cold Press
Model: HN480B
1-Year Warranty • Lifetime Technical Support
Specifications
Model (Single/Double) HN480B Simple / HN480B Double
System Pressure 65 Mpa
Pressing Force 600 Tonnes
Motor Power 2.2 KW
Machine Weight (Single/Double) 2,8 / 3,1 Tonnes
Cylinder Outer Diameter 480 mm
Piston Inner Diameter 360 mm
Barrel Standard Inner Diameter 390 mm (customizable)
Barrel Standard Height 800 mm (customizable)
Cylinder Standard Stroke 850 mm (customizable)
Overall Dimensions (Single/Double) 1300×1300×2800 / 2200×1300×2800 mm
Cake Surface Pressure 48 Mpa/cm²
Recommended Oil Seeds
These seeds are particularly recommended for this machine model. However, it can also process most other oil seeds with excellent results. Contact us if you have questions about a specific seed.
walnut kernel in-shell walnut apricot kernel sesame peanut tea seed flaxseed almond pine nut + more oil seeds available
Description
Overview
The HN480B Ultra High Pressure Cold Press is our most advanced cold-press hydraulic oil press, delivering a massive 600-ton pressing force with 65 Mpa system pressure and 48 Mpa/cm² cake surface pressure. Specifically optimized for walnut pressing with a complete walnut pressing solution, it dramatically shortens pressing time while maximizing oil yield. This is the highest cold-press force in our lineup, purpose-built for producers who demand the ultimate in cold-press performance.
The HN480B features a 480 mm cylinder outer diameter with a 360 mm piston inner diameter, generating the extreme pressure needed to cold press walnuts, almonds, pine nuts, and other hard-shell materials in a single cycle. Our proprietary walnut pressing solution ensures that both walnut kernels and in-shell walnuts are efficiently processed, reducing pressing time and increasing oil yield compared to conventional cold-press methods.
Key Advantages
- Highest Cold-Press Force — 600 tons of pressing force with 48 Mpa/cm² cake surface pressure, the most powerful cold-press capability in our lineup.
- Complete Walnut Pressing Solution — Proprietary process specifically optimized for walnut pressing, dramatically reducing pressing time and increasing oil yield.
- 65 Mpa System Pressure — Ultra-high pressure combined pump delivers working pressure up to 65 Mpa for the most demanding cold-press applications.
- Single-Cycle Cold Press — Hard-shell and cold-press materials including in-shell walnuts are fully extracted in one cycle — no re-pressing needed.
- Premium Oil Quality — Cold pressing preserves natural antioxidants, vitamins, and flavor compounds, commanding premium market prices.
- Dual-Barrel Productivity — Double-barrel configuration with dual sliding rails enables continuous operation for maximum daily output.
Core Technology
- Bar-Type Slotted Barrel — significantly more oil extraction area than drilled barrels, achieving approximately 2-3% higher oil yield (based on internal testing, results vary) per batch.
- German Hydraulic System — Ultra-high pressure combined pump delivers working pressure up to 65 Mpa for the most demanding cold-press applications.
- 4-Hook Cake Removal — Easy, reliable cake discharge system that reduces downtime between pressing cycles.
- High Carbon Steel Frame — Long-lasting service under continuous operation. Actual service life depends on operating conditions and maintenance.
- Microcomputer Control — Automated pressing cycle with one-button operation. Basic training recommended; we provide video tutorials and remote guidance.
- Energy Efficient — Designed to reduce power consumption compared to previous-generation presses (actual savings vary by operating conditions).
- Labor Efficient — Only 1-2 operators needed, reducing labor requirements compared to manual pressing methods.
Applications & Suitable Materials
The HN480B is ideal for pressing the most challenging cold-press materials:
- Walnut Specialist: Walnut kernel, in-shell walnut — our complete walnut pressing solution ensures optimal results
- Other Cold-Press Materials: Apricot kernel, almond, pine nut
- Conventional Materials: Sesame, peanut, tea seed, flaxseed
- Other Materials: Similar hard-shell and premium oil seeds
The HN480B delivers the highest oil yield from cold-press materials, making it the ideal choice for producers of premium walnut oil, almond oil, and other high-value cold-pressed oils.
Why Choose Haonuo
- Factory-Direct Pricing — Get the highest cold-press performance at manufacturer-direct prices. The HN480B offers the best cost per liter of cold-pressed oil in its class.
- Walnut Pressing Expertise — Our proprietary walnut pressing solution is the result of years of research and field testing, ensuring you get maximum yield from every batch.
- Quality Assurance — Every HN480B undergoes comprehensive factory testing, including full-pressure load tests and cold-press cycle verification, before shipment.
- After-Sales Support — From commissioning and operator training to ongoing maintenance and spare parts, our team ensures your HN480B delivers peak performance throughout its service life.
- Customization Options — Barrel dimensions, stroke length, and other specifications can be customized to match your exact production requirements and material characteristics.
Frequently Asked Questions
What is the oil yield of the HN480B hydraulic oil press?
The oil yield depends on the raw material. For example, sesame yields 42-54%, peanuts 40-50%, and rapeseed 35-45%. The HN480B's 600-ton pressing force and bar-type slotted barrel design achieve approximately 2-3% higher yield (based on internal testing, results vary) than traditional drilled barrel presses.
What raw materials can the HN480B press?
The HN480B can press sesame, peanut, rapeseed, sunflower seed, flaxseed, tea seed, soybean, cottonseed, and more. It is specifically optimized for walnut pressing with a complete walnut pressing solution, and also excels at cold pressing almonds, pine nuts, and apricot kernels.
How long does one pressing cycle take?
Cold pressing requires longer cycle times to preserve oil quality at low temperatures. A typical cold pressing cycle takes approximately 2 hours per batch depending on the material and desired cake dryness. Hot pressing (with pre-roasting) completes in 30-40 minutes. The actual cycle time depends on factors like seed moisture content, desired cake dryness, and pressing temperature. The microcomputer control system automates the entire process from feeding to cake discharge.
What is the recommended raw material moisture content for cold pressing?
For cold pressing, the ideal moisture content range is 7-9%. This moisture level ensures smooth oil extraction while maintaining low-temperature conditions. Proper moisture control is critical — too high causes oil emulsification and yield loss, while too low increases friction and reduces throughput.
What pre-processing equipment is needed for cold pressing?
Cold pressing requires careful pre-processing Seed cleaning and color sorting to remove impurities and damaged seeds; 2) Dehulling for high-shell-content materials (shell removal rate at least 95 percent); 3) Moisture conditioning to reach optimal 7-9% moisture; 4) Gentle crushing to break seeds without generating heat (below 60 degrees Celsius). Unlike hot pressing, cold pressing does not involve roasting, preserving natural nutrients and flavors.
What is the difference between single and double barrel configurations?
A single barrel press processes one batch at a time. A double barrel press has two barrels on sliding rails — while one barrel is pressing, you can load the other, nearly doubling your throughput. We recommend the double barrel for commercial and industrial operations.
What power supply does the HN480B require?
The HN480B requires 2.2 KW motor power, compatible with both 220V/50Hz and 380V/60Hz power supplies. We can customize the electrical system to match your local power standards at no extra charge.
How many workers are needed to operate the machine?
Only 1-2 workers are needed. The microcomputer control system automates the pressing cycle, and the 4-hook cake removal mechanism makes unloading easy even after overnight pressing.
What warranty do you provide?
We provide a 1-year warranty covering all manufacturing defects, plus lifetime technical support. For the HN480B, this includes specific coverage for the proprietary cold-press hydraulic system and extended stroke cylinder. Spare parts are available from stock.
How is the machine shipped and how long does delivery take?
The machine is shipped in a wooden crate via sea freight. Delivery to most Asian ports takes 15-20 days, to African ports 25-35 days, and to South American ports 30-40 days. This is in addition to 20-30 working days production time (shipping time additional). Air freight is available for urgent orders.
Do you provide installation and training?
Yes, we provide detailed installation manuals, video tutorials, and remote technical guidance. For large orders, we can send a technician to your facility for on-site installation and training at cost. For the HN480B, ensure your installation floor can support at least 3.5 tonnes and has a minimum ceiling height of 3m for the extended stroke assembly.
What certifications does the machine have?
All machines undergo 48-hour continuous full-load testing before shipment. For the HN480B, the full-load test is conducted at 65 Mpa with 600 tonnes of pressing force, including cold-press cycle verification.
Can the barrel size be customized?
Yes, barrel inner diameter and height can be customized to match your specific material and batch size requirements. Common customizations include larger barrels for bulk materials and food-grade stainless steel barrels for edible oil production.
What is the residual oil rate in the cake?
The residual oil rate in the cake is typically 6-8% for most materials with our bar-type slotted barrel design, compared to 10-12% with traditional drilled barrel presses. This means you extract approximately 2-3% more oil (based on internal testing, results vary) from every batch.
