Hydraulic Oil Press
Heavy Duty Hydraulic Oil Press
Model: HN400
1-Year Warranty • Lifetime Technical Support
Specifications
Model (Single/Double) HN400 Simple / HN400 Double
System Pressure 63 Mpa
Pressing Force 500 Tonnes
Motor Power 2.2 KW
Machine Weight (Single/Double) 2,0 / 2,3 Tonnes
Cylinder Outer Diameter 400 mm
Piston Inner Diameter 310 mm
Barrel Standard Inner Diameter 390 mm (customizable)
Barrel Standard Height 800 mm (customizable)
Cylinder Standard Stroke 850 mm (customizable)
Overall Dimensions (Single/Double) 1200×1200×2600 / 2100×1200×2600 mm
Cake Surface Pressure 38 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.
tea seed rapeseed peanut soybean walnut kernel flaxseed + more oil seeds available
Description
Overview
The HN400 Medium Hydraulic Oil Press bridges the gap between our standard and cold-press models, offering 500 tons of pressing force with 38 Mpa/cm² cake surface pressure. This versatile machine is suitable for cold pressing and works effectively in all seasons without being constrained by climate conditions. Whether you are processing conventional oil seeds or venturing into cold-press production, the HN400 provides the power and flexibility you need.
The HN400 cylinder paired with a 390 mm inner diameter barrel achieves a cake surface pressure of 38 Mpa/cm², enabling most conventional and semi-hard materials to be fully pressed in a single cycle. Its cold-press capability means you can produce premium cold-pressed oils from tea seed, walnut kernel, and flaxseed while maintaining the natural flavor and nutritional value of your product.
Key Advantages
- Versatile Cold-Press Capability — Suitable for cold pressing, works in all seasons without climate constraints, preserving premium oil quality year-round.
- 500-Ton Pressing Force — Substantial power that bridges the gap between standard and dedicated cold-press models, handling a wide range of materials with ease.
- 38 Mpa/cm² Cake Pressure — Sufficient for most conventional and semi-hard materials to be fully pressed in one cycle, with lower residual oil rates than standard models.
- All-Season Operation — Engineered for reliable performance regardless of ambient temperature, ensuring consistent production output throughout the year.
- Dual-Barrel Productivity — Double-barrel configuration with dual sliding rails enables continuous operation — load one barrel while the other presses.
- Customizable Barrel — Barrel diameter and height can be tailored to your specific material requirements.
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 63 Mpa for consistent, powerful extraction.
- 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 HN400 is ideal for pressing a wide variety of conventional and semi-hard oil seeds:
- Cold-Press Materials: Tea seed, walnut kernel, flaxseed
- Conventional Materials: Rapeseed, peanut, soybean
- Other Materials: Similar semi-hard and conventional pressing materials
Note: For the most demanding cold-press materials such as in-shell walnuts and apricot kernels, consider our HN426 Cold Press model or HN500 Ultra High Pressure model.
Why Choose Haonuo
- Factory-Direct Pricing — Buy directly from the manufacturer and eliminate middleman markups. The HN400 offers excellent value as a versatile mid-range hydraulic oil press.
- Cold-Press Versatility — We understand the demands of both conventional and cold-press production and have engineered the HN400 to excel at both.
- Quality Assurance — Every machine undergoes rigorous testing before shipment, including full-load hydraulic pressure tests and operational cycle verification.
- After-Sales Support — Comprehensive technical support, spare parts availability, and remote troubleshooting assistance to keep your operation running smoothly.
- Customization Options — Barrel dimensions, stroke length, and other parameters can be customized to match your specific material and production requirements.
Frequently Asked Questions
What is the oil yield of the HN400 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 HN400's 500-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 HN400 press?
The HN400 can press sesame, peanut, rapeseed, sunflower seed, flaxseed, tea seed, soybean, cottonseed, and more. It is also suitable for cold pressing walnut kernels and flaxseed, working effectively in all seasons.
How long does one pressing cycle take?
Hot pressing (with pre-roasting) completes in 30-40 minutes per batch. Cold pressing takes approximately 2 hours to preserve oil quality at low temperatures. 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 pressing?
The optimal moisture content varies by material type and pressing method. For hot pressing, we recommend 5-8% moisture before roasting, with the roasted material reaching 3-5% moisture. For cold pressing, the ideal range is 7-9% moisture. Proper moisture control is critical — too high causes oil emulsification and yield loss, while too low increases friction and reduces throughput.
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 HN400 require?
The HN400 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 HN400, this includes specific coverage for the dual-barrel sliding rail system and high-capacity hydraulic pump. 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 the HN400, ensure your installation floor can support at least 2.5 tonnes and has a minimum ceiling height of 2.8m for the double-barrel configuration. For large orders, we can send a technician to your facility for on-site installation and training at cost.
What certifications does the machine have?
All machines undergo 48-hour continuous full-load testing before shipment. For the HN400, the full-load test verifies consistent performance across both single and double barrel configurations.
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.
