Hydraulic Oil Press
Medium Hydraulic Oil Press
Model: HN355
1-Year Warranty • Lifetime Technical Support
Specifications
Model (Single/Double) HN355 Simple / HN355 Double
System Pressure 63 Mpa
Pressing Force 360 Tonnes
Motor Power 2.2 KW
Machine Weight (Single/Double) 2,1 / 2,5 Tonnes
Cylinder Outer Diameter 355 mm
Piston Inner Diameter 280 mm
Barrel Standard Inner Diameter 390 mm (customizable)
Barrel Standard Height 800 mm (customizable)
Cylinder Standard Stroke 850 mm (customizable)
Overall Dimensions (Single/Double) 1200×1200×2650 / 2100×1200×2650 mm
Cake Surface Pressure 30.15 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 flaxseed lacquer oil seed + more oil seeds available
Description
Overview
The HN355 Heavy Duty Hydraulic Oil Press is built for operators who demand more pressing power and greater durability. Featuring a robust 3 cm thick steel plate frame, this model delivers a 360-ton pressing force with a cake surface pressure of 30.15 Mpa/cm² — a meaningful step up from the standard HN325. Conventional oil seeds are fully pressed in a single cycle, maximizing oil yield and minimizing waste.
The reinforced steel frame not only withstands higher operating pressures but also ensures long-term structural stability under continuous heavy-duty use. If your production demands exceed what the standard model can deliver, the HN355 provides the extra margin of power you need without stepping up to a cold-press specialist.
Key Advantages
- Heavy-Duty Steel Frame — 3 cm thick steel plate construction provides superior rigidity and extended service life under demanding conditions.
- Higher Cake Pressure — 30.15 Mpa/cm² cake surface pressure ensures conventional materials are fully pressed in a single cycle, leaving less residual oil in the cake.
- 360-Ton Pressing Force — 10% more force than the HN325, giving you the headroom to handle tougher materials with confidence.
- Dual-Barrel Productivity — Double-barrel configuration with dual sliding rails lets you load one barrel while the other is pressing, significantly boosting daily output.
- Single-Cycle Extraction — Most conventional materials achieve complete oil extraction in one pressing cycle, reducing processing time and energy costs.
Core Technology
- Bar-Type Slotted Barrel — Haonuo’s proprietary slotted barrel design provides significantly more oil extraction area than traditional drilled barrels. Oil flows faster and clearer, with approximately 2-3% higher yield (based on internal testing, results vary). No clogging, no cleaning between batches.
- German Hydraulic System — Ultra-high pressure combined hydraulic pump station with high-low dual pump. Working pressure up to 63 Mpa with rapid cylinder return.
- 4-Hook Cake Removal — Innovative 4-hook mechanism ensures easy, reliable cake discharge — even after overnight pressing.
- High Carbon Steel Frame — High-frequency quenched and heat-treated steel for long-lasting service. Actual service life depends on operating conditions and maintenance under 360-ton pressing force.
- Microcomputer Control — Automated pressing cycle from loading to finished oil in minutes.
- 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 HN355 excels with conventional oil seeds and materials that benefit from higher pressing force:
- Oil Seeds: Tea seed, rapeseed, peanut, soybean, flaxseed, lacquer oil seed
- Tougher Materials: Slightly harder seeds and materials that the HN325 may not fully extract in one pass
Note: For cold-press applications involving hard-shell materials like walnuts and apricot kernels, consider our HN426 Cold Press model.
Why Choose Haonuo
- Factory-Direct Pricing — Purchase directly from the manufacturer and get industrial-grade equipment at competitive prices, with no distributor markup.
- Built to Last — The 3 cm thick steel plate frame is engineered for years of reliable service, even under continuous heavy-duty operation.
- Quality Assurance — Each machine is fully load-tested and inspected before leaving the factory, ensuring it meets our strict performance standards.
- After-Sales Support — From installation guidance to spare parts and troubleshooting, our technical team is ready to help you maximize uptime.
- Customization Options — Barrel dimensions and stroke length can be adjusted to suit your specific material and production needs.
Regional Advantages
Southeast Asia (Indonesia, Malaysia, Thailand, Vietnam): The HN355’s 360-ton pressing force is well-suited for palm kernel oil extraction. Higher capacity than the HN325 makes it suitable for growing palm oil operations across the region.
Africa (Nigeria, Kenya, Ghana, Tanzania): The HN355 is our most popular model in Africa. Its heavy-duty construction handles the abrasive nature of cottonseed and palm kernel without excessive wear. Simple operation — only 1-2 workers needed. Generator-compatible with 5.5kVA minimum.
Middle East (Saudi Arabia, UAE, Egypt): Excellent for sesame and walnut oil production with cold press capability. The double barrel option doubles throughput for commercial operations.
Frequently Asked Questions
What is the oil yield of the HN355 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 HN355's 360-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 HN355 press?
The HN355 can press sesame, peanut, rapeseed, sunflower seed, flaxseed, tea seed, soybean, cottonseed, and more. For hard-shell materials like walnuts and almonds, we recommend our cold press or ultra-high pressure models.
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 pre-processing equipment is needed before the hydraulic press?
Complete oil production typically requires several pre-processing stages including seed cleaning and sorting to remove impurities and damaged seeds, dehulling for high-shell-content materials like peanuts with shell removal rate at least 95 percent, moisture conditioning to reach optimal levels, roasting for hot pressing at 160-180 degrees Celsius to develop flavor and color, and seed crushing for improved oil flow. The press itself is the core, but pre-processing directly impacts oil yield and quality.
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 HN355 require?
The HN355 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 HN355, this includes specific coverage for the reinforced cylinder assembly and high-pressure hydraulic system. 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 HN355, ensure your installation floor can support at least 2 tonnes and has adequate ventilation for continuous operation. 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 HN355, the full-load test is conducted at 63 Mpa system pressure with 360 tonnes of pressing force.
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. For the HN355, the standard barrel has an inner diameter of 390 mm and height of 800 mm.
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. With the HN355's 30.15 Mpa/cm² cake surface pressure, you can expect results in the lower end of this range for most conventional materials.
Can the machine operate on generator power?
Yes, our machines are fully compatible with generator power. For the HN355, we recommend a minimum 5.5kVA generator. The machine starts easily and runs stably on generator power, making it suitable for areas with unreliable electricity supply such as rural Nigeria, Kenya, and other African regions.
Do you provide voltage customization for different countries?
Yes, we customize the electrical system to match your local power supply at no extra charge. Common configurations include 220V/50Hz (Southeast Asia, Africa, Middle East), 110V/60Hz (Philippines, parts of South America), and 380V/50Hz (industrial three-phase). Simply specify your local voltage when ordering.
How quickly can I get spare parts in Africa or the Middle East?
We maintain stock of all common spare parts (seals, filter cloth, hydraulic oil, control panel components). Standard parts ship promptly via DHL/FedEx, arriving in 5-7 days to most African and Middle Eastern countries. For Nigeria, we also work with local agents in Lagos who carry commonly needed parts.
