United UCS Oil Injected Air Compressor
In workshops and manufacturing plants, where required a stable compressed air source, easy to operate, and cost-effective investment, UNITED UCS oil-lubricated air compressors is a practical and efficient choice. This machine uses oil-immersed screw compressor technology, offering durable operation, minimal breakdowns, and suitability for a wide range of industrial sectors such as mechanics, packaging, plastics, wood, textiles, and assembly.
Hitachi Corporation of Japan.
UNITED OSD Air Compressors are a testament to the quality of Chinese air compressor brands. It is the only brand that has collaborated with the Hitachi Group of Japan.
UNITED OSD
The products are designed with energy efficiency and environmental friendliness in mind. United OSD offers a range of compressors, from single-stage to two-stage compressors, low-pressure and high-pressure compressors, and many other specialized types. Suitable for all industrial applications, from general to specialized needs such as tunnel boring, rock drilling, or the pharmaceutical industry, United OSD provides comprehensive solutions.
Hitachi Corporation of Japan
Overview of UNITED UCS oil-lubricated air compressors
UNITED UCS oil-lubricated air compressors belong to the group oil-injected screw air compressor, designed for general use in workshops, the UCS series' strengths lie in its features simple structure – stable performance – reasonable investment cost, this makes it easier for businesses to deploy compressed air systems without incurring excessive costs.
The product is offered under the brand name UNITED, focusing on the segment of durable, easy-to-maintain industrial air compressors suitable for real-world operating conditions in Vietnam.
Typical technical specifications of UNITED UCS air compressors
| Specifications | Detail |
|---|---|
| Brand | United OSD |
| Origin | Shanghai |
| Capacity | 5,5 – 360 kW |
| Flow | 0.69 – 120 m³/min |
| Product type | Screw air compressor (1-2 compression levels) |
| Control type | Normally-Inverter |
| Lubrication type | There is oil |
| Cooling type | Air cooling |
| Specifications | Detail |
|---|---|
| Brand | United OSD |
| Origin | Shanghai |
| Capacity | 5,5 – 360 kW |
| Flow | 0,69 – 120 m3/phuˊt |
| Product type | Screw air compressor (1-2 compression levels) |
| Control type | Normally-Inverter |
| Lubrication type | There is oil |
| Cooling type | Air cooling |
Specifications
Specifications
Specifications
Specifications
Specifications
Specifications
Specifications
Specifications
Structure and operating principle
United OSD oil-lubricated air compressor design
Patented design with structure divided into two separate compartments that do not affect each other, including hot compartment and cold compartment
- Hot drilling helps the best air circulation to ensure cooling for all functional components, prolonging life, always operating stably and accurately and extending working life.
- In Cold Drilling, there is a flexible, detachable design and is equipped with high-quality sound insulation to effectively reduce noise. This structural design meets environmental protection requirements and is easy to maintain.
United UCS Oil Injected Air Compressor
Filtration system
- Equipped with inlet filter: Prevents large dust particles and other impurities from entering the compressor.
- High-performance air filtration system (HEPA): The air filtration system is provided by high-quality, pressure-resistant Donaldson (USA). With filtering accuracy up to 99.9% for particles larger than 3μm, suitable for environments containing a lot of dust.
- Double large suction design: Pressure difference is less than 0.2bar, greatly extending the life of the inlet filter
- Large diameter air intake valve: Low energy consumption during no-load operation, die-cast aluminum material, more stable performance.
- Intake tube: High-strength rubber material, good sealing performance, sturdy and durable.
- Oil and gas separation system: Effective oil and gas separation core designed according to European standards. Glass fiber filter material, more effective and does not need to be replaced frequently. The combination of the separator core and the oil return device work together to help improve the high recovery rate of the lubricating oil cycle, avoid the phenomenon of oil flying and ensure that the oil content in the machine exhaust gas is ≤2ppm.
- Lubricating oil: UCS cooling oil has good oxidation resistance, high temperature resistance, high flash point, excellent thermal conductivity and many other properties.
UNITED UCS air compressors have an oil filtration system.
UNITED UCS air compressors have an oil filtration system.
Screen
- PLC + touch screen
- Colorful LCD color touch screen, user-friendly interface
- Monitor operating status continuously for 24 hours
- Works smart
- Standard USB, COM connectivity, upgradeability.
Screen
Smart controller
-
Automated maintenance monitoring
Monitoring the compressor's condition and providing maintenance reminders helps maintain stable operation. -
Remote monitoring anytime, anywhere.
Monitor air compressor activity in real time via a smart connectivity system. -
Production control & data collection
Centralized operational management and accurate analysis of operational data. -
Efficient energy management
Optimizing energy consumption reduces operating costs for businesses.
Smart controller
Permanent magnetic motor
- The motor's efficiency reaches 96%, and its power factor is 0.99, far exceeding the Level 1 energy efficiency standard.
- Using permanent magnets with high hardness and high temperature resistance ensures there is no loss of magnetism at 180℃.
- Independent fan cooling system to ensure safe operation of the motor at low frequencies for extended periods.
- Class F insulation, designed for a temperature rise of 70K, is suitable for high-temperature operating conditions in air compressors.
- The IP55 protection rating ensures complete sealing, keeping the inside of the motor clean and extending the lifespan of the permanent magnets and insulation.
- Integrated temperature protection protects coil insulation and permanent magnets.
Permanent magnetic motor
Inverter
- The overheat protection design increases stability and extends the lifespan of the equipment in harsh operating environments.
- Temporary stop protection function, protection against excessive triggering/release frequency, and many other superior features to handle emergency situations.
- Integrating PLCs and various communication interfaces makes usage and maintenance more convenient.
- Wide speed adjustment range, high stability, stable operation at extremely low speeds down to 0.01Hz with load.
Inverter
VFD motor
- Extremely low temperature drop design allows the compressor to operate
Stable vibration at small frequencies. - Open loop vector control system, faster control speed, speed
more precise.
When the frequency is reduced by more than 50%, the compressor can still operate effectively. - Stable pressure, pressure fluctuations are precisely controlled within 0.01mpa.
- Soft start feature, to avoid the impact of starting current, reduce consumption
absorbs energy during startup.
VFD motor
Principle of operation
UNITED UCS air compressors operate on the principle of screw compression:
-
Ambient air is drawn into the compression chamber.
-
Two counter-rotating screw shafts compress air in an oil-filled medium.
-
Oil helps seal gaps, reduce friction, and provide cooling.
-
The gas-oil mixture is passed through a separator to remove the oil.
-
Compressed air at the required pressure is supplied to the system for use.
This mechanism helps the machine stable operation, low vibration and noise, and long lifespan in a continuous production environment.
The outstanding advantages of UNITED UCS oil-lubricated air compressors.
-
Reasonable initial investment cost, suitable for various factory sizes.
-
Stable compressed air supply, meeting the requirements for continuous shift production.
-
Simple structure, easy to install and maintain
-
Common spare parts, low replacement cost
-
High durability, suitable for operating conditions in Vietnam.
-
The compressed air system is easy to expand in the future
Practical applications
In practical applications at factories, UNITED UCS oil-lubricated air compressors are commonly used for:
-
Mechanical workshop, metalworking
-
Plastics, packaging, wood, and textile factories
-
Product assembly and packaging line
-
Auxiliary compressed air systems in the workshop
According to assessments from the operational engineering team, the UCS series shows high stability, few minor faults, and easy to repair, this is especially suitable for businesses that need a compressed air solution that is "easy to use, easy to maintain, and low-cost".
Guide to choosing the right UNITED UCS air compressor.
To choose the right model, businesses need to determine:
-
Actual airflow requirement (m³/min)
-
Working pressure of end-use equipment
-
Operating time/day (1 shift, 2 shifts, or continuous)
-
Machine room area and ventilation
Choosing the right power rating helps avoid wasting energy and extends the lifespan of the appliance.
Installation & Operation Instructions
-
Place the machine in a dry, well-ventilated area.
-
Ensure good ventilation and heat dissipation.
-
Regularly check the oil, air filter, and oil filter
-
Ensure good ventilation and heat dissipation.
Frequently Asked Questions (FAQ)
1. Is the UNITED UCS air compressor suitable for continuous operation?
Suitable for shift-based production operations and can run continuously if properly maintained.
2. Is the compressed air output clean?
The gas contains oil at permissible levels for general industrial production, but is not suitable for industries requiring absolutely clean gas.
3. Are maintenance costs high?
Low cost, due to readily available and easily replaceable parts.
4. Is it possible to upgrade the inverter for the UCS series?
It may vary depending on the configuration and actual usage requirements.
Why should you buy UNITED UCS oil-lubricated air compressors from Phuc Hung?
-
The unit has practical experience in deploying industrial compressed air systems.
-
Consultation on the right capacity and actual demand, avoiding oversizing
-
Supply of genuine products with transparent technical information
-
Clear warranty, after-sales service, and technical support.
Are you looking for UNITED UCS oil-lubricated air compressors durable, easy to operate, and cost-effective for a factory?
👉 Contact carried out maintenance and oil sludge (varnish) removal for for detailed technical advice, to choose the right model, and to receive the most competitive price quote for your business.
