DELTA PRECISION:Your Professional Miniature Hydraulic Components Manufacturer!
Founded in 2004, Delta is driven by an unwavering commitment to quality and technology, a responsible attitude towards customers, continuous research and development, and the dedication of its employees. Delta has flourished and has become a high precision company in the high-speed rail, Miniature hydraulic, precision instrument equipment and medical device industries. A reliable partner for micro parts manufacturing, Delta provides customers with one-stop manufacturing solutions from part processing to finished product assembly, from the research and development stage to the mass distribution stage.
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Miniature One-way Valve
Low-resistance one-way valve is a POPPET type high-flow rate Lee one-way valve with an opening pressure of 15 psid and extremely low flow velocity. Currently, DELTA has developed two specifications: Add to Inquiry -
Miniature Check Valve
Micro check valve is a miniaturized check valve, mainly used to control the one-way flow of fluid (gas or liquid), to prevent backflow. Its core feature is small size, light weight, suitable for Add to Inquiry -
Miniature Non-return Valve
The micro check valve is a small size check valve that plays a vital role in the aviation field.In the pilot's life support system, the micro check valve plays a key role. It can be used to control Add to Inquiry -
Miniature Flow Control
Aviation hydraulic micro-flow valve is a kind of Precision miniature fluid control valves used to precisely control hydraulic oil flow in aircraft hydraulic system. It is vital in the aviation sector Add to Inquiry -
Safety Screen Filters
Miniature Oil filters is a small filter device used to filter hydraulic oil in aircraft hydraulic system. Its main role is to remove pollutants in hydraulic oil (such as particles, metal chips, dust, Add to Inquiry -
Valve Body
The valve block (also known as the body or seat) in the hydraulic servo valve is one of the key structural components of the servo valve and is used to install and secure the spool, valve sleeve, and Add to Inquiry -
Valve Turned Parts
Valve turned parts-Jet tube,Slide valveThe Precision valve turning parts (such as jet tube, slide valve, etc.) in the electro-hydraulic servo valve are the core CNC machining hydraulic valve Add to Inquiry -
Valve Machining Components
A hydraulic servo valve is a high-precision electro-hydraulic control element used to convert weak electrical signals into precise hydraulic output, thereby controlling the movement of hydraulic Add to Inquiry
Assisting customers with technology development
Assisting customers in developing new products and providing total machining and manufacturing solutions for high-precision and micro-parts.
No compromise on quality
Strictly follow IATF16949 and ISO13485 quality management system standards for process quality control. There are many items that perform 100% full-size inspection. We provide material report, heat treatment/surface treatment report and out-going inspection report for each shipment. According to customers' requirements, we can also provide material RoHS test report and third party SGS material test report.
Stable precision machining process
More than ten years of machining experience, with precision and stable production equipment, strictly according to the drawing size and precision processing.
Main processes in-plant production
The main processes and product inspections are carried out in-house, except for heat treatment and surface treatment.
Proofing success rate is guaranteed
As long as the customer place the sample order, we guarantee to provide qualified samples, unqualified free redo, redo still can not meet the requirements of the drawings can be refunded.
More concerned about delivery than customers
We deliver strictly according to the contractual delivery date, and are more concerned about the delivery date than our customers.
Advantages of Miniature Hydraulic Components
Miniature hydraulic components achieve precise control through hydraulic force transmission, which makes them excel in applications that require high-precision positioning or force control. For example, in medical devices, micro hydraulic cylinders can be used to accurately position surgical tools.
Miniature hydraulic components have a wide range of application potential in multiple fields. In manufacturing, they can be used for micro-machining and micro-assembly; in the medical field, they can be used for drug delivery and surgical assistance; in robotics, they can be used to create more flexible and delicate robotic arms.
Compared with traditional large hydraulic systems, miniature hydraulic components are generally more energy-efficient. They require a smaller volume of liquid, which can reduce energy consumption and help reduce the impact on the environment.
Despite their small size, miniature hydraulic components generally have excellent durability. Their internal parts are precisely manufactured to withstand high pressures and frequent working cycles.
The miniature hydraulic components are small in size and can adapt to various cramped spaces. Whether it is a narrow creative workshop or a compact workshop, they can be seamlessly embedded and become a space-saving assistant.

Application of Miniature Hydraulic Components
Robotics
Tiny hydraulic pumps power miniature actuators in robots, enhancing strength and dexterity for tasks requiring precision and force.
Medical Devices
Miniature hydraulic components enable precise fluid control in drug delivery systems and artificial hearts, allowing for implantable devices with enhanced functionality.
Aerospace
In satellites, small hydraulic pumps control antenna deployment and solar panel positioning due to their compact size and ability to function in weight-sensitive environments.
Automotive
Miniature hydraulic pumps play a role in power steering, ABS, and adaptive suspension systems, contributing to improved vehicle handling, safety, and fuel efficiency.
Manufacturing
They are used in CNC machines and injection molding equipment, providing precise control for various manufacturing processes.
Construction and Agriculture
Miniature hydraulic power packs are used in tipper trucks, scissor lifts, and agricultural machinery for lifting, tilting, and other hydraulic functions.
Rescue and Disaster Relief
Compact hydraulic tools powered by miniature pumps, such as jaws of life, are crucial for emergency response in confined spaces.
Types Of Miniature Hydraulic Components
Electric hydraulic power unit
The hydraulic pump is driven by an electric motor, and the flow of liquid is controlled by a hydraulic valve to drive a hydraulic motor or actuator. It has the characteristics of compact structure and easy operation, and is widely used in various industrial fields.
Manual hydraulic power unit
The hydraulic pump is driven by manually operating the pump rod or handle to provide hydraulic power. It is suitable for occasions requiring manual control, such as emergency operation, site restrictions, etc.
Pneumatic hydraulic power unit
The hydraulic pump is driven by a pneumatic pump or compressed air, and is suitable for occasions requiring air power, such as far away from power supply or explosion-proof environment.
Hydraulic manual pump unit
It is composed of a manual hydraulic pump, a hydraulic cylinder and an oil tank, etc., and is suitable for small and simple hydraulic power needs.
Hydraulic electric pump unit
It is composed of an electric hydraulic pump, a hydraulic cylinder and an oil tank, etc., and is suitable for larger and complex hydraulic power needs.
Built-in hydraulic power unit
Some hydraulic actuators or equipment have integrated components such as hydraulic pumps, hydraulic valves and hydraulic motors to form a built-in hydraulic power unit that can directly drive the actuator to work.
Hydraulic oil management: Regularly check whether the oil level of the hydraulic oil tank is within the normal range to ensure that the oil is clear and free of impurities. If the oil is found to be turbid or contains impurities, replace it with new oil and clean the oil tank and oil circuit in time. In addition, replace the hydraulic oil once a year, and thoroughly clean the oil tank when replacing it to ensure that the oil is clean.
Hydraulic component maintenance: Regularly check the sealing performance of hydraulic components, replace damaged seals in time to prevent oil leakage. For key components such as pumps, motors, and valves, they should be cleaned regularly to maintain their cleanliness. At the same time, check the operating status of the hydraulic pump to ensure that there is no abnormal noise or vibration.
Filter maintenance: Regularly clean or replace the filters in the hydraulic system to prevent impurities from entering the system. In particular, the suction filter and the return filter should be regularly checked and the filter element should be replaced to ensure that the oil is clean.


Temperature and pressure monitoring: Monitor whether the temperature of the hydraulic oil and the working pressure of the system are within the normal range. Excessive oil temperature will accelerate the oxidation and deterioration of the oil, and abnormal pressure may indicate a fault inside the system. Install temperature and pressure gauges to monitor these parameters in real time, detect problems in time and take measures.
Leakage check: Check whether there are leaks in hydraulic pipes, joints, seals, etc. Leakage will cause oil waste and affect system performance. Leakage points should be dealt with immediately.
Other maintenance measures: Clean the surface and interior of the hydraulic system regularly, remove dust, dirt and grease, and keep the system clean. Tighten all connectors to prevent loosening and oil leakage. Lubricate the moving parts of the hydraulic system regularly to reduce friction and wear.
Packaging and Shipping
Packaging
We typically begin by placing parts in anti-static bags. We then use foam padding or custom pallets to secure the parts in place and prevent them from shifting during transport. Once the parts are securely placed on the pallet, we place them in sturdy cartons. We also add cushioning material, such as bubble wrap or foam padding, around the carton to further protect the parts from impact.
Shipping
●Express Delivery:For customers who need parts urgently, express delivery is the best option. Companies like DHL, FedEx, and UPS offer fast and reliable express delivery services. These services typically guarantee delivery within 1-3 business days, depending on the destination.
●Air Freight:For larger orders that still require relatively fast delivery, air freight is a good option. Air freight transit times are typically approximately 3-7 business days, depending on distance and any customs clearance requirements.
●Sea Freight:For large orders where time is not a critical factor, sea freight is the most economical option. Sea freight is slower than air freight, with transit times ranging from 2 to 8 weeks depending on the destination.
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