Double Spindle Turning Milling Composite Machine Tool Double spindle butt lathe is an advanced CNC lathe with high in the machine tool industry. Its main feature is that it can achieve multiple types of turning and drilling processing on one machine tool, improving productivity and machining accuracy. Double Spindle Turning Milling Composite Machine Tool,Dual Spindle Cnc,Dual Spindle Lathe,Dual Spindle Cnc Lathe Ningbo Yien Machinery Co., Ltd , https://www.yienmachinery.com
I. Structure composition
The main structural composition of double spindle docking lathe includes machine body, CNC system, tool holder, toolholder, spindle, collet, turning center, tool, etc. Among them, the machine tool body is the foundation of the whole lathe, mainly responsible for supporting and fixing each component to ensure the stability of the machine tool. The CNC control system is the intelligent brain of the lathe, which centrally controls and manages the operation and machining process of the lathe. The tool holder and tool shank are used to hold and fix the tool and cut the workpiece. The spindle and collet are the core parts of the lathe, which are responsible for driving the workpiece and cutting tools, etc. for machining.
II. Working Principle
The working principle of double spindle docking lathe is similar to that of ordinary lathe, but it has double spindle structure. Its spindles can run together or work independently to process two workpieces at the same time, thus realizing multiple tasks on one machine tool. This lathe adopts advanced CNC technology, which can freely adjust the processing parameters as needed and highly automate its working process.
III. Application Scenario
The twin-spindle docking lathe is widely used in the processing of various materials such as metals and non-metals in the industrial field. Its main application scenarios include:
(1) Aerospace field: manufacturing various aerospace engines, accessories and parts.
(2)Automobile manufacturing industry: used to produce various cars, trucks and motor vehicle parts.
(3) Medical devices: for the production of various medical devices and medical equipment.
(4) Electronics field: for the production of a variety of electronic product housings and parts.
(5) Machinery field: for the production of various machinery, industrial equipment and parts.
In a word, double spindle butt lathe is a kind of advanced CNC lathe that is standardized, modularized and equipped with advanced mechanical, electrical, hydraulic, pneumatic and computer control technologies. Its high efficiency, high precision and high automation make it have great advantages in terms of return on investment, production efficiency and product quality.
Qyk21-25 Hydro-Pneumatic Pressure Switch Qyk21-25/Qyk21-40 Two Position Two Way Reversing Valve/Position Selector Valve Qyk21-25 Relief Valve Qyk21-40
The hydro-pneumatic pressure switch is a two-position, two-way reversing valve designed to control the operation of the pneumatic oil pump, allowing it to start and stop as needed. This component is essential for maintaining proper pressure levels in hydraulic systems, ensuring smooth and efficient performance.
Model numbers available are QYK21-25 and QYK21-40, both classified as double-seater units. These models are manufactured under the brand UPET and are packaged according to export standards, making them suitable for international shipping and distribution.
The product specifications include the model numbers QYK21-25 and QYK21-40, with an origin from China. The HS code assigned to this item is 8431431000, which helps in customs classification and import/export procedures.
This pressure switch is commonly used in blowout preventer (BOP) control systems, where reliable and precise pressure management is critical. It functions as a position selector valve, enabling accurate control over the system’s operation.
Below are some images of the QYK21-25 and QYK21-40 hydro-pneumatic pressure switches:





These valves are widely used in industrial and mechanical applications where precision and reliability are key. Whether you're looking for a high-quality pressure switch for your BOP system or a reliable hydraulic component for your machinery, these models offer excellent performance and durability.