Views: 0 Author: Site Editor Publish Time: 2026-07-09 Origin: Site
In the actual production of the four-axis turntable of the CNC machining center, the problem of difficult oil supply from the oil pressure hose and the fixed piping to the rotating worktable has long plagued many machining enterprises. The four-axis rotary joint (oil distribution device) was specifically developed to address this issue - it uses a precise rotating sealing structure to stably transfer the fluid medium from the stationary pipeline to the rotating equipment, ensuring that the hydraulic fixtures can still be smoothly supplied with oil while the turntable is continuously rotating.
I. Product Overview: Precisely tailored for four-axis machining scenarios
The four-axis oil circuit distributor is widely used in machining centers, CNC machines, four-axis rotary tables of CNC machines, and workpiece clamping systems. It supports various specifications such as 2 circuits, 4 circuits, 6 circuits, and even 8 circuits. Taking the 4-circuit model as an example, it can be used to control 4 single-action oil cylinders or 2 double-action oil cylinders. Each circuit can be used independently, flexibly meeting the oil supply requirements of different fixtures. The product adopts Rc threaded connection. With the standard configuration, it can be perfectly matched with mainstream four-axis rotary tables, and at the same time supports various thread types and structural customization.
II. Core Technical Advantages
Outstanding sealing performance and durability
The sealed sliding surface is precisely ground and then undergoes ultra-finishing after being treated with hard chrome plating or QPQ surface treatment. It boasts outstanding sealing performance and extremely long durability. The application of imported special sealing components further ensures the stability of the product during long-term operation, effectively preventing "leaking, dripping, spilling and spewing" phenomena.
2. Low starting torque, smooth operation
By adopting a special sealing structure with lower resistance, the sliding resistance is minimized, achieving low torque during startup. Combined with two large and precise bearings for support, the operation is smooth. The bearings require no maintenance throughout their lifespan, significantly reducing the startup load and energy consumption of the equipment.
3. High rigidity and high durability design
The product features high rigidity, high durability and high sealing performance. It adopts professionally developed low-friction seals, achieving low torque and smooth rotational movement. Even under high-speed and high-pressure conditions, it can still maintain stable and reliable fluid transmission performance.
4. Flexible customized non-standard production capabilities
In response to the individualized needs of different customers, we can customize dedicated products based on actual working conditions - whether it's a specific number of channels, a particular installation size, or unconventional working media, we can tailor them to meet your requirements. Most basic components have been standardized and modularized, and non-standard customization can also significantly reduce costs and delivery time.
III. Typical Application Scenarios
Four-axis machining center turntable: Solves the problem of oil supply for the rotating worktable, enabling continuous oil supply for the hydraulic fixtures during the rotation of the turntable.
CNC machine tool tooling and fixtures: Support 2 to 8 independent control circuits, compatible with various configurations of single-action/double-action cylinders.
Five-axis tooling system: Also suitable for the complex oil supply requirements of five-axis machining centers
Gas-liquid mixed medium working condition: It can simultaneously convey various media such as hydraulic oil, compressed air, coolant, etc.
IV. Key Points for Selection and Installation
When selecting the model, it is necessary to clearly define the number of flow paths, working pressure (standard up to 31.5 MPa), working temperature (-20℃ to 100℃), working medium, and other key parameters based on the actual working conditions. During installation, it is essential to ensure that the oil flow rotary joint and the oil flow connecting rod maintain a vertical angle; otherwise, it may cause oil leakage and poor operation. Before installation, make sure that the sealing surfaces are clean and free of foreign substances, and pay attention to the direction of the threaded connection matching the rotation direction of the equipment.
V. Why Choose a Professional Manufacturer
Shandong Focus Machinery Co., Ltd., a manufacturer of rotary joints, has accumulated profound technical expertise in this field. As a national-level high-tech enterprise and a specialized, innovative, and small-sized enterprise, with a complete ISO9001 quality management system and a full-process service covering pre-sale selection matching, in-sale technical collaboration, and post-sale maintenance and repair, it has become a long-term partner of many large enterprises.
Although the four-axis rotary joint (oil distribution device) is small, it is a crucial component for the efficient operation of a four-axis machining center. Choosing a product with reliable sealing, smooth operation, and durability not only enhances processing efficiency and reduces maintenance costs, but also ensures the safety of your precision manufacturing.
