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The diverse models of CNC rotary tables lead many users to confuse their functions and applicable scenarios. According to axis configuration, driving mode, and structural design, mainstream CNC rotary tables on the market can be divided into four core types, with obvious differences in performance, functions and applicable processing scenarios. Choosing the right model directly determines machining efficiency and finished product quality.
This is the most cost-effective and widely used mainstream model, matched with 3-axis machining centers to form 4-axis linkage equipment. Driven by a precision servo motor, it realizes fixed-angle indexing and continuous rotary processing, with standard positioning accuracy of ±30 arc seconds. It is mainly suitable for conventional multi-surface processing such as part side milling, hole drilling, and chamfering.
The 5-axis rotary table adopts a rotary + tilting dual-axis structure, including cradle and tilting single-axis designs, which can realize all-angle spatial rotation and full-linkage machining. Different from 4-axis fixed-plane rotation, it supports arbitrary angle positioning and complex curved surface synchronous processing, which is the core equipment for high-end complex part manufacturing.
Driven by hydraulic pressure, this model features strong locking force and super stability. Its high-end precision models can achieve positioning accuracy up to 4 arc seconds, far higher than ordinary servo models. It has excellent anti-vibration performance during heavy cutting and can bear super large dynamic load.
Canceling the traditional gear and reducer transmission structure, the DDR direct-drive rotary table is directly driven by a torque motor, realizing zero-transmission clearance operation. It has the characteristics of high speed, high precision, and high dynamic response, with extremely smooth rotary operation and no backlash error.
To sum up: conventional batch indexing processing chooses 4-axis servo models; complex curved surface full-angle processing chooses 5-axis models; heavy-duty high-precision processing chooses hydraulic models; and ultra-precision high-speed finishing chooses DDR direct-drive models.