CNC Fully Automatic Production Line for Roller Shafts

Product Overview

The CNC fully automatic production line for idler shafts is a comprehensive, process‑automated machining system developed by Shanxi Gude Baofeng Heavy Machinery Co., Ltd. specifically for idler‑shaft manufacturers. The entire line consists of… CNC automated machine tool assembly for milling and breaking conveyor idler shafts and Idler Shaft Machining Center Assembly Integrated into two major components, it covers the entire process flow of conveyor idler cold-drawn shafts—from raw material preparation to finished products—making it the ideal choice for mass production of belt conveyor idler shafts.

The production line can perform a full range of machining operations, including CNC precision milling and cutting of cold‑drawn shafts, chamfering at both ends, turning retaining‑ring grooves at both ends, turning flat or through‑flat slots at both ends (or milling such slots, optional), center‑drilling at both ends, and drilling radial holes at both ends (optional). Operators simply place the cold‑drawn shafts onto the automatic shaft‑feeding rack; the process then runs automatically, with material handling occurring seamlessly between stations, achieving fully automated flow throughout the entire line. This production line can operate independently or be integrated with an intelligent roller‑conveyor line; its design includes pre‑installed interface connections for easy integration.

Production line composition

‌ (1) Assembly of a CNC automated machine tool for milling and breaking conveyor idler shafts ‌
It consists of an automatic shaft‑feeding rack (SGZXJ‑I), a CNC‑controlled automated milling and cutting machine for roller shafts (SGZX‑I, equipped with a Delta PLC system), and a V‑roller shaft conveyor line (SGZXV‑I). The automatic shaft‑feeding rack comprises a frame, a feeding mechanism, a hydraulic system, and a control system, and is responsible for storing cold‑drawn shafts and automatically feeding them. The milling and cutting machine allows users to set the desired cut length via a human–machine interface, and automatically performs shaft feeding, CNC‑controlled feed‑and‑head‑cutting, CNC‑controlled fixed‑length cutting, and finished‑product conveying.

‌ (2) Idler Shaft Machining Center Assembly ‌
It consists of an automated material‑storage loading rack (ZCSJ‑I), a roller‑shaft machining center (CH502200/GD, equipped with a KND CNC system), and an automatic unloading mechanism together with a storage rack (ZCGCJ‑I), enabling fully automated CNC machining that integrates loading, processing, and unloading. The machining center comprises a cast‑iron bed, two sets of CNC cross slides, two hydraulic chucks, a CNC control system, a hydraulic system, an external protective enclosure, and a chip conveyor. Short shafts are clamped by a single hydraulic chuck, while long shafts are supported by two chucks; the inter‑axis linkage achieves a positioning accuracy of 0.03 mm.

Core Technological Advantages

• ‌ End-to-end automation : PLC program control, servo-driven material feeding, parameter setting via a human–machine interface, automatic operation between processes, and automated material handling. 1 person or 1 person handling multiple roles It is ready for operation.
• ‌ High-precision machining : The CNC feeding mechanism employs a servo motor, ball screw, and linear guide rail configuration, delivering high accuracy in fixed-length positioning; machining length accuracy ≤±0.05mm , end-face roughness: 3.2; machining center axis accuracy: 0.01–0.02 mm (over the full length).
• ‌ High-efficiency milling and breaking It employs an imported circular saw blade to cold‑draw the roller shaft, ensuring smooth and efficient operation, extended blade life, low cutting costs, and high‑quality cut surfaces. It is also equipped with a vibration‑damping mechanism for the saw blade and an atomizing cleaning system.
• ‌ Reliable clamping : The cold‑drawn shaft clamping pliers are hydraulically driven; the machine bed is made of HT200–300 cast iron, undergoes double tempering to relieve internal stresses, and is paired with linear guideways for robust rigidity and stability.
• ‌ Considerable production capacity : The milling and cutting machine tool’s production capacity can reach 800–1,000 sticks per shift (Depending on the diameter of the idler shaft.)

Main Technical Parameters

Processing Scope and Application Fields

The production line’s processing scope includes cold-drawn shafts. Φ20-Φ50 , round steel bar Φ22-Φ53 , processing length L=270-2200mm It can accommodate mainstream idler shaft specifications. The product is widely used for machining idler shafts in belt conveyors across industries such as mining, power generation, port operations, building materials, metallurgy, and coal, and can be optionally equipped with additional functions including external cylindrical turning, threading, axial drilling and tapping at the shaft ends, and radial keyway milling.

Manufacturer’s strength

Shanxi Gude Baofeng Heavy Industry Machinery Co., Ltd. was established in 2002 and is located in Yuanping City, Xinzhou Prefecture, Shanxi Province. It is a specialized research and manufacturing enterprise in China, focusing on CNC‑automated idler‑roller production lines and high‑end idler rollers. National High-Tech Enterprise , it has provincial- and city-level enterprise technology centers and has already passed ISO 9000 Quality Management System Certification and National MA Coal Safety Certification It is a member of the China National Heavy Machinery Industry Association and the Belt Conveyor Branch of the China Heavy Machinery Association. The company integrates research, development, and manufacturing, offering customers customized and integrated solutions for complete sets of idler roller processing equipment.

Frequently Asked Questions (FAQ)

‌ Q1: How many operators are required for this CNC fully automatic production line for idler shafts? ‌
A: The production line employs PLC-based automatic/manual control, allowing the entire line to be operated by a single operator or by one person managing multiple stations.

‌ Q2: What level of machining accuracy can be achieved? ‌
A: Milling‑cutting machine tools achieve a machining length accuracy of ≤±0.05 mm and an end‑face surface roughness of 3.2; the machining center’s axis positioning accuracy is 0.01–0.02 mm over the full travel.

‌ Q3: What specifications of idler shafts can be machined? ‌
A: Cold-drawn shafts Φ20–Φ50, round bars Φ22–Φ53, with machining lengths L = 270–2200 mm.

‌ Q4: Can the production line be integrated with the existing line? ‌
A: Yes. The production line can operate independently or be integrated with an intelligent roller‑conveyor production line; a docking solution has been pre‑configured during the design phase.