CH502200/GD Model/Idler Shaft Machining Center

and automatic loading/unloading system

The CH502200/GD-type idler shaft machining center and automated loading/unloading system is a specialized machining solution that integrates automation, high precision, and multi-functionality. It enables fully automated CNC machining of idler shafts across all process steps and can operate independently or be seamlessly integrated into intelligent idler production lines.

I. Core Components and Processing Capabilities

The system comprises four major modules: the ZCSJ-I automatic material storage and feeding rack, the CH502200/GD roller shaft machining center, the ZCGC-I automatic material discharge mechanism and storage rack, and the GDLPJ-I chain-plate chip conveyor, covering the entire process from raw material feeding to finished-product discharge.
The machining range covers two types of raw materials: cold-drawn shafts (Φ20–Φ50) and round bars (Φ22–Φ53), with workpiece lengths from 250 to 2,200 mm. The machine can perform a full suite of processes, including automatic loading, chamfering at both ends of the shaft, turning retaining-ring grooves, turning or milling flat or through-flat slots, center-drilling, drilling radial holes (optional), and automatic unloading and material storage. It also offers optional functions such as external cylindrical turning, thread turning, axial drilling and tapping at the shaft ends, and radial keyway milling.

II. Key Unit Advantages

1. ‌ ZCSJ-I Automatic Material Storage and Feeding Rack : Employs a PLC control system and ball-screw feed module for high-precision, adjustable center height feeding, compatible with raw materials of various diameters, and can be integrated with a milling-and-cutting material-feeding system to form a complete production line.
2. ‌ CH502200/GD Type Idler Shaft Machining Center Equipped with a KND CNC system, this machine features a dual-CNC cross-slide table and a hydraulic live center configuration, enabling simultaneous machining at both ends with a dual-axis linkage accuracy of 0.03 mm. It is fitted with a tool turret and a milling-face cutter holder, allowing efficient execution of multiple operations such as face milling, chamfering, and grooving. We recommend pairing it with CNC-controlled precision cutting of raw materials to eliminate the need for fixed-length face-milling, thereby further enhancing productivity. Key components are sourced from premium brands, including Taiwan-made ball screws and linear guides, as well as NSK screw bearings from Japan, ensuring outstanding equipment stability and precision.
3. ‌ ZCGCJ-I Automatic Discharge Mechanism and Material Storage Rack : A CNC self-propelled 90° turning dump truck is employed, offering high travel speed, precise control, and a large storage bin capacity that can hold 200–350 finished spindles, thereby reducing the frequency of material transfers.

III. Equipment Operation Requirements

The operating ambient temperature for the equipment shall be maintained between 10°C and 40°C, with the optimal range being 15°C to 25°C and a 24-hour temperature variation not exceeding ±2°C. Relative humidity should be controlled within 40% to 75% at 20°C. The power supply must comply with three-phase five-wire 380 V specifications, with voltage fluctuations limited to ±10% and frequency to 50 Hz ±2; in areas where voltage stability is poor, a voltage regulator shall be installed. Reliable grounding must be ensured (ground resistance < 4 Ω), and the air supply pressure must reach 0.7–0.8 MPa. If the air supply does not meet these requirements, an air purification device must be installed. In addition, the equipment should be located away from direct sunlight, vibration sources, heat sources, and high-frequency electrical equipment.