PLC Automatic Control Acid Zinc Electroplating Machine for Metal Components

 
Equipment Overview

This plating line is engineered for high-volume production and stable automatic transfer of workpieces between process tanks. Its rigid steel structure, variable-speed transporter, and PLC control system provide reliable movement, accurate positioning, and convenient operation.
1. Main Structure
The equipment frame is constructed from A3 structural steel with an epoxy-coated exterior for enhanced corrosion resistance. The main structure includes fixed plates, support columns, walkways, flat wire, and horizontal adjustment bolts. The frame color can be customized according to customer requirements.
2. Transporter & Drive System
The transporter combines horizontal travel and vertical lifting mechanisms. Geared brake motors provide direct wheel drive and stable movement, while the positioning system enables controlled deceleration and accurate stopping.
3. Jig Lifting
The lifting mechanism uses a geared brake motor, coupling, and high-strength acid-resistant, aging-resistant belt to ensure reliable vertical movement.
4. Movement Control
PLC and frequency converters regulate horizontal and vertical movement at three selectable speeds: low, medium, and high. Controlled acceleration and deceleration help minimize transporter swing and ensure smooth movement and precise positioning.
5. Safety Design
Emergency stop buttons and safety devices are integrated into the line to allow rapid shutdown during abnormal operating conditions.
Control & Electrical Configuration

• PLC: Mitsubishi Electric, Japan

• Frequency Inverter: Mitsubishi Electric, Japan

• Touchscreen: Kunlun Tongtai

• Proximity & Photoelectric Sensors: Omron, Japan

• Contactors & Thermal Relays: Omron, Japan

• Control Cabinet: Organized wiring, clear wire numbering, component identification, and English operation labels. The cabinet is designed with protection against moisture and corrosion.

• Operating Modes: Automatic and manual modes are available. Automatic operation can control workpiece residence time, transporter travel, and lifting speed.

• Program Functions: Power-failure memory and interruption recovery functions facilitate handling of unexpected stoppages.

• Safety System: Multiple emergency stop devices are provided throughout the equipment to enhance operational safety.

Production Specifications

• Production Application: Suitable for high-volume electroplating production, particularly for continuous processing of the same or similar workpieces.

• Cycle Time: The fastest cycle can reach approximately 30 seconds per rack, depending on the plating process and workpiece configuration.

• Operation: PLC-based automation simplifies operation and helps maintain consistent processing conditions.

• Transporter Control: Multi-speed horizontal and vertical movement supports smooth transfer and accurate positioning.

• Customization: The equipment can be configured according to production capacity, process requirements, workpiece characteristics, and factory layout.

Acid Zinc Electroplating Process

Loading → Degreasing → Water Rinsing → Acid Pickling / Activation → Water Rinsing → Acid Zinc Plating → Water Rinsing → Passivation → Water Rinsing → Sealing → Hot Air Drying → Unloading

The acid zinc plating process is configured according to the substrate material, workpiece geometry, required coating thickness and corrosion-resistance requirements. Pretreatment removes oil and surface contaminants before plating, while intermediate rinsing helps reduce chemical carryover between process tanks. During acid zinc electroplating, the workpieces are connected to the cathodic circuit and the zinc coating is deposited under controlled electrical and process conditions. Passivation and optional sealing can then be applied to improve corrosion resistance and surface appearance.
 
About the Manufacturer

we specializes in surface finishing and electroplating equipment, including automatic plating lines, barrel plating systems, rotary vertical plating lines and related environmental protection equipment. The engineering scope covers mechanical design, electrical control, equipment manufacturing, installation and commissioning. Plating systems are customized according to workpiece specifications, production requirements, process flow and factory layout.

Each acid zinc electroplating machine is inspected throughout the manufacturing and assembly process. The structural frame and mechanical components are checked for dimensional accuracy and alignment. Electrical components, PLC controls, sensors, inverters and control cabinet wiring are tested for proper operation. The transfer and lifting systems are checked for smooth movement and accurate positioning. Before shipment, the complete line is functionally tested to verify the programmed process sequence, automatic/manual control modes and emergency stop functions.

FAQ

Q1. What is an acid zinc electroplating machine used for?
It is used to deposit a zinc coating on metal components to improve corrosion resistance and provide the required surface finish.
Q2. Is the acid zinc plating line fully automatic?
The system can use automatic PLC-controlled horizontal and vertical rack movement, while manual control can also be provided for maintenance and testing.
Q3. Can the plating line be customized?
Yes. Tank arrangement, process sequence, transfer system, production capacity and control configuration can be customized according to the project requirements.
Q4. What components are used in the control system?
The available configuration includes Mitsubishi PLC and inverter components, Omron sensors and a touch-screen operator interface. The final configuration can be adjusted according to project requirements.
Q5. Can installation and commissioning support be provided?
Installation guidance, commissioning and operator training can be arranged according to the project requirements.