Power and Free Conveyor System for Coating Lines

The Power and Free Conveyor System is an advanced, programmable overhead conveyor solution designed specifically for coating, finishing, and pretreatment lines. Featuring independent trolley movement with start-stop capability, variable speed control, and route flexibility, this system optimizes workflow, increases line efficiency, and supports complex finishing processes. Ideal for powder coating, e-coating, liquid painting, and pretreatment systems, our Power and Free conveyors enhance productivity while allowing customizable production scheduling and reduced energy consumption.

At its core, the Power and Free Conveyor consists of two main components: the power track and the free track. The power track is a continuous loop that drives the conveyor chain, powered by an electric motor. The free track, on the other hand, consists of independently moving trolleys that can detach from the power track to allow for flexibility in the movement of items.

The items to be painted are attached to the free trolleys, which can be moved in and out of the power track as needed. This allows for efficient handling of workpieces that require different processing times or that need to be diverted to different stations for specific treatments, such as surface preparation, painting, or drying.

Power and Free Conveyor System for Coating Lines

1. Track System

Power Track: Continuously moving chain provides the driving force.

Free Track: Non-driven track where carriers can accumulate or be switched.

Switches & Transfers: Pneumatic or electric switches enable route changes.

Curves & Elevations: Custom radii and inclines to fit facility layout.

2. Trolley & Carrier Design

Heavy-Duty Trolleys: Forged or fabricated designs with high load ratings.

Quick-Release Carriers: Easy attachment and adjustment for different part types.

Safety Latches: Automatic locking to prevent unintended detachment.

3. Drive & Control System

Variable Frequency Drives (VFDs): Speed control for different process zones.

PLC-Based Control: Centralized or distributed control with HMI interface.

Accumulation Sensors: Photoelectric or proximity sensors manage carrier spacing.

4. Safety Features

Overload Protection: Torque limiters and slip clutches protect against jams.

Emergency Stop Systems: Line-wide E-stop buttons and zone control.

Guardrails & Enclosures: Optional safety guarding for personnel protection.

Power and Free Conveyor System for Coating Lines	Power and Free Conveyor System for Coating Lines

1.Pretreatment Stages: Stops for immersion, spray, and drying processes

2.Coating Booths: Pause for manual or automatic spraying

3.Curing Ovens: Controlled dwell time for temperature-sensitive materials

4.Cooling Zones: Accumulation before unloading

5.Inspection & Rework: Dedicated stations for quality control

6.Loading/Unloading: Ergonomic work height adjustment

Power and Free Conveyor System for Coating Lines

1.Layout Design: Straight, oval, rectangular, or multi-level configurations
2.Carrier Types: Standard, double-width, or custom-designed for specific parts
3.Automation Interface: Integration with robots, spray systems, and AS/RS
4.Environmental Adaptation: Corrosion-resistant finishes for harsh environments
5.Control Upgrades: MES/ERP connectivity, data logging, OEE tracking

Q: What is the difference between Power and Free and continuous conveyors?
A: Power and Free allows carriers to stop and accumulate independently, while continuous conveyors move all carriers at a constant speed.

Q: Can carriers be manually pushed or repositioned?
A: Yes, carriers can be disengaged from the drive chain and moved manually for maintenance or rework.

Q: How is maintenance handled?
A: Modular design allows quick replacement of chain, trolleys, and drives. Most systems include easy-access features for lubrication and inspection.

Q: Can the system handle different part sizes in the same line?
A: Yes, with adjustable carriers and programmable routing, multiple product types can run simultaneously.