Product Overview

The CLC-2 4L is a positive displacement electric lubricating pump designed specifically for integration into centralized lubrication systems controlled by a host PLC (Programmable Logic Controller). This industrial pump delivers precise, metered lubrication to multiple points on machinery and equipment, ensuring optimal lubrication for bearings, slides, gears, and other moving components while minimizing lubricant waste and manual intervention.

Operating under PLC control, the CLC-2 pump receives commands from the machine controller to initiate lubrication cycles based on machine operating conditions, elapsed time, or cycle counts. The system allows the host PLC to define both lubrication duration and interval timing, providing flexible lubrication strategies that can be optimized for different machine operating modes. The pump is equipped with a 4-liter reservoir, providing adequate lubricant capacity for extended periods of operation between refills.

Technical Specifications

Key Features

• PLC-controlled operation cycles allow the host machine controller to define lubrication duration and interval timing based on machine operating conditions.

• Maximum running time per cycle of ≤ 2 minutes prevents pump overheating and ensures lubricant consumption remains within system capacity.

• Minimum interval time of ≥ 2 minutes provides adequate time for lubricant distribution before the next pump cycle.

• Low oil level alarm output enables remote monitoring of lubricant supply, notifying operators when reservoir refilling is required.

• Automatic pressure relief system releases residual pressure after pump stops, preventing leakage from metering devices and ensuring precise lubricant delivery.

• Adjustable pressure regulating valve permits fine-tuning of system operating pressure to match lubrication requirements of different machine types.

• Thermal overload protection safeguards the pump motor from damage due to excessive current or extended operation.

• Optional pressure switch (N.O., AC220V) monitors main lubrication line for flow loss or pressure drop, providing fault detection.

• Manual override switch allows forced lubrication during system setup, testing, and maintenance activities.

• Visual status indicator (LED panel) provides immediate confirmation of pump operating state for maintenance personnel.

Applications

The CLC-2 4L PLC-controlled lubricating pump is deployed across a broad range of industrial machinery requiring automatic, centralized lubrication. Typical applications include CNC machining centers, where the pump lubricates linear guideways, ballscrews, spindle bearings, and rotary tables based on machine operating hours or axis movement counts. In stamping presses, the CLC-2 provides timed lubrication to slide bearings, clutch components, and connecting rod bushings, with automatic pressure relief preventing leakage during idle periods.

Additional applications include injection molding machines (lubrication of platens, toggle mechanisms, and injection units), packaging machinery (cam followers, chain drives, and seal bars), textile machinery (spindles and needle bars), and material handling equipment (conveyor bearings and drive chains). The pump's compatibility with TF series metering valves enables progressive lubrication systems where metered quantities of lubricant are sequentially delivered to multiple points. For OEMs and machine builders, the PLC-controlled interface simplifies integration into the host machine control architecture, allowing lubrication to be coordinated with machine production cycles, safety interlocks, and maintenance alerts.