Product Overview

The CLA-2 3L is a positive displacement electric lubricating pump designed for integration into PLC-controlled centralized lubrication systems. 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 reducing manual maintenance requirements. The CLA-2 features a 3-liter reservoir and operates under control of a host PLC, which defines both lubrication duration and interval timing based on machine operating conditions.

The pump is controlled by a PLC digital output that initiates lubrication cycles, with the host controller determining the appropriate lubrication schedule. Maximum running time per cycle is ≤ 2 minutes, with minimum interval time of ≥ 2 minutes. The CLA-2 is equipped with a low oil level alarm output that signals the PLC when reservoir refilling is required, an automatic pressure relief system that depressurizes upon pump stop, and a thermal overload protector for motor protection.

Technical Specifications

Key Features

• PLC-controlled operation allows the host machine controller to set lubrication duration and interval timing for flexible lubrication strategies.

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

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

• Low oil level alarm output enables remote monitoring of lubricant supply for timely refilling.

• Automatic pressure relief releases residual pressure after pump stop, preventing leakage from metering devices.

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

• 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.

• Manual override switch enables forced lubrication during system setup and maintenance.

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

Applications

The CLA-2 3L PLC-controlled lubricating pump is deployed across a wide range of industrial machinery requiring automatic centralized lubrication. Typical applications include CNC machining centers lubricating linear guideways, ballscrews, spindle bearings, and rotary tables. In stamping presses, the CLA-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 for lubrication of platens, toggle mechanisms, and injection units; packaging machinery for cam followers, chain drives, and seal bars; and material handling equipment for conveyor bearings and drive chains. The pump's compatibility with TF series metering valves enables progressive lubrication systems where metered quantities are sequentially delivered to multiple lubrication points.