QJDL Lubrication Solenoid Valve

QJDL Series Lubrication Solenoid Valve

The QJDL series solenoid lubrication system consists of several parts, including a host computer-based human-machine interface (HMI) system, an automatic grease replenishment station, an electric high-pressure lubrication station, and an electromagnetic lubrication device. Each part is modular, with the final execution unit being the quantitative electromagnetic lubrication integration. The functions of each part are as follows: Host Computer-Based Human-Machine Interface (HMI): The HMI hardware consists of an industrial computer, a monitor, and communication devices. Through the HMI, operators can monitor and operate the lubrication system on-site. One HMI system can monitor multiple lubrication systems. Automatic Grease Replenishment Station: The grease replenishment station is mainly used to replenish the grease required by each integrated lubrication station.

  • Body Material: Forged Brass

  • Working Pressure: 0–10 Bar

  • Voltages: 24VDC /  220VAC
  • Fluid Media: Grease Oil

How to order

QJDL order code
Item Model Voltage Item Model Voltage
1 QJDZ-1AC 220VAC 7 QJDL-1AC 220VAC
2 QJDZ-2AC 220VAC 8 QJDL-2AC 220VAC
3 QJDZ-3AC 220VAC 9 QJDL-3AC 220VAC
4 QJDZ-1DC 24VDC 10 QJDL-1DC 24VDC
5 QJDZ-2DC 24VDC 11 QJDL-2DC 24VDC
6 QJDZ-3D0 24VDC 12 QJDL-3DC 24VDC

Valve Dimensions

QJDL solenoid valve size

Solenoid Valve Production Units

QJDL Lubrication Solenoid Valve Set
QJDL lubrication solenoid valve production

Lubrication Solenoid Valve Introduction

QJD Series Electromagnetic Lubricator Intelligent Lubrication System

The QJD series intelligent lubrication system consists of several modular units, including:

  1. Upper-level HMI monitoring system

  2. Automatic grease replenishment station

  3. Electric high-pressure lubrication station

  4. Electromagnetic lubrication unit

The quantitative electromagnetic lubricator assembly serves as the final execution unit, responsible for accurate metered lubrication delivery.


System Component Functions

1. Upper-Level HMI Monitoring System

Built with an industrial-grade computer, display, and communication modules.
Through the HMI interface, operators can monitor and control the lubrication process in real time.
A single monitoring system can manage multiple lubrication stations simultaneously.

2. Automatic Grease Replenishment Station

Responsible for continuously supplying grease to all lubrication stations, ensuring stable operation without frequent manual addition.

3. Electric High-Pressure Lubrication Station (Core Power Module)

Equipped with two high-pressure plunger pumps, load-measuring module, pressure sensors, and a control cabinet.

  • Provides the main power source for the lubrication system.

  • Communicates with upper-level controls for interlocking and coordination.

  • Collects and feeds back operating status from lubrication points.

Operating Logic:

  • Two pumps operate in rotation (one active, one standby).

  • Low oil level triggers automatic replenishment from the grease supply station.

  • When system pressure is low, the pump starts automatically; when the preset pressure is reached, it stops.

4. Electromagnetic Lubrication Unit (Execution + Feedback Monitoring)

Composed of a metering module, solenoid valve, and intelligent control processor.

  • The solenoid valve performs quantitative lubrication discharge.

  • The smart processing unit controls valve operation and receives sensor signals.

  • Working status is fed back to the main control system for intelligent lubrication management.