BIJUR DELIMON BMB Grease Pump

Overview Electric Grease Pump is a high-pressure centralized lubrication system designed for medium and large industrial machinery requiring continuous, reliable grease delivery. Featuring a positive-displacement plunger mechanism driven by a geared AC motor, this pump delivers lubricant at pressures up to 400 bar (5,800 PSI) through single-line, dual-line, or progressive divider valve networks. The integrated design combines the pump head, reduction motor, and lubricant reservoir in a standalone package, eliminating the need for separate component sourcing and complex field assembly. An adjustable relief valve protects the system from over-pressurization, while multiple reservoir capacities and motor configurations allow matching to the exact demands of your lubrication circuit. Compatible with greases up to NLGI Grade 3, fluid greases, and industrial oils with viscosity ≥40 cSt, this pump serves manufacturing plants, mining operations, fleet maintenance facilities, and heavy equipment installations where automated lubrication is essential for bearing life and uptime. Technical Specifications Parameter Specification Maximum Working Pressure 400 bar (5,800 PSI) Adjustable Relief Valve Range 0–450 bar (default 400 bar) Flow Rate 2 L/h (34 ml/min) or 4 L/h (67 ml/min) Reservoir Capacity 8L, 15L, or 30L Motor Power (50 Hz) 0.18 kW or 0.37 kW, 220–240/380–415V, 63 rpm Motor Power (60 Hz) 0.42 kW, 243–277/420–480V Fluid Temperature Range -20°C to 80°C (-4°F to 176°F) Grease Compatibility Up to NLGI Grade 3, fluid greases, oils ≥40 cSt Lubrication System Types Single-line, dual-line, progressive dividers, injectors Motor Protection Class ISO Class F insulation Mounting Flange-mounted with integrated reduction gear Operating Principle The pump operates through a positive-displacement plunger mechanism driven by an eccentric cam. A geared AC motor rotates the cam, which actuates a series of pistons in sequence. On the suction phase, each piston retracts, drawing lubricant from the reservoir through an inlet valve. On the discharge phase, the piston advances, closing the inlet and opening the outlet to force lubricant into the distribution line. This valveless positive-displacement design ensures controlled, continuous flow regardless of back-pressure variations in the distribution network. The output is pulsation-damped by the multi-piston sequential firing order, providing stable pressure to downstream metering valves and divider blocks. Key Features Standalone Integrated Package The pump, motor, and reservoir are supplied as a single pre-assembled unit. This eliminates field alignment errors, reduces installation time, and ensures factory-tested compatibility between the motor torque curve and the pump displacement requirement. Positive-Displacement Plunger Mechanism The eccentric cam-driven piston design provides accurate, repeatable volume delivery per revolution. Unlike gear or vane pumps that slip at high viscosity, the plunger mechanism maintains rated output with thick NLGI Grade 3 greases and cold-start conditions. Adjustable Relief Valve The built-in overflow valve is adjustable from 0 to 450 bar, with a standard factory setting of 400 bar. When used with hydraulic directional valves in dual-line systems, the recommended setting should not exceed 350 bar to prevent valve seat damage. The relief valve protects the pump, distribution lines, and metering components from pressure spikes during cold starts or blocked-point conditions. Multiple Reservoir and Motor Options Three reservoir capacities (8L, 15L, 30L) and two motor power levels (0.18 kW for 2 L/h, 0.37 kW for 4 L/h) allow precise matching to system size and refill frequency requirements. An optional ultrasonic level switch provides remote low-level signaling to prevent dry-running operation. Available Configurations Reservoir Motor Power Flow Rate Level Switch 8L 0.18 kW 2 L/h (34 ml/min) Optional 15L 0.18 kW 2 L/h (34 ml/min) Optional 30L 0.18 kW 2 L/h (34 ml/min) Optional 8L 0.37 kW 4 L/h (67 ml/min) Optional 15L 0.37 kW 4 L/h (67 ml/min) Optional 30L 0.37 kW 4 L/h (67 ml/min) Optional Each pump includes a pressure gauge assembly, mounting kit, and reservoir fill fitting. Level switches are ultrasonic type (non-mechanical) for reliable high-viscosity fluid detection. Applications Manufacturing Plants: Centralized lubrication for presses, conveyors, machine tools, and assembly line equipment with multiple bearing points. Mining and Quarrying: Heavy-duty greasing for crushers, screens, conveyors, and mobile mining equipment in high-contamination environments. Fleet and Vehicle Maintenance: Automated chassis and wheel bearing lubrication for bus depots, truck terminals, and rail yards. Steel and Metals Production: High-temperature bearing lubrication in rolling mills, continuous casters, and furnace equipment. Wind Energy: Main bearing, yaw bearing, and pitch bearing lubrication for wind turbines requiring infrequent but high-volume grease delivery. Mobile Equipment: Refilling and auxiliary greasing systems for excavators, loaders, and cranes with onboard lubrication circuits. System Compatibility This electric grease pump is compatible with the following centralized lubrication architectures: Single-Line Systems: Direct supply to single-line resistance (SLR) metering valves or series progressive divider valves. Dual-Line Systems: When paired with a 4/2-way or 3/2-way directional valve, the pump alternates pressure between two main supply lines to serve large-circuit dual-line networks. Progressive Divider Systems: Supplies a single inlet to progressive divider manifolds that sequentially meter grease to multiple points in fixed volume ratios. Injector Systems: Provides the pressure source for single-line injector systems where each injector discharges a fixed volume per pressure cycle. Installation and Commissioning Mounting: Secure the pump to a rigid base or equipment frame using the supplied mounting kit. Ensure the motor ventilation is not obstructed and the reservoir fill cap is accessible for maintenance. Electrical Connection: Connect to the specified three-phase voltage (220–240/380–415V for 50 Hz, 243–277/420–480V for 60 Hz). Verify rotation direction is counterclockwise as viewed from the motor fan end. Incorrect rotation will damage the cam mechanism. Reservoir Filling: Fill with clean, specified lubricant through the top fill port. Do not overfill; leave 10% headspace for thermal expansion. Replace the breather cap after filling. Relief Valve Setting: Adjust the relief valve to the system requirement. For single-line systems, 400 bar is standard. For dual-line systems with hydraulic directional valves, do not exceed 350 bar to protect valve seats. Line Connection: Connect the pump outlet to the distribution network using high-pressure hose or rigid tubing rated for a minimum of 500 bar working pressure. Purge the system of air before pressurizing bearings. Priming: Run the pump with the relief valve set to minimum until consistent grease discharge is confirmed at the farthest metering valve. Gradually increase pressure to the operating setpoint. Maintenance Requirements Reservoir Monitoring: Check lubricant level weekly. If equipped with the ultrasonic level switch, verify alarm function monthly. Never allow the pump to run dry; air ingress into the plunger chamber causes cavitation damage and requires full disassembly to purge. Relief Valve Inspection: Test the relief valve opening pressure quarterly by temporarily increasing pump pressure against a closed circuit. If the valve does not open within ±5% of the setpoint, clean or replace the valve seat and spring. Seal Replacement: Inspect plunger seals every 2,000 operating hours or annually. Replace immediately if grease appears in the motor housing or reduction gear chamber. Seal kits are available for field service without removing the pump from its mounting. Motor Lubrication: The reduction gear is factory-filled and sealed for life under normal conditions. Change the gear oil after the first 10,000 hours of operation, then every 5,000 hours thereafter in heavy-duty or high-temperature environments. Pressure Gauge Verification: Calibrate the system pressure gauge annually against a certified reference gauge. Inaccurate pressure indication leads to incorrect relief valve settings and potential over-pressurization of distribution lines. How to Order To receive an accurate quotation, please provide the following information: Required flow rate: 2 L/h (0.18 kW) or 4 L/h (0.37 kW) Reservoir capacity: 8L, 15L, or 30L Electrical supply: Voltage, frequency (50 Hz or 60 Hz), and phase Lubricant type: NLGI Grade 1, 2, or 3 grease; fluid grease; or oil viscosity Lubrication system type: Single-line, dual-line, progressive, or injector Number of lubrication points and total line length Level switch requirement: Yes/No Required accessories: Pressure gauge, mounting kit, directional valves, high-pressure hoses, filters Operating environment temperature range Quantity and delivery schedule Our engineering team will confirm motor sizing, relief valve setting recommendations, and system compatibility, and provide a detailed quotation with dimensional drawings within 24 hours. Frequently Asked Questions What is this electric grease pump used for? This is a high-pressure electric plunger pump designed for centralized lubrication of medium to large industrial machinery. It delivers grease or oil at up to 400 bar through distribution networks to multiple bearing points, eliminating manual greasing and ensuring consistent lubricant intervals. What are the key technical specifications? Maximum working pressure is 400 bar (5,800 PSI) with an adjustable relief valve range of 0–450 bar. Flow rate options are 2 L/h (34 ml/min) or 4 L/h (67 ml/min). Reservoir capacities are 8L, 15L, or 30L. The motor is available in 0.18 kW or 0.37 kW (50 Hz) and 0.42 kW (60 Hz) configurations. Operating fluid temperature range is -20°C to 80°C. What grease types does the pump support? The pump handles greases up to NLGI Grade 3, fluid greases, and industrial oils with viscosity ≥40 cSt. This includes standard lithium complex, calcium complex, and EP greases, as well as synthetic formulations. For very high-viscosity or solid-additive greases, consult our engineering team to confirm plunger and seal compatibility. How does the pump mechanism work? A geared AC motor drives an eccentric cam that actuates multiple pistons in sequence. Each piston draws lubricant from the reservoir on the retraction stroke and forces it into the discharge line on the compression stroke. This positive-displacement design ensures accurate volume delivery per revolution and maintains rated output even with thick greases and high back-pressure. What lubrication systems is it compatible with? The pump is suitable for single-line resistance systems, dual-line systems (when paired with 4/2-way or 3/2-way directional valves), progressive divider valve systems, injector systems, and series progressive valve networks. It can also serve as a mobile refilling pump for auxiliary greasing applications. What motors and voltages are available? For 50 Hz operation: 220–240/380–415V three-phase, 0.18 kW or 0.37 kW, 63 rpm output with ISO Class F insulation. For 60 Hz operation: 243–277/420–480V three-phase, 0.42 kW. The motor is flange-mounted with an integrated reduction gear for compact installation. Verify rotation direction is counterclockwise before commissioning. How do I install and commission the pump? Mount the pump securely on a rigid base with access to the reservoir fill port. Connect the specified three-phase electrical supply. Fill the reservoir with clean lubricant. Connect the outlet to the distribution network using high-pressure hose or tubing rated for 500 bar minimum. Set the adjustable relief valve to the system requirement (400 bar standard for single-line; 350 bar maximum for dual-line with hydraulic valves). Prime the system by running at low pressure until grease discharges at all points, then increase to operating pressure. What are common applications? Typical applications include industrial manufacturing machinery, mining equipment, fleet vehicle maintenance bays, steel and metal production lines, wind turbine main bearings, and mobile construction equipment. Any installation with multiple lubrication points requiring automated, timed, or high-pressure grease delivery is a suitable candidate. What maintenance is required? Monitor the reservoir level weekly and never allow dry running. Test the relief valve function quarterly. Inspect plunger seals every 2,000 hours and replace if grease contaminates the motor or gear housing. Change the reduction gear oil after the first 10,000 hours, then every 5,000 hours in heavy-duty service. Calibrate the pressure gauge annually against a certified reference. What accessories are included or recommended? Each pump includes a pressure gauge assembly, mounting kit, and reservoir fill fitting. Recommended accessories include an ultrasonic level switch for low-level alarm, hydraulic directional valves (4/2-way or 3/2-way) for dual-line systems, high-pressure hoses rated for 500 bar, in-line filters to protect metering valves, and progressive divider manifolds for multi-point distribution. Related: Grease Pump hub — types, selection guides, and troubleshooting.