Introduction
RHX-Q is a hydraulic-driven dual-power plunger grease pump specially customized for concrete pump trucks & trailer pumps. It features compact size, low noise, stable grease supply and dual oil supply modes (hydraulic automatic drive + manual backup pump). It is non-explosion-proof and cannot be deployed in flammable/hazardous explosive environments.
Technical Data
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Description |
RHX-Q Dual-Power Lubrication Pump |
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Maximum Operating Pressure |
250bar |
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Number of Circulation Ports |
1PCS |
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Number of Synchronization Ports |
2PCS |
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Circulation Port Displacement |
0.2ml/cy |
0.3ml/cy |
0.4ml/cy |
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Synchronization Port Displacement |
0.15ml/cy |
0.2ml/cy |
0.25ml/cy |
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Manual Pump Nominal Pressure |
150bar |
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Manual Pump Displacement |
0.5ml/cy |
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Reservoir Capacity |
4L |
9L |
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Standard Drive Port |
M16X1.5 (Internal taper 24 degrees) |
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Lubricant |
NLGI 000#-0# |
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Features/Equipment Characteristics
- Dual-power integrated design: automatic hydraulic drive + backup manual plunger pump. When the vehicle hydraulic system fails, manual pumping ensures continuous lubrication to avoid equipment abrasion.
- Customized for concrete pump trucks and trailer pumps, perfectly matched with vehicle hydraulic parameters for stable long-term operation.
- Independent dual-circuit outlet layout: 1 circulation port plus 2 synchronous ports, with multiple single-stroke displacement options to meet different lubrication flow demands.
- Built-in safety overflow valve preset at 20MPa, providing reliable overload protection to prevent pipeline burst under excess pressure.
- Compact lightweight integrated structure, low running noise, easy mounting in narrow vehicle installation spaces.
Our Advantages
- Professional tailor-made solution exclusively for concrete pump vehicle lubrication, mature matching performance
- Dual backup oil supply eliminates downtime risks caused by hydraulic system failure
- Stable metering piston structure ensures even, bubble-free grease output without oil starvation
- Factory pre-calibrated 20MPa relief valve, reliable overload protection for vehicle thin pipelines
- Compact lightweight design fits narrow installation spaces on pump trucks
- Modular valve assembly, spare parts are universal with low maintenance cost
FAQ
Q1: What equipment does the RHX-Q lubrication pump apply to?
A1: It is specially developed for concrete pump trucks and concrete trailer pumps, matched with their original hydraulic drive systems.
Q2: What is the core benefit of the dual-power structure?
A2: Under normal working conditions, it automatically operates driven by vehicle hydraulic oil. If the vehicle hydraulic system malfunctions, the built-in manual pump can be used for emergency oil supply to prevent dry friction of mechanical friction pairs.
Q3: What hydraulic pressure range is recommended for daily operation?
A3: The optimal driving pressure is 16–19MPa, and the maximum allowable instantaneous driving pressure is 25MPa. Long-term operation exceeding 25MPa will accelerate component aging; contact us for customized high-pressure versions if needed.
Q4: Can I adjust the overflow valve pressure on my own?
A4: Not recommended. The overflow valve is precisely calibrated to 20MPa before factory delivery. Unauthorized adjustment will lead to insufficient lubrication pressure or pipeline rupture risks.
Q5: Which grease is suitable for winter low-temperature construction?
A5: Only NLGI 000# to 0# lithium grease can be used. Select low-viscosity NLGI 000# grease in cold environments to guarantee smooth grease suction without blockage.
Q6: Why no grease flows out after the pump sits idle for a long time?
A6: Possible causes: grease aging and solidification, or impurities clogging the check valve. You need to open the bottom vent valve to exhaust air, clean the built-in filter screen, and fully replace deteriorated grease.
