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Shandong Changmiaoxin Coal Mine Machinery Co., Ltd. was established on June 20, 2019, as an integrated industrial enterprise specializing in research, design, development, manufacturing, sales, and technological services. The company specializes in the production of lightweight single-piece hydraulic props utilizing advanced materials and modern manufacturing techniques. Its main product lines include various types of single hydraulic props, metal roof beams, idlers, pump stations, and other mine support equipment.

BRW Pumping Station for Mining
Mine emulsion pump is the core equipment of the underground hydraulic support system in coal mines, its main function is to provide high-pressure emulsion for hydraulic supports, single hydraulic
Emulsion Pump Station
Emulsion pump station is the core equipment of the underground hydraulic support system in coal mines, its main function is to provide high-pressure emulsion for hydraulic supports, single hydraulic
BRW Emulsion Pumping Mining
Our BRW Emulsion Pumping Mining is the core equipment of the underground hydraulic support system in coal mines, and its main function is to provide high-pressure emulsion for hydraulic supports,
Coal Mine Emulsion Pump
Coal Mine Emulsion Pump is the core equipment of the underground hydraulic support system in coal mines, and its main function is to provide high-pressure emulsion for hydraulic support, Single
High Pressure Hydraulic Pressure Emulsion Pump
High pressure hydraulic pressure emulsion pump is the core equipment of the underground hydraulic support system in coal mines, and its main function is to provide high-pressure emulsion for

Why Choose Us

R&D Capabilities

We have dedicated many years to the production of coal mine support products and possess extensive R&D experience. We are the first domestic manufacturer to obtain the safety standard for five-meter single hydraulic props. Furthermore, by 2025, we will assist Dongtai Group in developing the six-meter single hydraulic props it needs.

Customization Services

We provide customized product customization and technical parameter adjustments based on the actual operating conditions of our customers' mines, such as dust concentration and groundwater conditions, to ensure product suitability and reliability in complex geological environments.

Quality Control

All products undergo rigorous quality inspections before shipment to ensure compliance with relevant national standards and our company's quality management system requirements, ensuring stable product performance and long-term reliable operation.

Specification

B R W 2 0 0
Project		Numeric value	Unit
Nominal pressure		31.5	MPa
Nominal flow		200	L/min
Pump inlet pressure		Atmospheric
Equipped with a motor	Name	Flameproof three-phase asynchronous motor for underground use in coal mines
	Model	YBK3-315M-4(380/660)	/
	Voltage	380/660	V
	Rotate speed	1486	r/min
	Power	132	kW
Crankshaft speed		563	r/min
Plunger diameter		50	mm
Plunger stroke		66	mm
Number of plungers		3	Piece
Number of teeth in the big gear		55	Piece
Number of pinion teeth		21	Piece
Noise		≤99	dB
Total efficiency		≥83	%
Volumetric efficiency		≥91	%
Working medium		Neutral aqueous solution containing 3%~5% emulsified oil
The nominal flow rate of the unloading valve		200	L/min
The nominal pressure of the unloading valve		40	MPa
The unloading valve sets the pressure		31.5	MPa
The unloading valve restores pressure		22～26.8	MPa
The nominal flow rate of the safety valve		200	L/min
Nominal pressure of the safety valve		40	MPa
Safety valve opening pressure		34.7～36.2	MPa
Accumulator inflation pressure		15～17	MPa
Nominal capacity		25	L
Matching tank volume		1000	L
Weight	Pump sets	2270	kg
	Pump	820	kg
Dimensions of the pump (L×W×H)		1108×913×524	mm
Dimensions of the pump set (L×W×H)		2465×913×1285	mm

Benefits of Pump

Enhanced Efficiency

Ensures consistent and reliable performance, reducing downtime.

Cost-Effectiveness

Minimizes energy consumption and maintenance costs.

Versatility

Adaptable to various industries and applications.

Environmental Friendliness

Promotes the efficient use of resources and reduces waste.

Improved Product Quality

Maintains the stability and consistency of emulsions, ensuring high-quality end products.

Key Structural Components of Pump

Drive Unit: Provides power.

Pump Body: Forms the flow path for the emulsion.

Impeller: The core component,generates centrifugal force for suction and discharge.

Bearings: Support the impeller shaft,ensuring smooth rotation.

Sealing Components: Prevent leakage of high-pressure emulsion,ensuring safety and eficiency.

Basic Principles of Pump

All pumps use basic forces of nature to move a liquid. As the moving pump part (impeller, vane, piston diaphragm,etc.) begins to move, air is pushed out of the way. The movement of air creates a partial vacuum (low pressure) which can be filled up by more air, or in the case of water pumps, water.

Pump Performance

Pumps have strict tolerances and precise conditions under which they must operate to generate the Best Efficiency Point or BEP. Pump performance factors include:

How high the pump will sit above the water source (static suction head).

How high the discharge end is above the pump (static discharge head)

Determine what the discharge capacity at gallons per minute (GPM).

Friction losses to fluid viscosity, type and length of hose or pipe.

Altitude above sea level where the pump will operate.

Discharge Head or height of the discharge above the pump.

Restrictions, couplers, elbows and valves.

Precautions for Installation Pump

Preparation

Check equipment accessories, prepare tools, clean the site, determine location.

Installation

Install the base horizontally and securely;hoist and level the pump body; correctly connect inlet and outlet pipelines,ensuring no leaks.

Commissioning

Run the pump and check pressure,flow rate, temperature, noise, and vibration for normalcy. Safe operation must be maintained throughout.

After-Sales Service Is Solemnly Promised

Shandong Changmiaoxin Coal Mining Machinery Co., Ltd. attaches great importance to the after-sales service of products, under the premise of high-quality products, after-sales service is our company's first important commitment.The company has a professional after-sales service team, which region the products are sold to, which region has special after-sales service personnel, and in the sales area to establish offices, so as to help users select and design free of charge, train operators to learn theoretically, master the technical characteristics of the single pillar, and demonstrate ground operation.

Packaging and Shipping

Packaging	Fixed packaging
Transportation methods	Road transport, rail transport, sea transport

Our Certificate

productcate-1-1

FAQ

Q: How does a pump work simple?

A: All pumps use basic forces of nature to move a liquid. As the moving pump part (impeller, vane, piston diaphragm,etc.) begins to move, air is pushed out of the way. The movement of air creates a partial vacuum (low pressure) which can be filled up by more air, or in the case of water pumps, water.

Q: How does a pump create pressure?

A: A pump produces liquid movement or flow: it does not generate pressure. It produces the flow necessary for the development of pressure which is a function of resistance to fluid flow in the system.

Q: What are the basics of a pump?

A: A pump is a mechanical device that is used to give energy to a flowing liquid such that the liquid can overcome the resistance in the hydraulic system. Simply the pump converts mechanical energy into hydraulic energy given to the flow. Pumping oil and petroleum derivatives from production or storage site to the market.

Q: Do pumps give flow or pressure?

A: A pump's main job is to provide flow, the pressure that we see in the line is not caused just because the pump is running, rather the pressure is caused because the pump is providing flow. The more flow the pump provides, the greater volume of fluid within the system, and this then builds pressure.

We're well-known as one of the leading pump manufacturers and suppliers in China. Please feel free to buy high quality pump from our factory. Good service and reasonable price are available.

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