Leynow Three-stage High-Pressure Blower_4HB Three-stage Impeller_1040mbar Ultra-high Pressure Difference_Specially for Long Pipelines and High Resistance

Common Working Condition Challenges of Three-stage High-Pressure Blowers

Long Pipelines and High Resistance, Insufficient Pressure Difference of Single-stage and Two-stage Models

Long pipelines, many elbows, high system resistance, insufficient negative pressure of single-stage or two-stage blowers, unable to suction materials, unstable adsorption, and strenuous aeration.

High Negative Pressure Requirements, Ordinary Blowers Difficult to Meet

Working conditions such as deep pool aeration, long-distance vacuum feeding, and harsh adsorption require higher negative pressure. Ordinary blowers have limited output, compromising process effects.

Air Source Contains Oil, Contaminating Workpieces and Materials

Ordinary air sources output airflow with oil mist, contaminating processed workpieces and conveyed materials, affecting finished product quality and subsequent processes.

Difficult to Match Accessories, Limited Equipment Integration

Troublesome procurement of filters, pressure relief valves, and silencers; the complete machine is relatively large and difficult to embed inside automated complete equipment.

Core Advantages of Leynow Three-stage High-Pressure Blower

Three-stage Impeller Series, Ultra-high Pressure Difference Output

4HB three-stage structure, three-stage impeller stage-by-stage boosting, higher pressure difference; suitable for harsh working conditions of long pipelines, high resistance, and high negative pressure, making up for the insufficient output of single-stage and two-stage models under extreme working conditions.

Oil-free Operation, Clean Output Airflow

No mechanical contact between the impeller and pump chamber, no lubricating oil required in the pump chamber, clean output airflow, suitable for occasions with air source cleanliness requirements such as food, printing, and electronics.

Dual-purpose Blowing and Suction in One Machine, Free Switching Between Positive and Negative Pressure

The same three-stage vortex air pump can perform negative pressure suction for high negative pressure adsorption and long-distance material suction, and also positive pressure high-pressure blowing for long pipeline blow-drying and deep pool aeration; one machine covers two processes, reducing procurement and space occupation.

Industrial Motor, Capable of Long-term Continuous Operation

IP54 protected, Class F insulated motor, optimized heat dissipation duct; complete machine dynamic balance calibration, supporting long-term continuous operation under conditions of good ventilation and heat dissipation and matched working conditions.

Compact Structure, Convenient for Equipment Integration

Horizontal base design, compact body, can be directly embedded into automation equipment cabinets or inside complete machines, serving as a built-in negative/positive pressure air source unit.

Complete Accessories, Selection and Maintenance Support

Original factory accessories such as intake filters, pressure relief valves, and silencers can be supplied as a set; selection calculation based on air volume, pressure, and pipeline resistance, with troubleshooting and factory repair and maintenance provided.

Product Specifications & Parameters

Product Model	Motor Power	Ultimate Vacuum	Rated Voltage	Rated Flow	Rated Current	Industry Application

Working Principle of Leynow Three-stage High-Pressure Blower

Leynow three-stage high-pressure blowers (4HB series vortex air pumps / side channel blowers) adopt a three-stage impeller series structure. Gas circulates and pressurizes between each stage impeller and the annular side chamber, gradually increasing pressure before being discharged from the outlet.
The three-stage impeller series makes the overall pressure difference higher, maintaining stable output even under long pipeline, high resistance, and high negative pressure working conditions; the air inlet forms negative pressure suction, and the air outlet forms positive pressure blowing, so one machine has both suction and blowing functions.
The impeller operates without contact with the pump chamber, no lubricating oil is required in the pump chamber, and the output airflow is clean; the complete machine has a simple structure and low daily maintenance, suitable for continuous operation of industrial equipment.

Technical Information & Materials

Compiled technical reference materials related to vacuum pumps for selection, equipment commissioning, and troubleshooting.

Project Selection Reference Suggestions

Confirm core indicators: required ultimate vacuum, actual pumping volume;
Clarify the extracted medium: water vapor, dust, corrosive gases, etc., to determine whether filtration, condensation, or explosion-proofing is needed;
Confirm the usage environment: indoor/outdoor, on ships, high temperature and humidity, dust environment;
Usage mode: intermittent use or long-term continuous operation;
Standalone equipment or a complete central vacuum station.

Applicable Industries and Typical Processes

Applicable Industries

Aquaculture Industry

Air supply aeration and oxygenation for fish ponds and shrimp ponds, increasing dissolved oxygen in water.

Woodworking CNC Machining Industry

Vacuum adsorption clamping of panels, suction collection of sawdust and dust.

Printing and Packaging Industry

Printing paper adsorption and conveying, bag opening blowing at packaging stations.

Food Processing Industry

Material blow-drying and water removal, vacuum adsorption, guaranteed clean air source.

Plastic Powder Conveying Industry

Negative pressure feeding, suction, and conveying of plastic pellets and powders.

Complete Equipment Integration Industry

Embedded in complete equipment as a built-in negative/positive pressure air source unit.

Typical Processes

Aquaculture Pond Aeration and Oxygenation

Continuous air supply aeration for fish ponds and shrimp ponds, improving dissolved oxygen in water.

Assembly Line Workpiece Blow-drying and Water Removal

High-pressure air knife blow-drying after workpiece cleaning, replacing manual wiping.

Powder and Pellet Vacuum Feeding

Automatic negative pressure feeding and conveying of plastic pellets and powders.

Workstation Dust Extraction and Suction Recovery

Negative pressure suction and collection of dust and debris, improving workshop environment.

Sewage Treatment Stirring and Aeration

Biochemical tank aeration and stirring, assisting sewage oxygenation treatment.

Built-in Air Source Unit for Automation Equipment

Embedded inside complete equipment to provide negative and positive pressure air sources.

Usage Limitations: Not suitable for extracting large amounts of dust, highly corrosive gases, or high-temperature gases; please install an intake filter at the front end for dusty working conditions; it is strictly prohibited to operate with the inlet or outlet blocked, otherwise it will cause internal overheating and damage the motor.
Selection Recommendations: For aeration, blow-drying, and ordinary adsorption, prioritize single-stage models; if there are many pipeline elbows and system resistance is relatively high, consider double-stage; for long pipelines and high resistance negative pressure working conditions, consider 4HB three-stage. Please include pipeline resistance in the calculation during selection, and it is recommended to reserve a 10-20% performance margin.

Customer FAQs

What is the difference between three-stage, single-stage, and two-stage high-pressure blowers? When to choose three-stage?

Single-stage has a one-stage impeller, large air volume and continuous airflow, suitable for flow-oriented working conditions such as aeration and oxygenation, blow-drying and water removal, and ordinary vacuum adsorption; double-stage has two-stage impellers with higher pressure difference, suitable for working conditions with many pipeline elbows and relatively high system resistance; the three-stage 4HB series has three-stage impellers in series, with even higher pressure difference, suitable for harsh processes with long pipelines, high resistance, and high negative pressure, such as long-distance powder vacuum feeding, deep pool aeration, and large-area high negative pressure adsorption. Please include pipeline resistance in the calculation during selection, and it is recommended to reserve a 10-20% margin.

Can a three-stage high-pressure blower suck and blow at the same time?

Yes, the blower has independent air inlet and outlet ports, and can simultaneously perform negative pressure adsorption and positive pressure blowing; note that the inlet and outlet ports must not be directly short-circuited, otherwise it will cause overload and internal overheating.

How to choose the power of a three-stage model? Is 1.5Kw enough?

Power cannot be judged alone; it must be comprehensively judged based on the required air volume, pressure, pipeline length, and number of elbows. Small-scale long pipeline adsorption and small deep pool aeration can consider 1.5-2.2Kw; long-distance powder feeding, large-area high negative pressure adsorption, and deep pool aeration mostly choose 3.7-7.5Kw. Tell us the working condition parameters, and we can assist in matching the model.

Can a three-stage high-pressure blower run continuously for a long time?

Leynow 4HB three-stage industrial models support long-term continuous operation under conditions of good ventilation and heat dissipation, matched working conditions, and unblocked inlet and outlet ports. For dusty working conditions, be sure to install a front-end intake filter and clean the filter element regularly to protect the impeller and motor.

What supporting accessories are needed for a three-stage high-pressure blower?

Common accessories include: intake filter (essential for dust prevention), pressure relief valve (overload protection), silencer (reducing operating noise); Leynow can supply the complete set, and can also provide adapter suggestions according to on-site interface dimensions.

Can you provide accessory supply and repair and maintenance?

Yes. Accessories such as filters, pressure relief valves, and silencers can be supplied separately; we also provide technical consultation, troubleshooting guidance, and factory repair and maintenance services to help equipment resume production as soon as possible.

Working PrincipleOil-Free · Corrosion-Resistant · Intelligent

Leynow Three-stage High-Pressure Blower | 4HB Series Vortex Air Pump

Three-stage High-Pressure Blower

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