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WXZ Oil-Free Vacuum Pump

Operating Parameters 1. Flow Rate: 1–2 l³/s 2. Pressure: 1.5×10⁴ pa 3. Power: 120–250 KW 4. Discharge Diameter: 5.5–12 mm

Commodity name： WXZ Oil-Free Vacuum Pump

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Description

WXZ Oil-free Direct-coupled Rotary Vane Vacuum Pump
1. Product Overview
The WXZ oil-free direct-coupled rotary vane vacuum pump is a pure oil-free, lubrication-free, low-pulse single-stage vacuum equipment supporting continuous no-load operation. Different from traditional oil-sealed vacuum pumps that rely on vacuum oil for lubrication and are prone to oil vapor pollution and frequent maintenance, this pump adopts a dry oil-free design. It requires no vacuum oil for auxiliary operation, completely eliminating oil mist leakage and workpiece pollution, making it professional core equipment for high-precision and ultra-clean vacuum working conditions.
Adopting an integrated motor direct-coupled structure and optimized multi-blade high-speed stable operation technology, the pump effectively solves the problems of large pulse fluctuation and unstable working conditions of traditional pumps. It features compact structure, light weight and small overall size, and supports continuous open atmospheric no-load operation with far stronger adaptability than ordinary vacuum pumps. Developed exclusively for oil-free and high-cleanliness industrial scenarios, it can stably extract gas from closed containers to build a pure vacuum environment. It can also be used as a front-stage pre-vacuum pump for various high-end vacuum equipment, widely applied in clean vacuum operations in medical treatment, laboratory research, precision manufacturing, refrigeration maintenance and other fields.
2. Core Product Advantages
Full Oil-free Dry Operation, Zero-pollution Clean Vacuum
The core advantage of this pump is 100% oil-free operation. No vacuum oil is required for lubrication, sealing or cooling. It produces no oil vapor, no oil mist leakage and no oil backflow during operation. It fundamentally solves the industry pain point that traditional oil-sealed vacuum pumps easily pollute pump cavities, workpieces, experimental media and working environments. It maintains an ultra-clean vacuum state all the time, fully adapting to all precision processes and production scenarios that prohibit oil pollution.
Continuous Atmospheric Operation with Strong Condition Adaptability
Breaking the limit that ordinary vacuum pumps cannot operate under open no-load conditions, the WXZ oil-free vacuum pump supports continuous open atmospheric no-load operation without pump stalling, overheating or vacuum attenuation. It realizes flexible start-stop and smooth switching between no-load and load states, adapting to complex working modes such as frequent start-stop, intermittent operation and open pretreatment, greatly improving equipment fault tolerance and scenario adaptability.
Multi-blade High-speed Stable Operation, Pulse-free Air Pressure
Equipped with an optimized multi-blade high-speed rotating structure, it completely avoids the defects of large ventilation pulse fluctuation and unstable vacuum degree of traditional single-blade pumps. The uniform alternate air intake and exhaust of multiple blades effectively offset airflow pulses, ensuring uniform and stable pumping speed with extremely small air pressure fluctuation. It outputs accurate and constant vacuum degree to guarantee the process stability of precision experiments and fine processing.
Compact Direct-coupled Structure, Lightweight and Easy Installation
The integrated motor direct-drive design eliminates redundant transmission components such as belts and couplings. It features smaller overall dimension, lighter weight and neat layout with minimal floor space. No complex installation and commissioning are required. It can operate immediately after power-on with portable and mobile performance, perfectly suitable for desktop laboratory, small production line and on-site maintenance scenarios.
Low-frequency Maintenance, Greatly Reduced Operating Costs
Compared with oil-sealed vacuum pumps that require regular oil level inspection, oil replacement and dirt cleaning, the oil-free design completely gets rid of oil dependence. It needs no oil refilling, oil replacement and oil maintenance, significantly reducing daily maintenance frequency and consumable costs. Long-term stable operation only requires routine dust prevention, realizing zero-threshold maintenance with labor-saving and long-lasting performance.
3. Working Principle
The WXZ oil-free direct-coupled rotary vane vacuum pump adopts a dry positive displacement ventilation principle. The motor directly drives the multi-blade rotor to rotate at high speed. The precise cooperation between high-precision rotary vanes and pump cavity realizes oil-free friction sealing. During rotor rotation, the pump cavity volume expands and contracts periodically and stably to complete automatic air suction, compression and exhaust cycles. The alternate operation of multiple blades effectively eliminates airflow pulse fluctuation, keeping the pumping speed and vacuum pressure in a constant stable state.
The whole machine operates in a full dry and oil-free mode without oil-assisted sealing and lubrication. The precise mechanical structure realizes closed cavity ventilation without any oil vapor pollution. Meanwhile, the equipment supports continuous open atmospheric operation with stable switching between no-load and load conditions. It can continuously extract gas from closed containers to quickly build a pure, stable and impurity-free high-cleanliness vacuum environment.
4. Wide Application Scope
With the core advantages of oil-free zero pollution, pulse-free stable vacuum, continuous no-load operation, maintenance-free performance and compact size, this pump is dedicated to various high-cleanliness, high-precision and lightweight vacuum operation scenarios, meeting refined process requirements of multiple industries.
Scientific Research & Physical and Chemical Experiments: Applied to laboratory vacuum defoaming, vacuum drying, negative pressure extraction and micro-cavity vacuum experiments. The oil-free and pollution-free feature ensures medium purity and experimental data accuracy, complying with precision experimental standards.
Medical Instruments & Precision Equipment: Suitable for medical negative pressure suction devices, vacuum supporting for precision testing instruments and vacuum pretreatment of sterile equipment. Its clean and oil-free performance meets strict cleanliness specifications for medical and precision equipment.
Refrigeration & Electrical Maintenance: Used for vacuum pumping, dehumidification and negative pressure leakage detection of air conditioners, refrigerators and refrigeration units. Portable, stable and oil-free, it is professional clean vacuum equipment for refrigeration maintenance industry.
Light Industry Packaging & Printing: Applied to oil-free vacuum packaging of small products, plastic vacuum blister forming and negative pressure auxiliary operation of printing machinery. It completely avoids oil contamination on products and improves finished product cleanliness and yield.
High-end Vacuum Equipment Supporting: It can be used as a front-stage pre-vacuum pump for oil booster pumps, oil diffusion pumps, molecular pumps and other high-end precision vacuum equipment, quickly building a front-end clean vacuum environment and ensuring stable and clean operation of high-end vacuum systems.
5. Working Conditions & Operation Prohibitions
Applicable Working Conditions: Suitable for clean air extraction of various closed containers. Customized for industrial scenarios requiring strict oil-free steam cleanliness, it supports long-term continuous no-load and loaded operation with stable performance and wide applicability.
Operation Prohibitions: It is forbidden to extract gas corrosive to ferrous metals or gas that may chemically react with equipment accessories. Extracting dusty, granular and impure gas is prohibited to avoid wear and jamming of precision pump cavity structures. High-oxygen, explosive and toxic gas extraction is strictly forbidden to eliminate potential safety hazards. This pump is only used for vacuum extraction of closed containers to obtain negative pressure, and shall not be used as a gas transmission pump for gas delivery between different containers.

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Company Information

Hebei Xingou Machinery Equipment Co., Ltd., is a large-scale slurry pump manufacturing enterprise. Xingou provides slurry pump and special alloy parts that feature a high performance and a wearing and corrosion resistance. First established in 1998, we now own three production bases with a dredge pump, desulphurization pump and slurry pump production base located in Shijiazhuang Development Zone, covering 46000 square meters.
Xingou can complete the research and development of new products, due to our self-owned pump test station, which carries out tests with extreme accuracy to ensure all pumps meet international standards, and allow us to offer only the best products and materials to meet different operating conditions. We have a large mold database that includes a full range of advanced aluminum molds used to produce various industrial pump castings. Our company has an extensive inventory of standard pieces, allowing us to keep a delivery period to within 10 days of the order being placed. If standard products don’t meet your needs, supply us with special design drawings, and we will carry out custom OEM orders for even the most advanced EPC casing line. We work with numerous well-known domestic names, including the Waterway Bureau, mining companies, desulphurization companies and more, as well as partnerships with international corporation customers.
Our product line includes pumps and accessories, and OEM services, and has been sold around the world to customers from North and South America, Africa, Russia, Europe and Southeast Asia. Come check us out today, and let Xingou show you what we have to offer for all of your slurry pump needs.

Our Services

1. Processing with supplied drawing

2. Processing with supplied samples

3. Produce all kinds of anti abrasive spare parts except for pump

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