China manufacturer Small Mini Oil Free Piston Rocking Oilless Vacuum Pump for Suction Machines with Best Sales

Product Description

oilless oil free piston rocking vacuum pump for suction machines

Oil-less piston Vacuum Pumps / Air Compressors

PRANSCH oil-less rocking piston pump and air compressor combines the best characteristics of traditional piston pumps(air compressor) and diaphragm pumps into small units with excellent features.

  1. Light weight and very portable
  2. Durable and near ZERO maintenance
  3. Thermal protection (130 deg C)
  4. Power cord with plug, 1m length
  5. Shock mount
  6. Silencer – muffler
  7. Stainless steel vacuum and pressure gauge, both with oil damping
  8. Two stainless steel needle valves each with lock nut.
  9. All nickel plated fittings
  10. Power supply 230V, 50/60 Hz

This series is ideal for use in applications where oil-mist is undesirable. For examples, pressure/vacuum filtration, air sampling, water aeration, flame photometer, etc.


Model Frequency Flow Pressure Power Speed Current Voltage Heat Sound Weight Hole Installation Dimensions
Hz L/min Kpa Kw Min-1 A V 0 C db(A) Kg MM MM
PM200V 50 33 -84 0.10  1380 0.45  210/235 5-40 48 1.8  5 L100xW74
60 50 -84 0.12 1450 0.90  110/125 5-40 48 1.8  5
PM300V 50 66 -86 0.12 1380 0.56  210/235 5-40 50 3.2  6 L118xW70
60 75 -86 0.14 1450 1.13  110/125 5-40 50 3.2  6
PM400V 50 80 -92 0.32 1380 0.95  210/235 5-40 56 6.0  6 L153xW95
60 92 -92 0.36 1450 1.91  110/125 5-40 56 6.0  6
PM550V 50 100 -92 0.32 1380 1.50  210/235 5-40 56 6.0  6 L148xW83
60 110 -92 0.36 1450 3.10  110/125 5-40 56 6.0  6
PM1400V 50 166 -92 0.45 1380 1.90  210/235 5-40 58 8.5  6 L203xW86
60 183 -92 0.52 1450 4.10  110/125 5-40 58 8.5  6
PM2000V 50 216 -92 0.55 1380 2.50  210/235 5-40 60 9.0  6 L203xW86
60 250 -92 0.63 1450 5.20  110/125 5-40 60 9.0  6
HP2400V 50 225 -94 0.90  1380 3.30  210/235 5-40 75 17.0  7 L246xW127
60 258 -94 1.10  1450 6.90  110/125 5-40 75 17.0  7
PM3000V 50 230 -94 1.10  1380 4.20  210/235 5-40 76 17.5  7 L246xW127
60 266 -94 1.30  1450 8.50  110/125 5-40 76 17.5  7

Why use a Rocking Piston Product?
Pransch oilless Rocking Piston air compressors and vacuum pumps, available in single, twin, miniature, and tankmounted
styles, are the perfect choice for hundreds of applications. Choose from dual frequency, shaded pole,
and permanent split capacitor (psc) electric motors with AC multi-voltage motors to match North American,
European, and CHINAMFG power supplies. A complete line of recommended accessories as well as 6, 12, and
24 volt DC models in brush and brushless types are also available.

The rocking piston combines the best characteristics of piston and diaphragm air compressors into a small unit
with exceptional performance. Air flow capabilities from 3.4 LPM to 5.5 CFM (9.35 m3/h), pressure to 175 psi
(12.0 bar) and vacuum capabilities up to 29 inHg (31 mbar). Horsepowers range from 1/20 to 1/2 HP
(0.04 to 0.37 kW).

These pumps are made to stand up through years of use. The piston rod and bearing assembly are bonded
together, not clamped; they will not slip, loosen, or misalign to cause trouble.

Clean Air
Because CHINAMFG pumps are oil-free, they are ideal for use in applications in laboratories, hospitals, and the
food industry where oil mist contamination is undesirable.


  1. Transportation application include:Auto detailing Equipment,Braking Systems,Suspension Systems,Tire Inflators
  2. Food and Beverage application include:beverage dispensing,coffee and Espresso equipment,Food processing and packaging,Nitrogen Generation
  3. Medical and laboratory application include:Body fluid Analysis equipment,Dental compressors and hand tools,dental vacuum ovens,Dermatology equipment,eye surgery equipment,lab automation,Liposuction equipment,Medical aspiration,Nitrogen Generation,Oxygen concentrators,Vacuum Centrifuge,vacuum filtering,ventilators
  4. General industrial application include:Cable pressurization,core drilling
  5. Environmental application include:Dry sprinkler systems,Pond Aeration,Refrigerant Reclamation,Water Purification Systems
  6. Printing and packaging application include:vacuum frames
  7. material Handling application include:vacuum mixing

What is Rocking piston type dry vacuum pumps?

Rocking Piston type dry vacuum pump is a mechanical vacuum pump that transfers gas by the reciprocating motion of a piston interlocking with an eccentric rotating shaft.

Features of Rocking piston type dry vacuum pumps

Since this is an oil-less pump, backflow of air through the sliding part between the cylinder and piston ring is unavoidable. Because of its simple structure, this pump has low ultimate pressure. However, it can obtain stable pressure in a low vacuum region.
Some models can also be used as a pressurizing source for compressors. The pump is widely used in printed board mounting equipment, vacuum packaging machines, material adsorption transfer equipment, labeling machines, printing ink degassing machines, printing machines, photograph plate making machines, screen printing machines, degassing machines, burying machines, baking furnaces, suction machines, automobile exhaust gas analyzers, refrigerant recovery device, plasma cutting equipment.

Strength: The pump has a simple structure and is easy to maintain.
Weakness: The pump can not obtain a high vacuum.


Some models can also be used as a pressurizing source for compressors. The pump is widely used in printed board mounting equipment, vacuum packaging machines, material adsorption transfer equipment, labeling machines, printing ink degassing machines, printing machines, photograph plate making machines, screen printing machines, degassing machines, burying machines, baking furnaces, suction machines, automobile exhaust gas analyzers, refrigerant recovery device, plasma cutting equipment.

Mechanism of Rocking piston type dry vacuum pumps


When the eccentric cam directly connected to the motor rotates, the piston moves up and down in the cylinder while swinging. The space inside the cylinder changes due to the vertical movement of the piston, and the gas is transported by repeating intake, compression and exhaust.

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Oil or Not: Oil Free
Structure: Reciprocating Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump
Working Conditions: Dry


small vacuum pump

What are the cost considerations when purchasing or installing small vacuum pumps?

When purchasing and installing small vacuum pumps, there are several cost considerations to keep in mind. These costs can vary based on factors such as the type of pump, application, and installation requirements. Here are key cost considerations:

1. Initial Purchase Cost:

The initial purchase cost of the vacuum pump is a significant factor. Different types of small vacuum pumps come with varying price tags. For example, diaphragm and rotary vane pumps are generally more affordable than high-end scroll pumps or specialized pumps for specific applications.

2. Pump Type:

The type of vacuum pump you choose will impact the cost. Oil-free pumps may be more expensive upfront but can reduce long-term maintenance and oil-related costs.

3. Application Requirements:

The specific requirements of your application can affect costs. For instance, if your application demands a high vacuum level or precise control, you may need a more advanced and costly pump.

4. Maintenance Costs:

Consider the long-term maintenance costs of the pump. Oil-lubricated pumps require regular oil changes and maintenance, which can add to the overall cost of ownership. Oil-free pumps generally have lower maintenance costs.

5. Installation Expenses:

Installation costs may include labor, materials, and any necessary modifications to your equipment or facility. Some pumps may require specialized installation, especially in industrial or laboratory settings.

6. Operating Costs:

Factor in the ongoing operating costs, such as electricity consumption. Energy-efficient pumps may have lower operational expenses over time.

7. Warranty and Service:

Check the manufacturer’s warranty and the availability of service and spare parts. A longer warranty can provide cost savings by reducing repair expenses.

8. Life Cycle Costs:

Consider the total cost of ownership over the pump’s expected lifespan. A higher upfront cost may be justified if it results in lower overall operating and maintenance costs.

9. Energy Efficiency:

Energy-efficient pumps may have a higher initial cost but can lead to significant savings in energy bills over time.

10. Regulatory Compliance:

Some industries or applications may require compliance with specific regulations or safety standards, which could add costs related to compliance testing and certification.

11. Customization:

If your application requires customized features or configurations, be prepared for potential customization costs.

12. Spare Parts and Accessories:

Consider the availability and cost of spare parts and accessories, as well as any additional components you may need for your specific application.

It’s essential to perform a thorough cost analysis that takes into account both the initial purchase cost and the long-term operating and maintenance expenses. This analysis will help you make an informed decision when selecting a small vacuum pump that aligns with your budget and application requirements.

Additionally, consult with manufacturers or suppliers to obtain detailed cost estimates and explore any available financing options or discounts that may apply to your purchase.

small vacuum pump

What factors should one consider when choosing a small vacuum pump for a specific task?

Choosing the right small vacuum pump for a specific task is essential to ensure optimal performance and efficiency. Several factors should be taken into account when making your selection:

1. Vacuum Level Requirements:

Determine the required vacuum level for your application. Some tasks may require a high vacuum level, while others can be accomplished with a lower vacuum. The pump’s ultimate vacuum capability should match your needs.

2. Flow Rate:

Consider the volume of gas or air that needs to be evacuated or processed per unit of time. Choose a pump with an adequate flow rate to meet your application’s requirements. Insufficient flow can lead to slow or inefficient processes.

3. Type of Gas:

Identify the type of gas or vapor you will be handling. Some gases may be corrosive, reactive, or incompatible with certain pump materials. Ensure that the pump you select is compatible with the gases involved in your task.

4. Contamination Sensitivity:

If your application demands a clean and contamination-free vacuum environment, consider pumps that operate without oil lubrication, such as diaphragm or scroll pumps. These pumps are suitable for applications like analytical instruments and cleanroom environments.

5. Power Source:

Determine the available power source for your pump. Small vacuum pumps can be electric, battery-powered, pneumatic, or even hand-operated. Choose a power source that aligns with your application’s requirements and availability.

6. Portability:

If mobility is essential, opt for a compact and lightweight vacuum pump. Battery-powered or pneumatic pumps are often chosen for portable applications. Consider the size and weight of the pump relative to the device or equipment it will be integrated into.

7. Noise Level:

Assess the noise level generated by the pump. Some small vacuum pumps operate quietly, which is advantageous in noise-sensitive environments like laboratories and medical facilities. Low-noise pumps are also suitable for handheld devices.

8. Maintenance Requirements:

Consider the maintenance needs of the pump. Some pumps have simpler designs and require less frequent servicing. Evaluate factors such as filter replacement, lubrication, and ease of access for maintenance tasks.

9. Cost and Budget:

Take into account your budget constraints. Small vacuum pumps come in a range of price points, so choose one that offers the best balance between performance and cost while meeting your specific requirements.

10. Environmental Considerations:

Consider environmental factors, especially if your application is in a sensitive or regulated area. Assess energy efficiency, emissions, and any environmental certifications or standards that the pump may need to meet.

11. Application Specifics:

Finally, closely examine the unique requirements of your specific task. Each application may have its own considerations, so tailor your choice to suit the precise demands of your project or process.

By carefully evaluating these factors, you can select the most appropriate small vacuum pump for your specific task, ensuring that it performs efficiently and effectively.

small vacuum pump

What industries commonly rely on small vacuum pumps for their operations?

Small vacuum pumps play a crucial role in various industries, offering versatile solutions for a wide range of applications. Here are industries that commonly rely on small vacuum pumps for their operations:

1. Laboratory and Scientific Research:

Small vacuum pumps are essential in laboratories for applications such as vacuum filtration, rotary evaporation, freeze drying, and sample concentration. Scientific research in fields like chemistry, biology, and physics often relies on precise vacuum control.

2. Healthcare and Medical:

In the medical and healthcare industry, small vacuum pumps are used in devices like medical aspirators, wound care systems, and diagnostic equipment. They help create the necessary vacuum for procedures such as suctioning, wound drainage, and blood collection.

3. Manufacturing and Industrial Processes:

Manufacturing industries utilize small vacuum pumps in various processes, including vacuum packaging, degassing of liquids and resins, and handling of materials. Industries such as food processing, electronics, and plastics rely on vacuum technology for efficient production.

4. HVAC and Refrigeration:

In heating, ventilation, air conditioning (HVAC), and refrigeration systems, small vacuum pumps are used for evacuating and degassing refrigerant lines. This ensures optimal system performance and prevents issues like moisture contamination.

5. Automotive and Aerospace:

The automotive and aerospace industries use small vacuum pumps in applications like power brake boosters, emission control systems, and aircraft de-icing systems. These pumps play a crucial role in ensuring safety and performance in transportation equipment.

6. Environmental Monitoring and Analysis:

Environmental monitoring equipment, including air and water quality analyzers, often relies on small vacuum pumps for sample collection and analysis. They help ensure accurate data in environmental studies and compliance monitoring.

7. Semiconductor and Electronics:

In semiconductor manufacturing and electronics assembly, small vacuum pumps are used in vacuum pick-and-place systems, surface mount technology (SMT) equipment, and wafer handling. They contribute to precision and reliability in microelectronics production.

8. Research and Development:

Research and development efforts in various industries, including materials science, nanotechnology, and aerospace, rely on small vacuum pumps for experiments and prototyping. Vacuum chambers are commonly used in R&D to simulate specific environmental conditions.

9. Pharmaceuticals and Biotechnology:

The pharmaceutical and biotechnology industries use small vacuum pumps for processes such as filtration, lyophilization (freeze drying), and drug formulation. These pumps are critical for drug manufacturing and research.

10. Food and Beverage:

In the food and beverage industry, small vacuum pumps are used in vacuum packaging machines to extend the shelf life of perishable products. They help remove air from packaging, preventing spoilage and preserving freshness.

11. Energy and Power Generation:

Small vacuum pumps are used in power plants and energy facilities for applications like turbine sealing and transformer evacuation. They contribute to the efficiency and reliability of power generation systems.

These industries rely on small vacuum pumps to perform critical functions, enhance product quality, and optimize various processes. The versatility and efficiency of small vacuum pumps make them indispensable tools in modern industrial and scientific applications.

China manufacturer Small Mini Oil Free Piston Rocking Oilless Vacuum Pump for Suction Machines   with Best Sales China manufacturer Small Mini Oil Free Piston Rocking Oilless Vacuum Pump for Suction Machines   with Best Sales
editor by Dream 2024-05-08