China OEM Marble Small Oil Free Piston Vacuum Pump with Hot selling

Product Description

Silent Portable 3/4HP Twin Mini Rocking Liposuction Food Industry Detailing Milker Braking Laboratory Dental Airbrush Piston Oilless Oil Free dry Vacuum Pump

Oil-less 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

Main application fields:
machines for pressotherapy, machines for dermabrasion, inhalation thermal therapies, money counting machines, silk screen printing machines, automatic feeder machines for book-binding, wood presses, suction lifting machines, pollutant sampling and analysis.


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


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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

How can one troubleshoot common issues that may arise with small vacuum pumps?

Troubleshooting common issues with small vacuum pumps is essential to maintain their efficiency and reliability. Here are steps to identify and address common problems:

1. Insufficient Vacuum:

If the pump fails to reach the desired vacuum level:

  • Check for leaks in the system using a leak detector or soapy water. Tighten connections or replace damaged seals.
  • Inspect the pump’s intake filter for clogs or dirt. Clean or replace the filter if necessary.
  • Ensure that the pump is properly sized for the application. An undersized pump may not achieve the required vacuum level.

2. Excessive Noise or Vibration:

If the pump is unusually noisy or vibrates excessively:

  • Inspect the pump’s mounting and foundation. Ensure it is securely fastened to a stable surface.
  • Check for loose or damaged components within the pump. Tighten or replace parts as needed.
  • Verify that the pump is properly lubricated, if applicable, and that the lubricant is at the correct level.

3. Overheating:

If the pump is overheating:

  • Ensure that the pump has adequate ventilation and is not placed in an excessively hot environment.
  • Check for blocked cooling fins or fans. Clean them to improve cooling efficiency.
  • Inspect the motor and electrical components for signs of overheating or damage. Address any electrical issues promptly.

4. Oil Contamination:

If the vacuum pump uses oil lubrication and there is oil contamination in the vacuum chamber:

  • Inspect the oil seals and gaskets for wear or damage. Replace them if necessary.
  • Check the oil level in the pump and maintain it within the recommended range.
  • Ensure that the oil used is compatible with the pump and the application.

5. Pump Won’t Start:

If the pump fails to start:

  • Check the power supply and ensure that the pump is properly connected to a functioning electrical outlet or power source.
  • Inspect the motor and electrical components for loose connections or damaged wires. Address any electrical issues.
  • Review the pump’s user manual for specific troubleshooting steps related to starting issues.

6. Reduced Flow Rate:

If the pump’s flow rate decreases:

  • Inspect the intake filter for clogs or contamination. Clean or replace the filter if necessary.
  • Check for wear on components like diaphragms or vanes. Replace worn parts to restore flow rate.
  • Verify that the pump’s valves and seals are functioning correctly. Replace faulty components.

Always consult the manufacturer’s user manual and guidelines for specific troubleshooting steps related to your small vacuum pump model. If issues persist or are beyond your expertise, contact the manufacturer’s customer support or a qualified technician for professional assistance.

small vacuum pump

Can you describe the typical power sources for small vacuum pumps?

Small vacuum pumps can be powered by various sources, depending on their design, size, and intended applications. Here are the typical power sources for small vacuum pumps:

1. Electric Power:

Most small vacuum pumps are electrically powered and use standard alternating current (AC) or direct current (DC) sources. Electric vacuum pumps are versatile and widely used in laboratory equipment, industrial processes, and portable devices. They can be plugged into wall outlets or connected to DC power sources such as batteries or power supplies.

2. Battery Power:

Portable and handheld devices often incorporate battery-powered small vacuum pumps. These pumps are ideal for applications where mobility is crucial, such as fieldwork, medical instruments, and handheld vacuum aspirators. Batteries can be rechargeable or disposable, depending on the device’s requirements.

3. Compressed Air:

In some applications, small vacuum pumps are driven by compressed air or other gases. These pumps are known as pneumatic or air-operated vacuum pumps. They are commonly used in industrial automation, vacuum gripping systems, and manufacturing processes where compressed air is readily available.

4. Hydraulic Power:

In specialized applications, small vacuum pumps can be hydraulically powered. These pumps are often used in systems where hydraulic power sources are already in use. They are less common than electric or pneumatic options but find application in specific industries like automotive manufacturing.

5. Solar Power:

In remote or off-grid locations, small vacuum pumps can be powered by solar panels and photovoltaic systems. Solar-powered vacuum pumps are environmentally friendly and energy-efficient, making them suitable for sustainable and remote applications.

6. Hand Cranks:

For ultra-portable and emergency situations, some small vacuum pumps can be hand-operated using a manual hand crank. These pumps are typically compact and lightweight, making them suitable for backup or low-volume vacuum needs.

7. Engine-Driven:

In certain industrial and automotive applications, small vacuum pumps can be driven by an internal combustion engine. These pumps are commonly used in power brake boosters and emission control systems in vehicles.

The choice of power source for a small vacuum pump depends on factors such as the application’s mobility requirements, availability of power sources, energy efficiency goals, and environmental considerations. Manufacturers design vacuum pumps to be compatible with various power sources to meet diverse application needs.

small vacuum pump

Can you explain the different types of small vacuum pumps available in the market?

Certainly, there are several types of small vacuum pumps available in the market, each with unique working principles and applications. Here are some of the most common types:

1. Diaphragm Vacuum Pumps:

Diaphragm vacuum pumps use a flexible diaphragm that moves up and down to create suction. These pumps are oil-free, making them ideal for applications where contamination from lubricants is a concern, such as in laboratories. They are commonly used in vacuum filtration, sample concentration, and scientific research.

2. Rotary Vane Vacuum Pumps:

Rotary vane vacuum pumps operate by using vanes that rotate inside a cylindrical chamber. As the vanes move, they create a vacuum by trapping and compressing gas. These pumps are known for their high efficiency and reliability. They are used in applications like rotary evaporation, HVAC systems, and industrial processes.

3. Piston (Reciprocating) Vacuum Pumps:

Piston vacuum pumps use a piston-cylinder arrangement to create a vacuum. They are often found in smaller, portable units and are suitable for applications requiring intermittent or continuous vacuum, such as refrigeration evacuation, air sampling, and medical devices.

4. Scroll Vacuum Pumps:

Scroll vacuum pumps consist of two interleaved spiral scrolls that move in opposite directions. This design generates a series of crescent-shaped pockets, trapping and compressing gas as they move. Scroll pumps are known for their quiet operation and are used in applications like semiconductor manufacturing, analytical instruments, and vacuum ovens.

5. Venturi Vacuum Pumps:

Venturi vacuum pumps operate using the Venturi effect, where a high-speed fluid (usually air or gas) creates a vacuum when passing through a constriction. These pumps are simple and compact, making them suitable for portable and lightweight applications like vacuum pick-and-place systems and vacuum grippers.

6. Turbomolecular Vacuum Pumps:

Turbomolecular vacuum pumps are high-speed pumps that use rotating blades to capture and accelerate gas molecules out of the vacuum chamber. They are capable of achieving very high vacuum levels and are used in ultra-high vacuum applications, such as electron microscopy, mass spectrometry, and semiconductor manufacturing.

Choosing the right type of small vacuum pump depends on factors such as the required vacuum level, flow rate, contamination sensitivity, and application-specific requirements. It’s essential to consider these factors when selecting a vacuum pump to ensure it meets your needs effectively.

China OEM Marble Small Oil Free Piston Vacuum Pump   with Hot selling	China OEM Marble Small Oil Free Piston Vacuum Pump   with Hot selling
editor by CX 2024-04-10