China OEM Automatic Machines Piston Oil Less Vacuum Pump vacuum pump design

Product Description

200L/Min Mini Low-Noise Portable Oilless Dermatology Eye Surgery Centrifuge filtering ventilators Oil Less Piston ovens Medical aspiration Dental 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 CZPT 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 CZPT 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


/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

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


piston vacuum pump

How Does Piston Displacement Affect the Pump’s Performance?

Piston displacement is a crucial factor that significantly affects the performance of a piston vacuum pump. Here’s a detailed explanation:

Piston displacement refers to the volume of gas or air that a piston vacuum pump can move during each stroke of the piston. It determines the pump’s capacity or flow rate, which is the amount of gas that the pump can evacuate per unit of time.

1. Flow Rate:

– The piston displacement directly influences the flow rate of the pump.

– A larger piston displacement corresponds to a higher flow rate, meaning the pump can evacuate a larger volume of gas per unit of time.

– Conversely, a smaller piston displacement results in a lower flow rate.

2. Pumping Speed:

– The pumping speed is a measure of how quickly a vacuum pump can remove gas molecules from a system.

– The piston displacement is directly related to the pumping speed of the pump.

– A larger piston displacement leads to a higher pumping speed, allowing for faster evacuation of the system.

– A smaller piston displacement results in a lower pumping speed, which may require more time to achieve the desired vacuum level.

3. Vacuum Level:

– The piston displacement indirectly affects the achievable vacuum level of the pump.

– A larger piston displacement can help reach lower pressures and achieve a deeper vacuum.

– However, it’s important to note that achieving a deep vacuum also depends on other factors such as the design of the pump, the quality of the seals, and the operating conditions.

4. Power Consumption:

– The piston displacement can impact the power consumption of the pump.

– A larger piston displacement typically requires more power to operate the pump due to the increased volume of gas being moved.

– Conversely, a smaller piston displacement may result in lower power consumption.

5. Size and Weight:

– The piston displacement affects the size and weight of the pump.

– A larger piston displacement generally requires a larger pump size and may increase the weight of the pump.

– On the other hand, a smaller piston displacement can result in a more compact and lightweight pump.

It’s important to select a piston vacuum pump with an appropriate piston displacement based on the specific application requirements.

In summary, the piston displacement of a vacuum pump directly influences its flow rate, pumping speed, achievable vacuum level, power consumption, and size. Understanding the relationship between piston displacement and pump performance is crucial in choosing the right pump for a given application.

piston vacuum pump

What Is the Energy Efficiency of Piston Vacuum Pumps?

The energy efficiency of piston vacuum pumps can vary depending on several factors. Here’s a detailed explanation:

1. Design and Technology:

– The design and technology used in piston vacuum pumps can significantly influence their energy efficiency.

– Modern piston pump designs often incorporate features such as optimized valve systems, reduced internal leakage, and improved sealing mechanisms to enhance efficiency.

– Advancements in materials and manufacturing techniques have also contributed to more efficient piston pump designs.

2. Motor Efficiency:

– The motor driving the piston pump plays a crucial role in overall energy efficiency.

– High-efficiency motors, such as those adhering to energy efficiency standards like NEMA Premium or IE3, can significantly improve the energy efficiency of the pump.

– Proper motor sizing and matching to the pump’s load requirements are also important to maximize efficiency.

3. Control Systems:

– The use of advanced control systems can optimize the energy consumption of piston vacuum pumps.

– Variable frequency drives (VFDs) or speed control systems can adjust the pump’s operating speed based on the demand, reducing energy consumption during periods of lower demand.

– Smart control algorithms and sensors can also help optimize the pump’s performance and energy efficiency.

4. System Design and Integration:

– The overall system design and integration of the piston vacuum pump within the application can impact energy efficiency.

– Proper sizing and selection of the pump based on the specific application requirements can ensure that the pump operates within its optimal efficiency range.

– Efficient piping and ducting design, as well as minimizing pressure losses and leaks, can further improve the overall energy efficiency of the system.

5. Load Profile and Operating Conditions:

– The load profile and operating conditions of the piston vacuum pump have a significant impact on energy consumption.

– Higher vacuum levels or flow rates may require more energy to be supplied by the pump.

– Operating the pump continuously at maximum capacity may lead to higher energy consumption compared to intermittent or variable load conditions.

– It’s important to evaluate the specific operating requirements and adjust the pump’s operation accordingly to optimize energy efficiency.

6. Comparing Efficiency Ratings:

– When comparing the energy efficiency of different piston vacuum pumps, it can be helpful to look for efficiency ratings or specifications provided by the manufacturer.

– Some manufacturers provide efficiency data or performance curves indicating the pump’s energy consumption at various operating points.

– These ratings can assist in selecting a pump that meets the desired energy efficiency requirements.

In summary, the energy efficiency of piston vacuum pumps can be influenced by factors such as design and technology, motor efficiency, control systems, system design and integration, load profile, and operating conditions. Considering these factors and evaluating efficiency ratings can help in selecting an energy-efficient piston vacuum pump for a specific application.

piston vacuum pump

Are There Oil-Free Piston Vacuum Pump Options Available?

Yes, there are oil-free piston vacuum pump options available. Here’s a detailed explanation:

1. Oil-Free Technology:

– Traditional piston vacuum pumps use oil as a lubricant and sealant in their operation.

– However, advancements in vacuum pump technology have led to the development of oil-free piston vacuum pumps.

– Oil-free piston pumps are designed to operate without the need for lubricating oil, eliminating the risk of oil contamination and the need for oil changes.

2. Dry Running Operation:

– Oil-free piston vacuum pumps achieve lubrication and sealing through alternative means.

– They often utilize materials such as self-lubricating polymers or advanced coatings on the piston and cylinder surfaces.

– These materials reduce friction and provide sufficient sealing to maintain vacuum levels without the need for oil.

3. Applications:

– Oil-free piston vacuum pumps are suitable for a wide range of applications where oil contamination is a concern.

– They are commonly used in industries such as food and beverage, pharmaceutical, electronics, laboratories, and medical where a clean and oil-free vacuum environment is required.

4. Advantages:

– The primary advantage of oil-free piston vacuum pumps is their ability to provide a clean and oil-free vacuum.

– They eliminate the risk of oil contamination, which is crucial in sensitive applications such as semiconductor manufacturing or pharmaceutical production.

– Oil-free pumps also simplify maintenance since there is no need for oil changes or regular oil monitoring.

5. Considerations:

– While oil-free piston vacuum pumps offer advantages, they also have some considerations to keep in mind.

– They may have slightly lower ultimate vacuum levels compared to oil-lubricated pumps.

– The absence of oil as a lubricant may result in slightly higher operating temperatures and increased wear on piston and cylinder surfaces.

– It’s important to select an oil-free piston vacuum pump that is suitable for the specific application requirements and consider the trade-offs between performance, cost, and maintenance.

6. Alternative Pump Technologies:

– In some cases, where oil-free operation is critical or specific vacuum levels are required, alternative pump technologies may be more suitable.

– Dry screw pumps, claw pumps, or scroll pumps are examples of oil-free pump technologies that are widely used in various industries.

– These pumps offer oil-free operation, high pumping speeds, and can achieve lower vacuum levels compared to oil-free piston pumps.

In summary, oil-free piston vacuum pumps are available as an alternative to traditional oil-lubricated pumps. They provide a clean and oil-free vacuum environment, making them suitable for applications where oil contamination is a concern. However, it’s important to consider specific application requirements and explore alternative pump technologies if necessary.

China OEM Automatic Machines Piston Oil Less Vacuum Pump   vacuum pump design		China OEM Automatic Machines Piston Oil Less Vacuum Pump   vacuum pump design
editor by Dream 2024-04-17