China supplier Oilless Piston Food Packing Vacuum Pump vacuum pump belt

Product Description

single-chamber desktop tabletop vacuum packing sealer oil free small piston vacuum pump

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 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


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

What Are the Advantages of Using Piston Vacuum Pumps?

Piston vacuum pumps offer several advantages that make them suitable for various applications. Here’s a detailed explanation of the advantages of using piston vacuum pumps:

1. High Vacuum Levels:

– Piston vacuum pumps are capable of achieving high vacuum levels, making them suitable for applications that require deep vacuum conditions.

– They can create and maintain a vacuum in the range of millitorr (10-3 Torr) to microns (10-6 Torr).

2. Low Flow Rates:

– Piston vacuum pumps are designed to handle low flow rates efficiently.

– They are suitable for applications where a steady and controlled evacuation is required rather than high-volume pumping.

3. Compact and Portable:

– Piston vacuum pumps are relatively compact and lightweight compared to other types of vacuum pumps.

– Their compact design allows for easy installation in limited spaces or portable applications where mobility is required.

4. Oil Lubrication:

– Many piston vacuum pumps utilize oil lubrication for smooth operation and to maintain airtight seals.

– The oil lubrication also helps to cool the pump by dissipating heat generated during operation.

5. Wide Range of Applications:

– Piston vacuum pumps find applications in various industries and processes.

– They are commonly used in laboratories, research facilities, pharmaceutical production, vacuum drying, vacuum filtration, and other applications that require moderate vacuum levels and low flow rates.

6. Cost-Effective:

– Piston vacuum pumps are often more cost-effective compared to other high-vacuum pumps such as turbomolecular pumps or cryogenic pumps.

– They provide a reliable and affordable solution for achieving vacuum requirements in many applications.

7. Easy Maintenance:

– Piston vacuum pumps are relatively easy to maintain.

– Regular maintenance tasks include checking and replacing lubricating oil, inspecting and cleaning valves, and ensuring proper sealing.

– Routine maintenance helps to prolong the lifespan of the pump and maintain its performance.

8. Durability:

– Piston vacuum pumps are known for their durability and long operational life.

– They are designed to withstand continuous operation and handle demanding vacuum conditions.

– With proper care and maintenance, piston vacuum pumps can provide reliable performance over an extended period.

9. Versatility:

– Piston vacuum pumps can handle a wide range of gases, including inert gases, corrosive gases, and vapors.

– This versatility makes them suitable for diverse applications in different industries.

In summary, the advantages of using piston vacuum pumps include their ability to achieve high vacuum levels, handle low flow rates, compact and portable design, oil lubrication for smooth operation, wide range of applications, cost-effectiveness, easy maintenance, durability, and versatility. These advantages make piston vacuum pumps a popular choice in various industries where moderate vacuum levels and controlled evacuation are required.

piston vacuum pump

How Do You Troubleshoot Common Issues with Piston Vacuum Pumps?

Troubleshooting common issues with piston vacuum pumps involves a systematic approach to identify and resolve problems. Here’s a detailed explanation:

1. Insufficient Vacuum Level:

– If the vacuum level achieved by the piston pump is lower than expected:

– Check for leaks: Inspect all connections, seals, and fittings for any signs of leakage. Repair or replace any damaged components.

– Verify valve operation: Ensure that the valves in the pump are functioning correctly. Clean or replace any faulty valves that may be impeding the pump’s performance.

– Check for worn piston or cylinder: Examine the piston and cylinder for signs of wear. If necessary, replace these components to restore optimal vacuum performance.

2. Excessive Noise or Vibrations:

– If the piston pump is producing excessive noise or vibrations:

– Check for misalignment: Ensure that the pump is properly aligned with its drive mechanism. Adjust or realign as necessary.

– Inspect mounting and support: Examine the pump’s mounting and support structure to ensure it is stable and secure. Reinforce or repair any weak or damaged mounts.

– Verify lubrication: Adequate lubrication is crucial for smooth pump operation. Check the lubrication system and ensure it is supplying sufficient lubricant to all necessary components.

3. Overheating:

– If the piston pump is overheating:

– Check cooling system: Inspect the cooling system, including fans, heat exchangers, and cooling fins. Clean or replace any clogged or malfunctioning cooling components.

– Verify airflow: Ensure that there is proper airflow around the pump. Remove any obstructions or debris that may be impeding the flow of cooling air.

– Evaluate operating conditions: Examine the pump’s operating conditions, such as ambient temperature and duty cycle. Adjust these factors if necessary to prevent overheating.

4. Oil Contamination:

– If there is oil contamination in the vacuum system:

– Check oil seals: Inspect the seals in the pump for any signs of damage or wear. Replace any faulty seals that may be allowing oil leakage.

– Verify oil level and quality: Ensure that the pump’s oil level is correct and that the oil is clean and free from contaminants. Replace the oil if necessary.

– Evaluate oil mist separation: If the pump is equipped with oil mist separation mechanisms, verify their effectiveness. Clean or replace any filters or separators that may be compromised.

5. Insufficient Pumping Capacity:

– If the pump is unable to meet the required pumping capacity:

– Check for blockages: Inspect the intake and exhaust ports for any blockages or obstructions. Clear any debris or foreign objects that may be impeding the pump’s operation.

– Verify valve operation: Ensure that the valves are opening and closing properly. Clean or replace any valves that may be stuck or malfunctioning.

– Evaluate motor performance: Assess the motor driving the pump for any issues such as insufficient power or improper speed. Repair or replace the motor if necessary.

6. Manufacturer’s Guidelines:

– It’s important to consult the manufacturer’s guidelines and documentation for specific troubleshooting procedures and recommendations tailored to the particular piston vacuum pump model.

– Follow the manufacturer’s instructions for routine maintenance, inspections, and any specific troubleshooting steps provided.

In summary, troubleshooting common issues with piston vacuum pumps involves steps such as checking for leaks, verifying valve operation, inspecting for wear or misalignment, ensuring proper lubrication and cooling, addressing oil contamination, clearing blockages, and evaluating motor performance. Following the manufacturer’s guidelines and documentation is essential for accurate troubleshooting and resolving problems effectively.

piston vacuum pump

How Do You Maintain and Service a Piston Vacuum Pump?

Maintaining and servicing a piston vacuum pump is essential to ensure its optimal performance and longevity. Here’s a detailed explanation:

1. Regular Inspection:

– Perform regular visual inspections of the pump to check for any signs of damage, leaks, or wear.

– Inspect the seals, gaskets, and fittings for any cracks or deterioration.

– Ensure that all connections are tight and secure.

2. Oil Change:

– Piston vacuum pumps typically require regular oil changes to maintain proper lubrication and prevent contamination.

– Follow the manufacturer’s guidelines regarding the frequency of oil changes.

– Drain the old oil completely and replace it with the recommended oil type and quantity.

– Dispose of the used oil according to proper environmental regulations.

3. Filter Replacement:

– Many piston vacuum pumps have filters to prevent dust, particles, and contaminants from entering the pump.

– Check the filter regularly and replace it as needed to maintain proper airflow and prevent clogging.

4. Cleaning:

– Keep the exterior of the pump and its surrounding area clean and free from debris.

– Use a soft cloth or brush to remove any dust or dirt accumulation.

– Avoid using harsh chemicals or solvents that may damage the pump’s surfaces.

5. Seals and Gaskets:

– Inspect the seals and gaskets regularly and replace them if they show signs of wear or damage.

– Ensure that the seals provide a proper airtight seal to prevent leaks and maintain vacuum performance.

6. Cooling System:

– If the piston vacuum pump has a cooling system, monitor it regularly to ensure proper functioning.

– Clean or replace the cooling system components as recommended by the manufacturer.

7. Professional Maintenance:

– Consider scheduling professional maintenance and service at regular intervals, especially for more complex or critical applications.

– Professional technicians can perform in-depth inspections, conduct performance tests, and address any specific issues or concerns.

– They can also provide recommendations on optimizing the pump’s performance and extending its lifespan.

8. Manufacturer Guidelines:

– Always refer to the manufacturer’s maintenance and service guidelines specific to your piston vacuum pump model.

– Follow their recommendations regarding oil type, oil level, maintenance intervals, and any other specific instructions.

– Adhering to the manufacturer’s guidelines ensures proper operation and prevents voiding the warranty.

In summary, maintaining and servicing a piston vacuum pump involves regular inspection, oil changes, filter replacement, cleaning, checking seals and gaskets, monitoring the cooling system, and considering professional maintenance. Following the manufacturer’s guidelines is crucial for effective maintenance and to maximize the pump’s performance and lifespan.

China supplier Oilless Piston Food Packing Vacuum Pump   vacuum pump belt	China supplier Oilless Piston Food Packing Vacuum Pump   vacuum pump belt
editor by CX 2023-11-28