Oil-sealed Vacuum Pumps

Oil-sealed vacuum pumps

Atlas Copco’s oil-sealed vacuum pumps combine robust technology with Atlas Copco’s advanced vacuum know-how.

Browse all Atlas Copco vacuum solutions supplied by N B Mercantile.

When a continuous and strong vacuum is required in industrial work, choosing the right vacuum pump is necessary. INB Mercantile provides advanced Vacuum Pump Solutions for this very need. We offer Oil Sealed Rotary Screw Vacuum Pumps, Oil Sealed Rotary Vane Pumps, and Oil-Sealed Rotary Piston Pumps. These pumps provide better sealing and stable performance with oil-sealed technology. Their suction power remains strong, and the work is reliable. This increases the capacity of the chemical, packaging, manufacturing, and other industries.

The design of these pumps is made for long-term continuous use. They help in maintaining high productivity.

NB Mercantile is also a reliable Oil-Free Screw Vacuum Pump Supplier. We provide the right solution according to the customer's needs. Our Oil-Sealed Rotary Screw Pumps are known for low maintenance and energy efficiency. They have a long life, which reduces the total cost. This also improves performance. Our expert team helps with product selection. We also provide full support in installation and after-sales service. This gives customers a reliable experience. If you want durable and high-performance vacuum pumps, NB Mercantile is a good option. Contact us today and make your work more efficient.

Oil sealed rotary screw vacuum pumps

Oil sealed rotary screw vacuum pumps

The GHS VSD+ series are a range of intelligent, oil-sealed rotary screw vacuum pumps with Variable Speed Drive (VSD) technology. A paradigm of innovation, practicality, economy, and energy efficiency, we have now taken the GHS VSD+ series to the next level with the revolutionary HEX@TM vacuum pump controller.

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Oil-sealed rotary vane pumps

Oil-sealed rotary vane pumps

Rotary vane vacuum pumps are ideally suited for a wide range of low and medium vacuum applications such as general and chemical laboratory, analytics, freeze drying, process engineering and more. A rotary vane pump works via positive displacement, which is when volumes of air or gas are confined within a closed space and are compressed when the space is mechanically reduced.

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Oil-sealed Rotary Piston Pumps

Oil-sealed Rotary Piston Pumps

With an efficient space saving design, excellent performance and reliability, our GLS rotary piston pump is synonymous with efficiency and dependability.

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Tank - mounted vacuum pump systems with rotary vane pumps

Tank - mounted vacuum pump systems with rotary vane pumps

Single-stage, oil sealed rotary vane pumps - supplied a tank, electrical cabinet with controller and a filter

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Oil Sealed Rotary Screw Vacuum Pump and Rotary Vane Pumps

Oil-sealed vacuum pumps remain the workhorse of industrial vacuum. N B Mercantile, established in 1996 and the exclusive channel partner for Atlas Copco in Rajasthan, supplies the full oil-sealed range shown above: the oil sealed rotary screw vacuum pump, the oil-sealed rotary vane vacuum pump, rotary piston pumps and tank-mounted vacuum systems.

How oil-sealed vacuum pumps work

In every oil-sealed design, oil seals the small clearances inside the pump, lubricates moving parts and carries heat away. This allows a deep, stable vacuum from a compact machine.

  • Rotary vane pumps: an offset rotor carries sliding vanes that trap and compress gas. They are simple, compact and widely used for packaging, thermoforming, moulding and laboratory-style duties.
  • Rotary screw pumps: two intermeshing screw rotors move gas continuously. An oil-injected screw vacuum pump suits larger flows and continuous duty, and often pairs well with a variable speed drive.
  • Rotary piston pumps: robust machines for heavy-duty roughing applications such as degassing and drying.
  • Tank-mounted systems: rotary vane pumps mounted on a receiver, ready to connect as a central vacuum supply.

Choosing between vane and screw

For smaller, intermittent demand, rotary vane pumps are usually the economical choice. Where demand is high or runs round the clock, an oil sealed rotary screw vacuum pump can offer better efficiency and longer service intervals. Gas condition matters too: oil-sealed pumps work best on clean, relatively dry gas. Also consider the operating vacuum: running a pump far from its design range wastes energy, so size for the vacuum your process actually needs. If your process carries a lot of vapour or must stay oil-free, look at our dry vacuum pumps or liquid ring vacuum pumps instead.

Keeping oil-sealed pumps reliable

Most problems trace back to oil condition. Check oil level and colour regularly, change oil and filters on schedule, and keep exhaust filters clean to avoid oil mist. On humid duties, running with gas ballast and warming the pump before use helps keep moisture out of the oil.

Price depends on model, capacity and configuration. Share your required flow, vacuum level and duty with our team through the contact page, and we will recommend the right oil sealed rotary screw vacuum pump or vane pump for your plant in Rajasthan or Gujarat.

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Oil-sealed Vacuum Pump FAQs

What is the difference between an oil-sealed rotary vane and a rotary screw vacuum pump?

A rotary vane pump uses sliding vanes in an offset rotor and suits small to medium, often intermittent, demand. A rotary screw pump uses two intermeshing rotors and suits larger flows and continuous operation. Both use oil for sealing, lubrication and cooling. The right choice depends on your flow, vacuum level and running hours.

How often does an oil-sealed vacuum pump need maintenance?

Routine care covers checking oil level and condition, changing oil and oil filters, and replacing exhaust and inlet filters at the intervals the manufacturer recommends. Intervals depend on running hours and how clean the process gas is. Contaminated or humid gas shortens oil life, so regular checks protect the pump and maintain vacuum performance.

Can oil-sealed vacuum pumps handle water vapour?

They can handle moderate amounts, and many models have a gas ballast feature that helps prevent vapour condensing in the oil. Heavy vapour loads, however, degrade the oil quickly. For very wet or condensable gas streams, a liquid ring pump or a suitable dry pump is often the better choice.

Where are oil-sealed rotary vane vacuum pumps commonly used?

Typical uses include food packaging, thermoforming, plastic and composite moulding, woodworking hold-down, drying, degassing and general factory vacuum supplied from a tank-mounted system. They suit industries such as food and beverage, plastics, printing and general manufacturing where the process gas is reasonably clean and dry.

What affects the price of an oil-injected screw vacuum pump?

Price depends on pumping capacity, motor size, fixed or variable speed drive, cooling arrangement and accessories such as filters and controls. Because each installation is configured to the process, we quote per requirement. Contact N B Mercantile with your flow, vacuum level and duty details for a quote.