Pfeiffer Scroll Pumps

Pfeiffer HiScroll pumps provide clean, quiet, oil-free vacuum for laboratories, analytical instruments and high vacuum systems. They combine a hermetically sealed scroll design with an efficient motor and smart controls, which makes them a strong choice wherever oil contamination, noise or maintenance time is a concern. At Provac Sales, we supply Pfeiffer HiScroll pumps and help customers choose the right size for their system.

Pfeiffer HiScroll Models We Carry

Our Pfeiffer scroll pump collection includes:

• Pfeiffer HiScroll 6
• Pfeiffer HiScroll 12
• Pfeiffer HiScroll 18
• Pfeiffer HiScroll 46

The number in each model name reflects the nominal pumping speed in cubic metres per hour. The HiScroll 6 suits small instruments and turbo stations, while the HiScroll 46 is designed for larger systems and faster pump-down. All models are currently priced on request, so contact us for availability and configuration.

What Makes HiScroll Different

Pfeiffer designed the HiScroll series with several features aimed at lab and instrument users:

• Hermetically sealed design that keeps the pumping chamber separate from the bearings and drive, helping maintain a clean vacuum and low leak rates
• Quiet operation suited to working labs and shared spaces
• Energy-efficient motor and speed control for lower running costs
• Gas ballast for handling water vapor and other condensable gases
• Remote control and interface options for system integration

Pfeiffer also offers HiScroll versions with features such as ATEX certification for certain potentially explosive atmospheres. Confirm the version of any unit before ordering if your application has special requirements.

How a Scroll Pump Works

A scroll pump uses two interleaved spiral scrolls. One is fixed and the other orbits without rotating. As the orbiting scroll moves, it traps pockets of gas at the outer edge and carries them toward the center, compressing them until they are discharged at the exhaust. A tip seal on each scroll keeps the pockets sealed.

There is no oil in the pumping chamber, so the pump is clean and low maintenance. The tip seals are the main wear item and are replaced during routine service.

How to Choose a Pfeiffer HiScroll Pump

Consider these factors:

• Required pumping speed for your chamber or instrument
• Ultimate pressure needed, especially for turbo backing
• Gases and vapors being pumped
• Noise limits in the lab
• Inlet and exhaust connections, typically small KF flanges
• Electrical supply and voltage range
• Whether you need remote control or integration with system software
• Whether special certification, such as ATEX, is required

Applications for Pfeiffer HiScroll Pumps

HiScroll pumps are used for:

• Backing Pfeiffer HiPace turbo pumps in research and analytical systems
• Mass spectrometers and electron microscopes
• Freeze drying and vacuum drying
• Glove boxes and load locks
• Leak detection systems
• Physics and materials research
• Coating and surface analysis
• General clean laboratory vacuum

HiScroll vs Other Oil-Free Pumps

Pfeiffer offers several oil-free roughing technologies:

• Pfeiffer MVP diaphragm pumps are smaller and lower cost, but reach higher pressures and lower speeds
• Pfeiffer XtraDry piston pumps reach low pressures with long service intervals
• Pfeiffer ACP dry pumps handle more demanding gas loads and process duty

HiScroll pumps sit in the middle, offering good speed, low noise and clean vacuum in a compact package.

HiScroll vs Oil-Sealed Vane Pumps

A Pfeiffer DUO rotary vane pump reaches a lower ultimate pressure at a lower purchase price, but needs oil changes, exhaust filtration and careful handling of oil. A HiScroll pump costs more upfront but removes those tasks and the risk of oil back-streaming. Many labs replace older vane pumps with scroll pumps for these reasons.

Getting the Most From a HiScroll Pump

• Keep the inlet line short and wide to preserve speed
• Use a cold trap when pumping solvents, so liquid does not reach the scrolls
• Use gas ballast when pumping water vapor
• Avoid long periods of operation at high inlet pressure
• Leave space for cooling air around the pump
• Fit an inlet filter in dusty applications
• Record the ultimate pressure when new as a benchmark for service

Maintenance and Tip Seal Service

HiScroll pumps need little maintenance, but tip seals eventually wear. Signs that service is due include a higher ultimate pressure, slower pump-down, increased noise or dust at the exhaust. Tip seal replacement is a routine service, and Pfeiffer designed the HiScroll for straightforward maintenance.

If your HiScroll needs attention, contact us with the model and serial number. Submit an RMA request and complete the contamination data sheet before shipping. See our pump repair page for more.

What to Send Us for a Fast Quote

• The HiScroll model you need, or your required pumping speed
• Voltage and frequency
• Your application and target pressure
• The turbo pump or instrument it will back, if any
• Any special requirements, such as ATEX or remote control

About Pfeiffer Vacuum

Pfeiffer Vacuum was founded in 1890 in Wetzlar, Germany, and is known as a pioneer of turbomolecular pump technology. In 2010 the company acquired Adixen, the former Alcatel Vacuum Technology business, which is why many Alcatel and Adixen designs now carry the Pfeiffer name. The HiScroll series is one of Pfeiffer's newer oil-free roughing lines, designed specifically for lab and instrument users.

Sizing a HiScroll for Your System

As a rough guide, the HiScroll 6 suits small instruments and compact turbo stations, the HiScroll 12 and 18 cover most general lab and medium turbo backing tasks, and the HiScroll 46 serves larger chambers or applications where fast pump-down matters. The right choice also depends on gas load and how much time the pump spends at high inlet pressure, so send us your chamber volume and cycle details for a recommendation.

Frequently Asked Questions

Which HiScroll should I choose for a HiPace 300 turbo pump?

A mid-size HiScroll, such as the HiScroll 12 or 18, is a common pairing for medium turbo pumps. Confirm the turbo's backing requirements and your chamber gas load.

Is the HiScroll suitable for corrosive gases?

The HiScroll is designed mainly for clean and light-duty applications. For corrosive gases, a chemically resistant pump or a process-rated dry pump may be more suitable.

How quiet is a HiScroll pump?

HiScroll pumps are designed for low noise in lab environments. Exact levels depend on the model and operating conditions.

Can a HiScroll replace an Edwards nXDS pump?

Often, yes, if the speed, ultimate pressure and connections suit your system. Send us the details and we will compare.

Does the HiScroll need oil or lubrication?

No. The pumping chamber is oil-free and the bearings are sealed away from the vacuum side, so there is no oil to change. Routine service focuses on tip seals and general checks.

Request a Quote on Pfeiffer Scroll Pumps

Send us the HiScroll model you need, or describe your application, target pressure and electrical supply. We will confirm availability and recommend the right size. Contact us or call 831-462-8900.