G-Series Overview

The NeoDry G-Series is the current generation of Kashiyama NeoDry oil-free dry vacuum pumps, built for clean vacuum environments where oil contamination is a concern. The family includes the 7G, 15G, 15G with N2 purge, 30G, 30G with N2 purge, and 36G, covering a range of pumping speeds for semiconductor, analytical, laboratory, and process applications. The pumps are air-cooled and designed for long service intervals. Compare the models below by specs and application fit, or request a quote, and we will help you match a pump to your requirements.

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G-Series Pumps

Kashiyama NeoDry N2 Purge Unit

$0.00

NeoDry 7G

NeoDry 15G

NeoDry 15G w/ N2 Purge

NeoDry 30G

NeoDry 30G w/ N2 Purge

NeoDry 36G

Comparison

NeoDry G-Series vs E-Series and Scroll Pumps

The G-Series is the newer NeoDry generation and is the right starting point for most new selections, while E-Series models are supported mainly for existing owners, repair, and upgrade planning. Compared with scroll pumps, the G-Series is an oil-free dry vacuum option that uses no PTFE tip seals, so there are no tip seals to wear out or replace, and it avoids the particle contamination associated with scroll designs. NeoDry positions the G-Series as an alternative to, or replacement for, scroll, oil-sealed, multi-roots, and hook-and-claw pumps in roughly the 8 to 175 CFM range. The right fit still depends on the required pumping speed, ultimate pressure, and application, so confirm the match before treating any model as a direct swap.

Why Choose It

Why Choose the NeoDry G-Series

Oil-free, dry, and built for clean vacuum, the G-Series brings a set of advantages that matter most to lab, OEM, and process users:

✓

True Oil-Free Operation

No oil vapor backstreaming and no particle contamination, suited to sensitive work such as analytical instruments and electron microscopes.

✓

Long Maintenance Interval

Typically 4 to 6 years of continuous operation depending on the application, with no PTFE tip seals to replace.

✓

Air-Cooled Operation

No need for cooling water infrastructure.

✓

Quiet Operation

Below 60 dB(A) across the range and as low as about 45 dB(A) on some models, which suits lab environments.

✓

High Water Vapor Handling

Up to 600 g/h, for moisture-heavy processes such as cryopump regeneration, freeze drying, and vapor pumping.

✓

Time Delay Restart

Brings the pump up to full speed after a power interruption before opening the inlet valve, protecting turbo pumps and fore-line gauges from backpressure surges.

✓

Wide Voltage Range

Auto-switching between single-phase 100 VAC and 200 VAC, while the largest models offer 208 to 240 VAC three-phase or single-phase.

✓

Continuous Atmospheric Operation

Runs continuously at atmospheric pressure without overheating, which suits load locks and large chamber evacuation.

Not sure which G-Series pump fits your application?

Tell us your required pumping speed, pressure, and environment, and we will help you choose.

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FAQ

Frequently Asked Questions

What is the NeoDry G-Series?
The NeoDry G-Series is the current generation of Kashiyama NeoDry oil-free dry vacuum pumps. It includes the 7G, 15G, 15G with N2 purge, 30G, 30G with N2 purge, and 36G, built for clean vacuum environments where oil contamination is a concern. The pumps are air-cooled, low-maintenance, and designed for semiconductor, analytical, laboratory, and process applications.
What is the difference between the NeoDry G-Series and E-Series?
The G-Series is the newer NeoDry generation and is the recommended starting point for most new pump selections. The E-Series is treated as the prior generation and is supported mainly for existing owners, repairs, comparisons, and upgrade planning. Specific differences in operation, maintenance, and moisture handling vary by model and should be confirmed against current NeoDry documentation.
Can a NeoDry G-Series pump replace a scroll pump?
In many oil-free dry vacuum applications, yes. NeoDry positions the G-Series as an alternative to, or replacement for, scroll pumps in the 8 to 175 CFM range, as well as oil-sealed, multi-roots, and hook-and-claw pumps. Unlike scroll pumps, the G-Series uses no PTFE tip seals, so there are no tip seals to wear out or replace, and it avoids the particle contamination associated with scroll designs. The right fit still depends on your required pumping speed, pressure, and application, so share your current pump, and we will help you confirm it.
Are NeoDry G-Series pumps oil-free?
Yes. NeoDry G-Series pumps are oil-free dry vacuum pumps, so there is no oil vapor backstreaming. That makes them a fit for clean vacuum applications where contamination is a concern, such as analytical instruments and electron microscopes.
How do I choose the right NeoDry G-Series model?
Start with the pumping speed and ultimate pressure your application needs, then factor in the operating environment, moisture or vapor load, installation constraints, and whether an N2 purge option is required. From there, the 7G, 15G, 30G, and 36G cover progressively larger capacities. If you are unsure, request a quote, and we will recommend a model.
Do NeoDry G-Series pumps need an N2 purge?
Standard NeoDry G-Series operation does not require a nitrogen purge. Every G-Series pump has a built-in purge circuit and valve, and the dedicated N2 purge models are set up for N2 or clean, dry air purge in high-vapor applications, where the purge helps manage condensable vapors and certain process gases. If you are not running high vapor loads, the standard model is usually enough. Tell us your process, and we will confirm whether a purge configuration is needed.
Can NeoDry G-Series pumps handle moisture or vapors?
Yes, and water vapor handling is a strength of the series, with capability up to 600 g/h. That makes the G-Series suitable for moisture-intensive processes such as cryopump regeneration, freeze-drying, and vapor pumping. Exact handling depends on the model and configuration, including whether an N2 or clean dry air purge is used, so confirm the figure for your specific model.
How often does a NeoDry G-Series pump need maintenance?
The G-Series is built for long service intervals, typically 4 to 6 years of continuous operation depending on the application. Because the pumps use no PTFE tip seals, you avoid the seal wear, replacement cost, and downtime common to dry scroll pumps. For the recommended service scope for a specific model and duty cycle, check the current NeoDry documentation or contact us.
Where can I find specs, datasheets, and pumping curves for the G-Series?
Each model tile on this page links to its product page, where datasheet, specification, and pumping curve resources are available. If you need a specific document or a value that is not published, contact us, and we will help you get it.
How do I request a quote for a NeoDry G-Series pump?
Use the Get a Quote form on neodrypumps.com or call 1-866-379-7867. Tell us the model you are considering or the application you need to cover, and we will help you confirm the right G-Series pump and next steps.

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