What is the impeller structure?

The impeller features a tri-lobe structure designed for high efficiency.

What is the flow capacity range?

The flow capacity ranges from 1.22 to 63.5 m3/min depending on the model.

Where is the product manufactured?

The product is manufactured by Greentech International (Zhangqiu) Co., Ltd in Zhangqiu, Jinan, Shandong, China.

Nsrh Roots Air Compressor (vacuum pump) /Roots Pump

Name: Nsrh Roots Air Compressor (vacuum pump) /Roots Pump
Brand: Greentech Industry (Jinan) Co., Ltd.
SKU: 679526972

Shandong, ChinaGreentech Industry (Jinan) Co., Ltd.

US$980.00

1 Piece

Product profile

Customization

Available

Warranty

Color

Blue

Model NO.

NSRH

Impeller

Tri-Lobe

Connect

Belt

Drive

Motor

Exhauster Method

Positive Displacement Pump

Structure

Rotary Vacuum Pump

Transport Package

Wooden Case

Specification

50~300

Trademark

greentech

Origin

China

HS Code

8414

Production Capacity

1000sets/Months

Key features

High Efficiency Design: New lines on impeller improve adiabatic and volumetric efficiency, reducing heat generation.

Wide Pressure Range: Exhaust pressure in dry state reaches up to 1kgf/cm2 (78.4kPa).

Versatile Applications: Suitable for sewage treatment, powder conveyor, combustion furnaces, and vacuum packaging.

Rotary Vacuum Pump: Positive displacement pump with tri-lobe impeller structure.

Multiple Models Available: Models range from NSRH 50 to NSRH 300 with varying flow capacities.

Belt Drive System: Connects via belt drive for reliable power transmission.

1 Year Warranty: Standard warranty coverage for the product.

Fast Lead Time: Off-season lead time within 15 workdays.

Company profile

Greentech Industry (Jinan) Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2000-09-01Nearest Port: Qingdao, ShanghaiAverage Response Time: ≤2.35hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryThe supplier is a professional technical manufacturer and exporter involved in mechanical parts, general and special equipment, electrical instruments, auto parts, mining machinery, CNC equipment, and related products. It reports R&D capability, SDK availability, 3D design services, ODM services, OEM experience for well-known brands, and broad customization options. Production information lists annual outputs of 100,000 ring blowers, 5,000 roots blowers, and 3,000 water ring vacuum pumps, supported by 11–20 quality-control staff and three R&D engineers. Written procedures and records are reported for supplier assessment, corrective and preventive actions, and customer complaints. However, no new products were launched in the past year, raw-material traceability status is unknown, and no overseas warehouses, showrooms, agents, branches, or offline trade-show participation are reported. Certification holdings and specific customer cases are not provided.

Supplier typeThe supplier identifies as a professional technical supplier and operates across equipment manufacturing, mechanical parts, mining machinery, CNC equipment, electrical instruments, and auto parts. Its stated business scope also includes import and export of goods and technology, indicating both manufacturing and trading/export activity.

After-Sales capabilityThe supplier reports written procedures and followed records for corrective and preventive actions and for handling customer complaints, and emphasizes customer service and satisfaction. These records provide explicit evidence of service-management processes, although overseas service infrastructure is absent according to the provided data.

R&D capabilityThe supplier reports professional R&D capability, 3D software design services, SDK availability, ODM services, OEM services for well-known brands, and multiple customization modes. Nevertheless, it also states that no new products were launched during the past year, and its product-information R&D response is negative, so recent innovation output is limited.

Production capacityReported annual output includes 100,000 ring blowers, 5,000 roots blowers, and 3,000 water ring vacuum pumps. The supplier also reports 11–20 quality-control staff, exports to South America, Southeast Asia/Mideast, and Europe, and an off-peak lead time of one month, providing explicit evidence of established production and export operations.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, supported by professional R&D and 3D software design services. This indicates broad capability to adapt products to customer specifications.