How noisy is the operation?

With advanced dynamic balancing and precision machining, the blower operates at low vibration and reduced noise levels, suitable for industrial environments.

What is the maintenance requirement?

Roots blowers have a simple structure with fewer wearing parts, making maintenance easy. Regular oil change and filter cleaning are usually sufficient.

Can the blower run 24 hours continuously?

Yes. Our blowers are designed for continuous 24/7 industrial operation, especially in wastewater treatment and aeration systems.

Do you provide OEM or customization?

Yes. We support OEM branding, voltage customization, material upgrade, and special configuration based on customer requirements.

Variable-Speed Negative Pressure Air Pump for Mineral Mining Industrial

Name: Variable-Speed Negative Pressure Air Pump for Mineral Mining Industrial
Brand: Shandong Zhaner Machinery Co., Ltd.
SKU: 2133138282

Shandong, ChinaShandong Zhaner Machinery Co., Ltd.

US$1,000.00-1,200.00

1 Piece

Sample price:US$200.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Usage

for Manufacture

Model NO.

WSR125

Flow Direction

Axial Flow

Pressure

High Pressure

Certification

ISO

Dimension

0.54cbm

Power

15-90kw

Capacity

2.34m3/Min-6.04m3/Min

Rpm

1100-1950

Certificate

ISO9001

Working Temperture

20-200°C

Hscode

8414599040

Voltage

220V, 380V, 400V, 415V

Noise

<85dba

OEM

Yes

Phase

3 Phase

Model

Wsr100

Frequency

50 Hz

Bearing

NSK/Customized

Leadtime

5-7 Days

Transport Package

Wooden Box

Specification

175kg

Trademark

WSR

Origin

China

HS Code

84145990

Key features

Lifetime Technical Support: Comprehensive technical support provided for the entire lifespan of the equipment.

12-Month Warranty: Covers mechanical defects for 12 months with free parts and labor.

OEM and Customization: Full OEM support with flexible customization options for design and branding.

Fast Delivery: Standard models ship immediately; custom orders processed within 5-7 days.

Precision Engineering: CNC machining ensures tolerance accuracy within 0.02-0.04 mm.

Quiet Operation: Designed for low noise levels (50-70dba) compared to Roots blowers.

Compact and Efficient: Space-saving design ideal for tight industrial spaces.

100% Quality Testing: Every unit undergoes rigorous visual and functional testing before shipment.

Company profile

High Repeat Buyers ChoiceRaw-Materials Traceability100% Finished Products InspectionManagement Certification

Shandong Zhaner Machinery Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.83h

AI-Powered supplier vetting

SummaryThe supplier is a combined company focused on blower, environmental-protection equipment, and gas or liquid separation and purification equipment, with related manufacturing, repair, and parts-processing activities. It demonstrates broad customization, ODM and OEM services, recent product development, documented R&D processes, CAD capability, and 20 R&D patents. Production data shows annual output for four blower product categories, while lead times are stated as within 15 working days in both peak and off-season periods. Overseas services include installation, debugging, repair, maintenance, and training, with Indonesia identified as an overseas service market. The supplier reports some brand OEM experience but no Fortune 500 cooperation. Certification details are insufficient, and its supplier-service assessment process lacks written procedures or followed records. Financial information only identifies years 2021–2023, without sufficient evidence to assess financial credibility.

Supplier typeThe supplier is identified as a combined company rather than an offshore company. Its stated scope covers fan and blower manufacturing and sales, environmental-protection equipment, gas compression machinery, liquid separation and purification equipment, general and special equipment manufacturing and repair, and mechanical parts processing and sales.

After-Sales capabilityThe supplier offers overseas debugging, repair, maintenance, training, and equipment installation, and identifies Indonesia as an overseas service market. However, its service-capability assessment has no written procedures or followed records, and only some approved-supplier names were provided, indicating service offerings are evidenced but service governance is incompletely documented.

R&D capabilityThe supplier reports new products during the past year, ODM services, two R&D engineers, CAD capability, 20 R&D patents, and documented design-input, output, review, verification, and validation records available for audit. It also reports no available SDK, which limits the evidenced software-development capability, but the overall product R&D evidence supports a positive assessment.

Production capacityReported annual output includes 10,000 rotary vane blowers, 2,000 air-bearing turbo blowers, 500 magnetic-bearing turbo blowers, and 10,000 Roots blowers. The supplier also states lead times within 15 working days in both peak and off-season periods and has uniformly followed finished-product inspection instructions, providing explicit evidence of production capacity and operational control.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, customization from designs, flexible customization, and minor customization. It also provides ODM services, indicating broad product-design and adaptation support.

Product Q&A

Q:What is a Roots blower used for?

A Roots blower is widely used for wastewater treatment, aquaculture, pneumatic conveying, cement, and chemical industries. It provides a stable airflow for aeration and industrial gas transfer applications.

Q:How does a Roots blower work?

It is a positive displacement air machine that uses two synchronized rotors to move air from the inlet to the outlet without internal compression, ensuring stable and continuous airflow.

Q:What is the advantage of a Roots blower compared to a centrifugal blower?

Roots blowers provide constant air volume regardless of pressure changes, making them more stable in low to medium pressure applications such as aeration systems.

Q:How do I choose the right model?

Selection depends on: Air flow requirement Pressure Application type We can provide free technical selection support based on your project data.

Q:Is the blower energy efficient?

Yes. Our design uses precision rotors and optimized clearance control, which helps reduce air leakage and improve overall energy efficiency.