What certifications does the product have?

The product holds ISO certification, and the company supports ISO9001 certificate customization.

How does the after-sales service work?

A 24-hour support team is available via phone, email, and online chat. Remote support via video calls is also provided for troubleshooting without sending technicians.

What is the noise level of this blower?

The noise level is less than 85dba, thanks to the belt-driven design that effectively reduces vibrations and noise.

Energy-Saving Negative Pressure Air Pump for Recirculating Aquaculture System (RAS)

Name: Energy-Saving Negative Pressure Air Pump for Recirculating Aquaculture System (RAS)
Brand: Shandong Zhaner Machinery Co., Ltd.
SKU: 2134394472

Shandong, ChinaShandong Zhaner Machinery Co., Ltd.

US$200.00-300.00

1 Piece

Sample price:US$200.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Usage

for Manufacture

Model NO.

WSR175

Flow Direction

Axial Flow

Pressure

High Pressure

Certification

ISO

Dimension

1.5cbm

Power

7.5-45kw

Capacity

19.65m3/Min-40.35m3/Min

Rpm

970-1730

Certificate

ISO9001

Working Temperture

20-200°C

Hscode

8414599040

Voltage

220V, 380V, 400V, 415V

Noise

<85dba

OEM

Yes

Phase

3 Phase

Model

Wsr175

Frequency

50 Hz

Bearing

NSK/Customized

Leadtime

5-7 Days

Transport Package

Wooden Box

Specification

850kg

Trademark

WSR

Origin

China

HS Code

84145990

Production Capacity

20000/Set

Key features

Stable Pulsation-Free Airflow: Delivers continuous, steady air supply ideal for wastewater treatment and pneumatic conveying.

Low Noise & Vibration Design: Belt-driven mechanism reduces noise to <85dba and minimizes vibration compared to direct drive.

High Efficiency & Durability: Stainless steel construction with NSK bearings ensures long-term stable operation under high pressure.

Flexible Customization Options: Supports OEM, custom dimensions, power, voltage, and RPM to meet specific project requirements.

24/7 Professional After-Sales: Round-the-clock support via phone, email, and remote video guidance for rapid issue resolution.

Rigorous Quality Control: 100% inspection including load, noise, and vibration tests to ensure strict quality standards.

Wide Application Range: Suitable for aquaculture, environmental protection, agriculture, and industrial pneumatic systems.

Fast Lead Time: Standard production lead time is 5-7 days, with peak/off-season times within 15 workdays.

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: ≤1.19h

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 the warranty period for this blower?

The product description does not specify a fixed warranty period, but it highlights a 24-hour after-sales support team available for immediate troubleshooting and solutions.

Q:Can the product be customized?

Yes, OEM and ODM services are available. Customization options include dimensions, power (7.5-45kw), capacity, RPM, voltage, and bearing brands.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 set.

Q:What are the main applications for this Roots blower?

It is widely used in recirculating aquaculture systems (RAS), wastewater treatment, pneumatic conveying, industrial drying, and environmental protection projects.

Q:What is the lead time for production?

The standard lead time is 5-7 days. During peak seasons, it is within 15 workdays.