Is the air output oil-free?

Yes, the contactless rotor design ensures completely oil-free air discharge, suitable for clean applications.

What is the minimum order quantity?

The minimum order quantity is 1 set.

What is the noise level of the blower?

The blower operates with low noise, typically under 85dba, due to reduced pulsation from the three-lobe design.

Variable-Speed 3-Lobe Roots Air Compressor for Vacuum Drying

Name: Variable-Speed 3-Lobe Roots Air Compressor for Vacuum Drying
Brand: Shandong Zhaner Machinery Co., Ltd.
SKU: 2133888622

Shandong, ChinaShandong Zhaner Machinery Co., Ltd.

US$1,200.00-1,400.00

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

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

High Efficiency Design: Achieves up to 87% volumetric efficiency with precision CNC machining.

Oil-Free Operation: Contactless rotors ensure clean, oil-free air discharge with low maintenance.

Low Noise Performance: Three-lobe design reduces pulsation for quieter operation under 85dba.

Robust Construction: Heavy-duty cast iron housing with premium NSK bearings for long life.

Customizable Parameters: Power, capacity, RPM, and voltage are customizable to meet specific needs.

Fast Standard Delivery: Standard models available from stock with a typical lead time of 5-7 days.

ISO 9001 Certified: Manufactured under strict quality management with 100% factory testing.

Wide Application Range: Ideal for wastewater treatment, pneumatic conveying, and aeration systems.

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: ≤1.12h

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.