sales@vansunmix.com +86 571 8866 1513 Mon–Sat 8:00–18:00 (GMT+8)
EN
Hangzhou Wan Sheng Machinery Equipment Co., Ltd.

Crafted with devotion;
Flowing with intelligence.

Our product range covers a full spectrum of industrial agitators — including vertical agitators, side-entry agitators, submersible agitators, and magnetic-drive agitators — as well as a wide selection of impeller types, from turbine, ribbon, and screw to rake, anchor, propeller, and defoaming configurations. We also serve the chemical, environmental, and food industries with application-specific solutions.

10+
Years of Manufacturing
5000
Production Facility
30+
Countries Served
2600+
Units Shipped Globally
Our Catalog

Our Products

Built for tolerance. Engineered for uptime. Every unit ships with full traceability and 24-month warranty.

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Industries Served
Paper
Cosmetics
Food
New Energy
Textiles
Biotech
Environmental
Why Choose Us?

Six reasons procurement teams keep coming back.

01

Extensive Manufacturing Experience

Combining global and domestic design strengths with deep expertise in mixing equipment, reactors, and drive systems.

02

Strong Engineering Capability

Senior engineering team delivering custom solutions for top-entry, side-entry, submersible, magnetic, and twin-shaft mixers.

03

Strict Quality Management System

Scientific QA system covering raw material to finished product, trusted by long-term customers.

04

Excellent Production Processes

Precision manufacturing with rigorous process control and a “zero-skip” inspection philosophy.

05

Thorough Inspection Capabilities

Complete inspection system with individual accountability — every mixer and reactor proven for demanding conditions.

06

Reliable After-Sales Support

Honest, contract-driven service with careful shipment follow-up, building lasting customer trust.

Factory interior
Production line
ISO 9001
Certified since 2024
Inside Our Factory

Real engineering;
Real quality.

  • Engineering Expertise 10+ years of agitator R&D. In-house simulation for power, load, and service life.
  • Precision Manufacturing Turning, milling, drilling, cutting, welding — all done by senior machinists. German-style inspection standards ensure print-to-part consistency.
  • Reliable Supply Chain Technical partnerships with global motor, gearbox, and bearing brands for precisely matched drive and sealing systems.
  • Fully Certified High-Tech Enterprise, ISO 9001/14001/45001, multiple patents and software copyrights.
From Inquiry to Delivery

Six stages. Zero surprises.

A traceable, documented production journey for every order — large or small.

01

Consultation

RFQ review · spec confirmation

02

Drawings & Quote

Engineering review · detailed quotation

03

Production

Casting · machining · weld · assembly

04

QC & Testing

3-stage inspection · run-test

05

Packaging

Custom packaging as required

06

Shipping

FOB / CIF / DDP · shipped to customers worldwide

Audited. Certified. Traceable.

Certifications & Compliance

ISO
ISO 9001 Quality Management System

ISO
ISO 14001 Environmental Management System

ISO
ISO 45001 Occupational Health & Safety Management System
SW
Software Copyrights 3 Computer Software Copyrights Registered in China
UMP
Utility Model Patents 3 Valid China Utility Model Patents
SME
Tech SME Certificate Recognized Chinese innovative tech enterprise

Industry Insights

News & Resources

FAQ

Procurement questions, answered.

Still have questions? Talk to a senior engineer — not a sales chatbot. Average response time: 12h.

Talk to an Engineer
What should I do if the batching error of a side‑entry mixer is too large?
Check and calibrate the weighing batching system. Use full‑scale calibration for the smallest error. Adjust control parameters as needed. Operate closer to full capacity. Keep moving parts clear of debris and always lock out the machine before maintenance.
How to install and remove mixing equipment?
Align the bearing bore with the shaft centerline during installation. Apply pressure only to the tight-fit ring end face — never through the rolling elements, cage, or seals. Use a soft metal mounting sleeve and a press when available. For tight inner and outer ring fits, press both rings simultaneously with a disc or ring tool. Hammer force, if used, must be evenly distributed across the ring circumference.
Why do mixing equipment have different rotation speeds?
The equipment combines a low‑speed mixing section and a high‑speed dispersion section. Low‑speed mixing uses planetary gearing for thorough blending with no dead zones. High‑speed dispersion rotates along with the planetary carrier while spinning independently, delivering strong shear and dispersion. Different speeds serve different mixing functions, achieving ideal results in a short time.
How to prevent vortex formation in mixing equipment?
Vortexing means the liquid moves with the impeller as a whole without actual mixing. It can draw in air, cause chemical reactions, accelerate corrosion, and increase vibration. To eliminate vortexing, add baffles inside the tank. The recommended baffle width is about 1/12 to 1/10 of the tank inner diameter.
What causes shaft breakage in mixing equipment?
Shaft breakage is typically caused by incorrect selection (motor overload producing torque over 2× the rated output) or by frequent acceleration/deceleration shocks. Use proper sizing and avoid harsh speed changes.
What are the functions of mixing equipment in water treatment processes?
Mixing equipment is used for chemical dissolving, dilution, mixing, and coagulant/flocculant dosing. It provides blending, agitation, suspension, and dispersion to improve mass and heat transfer.
What are the key points for selecting a submersible mixer?
Allow 1 kW per 500 m³ tank volume (torque ≥ 60 Nm). For circular or loop-shaped tanks, power can be reduced by about 10%; for square or rectangular tanks, increase by 10%. A 10% rise in media density requires a 30% power increase. Installation height: for impeller diameter < 1 m, centerline distance from tank bottom = impeller radius + 0.7 m; for diameter ≥ 1 m, use radius + 1 m. For complex flow or velocity requirements, consult the supplier.
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