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Advanced Industrial Processing
Equipment Manufacturer

Changzhou Doing Machine Co., Ltd specializes in high-performance Paddle Dryers, Vacuum Dryers, Powder Mixers, Wet Granulators, Air Classifier Mills, and Conveying Equipment for pharmaceutical, chemical, food, and advanced materials industries.

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About Doing Machine

Changzhou Doing Machine Co., Ltd is a professional manufacturer and supplier of industrial processing equipment based in China. With years of engineering expertise, we design and produce high-efficiency, reliable, and GMP-compliant machinery for drying, mixing, granulating, milling, and material handling applications.

Our product line includes Paddle Dryers, Vacuum Dryers, Powder Mixers, Wet Granulators, Impact Mills, Air Classifier Mills, and Conveying Systems. Each machine is engineered for precision, durability, and optimal performance in demanding industrial environments.

10+

Years Experience

50+

Countries Served

Factory and machinery

Our Products

High-performance industrial equipment designed for drying, mixing, granulating, milling, and conveying applications across multiple industries.

Paddle Dryer

Paddle Dryer

High-efficiency paddle dryer for continuous or batch drying of powders and granules. Ideal for heat-sensitive materials.

  • • Double-walled jacketed design
  • • Low energy consumption
  • • GMP compliant
  • • Customizable capacity
Vacuum Dryer

Vacuum Dryer

Gentle drying under vacuum for heat-sensitive and high-purity materials. Suitable for pharmaceutical and fine chemical applications.

  • • Uniform heat distribution
  • • Low operating temperature
  • • Explosion-proof options
  • • PLC control system
Powder Mixer

Powder Mixer

High-shear and low-shear powder mixers for homogeneous blending of dry powders and granules.

  • • 3D motion for uniform mixing
  • • Fast discharge system
  • • Dust-tight design
  • • CIP/SIP options
Wet Granulator

Wet Granulator

High-shear wet granulator for producing uniform granules in pharmaceutical and food industries.

  • • Fast granulation cycle
  • • Easy cleaning and maintenance
  • • Variable speed control
  • • GMP compliant design
Air Classifier Mill

Air Classifier Mill

Precision grinding and classification in a single unit. Ideal for fine and ultra-fine powder production.

  • • Particle size range: 2–74 μm
  • • High classification efficiency
  • • Wear-resistant components
  • • ATEX compliant options
Impact Mill

Impact Mill

High-speed impact mill for coarse to fine grinding of brittle and fibrous materials.

  • • Simple and robust design
  • • Low maintenance
  • • High throughput
  • • Easy screen replacement
Equipment Image

Fluid Bed Dryer

Efficient drying and granulation using fluidized bed technology for improved product quality.

  • • Uniform particle drying
  • • Fast drying cycles
  • • Integrated Wurster coating
  • • PLC automation
System Image

Conveying Equipment

Pneumatic and mechanical conveying systems for safe and efficient powder transfer.

  • • Dense and dilute phase options
  • • Leak-free transfer
  • • CIP-capable design
  • • Fully automated control
Mixer Image

Ribbon Blender

Horizontal ribbon mixer for gentle yet thorough blending of powders and granules.

  • • Low shear mixing
  • • Full discharge valve
  • • Explosion-proof motors
  • • Customized volume options
Dryer Image

Rotary Dryer

Continuous rotary dryer for high-capacity drying of granular and crystalline materials.

  • • High thermal efficiency
  • • Robust drum design
  • • Adjustable inclination
  • • Integrated dust collection
Granulator Image

Extrusion Spheronizer

Complete system for extrusion and spheronization of pellets for pharmaceutical use.

  • • Consistent pellet size
  • • Easy process scale-up
  • • Sanitary design
  • • Variable speed control
Mill Image

Pin Mill

High-precision pin mill for fine grinding with narrow particle size distribution.

  • • Interchangeable discs
  • • Air-cooled design
  • • Low noise operation
  • • CE certified

Why Choose Doing Machine

GMP & ISO Compliant

All equipment is designed and manufactured in accordance with international standards including GMP, ISO, and CE certifications.

High Efficiency

Our machines are engineered for maximum throughput, minimal energy consumption, and consistent product quality.

Global Support

We provide comprehensive technical support, installation guidance, and after-sales service to clients in over 50 countries.

1000+
Machines Installed
50+
Countries Served
10+
Years Experience
98%
Customer Satisfaction

Frequently Asked Questions

What industries do your machines serve?

Our equipment is widely used in pharmaceutical, chemical, food, battery materials, ceramics, and agrochemical industries.

Are your machines GMP compliant?

Yes, all our pharmaceutical-grade equipment is designed and manufactured in compliance with GMP standards.

Do you offer customization?

Yes, we provide OEM and ODM services. Our engineering team can customize equipment based on your process requirements.

What is the delivery time?

Typical delivery time is 30–60 days depending on the machine type and customization level.

Do you provide installation and training?

Yes, we offer remote and on-site installation guidance, commissioning support, and operator training.

What after-sales services do you offer?

We provide spare parts supply, technical troubleshooting, maintenance support, and equipment upgrades.

Get in Touch

For product inquiries, technical support, or custom solutions, please visit our official website to contact the team.

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