Disc Mixer

Product Overview

The Disc Mixer — also known as the Pan Mixer or Disk Mixer — is a continuous mixing machine that uses a rotating inclined disc to blend fertilizer raw materials through gravity-driven tumbling action. Its simple yet effective design makes it one of the most cost-efficient mixing solutions in the fertilizer industry.

Unlike enclosed drum mixers, the disc mixer provides visual monitoring of the mixing process, allowing operators to observe material flow and consistency in real time. This open design also makes cleaning and maintenance exceptionally easy — a significant advantage when switching between different material batches.

The disc mixer is widely used in organic fertilizer, compound fertilizer, and powder processing lines worldwide, particularly in small to medium-scale plants where operational simplicity and low investment cost are priority concerns.

Technical Specifications

The disc inclination angle is adjustable, allowing you to fine-tune residence time and mixing intensity for different material types.

Key Features

💰 Cost-Effective Design

• Simple mechanical structure — fewer moving parts, lower failure rate
• Lowest investment cost among all industrial fertilizer mixers
• Low energy consumption — typically 30-50% less power than horizontal mixers of similar capacity

👁️ Visual Process Monitoring

• Open disc design allows operators to see the mixing process in real time
• Easy to detect and correct material flow issues immediately
• Ideal for training new operators

🔧 Easy Maintenance & Cleaning

• No enclosed chamber — all surfaces are accessible for cleaning
• Changeover between different material batches takes minutes, not hours
• Minimal wear parts — only the disc lining and scraper need periodic replacement

🎯 Adjustable Mixing Parameters

• Disc inclination: 35-55° adjustable — steeper for faster throughput, shallower for longer mixing
• Disc speed: Adjustable via VFD (optional) for precise control
• Scraper position: Multiple fixed and adjustable scraper positions to optimize material flow path

🌱 Gentle on Materials

• Gravity-driven mixing action is gentle — no crushing or grinding of particles
• Preserves the integrity of granulated or pelletized materials
• Ideal for mixing after granulation (e.g., coating, additive blending)

Working Principle

1. Feeding: Raw materials are continuously fed onto the rotating inclined disc from above or the side
2. Tumbling & Rolling: As the disc rotates, materials follow a spiral path — lifted by the disc rotation, then tumbling downward due to gravity and inclination. This rolling-tumbling action creates gentle but continuous intermixing
3. Scraper Assistance: Fixed and adjustable scrapers guide the material flow, preventing buildup on the disc surface and directing material toward the discharge point
4. Continuous Discharge: Mixed material naturally flows over the disc edge at the lowest point and exits through the discharge chute into a conveyor or directly into the next machine (typically a granulator)

The mixing action is governed by three adjustable variables:

• Disc speed → controls centrifugal force and material lift height
• Disc inclination → controls residence time (steeper = faster exit)
• Scraper position → controls the flow path and discharge point

Advantages of Continuous Mixing

Applications

Why Choose Fertilizer Industry Leader?

Frequently Asked Questions

Q1: What type of materials is the disc mixer best for?

A: The disc mixer excels with dry to moderately moist (≤20% moisture) powder and small granule materials. It’s especially good for free-flowing materials where gentle mixing without particle breakage is desired.

Q2: Can the disc mixer handle wet, sticky materials?

A: Not recommended. For wet or sticky materials (>20% moisture), we recommend the Double Shaft Mixer, which handles up to 35% moisture content.

Q3: How do I adjust the residence time of materials in the disc?

A: Three ways — (1) adjust the disc inclination angle (steeper = shorter time), (2) adjust disc rotation speed via VFD, (3) reposition the scrapers to alter the flow path.

Q4: What is the typical wear life of the disc lining?

A: Rubber linings typically last 6-12 months under normal use. Polypropylene linings last 12-18 months. Stainless steel linings are virtually permanent but cost more upfront.

Get Your Custom Quote

Looking for a cost-effective, reliable mixing solution for your fertilizer plant? Let’s discuss your requirements:
Tell us your target capacity and material types — we’ll recommend the optimal disc mixer model with a detailed quotation within 24 hours.