Disc Pan Granulator

The Disc Pan Granulator (also called a pan pelletizer, disc pelletizer, or balling disc) is a robust, inclined rotating disc that agglomerates fine, dry or slightly moistened powders into spherical, uniformly sized granules through a controlled rolling and tumbling action. Its unique design combines material feeding, liquid spraying, nucleation, growth, and natural classification in a single process — correctly sized granules automatically overflow the pan rim, while undersized seed material remains inside to continue growing. This eliminates the need for external screens and recycle loops, making it the most efficient granulation solution for a vast range of materials: iron ore and manganese concentrates, NPK compound fertilizers, bentonite clay, carbon black, fly ash, and many other mineral and chemical powders. With adjustable disc tilt (40–60°), variable speed rotation, and precision spray bars, the disc pan granulator gives you full control over final granule size (typically 3–20 mm) and hardness, producing strong, dust-free pellets ready for drying, calcination, or direct packaging.

• Self-Classification Produces Exceptionally Uniform Granules: The rotating pan naturally segregates particles by size: larger, heavier granules rise to the surface and discharge, while smaller “seeds” stay in the pan bed. This yields a narrow size distribution — typically over 90% of granules within the target range — reducing waste, improving downstream process efficiency, and enhancing product marketability.

• High Granule Strength Without Excessive Binder: Our optimized pan geometry and scraper arrangement create a dense, layered pellet structure. The rolling action compacts material layer by layer, achieving drop strengths and crush resistance that meet or exceed industry standards, often using 20–30% less binder than other agglomeration methods.

• Broad Material Versatility: One machine handles a wide spectrum of powders — from abrasive iron ore concentrates and sticky fertilizer compounds to ultra-fine fly ash and hydrophobic carbon black. By simply adjusting tilt, speed, and spray rate, you can switch between materials without mechanical modifications.

• Heavy-Duty Wear Protection for Long Service Life: The pan bottom and side walls are protected by high-manganese steel (Mn13), high-chromium cast iron, or specialized polyurethane/ceramic liners, depending on material abrasiveness. Hardfaced or tungsten carbide-tipped scrapers maintain an optimal protective layer on the pan surface, extending liner life to 12–24 months even under continuous operation.

• Precision Liquid Distribution System: Integrated stainless steel spray bars with anti-clog atomizing nozzles deliver water, binder solutions, or chemical additives evenly across the rolling bed. The controlled droplet size and spray pattern prevent localized overwetting and ensure every seed particle receives the moisture needed for uniform growth.

• Low Operating Cost, High Reliability: The simple, open design has no internal screens, no complex sealing, and only a single main drive motor. A hardened helical gear reducer directly coupled to the pan shaft eliminates belt or chain maintenance. Sealed spherical roller bearings handle combined axial/radial loads, and the entire machine is built on a heavy welded frame for decades of service.

• Scalable from Lab to Full Production: We offer pan diameters from 500 mm (for R&D and process testing) to 7500 mm (for industrial-scale production up to 30 TPH per unit). Multiple pans can be installed in parallel for large-capacity plants, and each pan operates independently for maximum flexibility.

Proven Granulation Performance Across Industries
Based on operational data collected from 150+ disc pan granulator installations in ore pelletizing plants, fertilizer factories, and chemical processing facilities (2022–2024):

• Granule Size Uniformity Exceeds 90%: Users across sectors report that 90–95% of output granules fall within the target size range without external screening, drastically reducing recycle rates and downstream processing costs.

• Binder Savings of 20–30%: Fertilizer and ore plants using our optimized pan design and spray system have reduced bentonite, clay, or organic binder consumption by a quarter on average, saving $15,000–$50,000 per year in a medium-scale operation.

• Liner Life of 12–24 Months in Continuous Duty: High-manganese steel liners in iron ore service reach 12–18 months; polyurethane liners in fertilizer applications exceed 24 months, cutting maintenance shutdowns to a single planned outage per year.

• Payback Within 6–12 Months: A single QP-3600 granulator producing premium pelletized fertilizer or high-value ore pellets typically recovers its full installed cost in under one year through product premium pricing and lower binder consumption.

• Reliable 24/7 Operation: The simple mechanical design requires only daily grease top-up and scraper gap checks. Operators report over 340 production days per year with minimal unplanned downtime.

Applications: What Can Your Disc Pan Granulator Process?
Our Disc Pan Granulator is the core agglomeration equipment for:

• Iron Ore & Ferroalloy Concentrates: Magnetite, hematite, chromite, manganese ore fines — pelletized into green balls for blast furnace or DRI feed.

• NPK & Compound Fertilizers: Urea, DAP, MOP, SSP, and micro-nutrient powders agglomerated into uniform 2–5mm fertilizer granules for precision agriculture.

• Organic & Bio-Organic Fertilizers: Composted manure, peat, humic acid, and bio-sludge blended and pelletized into organic soil conditioners.

• Industrial Minerals & Chemicals: Bentonite clay, bauxite, fluorspar, phosphate rock, calcium carbonate, and carbon black — pelletized for transport, calcination, or as a final product form.

• Waste & By-Product Recycling: Steel mill dust (BF/BOF), fly ash, gypsum, and other powdery industrial residues granulated for safe disposal, landfilling, or reuse.

Customize Your Disc Pan Granulator System
Tell us your powder type, desired granule size, and required throughput. We will configure the complete system:

• Pan Diameter: Lab (500mm) to production (7500mm), sized for your capacity

• Liner Material: Mn13 steel (standard), polyurethane, high-Cr iron, or ceramic — matched to your material's abrasion and stickiness

• Scraper Type: Hardfaced, carbide-tipped, or ceramic-edged for maximum life

• Spray System: Manual flow control or fully automated PID-controlled liquid dosing

• Drive & Control: VFD with local panel, or full integration into your plant’s PLC/DCS

• Downstream Equipment: We supply complete lines including mixer, dryer, cooler, vibrating screen, and bagging system
  Standard disc pan granulators ship in 15–25 working days. Complete engineered systems in 30–45 working days.

  
  

  [Send Inquiry & Get Your Free Quote]