Automated Bentonite Cat Litter Production Line Powered by Dual Pan Granulators

Scaling up to an industrial-grade cat litter factory requires precise control over pellet durability, moisture, and dust separation. In this case study, we break down our recently commissioned bentonite cat litter production line designed specifically for processing premium sodium-bentonite clay. By integrating two high-efficiency pan granulators with synchronized downstream machinery, this system achieves a continuous, automated workflow from raw clay to final retail bags.

Production Line Overview and Technical Layout

Our engineering team configured this production line to handle the unique physical properties of sodium bentonite, which relies on a precise balance of moisture and mechanical rolling to form hard, highly absorbent spheres.

1. Continuous Feeding and Dual Pan Granulation

The core of the line features two industrial pan granulators running in a parallel configuration. Raw, pulverized sodium bentonite is smoothly transported to the disc inlets via automated belt conveyors.

The Pan Granulator Advantage: As the discs rotate, adjustable water spray nozzles mist the clay powder. Under the influence of centrifugal force and gravity, the fine particles roll into uniform spheres.

Operational Flexibility: Utilizing two granulators instead of one large unit allows the plant to run at half capacity during maintenance windows, preventing total factory downtime.

2. Smart Weighing and Moisture Control

Automated Batching & Weighing: To ensure consistent water absorption and clumping performance, the raw clay and functional additives (such as deodorizing carbon or color indicators) are precisely measured by an electronic weighing system before entering the granulators.

Rotary Drum Drying: Freshly extruded bentonite spheres emerge from the discs with high surface moisture. The granules are instantly conveyed into a heavy-duty rotary drum dryer. This stage gently reduces the moisture content down to safe storage levels, locking in the pellet's structural strength without causing internal cracking.

3. Precision Sifting, Dust Removal, and Packaging

Premium cat litter must be virtually dust-free to meet market expectations.

Rotary Grading Sieves: The dried bentonite pellets enter a high-capacity screening machine. Oversized clumps are isolated for recycling, while undersized fines are automatically routed back to the pan granulators.

Automated Packaging: The qualified 1–4mm rounded pellets are dust-cleaned and moved to the terminal hopper. A high-speed, integrated weighing and packaging machine automatically fills, seals, and dates the final retail bags, minimizing manual labor.

Proven Results from Our Operational Project Site

This turnkey bentonite cat litter making line successfully solved the biggest challenges faced by modern cat litter manufacturers:

High Clumping Performance: The uniform ball shape created by our pan granulators maximizes the surface area of the sodium bentonite, resulting in instant, ultra-firm clumping when exposed to liquid.

Low Dust Generation: Because the rotary dryer and screening systems work in tandem with industrial dust collectors, the final packaged litter is clean, preventing tracking and clouding issues during end-consumer use.

Build Your Automated Cat Litter Line

Are you planning to establish a new sodium bentonite granulation facility or replace an inefficient batch-mixing setup? Our engineering team designs and manufactures complete, synchronized cat litter production lines tailored to your raw material profiles and factory layout footprints.