1.5–2 T/H Natural Cat Litter Pellet Making Equipment in Canada

Project Overview and Investment Scope

The investment covered the pelletizing stage rather than a new factory. The existing hammer mill remained responsible for particle-size reduction, while the dryer prepared the raw material for consistent processing. Additional conveying, screening, cooling, and packaging equipment would be selected or adapted according to the final production layout.

Why Hemp Hurd Was Selected for Cat Litter

Hemp hurd is the woody core of Cannabis sativa stalks, separated from the outer bast fibres during fibre processing. It has a porous structure and can be used in absorbent products, including animal bedding and certain types of plant-based cat litter.

For this customer, the attraction was not simply that hemp was a natural material. The company already had a reliable source of hurd and existing equipment for preparing it, which reduced the number of new processing stages required.

• Existing feedstock supply. Hemp hurd was generated by the company's own fibre-processing operation.
• Established pretreatment capability. The hammer mill and dryer could be retained, subject to confirming that their output met the pellet mill's requirements.
• Product differentiation. A hemp-based litter offered an alternative to conventional mineral litter and wood-based products.
• Binder-free product development. The target formulation used hemp hurd without added synthetic binders, provided that pellet strength could be achieved and maintained during testing.
• Potential product diversification. Different pellet diameters could be evaluated for cat litter, small-animal bedding, and other absorbent applications.

The final product still needed to meet practical performance requirements, including moisture absorption, pellet durability, dust generation, packaging stability, and suitability for the intended animals. These characteristics depend on the raw material and the finished pellet, rather than on the pellet mill alone.

Raw Material Preparation Before Pelletizing

The project used milled hemp hurd with an incoming moisture content of approximately 8–10%. The material was prepared to a particle size of roughly 2–6 mm before entering the pelletizing stage.

Hemp hurd contains cellulose, hemicellulose, lignin, and mineral constituents, but its composition varies with cultivar, growing conditions, harvesting, and fibre-separation methods. The customer's material was assessed for its ability to form stable pellets without an added binder.

Moisture control was especially important. Material that is too dry may not bind adequately, while excessive moisture can impair pellet formation and increase the drying load after processing. The reported 8–10% moisture content was a project reference, not a universal operating requirement for every hemp hurd source.

Selected Machine and Technical Specifications

RICHI recommended the MZLH520 biomass pellet mill with a 520 mm ring die and a forced-feeding arrangement. The customer selected the configuration without a conditioner because the project was designed around the existing upstream preparation process and the results of material testing.

The 1.5–2 T/H output is a reference range for suitable operating conditions, not a guaranteed rate for every hemp formulation. Actual throughput depends on hurd density, moisture, particle-size distribution, die compression, pellet durability requirements, and feeding stability.

How the MZLH520 Handles Lightweight Hemp Hurd

Hemp hurd is relatively light and can be difficult to feed consistently when it is fluffy or poorly consolidated. Irregular feeding can cause fluctuations in die loading, which in turn affect output and pellet quality.

The forced feeder was therefore an important part of this project. It helps move low-density material into the pelletizing chamber at a controlled rate instead of relying entirely on gravity.

• Forced feeding. The double-auger arrangement helps maintain a more consistent material supply to the die.
• Compression through the ring die. The rotating die and rollers compact the prepared hurd into pellets.
• Die-hole finish. A polished die-hole surface can help limit material buildup and improve material flow when matched to the feedstock.
• Wear management. Hemp's mineral content and any contaminants in the raw material can affect wear, making inspection and cleaning important.

The project used a die compression ratio of approximately 1:5.5 as the starting configuration. This value was selected for the tested hemp hurd rather than as a standard specification for all plant-fibre cat litter.

Die compression, moisture, and particle size must be evaluated together. Excessive compression can increase friction and power demand, while insufficient compression may produce fragile pellets. The appropriate configuration is the one that achieves the required durability without creating unnecessary operating costs.

Pre-Sale Testing and Equipment Validation

Because the customer had not previously pelletized hemp hurd for cat litter, material testing was an important part of the equipment-selection process.

1. Material sample evaluation. The customer supplied approximately 300 kg of milled hemp hurd at around 9% moisture for testing.

2. Die configuration assessment. Tests evaluated a 4 mm die with a compression ratio of approximately 1:5.5 and a polished hole finish.

3. Forced feeder testing. The feeding arrangement was evaluated for its ability to handle fluffy, low-density hurd without material bridging.

4. Product inspection. The resulting pellets needed to be checked for strength, fines, moisture, and consistency before final operating settings were established.

5. Operating guidance. The test results provided a basis for setting feeder speed, die clearance, and routine inspection procedures.

The project also used a reference video from a hemp-processing application in Alberta. The demonstration included a reported fines measurement of approximately 0.2% under the test conditions shown. That figure should not be interpreted as a guaranteed result for every raw material, machine setting, or finished-product handling system.

Production Workflow from Hemp Hurd to Cat Litter

The customer's existing equipment made it possible to introduce pelletizing without rebuilding the entire plant. The process was organized around five main stages.

1. Raw material preparation. Hemp hurd is separated from unsuitable contaminants and checked for moisture and consistency.

2. Grinding. The existing hammer mill reduces the hurd to the required particle-size range.

3. Moisture adjustment. The existing dryer prepares the material for the validated pelletizing conditions. Any further adjustment should be based on testing.

4. Pelletizing. The MZLH520 hemp cat litter pellet machine compacts the prepared hurd through the 4 mm ring die.

5. Cooling, screening, and packaging. The pellets are cooled and screened to remove fines and oversized or broken material before packaging.

Cooling and screening remain important even when the pellets appear firm at the die outlet. Fresh pellets can be warm and vulnerable to breakage during conveying. Screening and controlled handling help maintain the finished-product quality that customers receive.

Installation and Delivery to Manitoba

The MZLH520 was shipped from Qingdao, China, to Vancouver, Canada, before continuing inland to Manitoba. The reported ocean transit was approximately 22 days, followed by about four days for customs clearance. The subsequent rail and truck route covered approximately 2,100 km.

The project used a 40-foot open-top container for shipment. Final packaging, container suitability, lifting arrangements, and inland transport should always be confirmed against the machine's actual shipping dimensions and weight.

Installation and commissioning took approximately three weeks. A local distributor in Winnipeg supported the installation, while a RICHI service engineer provided on-site technical assistance for two weeks.

The main installation checks included:

• Confirming the reinforced concrete foundation and machine alignment.
• Checking the electrical supply, motor protection, and control connections.
• Adjusting forced feeder speed to suit the low-density raw material.
• Setting and inspecting the die-to-roller clearance according to the machine's operating instructions.
• Establishing cleaning and maintenance procedures for the die housing and material-contact areas.
• Checking the cooling and conveying arrangement before continuous production.

For Canadian installations, electrical compatibility must be confirmed before shipment, including voltage, frequency, motor configuration, and the plant's available electrical capacity. The final foundation and installation requirements should be based on the approved machine drawings.

Operating Results After Twelve Months

After twelve months of operation, the company's production manager reported that the MZLH520 was running approximately 10 hours per day and that annual hemp litter output had reached around 3,000 tons. The 4 mm pellets were marketed through pet-product retailers.

The reported wholesale selling price was approximately CAD 1,800 per ton. At 3,000 tons annually, that price corresponds to a potential gross sales value of CAD 5.4 million before production, packaging, freight, distribution, sales, and other business expenses. This calculation is not a statement of net profit or a guaranteed financial return.

The reported delivered equipment investment was approximately CAD 140,000. A reliable payback calculation would need to include the actual contribution margin, electricity consumption, labor, maintenance, packaging, product testing, transport, and sales-channel costs. The value of the equipment cannot be assessed from gross sales alone.

From an operating perspective, the important performance checks remained:

• Stable feeding of low-density hurd.
• Consistent pellet diameter and durability.
• Manageable fines after cooling, screening, and transport.
• Controlled die and roller wear.
• Repeatable finished-product moisture and absorbency.

These measures provide a more dependable basis for assessing the project than a single output or revenue figure.

Additional Applications for Hemp Pellets

The same raw material may support other pellet products, provided that each application is tested and the machine is configured accordingly.

Changing pellet diameter generally requires a suitable die and process adjustment. A product intended for industrial oil absorption also requires separate performance testing and should not automatically be treated as interchangeable with animal bedding or cat litter.

Technical Considerations for Natural Cat Litter Production

Producing natural cat litter requires more than compressing plant material into a cylindrical shape. The finished pellets must remain manageable during packaging and transport while providing the absorption and user experience expected by the target market.

• Raw material consistency. Variations in hurd size, moisture, and fibre composition can affect pellet quality.
• Binder-free formulation. The ability to operate without added binders must be demonstrated through testing of the actual material.
• Dust control. Hammer milling, pellet cooling, screening, and bagging can all generate fines, so the full process should be considered.
• Product safety. Claims relating to fragrance, antimicrobial effects, biodegradability, or flushing suitability require evidence appropriate to the finished product and its intended market.
• Maintenance. Regular checks of die condition, roller wear, feeding performance, and dust accumulation help maintain stable operation.

The machine's configuration can support a natural plant-fibre litter concept, but product claims should be based on the finished litter's tested performance rather than assumed properties of the raw material alone.

Developing Hemp-Based Pet Products in Canada

For hemp processors in Manitoba, Alberta, Saskatchewan, Ontario, and other Canadian regions, converting hurd into pellets offers a potential route to diversify existing operations. The commercial case depends on the quality and consistency of the hurd supply, the availability of suitable processing equipment, and access to customers willing to purchase the finished product.

In this Manitoba project, the MZLH520 provided the pelletizing stage while the customer retained its existing grinding and drying equipment. This approach limited the initial equipment scope and allowed the business to evaluate a higher-value application for its hemp byproduct.

RICHI Machinery can help hemp processors assess raw materials, select ring die pelletizing equipment, and plan the required processing stages. For a project involving natural cat litter, the most useful starting point is to establish the target pellet diameter, incoming moisture, desired durability, acceptable fines level, and expected production volume before finalizing the equipment configuration.

If you are evaluating natural cat litter pellet making equipment in Canada, contact RICHI Machinery to discuss your hemp hurd or other plant-fibre materials, existing equipment, and finished-product requirements.