200–350 mesh fineness · 200–300 kg/h capacity · Stable structure, European-level quality

1. Project Background

In Japan, the market for green juice (aojiru) and plant-based health powders is well established, with very strict expectations on mouthfeel, color and nutritional retention.
For this project, our Japanese customer – a health food manufacturer – needed to process dried wheatgrass into a fine powder that would serve as the primary ingredient in their green juice products.

Their core requirements were clearly defined:

• Raw material: dried wheatgrass

• Product use: main powder component of green juice

• Target fineness: 200–350 mesh, smooth and easy to dissolve

• Capacity: 200–300 kg/h continuous production

To meet these targets, the customer decided to introduce a dedicated wheatgrass pin mill, integrated into their existing green juice production line.

2. Customer Profile & Application

Customer type:
A Japanese health food company focused on:

• Green juice powders;

• Nutritional meal replacements;

• Plant-based functional drink powders.

Application scenario:

• Upstream, the customer has already completed washing, drying and basic pre-treatment of wheatgrass;

• The new machine is dedicated to fine grinding wheatgrass to 200–350 mesh, supplying the green juice blending and packaging sections;

• The final powder must have uniform particle size, good dispersibility and a clean green appearance, suitable for small sachets and can filling.

3. Our Solution (Equipment & Process)

After analyzing the required fineness, capacity and line layout, we supplied:

JB-350 Wheatgrass Pin Mill
Designed for 200–350 mesh, with a capacity of 200–300 kg/h

(1) Pin Mill Design Optimized for Fibrous Wheatgrass

• The JB-350 uses a high-speed pin mill (impact) grinding principle, allowing the fibrous wheatgrass to be efficiently reduced by impact and shear;

• The clearance between rotor and stator is adjustable, enabling the customer to tune fineness within the 200–350 mesh range according to different product recipes;

• The design is well suited for low-density, high-fiber plant materials, ensuring stable, continuous grinding without frequent clogging.

(2) Stable Structure with “European-Level” Quality Feel

• The JB-350 frame and housing are designed for high rigidity, resulting in low vibration and low noise during operation;

• The drive and main shaft are selected with a generous safety margin for long-term continuous duty;

• Key components are machined and assembled to high precision, following a design philosophy that aligns with European machinery standards – a point that was especially appreciated by the Japanese customer.

(3) Easy Cleaning & Maintenance for Food Applications

• The grinding chamber interior is smooth and easy to clean, reducing product build-up and cross-contamination between batches;

• The pin discs are designed for convenient removal and reinstallation, shortening maintenance and cleaning downtime;

• The overall layout takes into account typical Japanese factory constraints, allowing the mill to be integrated smoothly into the existing green juice production line.

4. Key Technical Data (Overview)

5. Final Testing & Customer Acceptance

Once installed at the Japanese plant, the JB-350 underwent several rounds of final testing with the customer’s actual wheatgrass material:

• Under the specified operating conditions, the mill consistently produced powder within the 200–350 mesh range, with a narrow particle size distribution;

• The resulting powder showed a bright green color, minimal visible coarse fiber, and very good dispersibility in water – meeting the customer’s internal standards for green juice base powder;

• During continuous operation, the machine ran smoothly with stable current, low vibration and reliable safety interlocks.

After the full test program, the JB-350 wheatgrass pin mill successfully passed the customer’s on-site acceptance and was officially released into production.

6. Conclusion

The JB-350 wheatgrass pin mill delivered to Japan was engineered around four core expectations:

200–350 mesh fine grinding, 200–300 kg/h stable capacity, robust structure, and a quality level comparable to European machines.

In practice, the mill has provided the customer with:

• Reliable, controllable fine grinding capability for their green juice raw material;

• Improved consistency in powder fineness and appearance, supporting a premium product image;

• A solid equipment foundation for future expansion of plant-based and green health products.

For other manufacturers producing green juice powders or plant-based health powders, this type of pin mill specifically tuned for fibrous plant materials is a proven step up from lab-scale or general-purpose grinders to stable, industrial-scale production.