Horizontal Jar Mill
Desktop Four-Tank Jar Mill for Laboratory Grinding and Mixing
Item Number: PP-HJ02
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Product Overview


This desktop horizontal jar mill is a state-of-the-art laboratory milling solution designed for efficient grinding and homogeneous mixing of up to four samples simultaneously. Utilizing a rotating roller system that drives sealed ball mill jars, it employs friction and impact forces to reduce material size rapidly. The unit's compact, benchtop footprint and quiet operation, achieved through advanced noise insulation, make it suitable for shared laboratory environments, while its rugged construction guarantees consistent performance in continuous operation. Its ability to handle a wide range of jar sizes—from 250 ml to an impressive 3000 ml per station—provides unmatched flexibility for research, quality control, and small-scale production.
In material science and industrial R&D, preparing samples with precise particle size distributions is critical. This mill excels at processing fine, medium-hard, brittle, and dry or low-viscosity materials such as minerals, ceramics, glass, and certain chemicals. It supports both dry grinding for moisture-sensitive samples and wet grinding for suspensions, enabling a broad spectrum of experimental protocols. The option to incorporate inert gas or vacuum protection further extends its utility to oxygen-sensitive or hygroscopic materials, making it an essential tool in advanced battery research, pharmaceutical development, and catalyst synthesis.
Engineered for reliability, the system boasts an IP65-rated enclosure that safeguards internal components against dust and water ingress, even in harsh laboratory settings. Its polyurethane-coated rollers are both durable and resistant to chemical wear, minimizing maintenance intervals. Comprehensive safety features, including emergency stop, overload protection, and a power-off memory function, ensure operator safety and process integrity. Backed by CE certification, this grinding platform delivers the precision and longevity that demanding applications require, confirming it as a sound investment for any laboratory.
Key Features
- High-Capacity Four-Station Design: This mill features four independently driven grinding positions, allowing simultaneous processing of multiple samples or larger sample volumes without cross-contamination. With interchangeable jars ranging from 250 ml to 3000 ml, it adapts seamlessly from small R&D batches to pilot-scale quantities. The smart jar clamping mechanism ensures secure locking during rotation, preventing slippage and maintaining grinding efficiency.
- Precision Roller Speed Control up to 900 r/min: The three-roller configuration, coated with high-friction polyurethane, delivers consistent rotational energy to each jar. An electric actuator enables precise, reproducible roller positioning, optimizing the contact angle for efficient grinding. Variable speed control up to 900 r/min allows fine-tuning of the energy input, giving users the ability to achieve target particle sizes between 1 and 20 µm with minimal heat generation.
- Wide Range of Jar and Media Compatibility: To accommodate diverse material properties, the mill supports jars crafted from zirconia, tungsten carbide, agate, nylon, stainless steel, and polyurethane, among others. Grinding media are available in spherical and cylindrical forms and in materials such as zirconia, tungsten carbide, agate, stainless steel, and corundum. This versatility ensures that hardness, abrasion, and contamination concerns are addressed for each specific application.
- Inert Gas and Vacuum Grinding Capability: Sensitive samples prone to oxidation or moisture absorption can be processed under an inert gas atmosphere (e.g., argon or nitrogen) or under vacuum. The sealed jar design prevents ambient air ingress, maintaining sample purity throughout the grinding cycle. This feature is particularly beneficial for battery materials, reactive metal powders, and pharmaceutical ingredients that require an oxygen-free environment.
- Intelligent Safety and Control Features: The mill incorporates an advanced control system with digital timing, three operation modes (continuous, intermittent, alternating), and comprehensive safety protocols. Emergency stop and overload detection immediately halt operation to prevent equipment damage or personal injury. A power-off memory function restores the previous settings upon restart, eliminating the need for reprogramming after power interruptions.
- Easy Maintenance and Quick Roller Change: The electrically controlled sliding roller assembly enables rapid repositioning for cleaning or roller replacement, significantly reducing downtime. The tool-free quick-change design allows operators to swap rollers in minutes without specialized tools. This user-centric approach extends the system's service life and ensures consistent grinding performance over years of operation.
- Enhanced User Safety and Convenience: A transparent protective cover shields the operator from moving parts while allowing visual monitoring of the process. Integrated LED lighting illuminates the work area for clear observation, and efficient heat dissipation fans keep the drive system cool during prolonged runs. All controls are ergonomically positioned, reducing operator fatigue.
- Robust Build and Global Compliance: Constructed with heavy-duty components and finished to withstand the rigors of daily lab use, the mill meets IP65 ingress protection and carries CE certification. Its electrical system accepts 100–240 V AC, 50/60 Hz, and comes with plug options for North America, Europe, UK, and Asia, ensuring seamless integration into laboratories worldwide.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Advanced Ceramics | Grinding ceramic precursor powders to micron-scale particles for sintering studies, ensuring uniform densification. | Consistent particle size distribution enhances final ceramic mechanical properties. |
| Mineral Processing | Pulverizing ore samples for XRD and XRF spectroscopy, reducing preparation time while achieving representative subsamples. | Fast, contamination-free size reduction with high throughput. |
| Battery Research | Homogenizing cathode and anode materials for lithium-ion or solid-state battery research, often under inert atmosphere. | Prevents oxidation and ensures uniform electrode performance. |
| Pharmaceuticals | Milling active pharmaceutical ingredients (APIs) and excipients to improve solubility and bioavailability. | Precise particle control meets tight formulation specifications. |
| Pigment and Coating Development | Dispersing pigments in liquid vehicles for paint, ink, and coating formulations. | Consistent color development and stability with reduced agglomerates. |
| Geological and Mining Exploration | Grinding rock, sediment, and drill core samples for geochemical assays. | Rapid sample prep with minimal cross-contamination. |
| Catalyst Synthesis | Comminuting catalyst support materials like alumina or zeolites to increase surface area. | Uniform particle size enhances catalytic activity and reproducibility. |
| Food and Nutraceutical Processing | Grinding grains, spices, or herbal supplements to fine powders for analysis or production. | Stainless steel or nylon options maintain product purity and food safety. |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | PP-HJ02 |
| Processing Principle | Friction |
| Sample Characteristics | Fine, medium-low hardness, brittle, dry or low-viscosity |
| Processing Type | Grinding, Mixing |
| Max. Feed Size | < 5 mm |
| Output Particle Size | 1 – 20 µm |
| Number of Grinding Jars | 4 |
| Max. Jar Volume | 3000 ml |
| Min. Jar Volume | 250 ml |
| Jar Materials Available | Zirconia, Tungsten Carbide, Agate, Nylon, Stainless Steel, Polyurethane, etc. |
| Grinding Media Types | Spherical, Cylindrical |
| Grinding Ball Materials | Zirconia, Tungsten Carbide, Agate, Stainless Steel, Corundum |
| Grinding Mode | Dry, Wet |
| Inert Gas / Vacuum Protection | Yes |
| Number of Rollers | 3 |
| Roller Speed | 900 r/min |
| Roller Coating Material | Polyurethane |
| Roller Movement | Electrically controlled |
| Roller Type | Standard / Positioning |
| Main Functions | Continuous grinding, intermittent grinding, alternating grinding, emergency stop, timing, overload & hazard protection, power-off memory, electric sliding roller, quick roller change |
| Additional Features | LED illumination, protective cover, heat dissipation |
| Electrical | 100-120V / 200-240V AC, 50/60 Hz, 750 W |
| Power Plug Options | National standard, EU, US, UK, etc. |
| Net Weight | 88 kg |
| Dimensions (W×D×H) | 670 × 660 × 310 mm |
| Protection Rating | IP65 |
| Certifications | CE |
Why Choose This Product
- Proven Long-Term Reliability: Built with an IP65-rated sealed enclosure and chemical-resistant polyurethane rollers, this mill withstands dusty, humid, and corrosive environments. Its robust mechanical design and high-quality components minimize unscheduled downtime, ensuring years of trouble-free service even under 24/7 operation.
- Precision Engineering for Consistent Results: The combination of electric roller positioning, uniform roller speed control, and stable jar alignment guarantees repeatable grinding outcomes. Users can rely on narrow particle size distributions (1–20 µm) batch after batch, which is critical for quality control and method validation.
- Tailored to Your Application: With a broad selection of jar materials, grinding media, and operating modes, the system can be customized for nearly any material. Whether dry milling of ceramics or wet grinding under inert gas for battery powders, it adapts to your process requirements.
- Global Support and Compliance: CE certification and compliance with international electrical standards guarantee that the equipment meets rigorous safety and performance benchmarks. Our dedicated support team offers installation assistance, application training, and responsive after-sales service, maximizing your investment's value.
Contact us today to discuss your grinding challenges or request a customized solution that fits your workflow.
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