rod mill
Sealed Four Roll Sixteen Jar Laboratory Rod Mill Fine Powder Sample Preparation Equipment
Item Number: PP-RM05
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Product Overview
This high-throughput laboratory rod mill is an advanced sample preparation system engineered specifically for fine grinding and pulverizing raw geological, metallurgical, and industrial mineral samples. Powered by a robust 2.2 kW electric motor that drives a four-roller support mechanism, the system simultaneously rotates up to sixteen independent grinding barrels. This multi-barrel architecture allows laboratory technicians to process multiple samples concurrently under identical mechanical conditions, significantly elevating laboratory productivity and processing consistency.
The equipment is tailored for demanding analytical applications across geology, metallurgy, coal mining, building materials, industrial ceramics, chemical engineering, and material research institutions. It effectively processes a wide variety of hard and brittle materials, including gold ore, manganese ore, lead-tin ore, limestone, coal, metallurgical coke, gangue, and diverse non-metallic minerals. By reducing raw feeds with grain sizes up to 2 mm into uniform micro-powders ranging from 180 to 400 mesh (with adaptable ranges from 80 to 200 mesh depending on configuration), the unit prepares optimal specimens for downstream X-ray fluorescence (XRF), atomic absorption spectroscopy (AAS), wet chemical analysis, and instrument-based quality verification.
Built for long-term operational stability and clean laboratory integration, the complete mechanical assembly is enclosed within a durable cold-rolled steel housing. The heavy base frame incorporates specialized anti-vibration rubber dampening pads that suppress mechanical oscillations and minimize operational noise during continuous tumbling. Combining structural rigidity, compact geometry, effortless cleaning protocols, and minimal maintenance demands, this grinding system offers exceptional operational safety and dependable long-term performance in high-workload industrial testing environments.
Key Features
- Sixteen-Jar High-Throughput Architecture: The four-roller drive system supports up to sixteen grinding barrels operating simultaneously, allowing analytical laboratories to process large sample batches rapidly without cross-contamination.
- Tumbling Rod Impact & Friction Grinding: Internal high-density steel rods tumble within rotating barrels, subjecting materials to a combination of high-energy impact, inter-particle collision, and wall friction that delivers fine, homogeneous powder output.
- Sealed Cold-Rolled Steel Enclosure: The complete drive chassis is fully enclosed in a precision-formed cold-rolled steel outer casing, protecting internal mechanical components from dust ingress while maintaining a safe, aesthetic, and pristine laboratory working environment.
- Integrated Anti-Vibration Base Damping: Fitted with heavy-duty rubber vibration-damping mounts beneath the chassis, the unit effectively suppresses structural vibrations and operational acoustic noise, ensuring smooth, stable rotation even under full loading capacity.
- Flexible & Customizable Jar Options: Accommodates multiple grinding barrel diameters including 108 mm, 127 mm, 133 mm, and 146 mm, corresponding to volumetric capacities of 1.0 L, 1.65 L, 1.9 L, and 2.6 L, with custom sizing available to suit specialized sample volume requirements.
- Precision Dual-Speed Roller Kinematics: Operating with 127 mm diameter support rollers driven at rotational speeds of 140 r/min and 160 r/min, the machine ensures optimal momentum transfer for efficient energy distribution and uniform particle size reduction.
- Wide Material Applicability: Purpose-built to handle diverse raw materials ranging from hard non-metallic ores and metallic minerals to abrasive coal and industrial coke, offering exceptional versatility for multi-disciplinary analytical facilities.
- Ergonomic Design & Clean Operation: Designed with user ergonomics in mind, the compact structural footprint allows fast loading, simple barrel removal, easy cleanout between runs, and straightforward routine maintenance.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Geological & Ore Exploration | Pulverizing core samples, gold ores, manganese ores, and lead-tin deposits down to micro-fine powders prior to chemical assaying and instrument analysis. | High batch capacity processes up to 16 samples simultaneously, accelerating exploration analysis cycles and reducing sample handling bottlenecks. |
| Coal & Metallurgical Coke Testing | Fine grinding of raw coal, washed coal, and industrial coke samples to 180–400 mesh for proximate analysis, calorific value determination, and moisture/ash content testing. | Fully enclosed cold-rolled steel casing prevents fine coal dust escape, maintaining laboratory hygiene and preventing cross-sample contamination. |
| Non-Metallic Mineral & Cement Quality Control | Processing limestone, gangue, quartz, and industrial mineral raw materials into homogeneous powders for elemental and phase composition analysis. | Consistent tumbling friction action yields tight particle size distribution, ensuring high accuracy and repeatability in downstream XRF and XRD measurements. |
| Chemical & Materials R&D | Preparing synthetic mineral mixtures, catalysts, technical ceramics, and raw powder formulations in industrial research laboratories. | Interchangeable barrel sizes (1.0 L to 2.6 L) allow flexible scaling between exploratory sample sizes and standard laboratory testing volumes. |
| Metallurgical Processing & Assay | Pulverizing iron ores, flux materials, furnace slag, and alloy additives for wet chemical titration and spectrographic verification. | Heavy-duty rod collision mechanisms break down dense, high-hardness metallic minerals efficiently without mechanical stalling. |
| Academic & Scientific Research | Preparing geological and mineralogical test samples in university laboratories and government research centers. | Stable rubber-damped base reduces laboratory noise levels, providing quiet, continuous operation during multi-hour analytical grinding runs. |
Technical Specifications
The series specifications and technical performance metrics for model PP-RM05 are summarized in the tables below:
General Technical Specifications
| Parameter | Specification Details |
|---|---|
| Model Code | PP-RM05 |
| Grinding Mechanism | Sealed Tumbling Rod Mill (Steel Rod Impact, Collision, Friction) |
| Roller Configuration | 4 Support Rollers |
| Barrel Capacity | 16 Barrels Simultaneously |
| Support Roller Diameter | Φ 127 mm |
| Roller Rotational Speed | 140 r/min, 160 r/min |
| Feed Granularity | ≤ 2 mm |
| Discharge Granularity | 180 – 400 mesh (standard fine analytical powder; adjustable 80 – 200 mesh) |
| Motor Power | 2.2 kW |
| Housing Construction | High-grade Cold-Rolled Steel Sheet Enclosure |
| Vibration Control | Base-mounted Rubber Anti-Vibration Damping Mounts |
| Overall Dimensions (L × W × H) | 1760 mm × 1060 mm × 1250 mm |
| Equipment Weight | 570 kg |
Compatible Barrel Variants (PP-RM05 Series)
| Variant Identifier | Barrel Outer Diameter | Standard Barrel Volume | Recommended Material Types |
|---|---|---|---|
| PP-RM05-108 | Φ 108 mm | 1.00 L | Small-volume high-value ores, precision analytical samples |
| PP-RM05-127 | Φ 127 mm | 1.65 L | Standard geological specimens, mineral concentrates |
| PP-RM05-133 | Φ 133 mm | 1.90 L | Medium-batch industrial minerals, limestone, coal |
| PP-RM05-146 | Φ 146 mm | 2.60 L | Large-volume batch preparation, gangue, heavy ores |
| PP-RM05-CUST | Custom Specifications | Custom Volumes | Custom-engineered barrel dimensions upon request |
Operating Environment & Material Compatibility
| Property | Details |
|---|---|
| Target Materials | Gold ore, manganese ore, lead-tin ore, limestone, coal, coke, gangue, hard non-metallic minerals |
| Grinding Media | Precision Steel Rods |
| Enclosure Function | Sealing against dust release, aesthetic protection, noise reduction |
| Structural Stability | Vibration suppression blocks eliminate operation instability |
| Maintenance Features | Rational layout, compact footprint, straightforward cleaning and maintenance |
Why Choose This Product
- Proven Multi-Sample Efficiency: Engineered to drive sixteen grinding barrels simultaneously on four precision rollers, this unit optimizes analytical throughput while maintaining uniform grinding parameters across all samples.
- Superior Fine Pulverization Quality: The combination of heavy internal steel rods and dual-speed roller kinematics (140/160 r/min) guarantees rapid particle size reduction from ≤2 mm feed down to 180–400 mesh powder, perfect for modern analytical instrumentation.
- Heavy-Duty Construction & Low Noise: Built with an enclosed cold-rolled steel body and integrated rubber damping mounts, the equipment dampens operational vibration and noise while delivering long-term structural durability under continuous daily operation.
- Comprehensive Customization Capabilities: With barrel diameters ranging from Φ108 mm to Φ146 mm and volumes from 1.0 L to 2.6 L—plus custom manufacturing options—the platform adapts seamlessly to your laboratory's precise workflow requirements.
- Ergonomic & Clean Laboratory Integration: Compact spatial dimensions, sealed anti-dust design, and accessible component layouts ensure effortless sample recovery, rapid barrel cleaning, and simplified preventative maintenance.
Contact our technical sales team today to request a competitive quotation or discuss customized grinding barrel configurations tailored to your laboratory's material testing requirements.
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