LSM-1L Laboratory Pin Sand Mill

Basic Requirements: 1. Each unit can grind and disperse 2-10L of slurry per batch without introducing any impurities during the grinding process. 2. The equipment must be a split-type structure, simple and convenient to operate, and quick and easy to maintain. 3. The equipment must be rationally designed, stable and reliable, and have a noise level of less than 65dB.

Equipment Applications

For wet ultrafine grinding and dispersion of slurries.

Basic Requirements

1. Each unit can grind and disperse 2-10L of slurry per batch, without introducing any impurities during the grinding process.

2. The equipment features a split-type structure, making operation simple and convenient, and maintenance quick and easy.

3. The equipment is rationally designed, stable, and reliable, with a noise level of less than 65dB.

Equipment Features

1. It utilizes a double-face water-cooled mechanical seal for excellent sealing, preventing water and material leakage.

2. The material is conveyed by suction, replacing the traditional pressurized conveying method. This reduces the pressure within the grinding chamber, significantly improving the operational stability and service life of the mechanical seal, and also preventing slurry clogging at the filter port.

3. The grinding chamber is lined with zirconia ceramic components, which offer excellent wear resistance and a large filtration area, preventing slurry clogging.

4. It provides high grinding efficiency and a narrow and fine particle size distribution.

5. It requires minimal grinding media and achieves high throughput. Technical Parameters

1. Main Unit Power: 2.2 kW Motor

2. Mill Speed: 0-2500 rpm (Variable Frequency Drive)

3. Circulation Pump Flow: 1500 liters/hour

4. Processing Capacity: ≥10 liters

5. Grinding Media: 0.1-0.2 mm Zirconia Beads

6. Grinding Fineness: D50 < 50 nm

Main Component Technical Description

(I) Ultrafine Mill Main Unit

The ultrafine mill main unit has dimensions of 790 x 700 x 1200 mm and weighs 220 kg. It is constructed of folded A3 steel plate and reinforced with steel sections. Shock-absorbing pads are installed on all four contact points to ensure smooth, vibration-free mill operation. (2) Mill Main Case

The mill main case is cast from HT200 material and precision-machined through turning, boring, grinding, and drilling. The main shaft is made from 2Cr13 material and is tempered, precision-turned, and ground. The bearings are SKF bearings.

(3) Mechanical Seal

The mechanical seal is carefully designed by our company based on this model. It utilizes a double-face mechanical seal made of carbide, with inner and outer sleeves made of 304 stainless steel and equipped with a cooling system. (4) Ultrafine Grinding Chamber

The ultrafine grinding chamber is constructed from a combination of wear-resistant materials. The outer layer is made of 304 stainless steel, which is polished and equipped with a cooling system. The inner lining is made of silicon carbide ceramic grinding wall. The agitator rotor is a pin-type rotor made of zirconium oxide (99.5% purity, 6.0 density, and 1000-1200 MPa strength). The dispersing disc and main shaft are sealed with O-rings. The grinding chamber and main housing are connected by flanges and mechanical seals. All other seals are sealed with O-rings. The flanges are drilled with process holes for easy disassembly.

(5) Mechanical Seal Coolant Tank

The mechanical seal coolant tank consists of a double-layer barrel, a barrel cover, and a coolant pump. Made of 304 stainless steel with a polished surface, it has a coolant capacity of 10 liters. The barrel is equipped with cooling water and a level switch to ensure the safe operation of the mechanical seal. (6) Grinding Mill Drive Motor

A Y2 series three-phase asynchronous motor with a power of 2.2 kW (from Anhui Wannan Motor), four motor stages, a voltage of 380 volts, and a frequency of 50 Hz, is used. The inverter is from Wuxi Actor.

(7) Mixing Tank

The inner and outer walls of the mixing tank are polished for easy cleaning. The mixing tank has a capacity of 10 liters and is equipped with an air motor on the upper portion. The base is polished and has a 304 stainless steel base. The agitator uses an anchor type agitator with a PTFE scraper to prevent the tank from sticking. The tank opening is equipped with two removable covers for easy loading and cleaning. The lid is made of 304 stainless steel, and the tank bracket is also made of stainless steel. (VIII) Circulation pump

The circulation pump can be an electric or pneumatic diaphragm pump, interface: 0.5 inches, flow rate: 1500 liters/hour, material: 304 stainless steel

(IX) Electrical control cabinet

Material of electrical control cabinet: All electrical boxes and electrical appliances are made of domestic high-quality brand products, electronic control.

(X) Frequency converter

Use Danfoss and Holip frequency converters, with an adaptable power of 2.2kw, to control the main shaft speed of the mill.

Installation

1. The equipment is shipped as a complete unit, and installation is convenient and simple.

2. The equipment can be installed on any horizontal ground with a cement foundation, without the need for anchor bolts, but the circulation pump anchor needs to be fixed with expansion screws.

3. Water, electricity, and other public facilities supporting projects: (1) Cooling water and tap water for cooling the slurry of the equipment (2) Power supply: 2.2kw.

Commissioning

1. After receiving the equipment, the purchaser should notify the supplier that the equipment has been received and inform the supplier of the purchaser's preparations. 2. Upon receiving the equipment commissioning notification from the purchaser, the supplier shall immediately dispatch experienced and qualified technicians to the purchaser to provide free commissioning guidance.

After-Sales Service Commitment

1. The entire machine is designed with a user-centric approach, ensuring ease of operation and maintenance.

2. The equipment is manufactured in strict accordance with relevant national standards. All ordinary steel is made of national standard steel, stainless steel is SUS304 stainless steel, and all stainless steel pipes and valves are food-grade SUS304 stainless steel.

3. All supporting machinery comes with comprehensive after-sales service, including a "three guarantees" guarantee: a one-year warranty and lifetime maintenance beyond the warranty period.

4. All major electrical components and parts are domestically produced, ensuring high quality, sensitivity, and reliability.

5. For equipment failures caused by the supplier, the supplier will provide unconditional free repairs. For equipment failures caused by the purchaser, a labor and material fee will be charged.

6. When the purchaser requires service, the supplier will arrive within 24 hours (depending on the distance). 7. If you require spare parts, we'll ship them within 6 hours.

8. If you require technical support, we'll respond within 2 hours.

9. Long-term discounts on spare parts.

Technical Parameters and Configurations