GQM-2-15 laboratory jar mill

GQM-2-15 Laboratory Jar Mill

Model: GQM-2-15

Application: Laboratory / Small batch production / Ultra-fine grinding & mixing

Product Overview

The GQM-2-15 Laboratory Jar Mill (also known as a roller mill or ball mill) is designed for ultra-fine grinding, mixing, and small-batch production in laboratory settings. Featuring stainless steel jars, an advanced variable frequency drive (VFD) , and an emergency stop button, this compact and user-friendly unit is widely used in electronics, magnetic materials, biomedicine, ceramic glazes, metal powders, non-metallic minerals, and advanced material research.

Key Features

1. High Efficiency & Uniform Particle Size

Materials and grinding media inside the jar are lifted to a certain height by rotation and then fall in a parabolic trajectory. Impact, rolling, friction, and shear forces ensure efficient grinding with excellent uniformity.

2. Variable Frequency Drive (VFD)

The built-in VFD allows real-time speed adjustment between 40 – 365 rpm based on material characteristics and process requirements. Ideal for both dry and wet grinding.

3. Emergency Stop Switch

A prominently placed emergency stop button provides instant power cut-off for operator and equipment safety in case of any abnormal condition.

4. Dual-Jar Design

Two stainless steel jars can be operated simultaneously. Maximum load per jar: 80 kg, significantly improving laboratory productivity.

5. Durable & Low Maintenance

Heavy-duty steel frame with chrome-plated or rubber-coated rollers ensures stable, quiet operation. Stainless steel jars are hard, corrosion-resistant, and non-contaminating, meeting stringent material preparation standards.

Working Principle

The GQM-2-15 lab jar mill uses a “cascade and impact” grinding mechanism. The motor rotates the rollers via a gear reducer, which in turn rotates the grinding jars. Grinding balls (e.g., zirconia or agate balls) inside the jar are carried upward by friction and then cascade down, repeatedly impacting and shearing the material to achieve micron or even nano-scale fineness.

Technical Specifications

Parameter Specification

Model GQM-2-15

Number of Stations 2

Main Motor Power 1.1 kW (optional 1.5 kW)

VFD Power 1.5 kW

Roller Speed Range 40 – 365 rpm (adjustable)

Max. Load per Jar 80 kg

Compatible Jar Volume 10L – 15L

Roller Effective Length Approx. 740 – 762 mm

Dimensions (L×W×H) 1130 × 550 × 690 mm

Weight Approx. 80 – 130 kg

Power Supply 220V / 50Hz

Applications

• Universities & Research Institutes – New material development and formula testing

• Electronics & Magnetic Materials – Grinding electrode materials, magnetic powders

• Biomedicine & Pharmaceuticals – Fine grinding of herbal or pharmaceutical ingredients

•  Geology & Metallurgy – Ore sample crushing and analysis

•  Ceramics & Chemicals – Ultra-fine dispersion of glazes, pigments, and coatings

Standard Configuration

Main unit – GQM-2-15 laboratory Jar Mill

Control system – Variable frequency drive with digital display (timing & cumulative time functions)

Safety component – Emergency stop switch

Grinding jars – Stainless steel jars (optional based on customer requirements)

Grinding media – Grinding balls (optional)

GQM-2-15 Laboratory roll mill – Simple FAQs

1. How many jars can the GQM-2-15 hold at once?

Answer: It can hold 2 jars at the same time.

2. What is the maximum load per jar?

Answer: The maximum load per jar is 80 kg (including material and grinding balls).

3. Can I adjust the rotation speed?

Answer: Yes. The built-in variable frequency drive (VFD) allows you to adjust the speed from 40 to 365 rpm.

4. Can it be used for wet grinding?

Answer: Yes. It supports both dry grinding and wet grinding.

5. Is the machine easy to operate?

Answer: Yes. It has a simple digital control panel. You just set the speed and time, then press start.

6. What types of jars can I use?

Answer: You can use stainless steel jars (standard), alumina jars, nylon jars, polyurethane jars, etc.

7. What is the emergency stop button for?

Answer: It instantly cuts off power in case of an emergency, ensuring operator and equipment safety.

8. Does the machine require a lot of maintenance?

Answer: No. Just keep the rollers clean, check the bearings occasionally, and ensure electrical parts are dry.

9. What should I do if the machine stops suddenly?

Answer: Press the emergency stop button, check if the jar is properly placed, and contact technical support if needed.