QGZ-120/200/300 PLC-Controlled Metallographic Cutters | 3-Axis Automation for Large Samples (CE/ISO)

‌QGZ Series: Precision Cutting for Labs That Demand Industrial-Grade Power‌‌

The ‌QGZ-120, QGZ-200, and QGZ-300‌ are built for labs, factories, and research centers that need to cut ‌large, tough samples‌ (steel, titanium, ceramics) with ‌microscopic accuracy‌. Whether you’re prepping engine blocks for failure analysis or slicing rock cores for geology studies, these machines deliver ‌PLC-controlled automation‌, three-axis precision (±0.02mm), and ‌zero compromise on safety‌.

‌Key Benefits :‌

• ‌3 Models, 1 Solution‌: Choose capacity (120mm to 300mm) based on your lab’s needs.
• ‌Smart Cutting‌: Adjusts feed speed (3-12mm/min) and cutting mode (swing/continuous) based on material hardness.
• ‌Lab-Safe Design‌: Sealed cutting chamber, explosion-proof window, and auto-fume extraction.
• ‌Easy to Use‌: 10-inch touchscreen + ergonomic handle wheel for seamless manual/auto switching.
• ‌Built to Last‌: Direct-drive motors reduce noise and maintenance by 40%.

Technical Specs Table (Keyword-Rich)‌

‌Parameter‌	‌QGZ-120‌	‌QGZ-200‌	‌QGZ-300‌
‌Max Cutting Size‌	120×120mm	200×150mm	300×150mm
‌Motor Power‌	5.5kW (500-2800 RPM)	7.5kW (500-2800 RPM)	7.5kW (500-2800 RPM)
‌Work Table‌	450×350mm	485×400mm	530×630mm
‌Travel (X/Y/Z)‌	100/250/200mm	100/300/230mm	110/420/230mm
‌Cooling Tank‌	120L + magnetic filtration	120L + magnetic filtration	120L + magnetic filtration
‌Weight‌	1800kg	2200kg	2500kg
‌Best For‌	Small workshops	Automotive/aerospace	Heavy machinery/mining

QGZ-120/200/300 Automatic Cutting Machine is a PLC controlled automatic metallographic sample cutting machine, with X, Y, Z directions automatically and precisely controlled. With intelligent cutting, the amount of feed can be adjusted depending on the material’s hardness to achieve the fastest cutting effect. Cutting speed is frequency conversion controlled, which has very high reliability and control ability. Features: (1) Free conversion between electronic hand wheel and automatic control. (2) The touch screen displays various cutting data. (3) Precise positioning. (4) Swing cutting and continuous cutting two cutting ways, according to the material’s hardness, it can change the cutting speed to achieve the fast cutting effect. In order to make the cutting room easy to clean and ensure the safety of spindle motor, we adopt mechanical and electrical separation. There is a large observation window on the cutting room security cover, makes the user easy to observe the entire process of cutting samples. Installed LED lights in the cutting room, it achieves effective lighting for the entire area of the cutting room. The indoor ventilation fan can ensure the efficient flow discharge of various steam and smoke caused by the cutting and increases the indoor brightness and clarity. The design is more humane, using the principles of ergonomics. The machine with low noise, easy to operate, beautiful appearance, safe to use, therefore it is one of the ideal equipment for laboratory sample preparation.

The body form: vertical. Mainly composed of upper (safety cover), middle (frame), right sliding door, side door, the lower frame (electrical box, tool box), fixture, rinsing tap, cooling water tank (independent).

It adopts frequency conversion motor, direct cutting disc, stepless speed regulation, concise design and solid structure. The direct driving provides the transmission between the motor and the cutting disc, and ensures the high efficiency, low noise, less maintenance and longer service life.

Design of special cutting for large workpieces, it makes the maintenance of machine parts and processing of large workpieces easier. Sliding door and hinged door makes you have more space and unlimited access, more convenient for you to place the large workpiece in the right position. You can put the workpiece into the cutting room from three directions (up, front and left).

The work area adopts totally enclosed structure and a transparent protective cover for the observation of cutting. Equipped with a cooling water tank for storing cooling liquid, do avoid using tap water as cooling liquid. After the cutting work is finished, use the left rinsing tap to rinse the indoor garbage and then close the safety door.


Main Parameters:

Model	QGZ-120	QGZ-200	QGZ-300
Control Mode	Manual / Automatic, three axis linkage, 10 inch touch screen control, Can be switched to the operating handle wheel
Feature	Automatic drain system, alarm system, double LED lighting, red laser positioning
Feeding Speed	3mm/min, 5mm/min, 8mm/min, 12mm/min (users may modify the set speed according to requirement)
Cutting Disc Size	Φ380×2.8×Φ32 mm	Φ400×3×Φ32 mm		Φ400×3×Φ32 mm
Work Table Dimension (X*Y)	450×350 mm	485×400 mm		530×630 mm
Y axis Maximum Travel Distance	250 mm	300 mm		420 mm
X axis Maximum Travel Distance	100 mm	100 mm		110 mm
Z axis Maximum Travel Distance	200 mm	230 mm		230 mm
Max. Cutting  Section	120×120 mm	200×150 mm		300×150 mm
Fixture Caliber	120 mm	200mm		300 mm
Frequency Conversion Motor	5.5kw, Rotating speed: 500-2800 r/min	7.5kw, Rotating speed: 500-2800 r/min		7.5kw, Rotating speed: 500-2800 r/min
Feeding Motor	Servo motor	Servo motor		Servo motor
Volume of the Water Tank	120L	120L		120L
Dimensions	1450×1000×1850mm	1550×1100×1900mm		1650×1350×1900mm
Weight	1800kg	2200kg		2500kg