Dual Disc Timing Control Metallographic Polishing Machine

If you need stable, repeatable metallographic sample grinding and polishing results in daily lab work, our timed metallographic polishing units ranging from manual MP series to automatic LMP series will fit your needs perfectly. We supply 7 practical models including MP-1S, MP-2S, LMP-3, LMP-3S, LMP-3HS, LMP-4 and LMP-4S, all built with touch timing function, adjustable rotating speed and bidirectional disc rotation. Custom working plate sizes are available to match your actual specimen processing demands.

Many lab technicians often run into the same trouble: different operators spend inconsistent time on polishing steps, leading to uneven sample surface finish and inconsistent test data across batches. Our dual disc timing control metallographic polishing machine solves this real pain point by letting you set precise working time, rotating speed and running direction in advance via the LCD touch panel. Once parameters are saved, every specimen group will receive identical processing, which greatly cuts down human error in daily quality inspection and material research work.

We split these seven models into two practical categories according to how users usually operate metallographic testing equipment. MP-1S and MP-2S belong to manual bench polishing units, designed for small to medium sample batches, limited lab bench space and teams with relatively tight equipment budgets.

The LMP lineup are fully automatic machines fitted with pneumatic pressure loading, multi-specimen clamping fixtures and extended timing ranges, most often chosen by third-party testing institutes, university material research labs and large manufacturing enterprises that need to process dozens of samples each working day.

Every machine in this series comes with a built-in circulating water pipeline system. During high-speed grinding and polishing, running water continuously cools heated sample surfaces and washes away tiny abrasive particles. This practical design prevents thermal damage to the internal metallographic structure of test pieces, as well as uneven surface abrasion that often occurs when polishing soft alloys and thin precision parts for a long time. All working plates support custom diameters, and the one-piece fiberglass casing offers strong resistance against water splash, dust and frequent collision in busy lab environments.

1. MP-1S | Single Disc Touch Timing Manual Metallographic Polisher

This compact single-disc timing control metallographic polishing machine adopts LCD touch screen operation, supporting 50–1000rpm stepless speed regulation together with four preset fixed rotational speeds. Operators can store commonly used process parameters to ensure unified polishing effects for routine inspection samples. The high-strength fiberglass integrated shell offers reliable wear resistance, making it widely selected by small manufacturing factories and teaching laboratories for conventional metallographic pretreatment work.

2. MP-2S | Dual Disc Single-Control Timing Manual Metallographic Polisher

As the dual-workbench upgraded version of MP-1S, this model retains the same touch timing speed control system and adds bidirectional disc rotation function. Two working discs run synchronously under centralized control, enabling parallel rough grinding and fine polishing to shorten sample processing cycles significantly. Its sturdy fiberglass casing adapts to high-frequency daily testing tasks in medium-sized quality inspection laboratories.

3. LMP-3 | Single Disc Automatic Timing Metallographic Grinding & Polishing Machine

Equipped with an automatic grinding head and precise timing control ranging from 0 to 3000 seconds, this single-disc automatic polisher supports pneumatic pressure loading and holds up to 4 specimens in one clamping cycle. Users can set rotational speed, polishing duration and loading pressure via the LCD panel, effectively standardizing sample preparation procedures. It is widely used in material research laboratories with medium batch testing demands.

4. LMP-3S | Dual Disc Automatic Timing Metallographic Polishing Machine

This dual-disc automatic model adopts single centralized control for two working platens, with the same timing and speed control system as LMP-3. It can clamp up to 6 specimens per batch, paired with bidirectional disc rotation and adjustable pneumatic loading range, greatly improving daily testing throughput for third-party material certification institutions and large enterprise QC departments.

5. LMP-3HS | Dual Disc Manual Pressure Timing Automatic Metallographic Polisher

Designed with manual single-point pressure regulation without an electronic proportional valve, this dual-disc timed polisher reserves complete timing, multi-speed and bidirectional rotation functions. It features a cast aluminum base for stable low-vibration operation, and stainless steel structural accessories with anti-corrosion and easy-to-clean properties, perfectly matching heavy-duty continuous metallographic testing work in industrial production lines.

6. LMP-4 | Single Disc Central & Single-Point Pressure Timing Automatic Polisher

Integrating central force and independent single-point pneumatic loading modes, this high-precision timed metallographic polisher allows separate pressure parameter setting for each specimen. The touch timing panel supports stepless speed adjustment and three preset fixed speeds, ideal for new material R&D laboratories requiring diverse specimen processing standards and strict test traceability.

7. LMP-4S | Dual Disc Dual-Pressure Timing Automatic Metallographic Polisher

The top-tier dual-disc model in our LMP series combines central clamping and individual single-point loading functions with programmable timing control. Two working discs operate under unified parameter settings, capable of processing 6 specimens per batch with adjustable polishing head speed and bidirectional rotation. It is the preferred equipment for authoritative testing institutions and university metallurgy labs pursuing fully standardized sample preparation workflows.

1.Quality inspection and failure cause analysis for automotive parts, aerospace components and mechanical hardware
2.Material science experiment teaching and metallurgy research in vocational colleges and universities
3.Third-party material performance testing, product certification and official authoritative inspection services
4.Microstructure research for new energy components, semiconductor devices and composite structural materials
5.Metallographic structure detection for molds, bearings and various welding joints

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