Hangzhou Jingjing Testing Instrument Co., Ltd.

Wholesale MPD‑2S Semi-automatic Dual-disc Metallographic Grinding and Polishing Machine Suppliers

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MPD‑2S Semi-automatic Dual-disc Metallographic Grinding and Polishing Machine

Product parameters:

The MPD-2S is a dual-disc, semi-automatic metallographic grinding and polishing machine. Its dual-station design supports simultaneous operation by two users, significantly boosting sample preparation efficiency. It is primarily used for the pre-grinding, fine grinding, and polishing of various metal metallographic samples, producing flat, damage-free surfaces suitable for subsequent metallographic observation and analysis.
The main unit is powered by a 750W motor equipped with a variable frequency drive (VFD) for stepless speed control. The grinding/polishing discs operate within a speed range of 0–1500 rpm and support both clockwise and counter-clockwise rotation, allowing for flexible speed adjustments based on abrasive grit size and sample material. It is paired with an MPT semi-automatic grinding/polishing head (400W power, 10–120 rpm rotation speed) that utilizes a spiral pressurization mechanism. Pressure at the single station can be precisely adjusted between 0 and 40N, and the unit can hold 1–3 samples at a time, enabling simultaneous grinding and polishing. This minimizes surface variations caused by manual handling and ensures greater consistency in sample preparation.

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The machine features an integrated circulating cooling water system that continuously rinses and cools the samples during processing, effectively dissipating grinding heat to prevent thermal damage and preserve the material's original microstructure. It operates on a 220V/50Hz power supply, measures 710mm × 600mm × 270mm, and weighs 63kg; the robust structure ensures stable operation with minimal vibration. The standard polishing disc diameter is Φ230mm, with an optional Φ203mm disc available upon request.
The semi-automatic spiral pressurization design combines the flexibility of manual operation with reduced physical strain, offering ease of use alongside reliable, durable performance. It is an ideal pre-processing solution for metallographic sample preparation in corporate quality control laboratories, research institutes, and university laboratories.

Parameter Item MPD-1S (Single Disc) MPD-2S (Dual Disc)
Core Features Semi-automatic, screw pressurization, stepless speed regulation, forward & reverse rotation Semi-automatic, screw pressurization, stepless speed regulation, forward & reverse rotation
Polishing Disc Diameter φ230mm (203mm optional) φ230mm (203mm optional)
Rotating Speed 0-1500 rpm 0-1500 rpm
Working Voltage 220V 50Hz 220V 50Hz
Motor Specification Main motor: 750W, grinding head motor: 400W Main motor: 750W, grinding head motor: 400W
Overall Dimensions 400mm×600mm×270mm 710mm×600mm×270mm
Net Weight 45kg 63kg

Power Supply 220V 50Hz (refer to the input voltage nameplate on the device)
Operating Rotating Speed 10-120 r/min
Force Applied on Each Specimen 0~40N
Quantity of Specimens Prepared in One Batch 1-3 pcs
Net Weight 15kg

About Us
Hangzhou Jingjing Testing Instrument Co., Ltd.
Hangzhou Jingjing Testing Instrument Co., Ltd.
Hangzhou Jingjing Testing Instrument Co., Ltd. is China MPD‑2S Semi-automatic Dual-disc Metallographic Grinding and Polishing Machine Suppliers and Wholesale MPD‑2S Semi-automatic Dual-disc Metallographic Grinding and Polishing Machine Factory. It is a comprehensive enterprise specializing in the production, R&D, sales, maintenance, and metrological management of hardness testers, tensile testing machines, metallographic microscopes, and metallographic sample preparation equipment. The company employs a team of highly regarded engineers and service professionals within the domestic industry, many of whom have contributed to technical development projects and collaborations with well-known instrument manufacturers across China. Thanks to our consistent product quality and high cost-effectiveness, we have established a distributor network covering the Pearl River Delta, Yangtze River Delta, Central China, East China, and North China regions. This extensive network enables us to provide comprehensive after-sales support to our customers. Furthermore, we serve as an authorized agent and distributor for numerous internationally and domestically renowned testing equipment brands. With a product range of over a thousand items, we play a key role in supporting quality management systems and delivering integrated hardware solutions for enterprise certification needs. Our product portfolio includes dimensional metrology, mechanical testing, electrical testing, optical instruments, non-destructive testing, educational instruments, precision instruments, specialized measurement tools, and environmental testing equipment. Guided by our corporate philosophy of "Sustainable Development," we consistently uphold the business principle of:"Better price for equal quality; better service for equal price." This commitment has garnered widespread recognition and strong support from our customers. Our team is dedicated to serving each client with sincerity, enthusiasm, attention and professionalism, delivering end-to-end support through pre-sales technical consulting, in-sales technical training, and after-sales technical support. Integrity fuels our development and strength builds our brand. We are continuously striving to enhance our product offerings and deliver professional service, partnering with our customers to build a bright future together. We sincerely look forward to establishing long-term collaborations with both new and existing clients. We welcome your inquiries and are eager to explore opportunities for cooperation!
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