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LBTP-2A Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine (6 samples, stepless speed control) – an all-in-one unit for pre-grinding, grinding, and polishing metallographic specimens.

Name: LBTP-2A Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine (6 samples, stepless speed control) – an all-in-one unit for pre-grinding, grinding, and polishing metallographic specimens.
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

The LBTP-2A touchscreen dual‑disc automatic metallographic sample grinding and polishing machine is a fully automated, dual‑disc unit that integrates preliminary grinding, fine grinding, and polishing into a single process.

Category:

Metallographic Sample Grinding and Polishing Machine

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E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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LBTP-2A Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine (6 samples, stepless speed control) – an all-in-one unit for pre-grinding, grinding, and polishing metallographic specimens.

Description

Product Introduction:

The LBTP-2A touchscreen‑controlled, dual‑disc automatic metallographic sample grinding and polishing machine is a fully automated, dual‑disc unit that integrates pre‑grinding, grinding, and polishing into a single process. It employs microcontroller technology with touch‑screen operation; the grinding and polishing discs are driven by DC brushless motors via V‑belts, while the grinding head is powered by a stepper motor with synchronous belt drive, ensuring smooth rotation and low noise. Users can independently adjust the rotational speeds of both the grinding head and the discs, set the applied pressure, and program custom sample‑preparation times to meet diverse requirements. The machine features an integrated illumination system for convenient sample handling and a built-in cooling unit that cools samples during grinding, preventing overheating and preserving the metallographic structure. It is an ideal choice for metallographic sample preparation in industrial settings, research institutions, and university laboratories.

Product Features:

1. The base is integrally cast from aluminum alloy, offering lightweight construction, excellent shock absorption, and superior corrosion resistance.
2. The housing is integrally molded via ABS thermoforming, featuring a modern appearance and excellent corrosion resistance.
3. The faucet is crafted from solid brass with a chrome-plated finish, offering excellent corrosion resistance.
4. Equipped with a touch-screen control and display, offering simple operation and clear, intuitive visualization.
5. One-touch automatic start function: After placing the sample on the holder, simply press Start; the indenter will automatically descend, the grinding head and grinding disc will run automatically, and the water tap will dispense water. Once grinding and polishing are complete, the water tap will shut off automatically.
6. Features programmable timing, speed, and pressure settings.
7. Built-in nozzle with automatic cleaning of the debris collection tray
8. Supports stepless speed control or four-speed adjustment modes, making speed regulation more convenient.
9. Supports both single‑step and linked start modes, offering greater flexibility in operation.
10. It can store more than ten sets of grinding and polishing process parameters, enabling quick retrieval.
11. Magnetic disc design supports quick disc changes, making it easier and faster to swap sandpaper and polishing cloths.
12. The specimen holder automatically releases and clamps, and when combined with the internal illumination system, it facilitates easy specimen loading and unloading.
13. Equipped with a quick‑change specimen‑clamping disc, allowing for the easy replacement of clamping discs of different diameters at any time.
14. Dual‑plate, dual‑control operation offers greater flexibility, significantly enhancing sample preparation efficiency.
15. The entire machine employs brushless DC and stepper motors, ensuring smooth operation, low noise, and long service life.
16. The emergency stop button allows for quick and convenient immediate cessation of operation.
17. Dual-disc design for enhanced sample preparation efficiency.

Technical Specifications:

Product model	LBTP-2A Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine
Number of millstones	2
Polishing disc diameter	254mm
Polishing disc rotational speed	Stepless speed regulation, 100–1000 r/min Four-speed adjustment: 300, 500, 800, 1000 r/min
Rotational direction of the polishing pad	Bidirectional forward and reverse rotation
Grinding disc motor power	2.2 kW brushless DC motor
Polishing and Grinding Disc Control	Dual-disc, dual-control
Spindle rotation direction	Clockwise
Grinding head rotational speed	0–120 r/min
Grinding head motor	Stepper motor 200W
Grinding head locking method	Manual (optional automatic)
Adjustable timer duration	0-99min
Pressurization method	Single-point pneumatic pressurization
Pressurization pressure	0–0.5 MPa (commonly 0.2–0.3 MPa)
Number of specimen clamps	6 pieces
Specimen clamping thickness	8–22 mm (customizable)
Specimen clamping specifications	Standard configuration: Φ30; (Φ22, Φ30, or Φ45—any of these specifications is optional; custom specifications available upon request)
Power supply	220V 50Hz
External dimensions	755660710mm
Weight	100kg

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

Which materials can be measured by your Vicat softening point tester?

It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.

Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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Keywords:

LBTP-2A Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine (6 samples, stepless speed control) – an all-in-one unit for pre-grinding, grinding, and polishing metallographic specimens.

LBTP-1B Touchscreen Automatic Metallographic Sample Grinding and Polishing Machine (6 samples, pneumatic pressure application, stepless speed control)

LBTP-2C Touchscreen Dual-Disc Automatic Metallographic Sample Grinding and Polishing Machine (4 samples, stepless speed control) – an all-in-one unit for pre-grinding, grinding, and polishing metallographic specimens.