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LBT-2PB Touchscreen Semi-Automatic Metallographic Sample Grinding and Polishing Machine (Dual‑Disc, 4 Specimens, Mechanically Pressurized, Stepless Speed Regulation)

In the preparation of metallographic specimens, grinding and polishing are indispensable steps; after these processes, the specimen attains a mirror‑like, highly polished surface.

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Metallographic Sample Grinding and Polishing Machine

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lbt@lbt.ltd

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+86-15102211717

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LBT-2PB Touchscreen Semi-Automatic Metallographic Sample Grinding and Polishing Machine (Dual‑Disc, 4 Specimens, Mechanically Pressurized, Stepless Speed Regulation)

Description

Product Introduction:

In the preparation of metallographic specimens, grinding and polishing are indispensable steps; after these processes, the specimen achieves a mirror‑like, highly polished surface. The LBT‑2PB semi‑automatic metallographic grinder‑polisher (with mechanical pressure applied to four specimens) features a touch screen and an electrically driven grinding/polishing head, enabling simultaneous grinding and polishing of up to four samples at once. It offers smooth rotation, hands‑free operation, low noise, user‑friendly controls, and high productivity. The polishing disc speed is continuously adjustable between 50 and 1,000 r/min, and by switching between metallographic abrasive papers and polishing cloths, both grinding and polishing can be performed, ensuring broad versatility. The base housing is integrally molded, presenting a modern aesthetic, and includes a built-in cooling system that cools the specimen during grinding and polishing, thereby preventing overheating and potential damage to the microstructure. This equipment is ideally suited for metallographic laboratories in industrial settings, colleges, and research institutions, making it the perfect choice for specimen preparation.

Product Features:

1. The housing is integrally molded from ABS.
2. The faucet is made of 304 stainless steel, ensuring long-lasting durability and excellent corrosion resistance.
3. Touchscreen display control, with a clear and intuitive interface and simple operation.
4. Equipped with an automatic cleaning function, it can automatically clean the sludge collection tank, keeping it consistently clean (optional).
5. Stepless speed control with eight fixed-speed settings, offering convenience and speed to meet a variety of needs.
6. Sample pressurization requires no air supply; it employs elastic loading with adjustable pressure.
7. Countdown function: set the time arbitrarily, and the machine will stop when the time is up.
8. The polishing disc can rotate clockwise or counterclockwise to meet different requirements.

9. The polishing disc and the grinding head can operate independently or in tandem, enabling one‑button switching between manual and automatic modes.
10. One-touch automatic start function: after placing the sample on the clamping plate, simply press Start, and the grinding head and grinding disc will begin operating automatically.

11. Automatic centering prevents multi-faceted grinding and polishing.
12. Dual‑plate, dual‑control operation offers greater flexibility, significantly enhancing sample preparation efficiency.

Technical Specifications:

Millstone diameter	Standard configuration: φ250mm (other specifications available upon customization)
Polishing and Grinding Disc Control	Dual-disc, dual-control
Grinding disc rotational speed	50–1000 r/min (stepless speed regulation)
Grinding disc rotational speed	Eight-speed constant speed
Rotational direction of the polishing pad	Forward and reverse
Grinding head rotational speed	60RPM
Grinding head pressurization method	Spring mechanical compression
Clamping quantity	4 pieces
Countdown function	Set the time arbitrarily; the machine will shut down automatically when the time is up.
Power supply	Voltage: 220V Frequency: 50Hz
Power	0.9KW
External dimensions	770X730X530m
Weight	120Kg

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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

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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?

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Customer Reviews

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.”

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.”

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.”

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Keywords:

LBT-2PB Touchscreen Semi-Automatic Metallographic Sample Grinding and Polishing Machine (Dual‑Disc, 4 Specimens, Mechanically Pressurized, Stepless Speed Regulation)

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