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LBL-8A Rock Servo Vacuum-Absorption Automatic Specimen Grinder

Name: LBL-8A Rock Servo Vacuum-Absorption Automatic Specimen Grinder
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

This machine is designed for precision grinding and polishing of samples made from materials such as crystals, ceramics, quartz glass, rock specimens, mineral samples, and metallographic specimens. It features a compact footprint, user-friendly operation, and smooth, stable performance.

Category:

Rock and rock mass testing instrument

Keywords:

E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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LBL-8A Rock Servo Vacuum-Absorption Automatic Specimen Grinder

Description

Product Introduction

Suitable for use in colleges, universities, and research institutes. In accordance with the Highway Bridge Design Specifications JTG D60 and JGJ/T384, our company recommends the LBL‑8A rock servo vacuum‑adsorption automatic thin-section grinder. This machine features programmable control; its grinding feed mechanism is driven by a Delta PLC, a flat‑panel touch computer, and a servo motor, offering convenient operation and reliable construction. The water tray and sample holder are made of stainless steel, making it an ideal device for preparing thin sections in the laboratory. It is operated via a high‑definition touch‑screen LCD panel, with full‑process monitoring of the grinding procedure. Its design parameters are simple, intuitive, and easy to configure. With advanced technology and dependable performance, it delivers high efficiency and virtually zero breakage, achieving precision as fine as 0.025–0.03 mm. It comprehensively enhances or replaces CNC‑based programming. The stage employs vacuum‑adsorption clamping to secure the slides; simply place the sample on the suction cup and activate the vacuum to lock it in place. This straightforward operation significantly addresses the instability, complexity, and short service life associated with traditional fixture‑based mounting. Moreover, this suction cup can simultaneously hold three or more thin sections. The rock‑section grinder is equipped with a diamond grinding wheel on its grinding head. Specimens are mounted on the worktable; during operation, the table rotates while the grinding head advances automatically to perform the grinding. Once grinding is complete, petrographic analysis can be conducted directly under the microscope.

Product Features:

High-definition touch‑screen LCD tablet operation with full‑process monitoring of the grinding process. Simple, intuitive design parameters; advanced technology and reliable performance; high efficiency with zero breakage. Precision can reach 0.025–0.03 mm. It comprehensively enhances or replaces CNC programming. The stage uses vacuum‑adsorption clamping to secure slides; simply place the sample on the suction cup and activate vacuum suction to hold it in place. This straightforward operation significantly addresses the instability, complexity, and short service life associated with traditional fixture‑based clamping. The suction cup can simultaneously hold three or more thin sections. The rock‑section grinder is equipped with a diamond grinding wheel on its grinding head. Specimens are mounted on the stage; during operation, the stage rotates while the grinding head advances automatically to perform grinding. Once grinding is complete, petrographic analysis can be conducted directly under the microscope.

Technical specifications:

Parameter Category	Parameter content
Model number	LBL-8A Rock Servo Vacuum‑Suction Automatic Specimen Grinder
Host power	1.5–3 kW, 50 Hz
Grinding wheel specifications	125×30×40 mm (all-natural diamond cup wheel)
Adsorption plate diameter	150–300 mm (depending on the number of grinding discs)
Operating motor parameters	Torque: 8 N·m, Voltage: 220 V
Control method	Central integrated control using a servo motor, PLC, and touch screen.
Grinding disc thickness range	0.01-8mm
Measurement and Testing System	Linear optical axis, grating scale
Display mode	Touchscreen LCD display
Operating system	PLC + vacuum adsorption
Grinding range	Grindable standard samples or irregular raw samples
Work motivation	0.55kW-1.5kW
Spindle speed	3000rpm
Sample parallelism	≤0.005±3μm
Noise	≤65dB
Equipment weight	300kg
Cooling method	Tap water

Accessories: 1 grinding wheel, 2 combination wrenches, 2 pairs of adjustable leveling feet, and 1 dedicated socket.

Set, one set of plumbing pipes

This machine’s configuration:

1. Grinding disc host: 1 unit;

2. Operating System: 1 unit (Delta servo)

3. Electrical System: 1 set

4. Equipped with one silent air compressor.

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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

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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

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“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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