What is the working efficiency of the machine?

The working efficiency is 250-300m2/h.

DJ-330 Advanced Grinding Machine for Concrete Floor Finishing

Name: DJ-330 Advanced Grinding Machine for Concrete Floor Finishing
Brand: Henan Dajia Mining Machinery Co., Ltd.
SKU: 1986812291

Henan, ChinaHenan Dajia Mining Machinery Co., Ltd.

US$850.00

1-4 Sets

US$825.00

5-9 Sets

US$800.00

10+ Sets

Product profile

Customization

Available

Type

Angle Grinder

Power Source

Hydraulic

Model NO.

DJ-330

Object

Drilling Bit

Application

Construction

Disc(Wheel) Type

Grinding Disc

Material

Metal

Working Style

High-speed universal

Disc Diameter

330mm

Variable Speed

With Variable Speed

Model No.

DJ330

Working Width

330mm

Rated Voltage

380/220V

Working Motor

0.75kw

Daily Use

Concrete

Speed

750r/Min

Package

Wooden Boxes

Dust Box Capacity

20L

Package Size

1100*460*980mm

Weight

145kg

Objection

Road

Number of Grinding Heads

4*270mm

Equipment Rotation Speed

300-1500 Rpm

Motor Power

4kw

Variable Frequency Power

4kw

Transport Package

Wooden Package

Specification

145kg

Trademark

Dajia

Origin

China

HS Code

8464209000

Key features

Versatile Surface Treatment: Ideal for leveling, grinding, polishing concrete, terrazzo, granite, and removing old coatings or epoxy.

High Efficiency Operation: Achieves 250-300m2/h working efficiency with flexible, self-contained dust collection system.

Customizable Consumables: Grinding heads and consumables (diamond heads, sandpaper, etc.) can be freely replaced and configured.

Independent Motor Control: Main motor and dust suction motor are controlled by separate switches for convenient and safe operation.

Professional Manufacturer: Produced by Henan Dajia, a large-scale manufacturer with ISO9001, SGS, and AAA certifications.

Flexible Customization: Supports full customization, minor customization, and flexible customization from samples or designs.

Quality Assurance: 100% inspection for finished products including visual and function checks before packing.

Global Support Network: Partnered service centers in key regions provide reliable after-sales support for overseas clients.

Company profile

Henan Dajia Mining Machinery Co., Ltd.

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 years CertifiedNearest Port: Qingdao portAverage Response Time: ≤4.23h

AI-Powered supplier vetting

SummaryThe supplier is identified as a limited company and factory with 11 employees, associated companies, and a valid import/export license. It reports multiple machining facilities, eight product series, more than 100 models, and broad customization capabilities. ODM and OEM services are available, but no new products were developed in the past year and no SDK is available. Quality assurance is reported, while finished products are checked by packing staff. Service-management documentation is weak: no written procedures or records are reported for supplier-service assessment, corrective actions, or complaint handling. The supplier has no overseas warehouse, showroom, agent, branch, or offline trade-show participation, and reports zero countries with overseas services. Financial capacity is represented only by year labels, without sufficient performance details. Customer locations are described as worldwide, but specific customer cases are not provided.

Supplier typeThe supplier is explicitly identified as a factory and a limited company, with 11 employees and associated companies. It also holds a valid import/export license, supporting its ability to conduct international trade.

After-Sales capabilityThe supplier states that it provides pre-sales, in-sales, and after-sales service, but reports no written procedures or records for service assessment, corrective and preventive actions, or complaint handling. It also has no overseas warehouse, showroom, agent, or branch, which limits demonstrated overseas service infrastructure.

R&D capabilityThe supplier reports no new products in the past year and no available SDK. Although ODM service is available, the explicit absence of recent new-product development and SDK capability indicates limited demonstrated innovation resources.

Production capacityThe supplier identifies cutting, bending, shearing, milling, gantry machining-center, and CNC machining-center facilities, and states that it offers eight product series and more than 100 models. It reports peak- and off-season lead times within 15 working days and has 11 employees, providing evidence of operating production capability, although capacity scale is not fully documented.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. Its stated ODM capability further supports the availability of design-related customized manufacturing services.