Product Features & Details

Internal Grinding for Precision Bore Finishing

The MBD2120 is intended for finishing internal surfaces in metal components. Internal grinding removes material from the bore using a suitable grinding wheel, helping bring a previously machined surface to its required final dimensions and finish.

Typical application requirements include bore diameter, roundness, cylindricity, and surface roughness. The achievable result depends on the workpiece material, grinding allowance, wheel selection, holding method, and machine setup.

Hydraulic Operating Configuration

The product title identifies the machine as a hydraulic internal grinder. This configuration should be reviewed against the required table movement, feed arrangement, and production cycle.

Before selecting the machine, confirm which movements are hydraulically driven, the available adjustment range, and the operating modes included in the quoted configuration. These details determine how the machine fits the intended grinding process.

Workpiece Holding and Alignment

Accurate workpiece positioning is essential for internal grinding. The holding arrangement must support the component securely while aligning the bore with the grinding spindle.

Fixture selection should account for the component’s external geometry, reference surfaces, weight, and grinding forces. Suitable alignment and support help reduce movement during grinding and support consistent results across repeated parts.

Grinding Wheel Selection for Different Bores

The grinding wheel must suit the bore diameter, grinding depth, material hardness, and required surface finish. Wheel dimensions and spindle compatibility should be checked together rather than selected independently.

For deep or small-diameter bores, access and spindle clearance are particularly important. Providing a complete workpiece drawing allows the grinding arrangement to be assessed before quotation.

Convenient Setup and Operating Access

The product image shows front-mounted handwheels and operating controls. This layout provides access to machine adjustments and controls near the working position.

The exact functions of the handwheels, feed controls, and operating buttons should be confirmed for the supplied machine. A work light is also visible in the product image to assist observation of the working area.

Process Planning for Consistent Results

A suitable grinding process combines the correct wheel, workpiece speed, feed settings, grinding allowance, and dressing procedure. These factors should be established according to the component’s tolerance and finish requirements.

For repeated production, define the inspection method and acceptance criteria alongside the machining process. Sample grinding and measurement can help establish whether the selected configuration meets the application requirements.

Technical Parameters

The following values are taken from the listing’s attribute table. Confirm that they apply to the selected MBD2120 configuration before ordering.

Parameter	Listed Specification
Model	MBD2120
Machine type	Hydraulic internal grinding machine
Brand	SMAC
Voltage	380 V
Listed power	5.5 kW
Maximum workpiece length	500 mm
Maximum workpiece weight	200 kg
Machine weight	1,000 kg
Overall dimensions, L × W × H	2,800 × 1,800 × 1,700 mm
Place of origin	Jiangsu, China
Warranty	1 year
Machinery test report	Provided
Outgoing inspection video	Provided

Bore capacity, grinding depth, spindle speed, wheel dimensions, feed travel, and guaranteed machining accuracy should be confirmed in the final technical specification.

Customization Options

Discuss the following application requirements with the supplier. Availability of modifications or accessories must be confirmed for the selected model.

• Workpiece fixtures: Specify component geometry, reference surfaces, and holding requirements.
• Grinding wheel and spindle arrangement: Provide bore diameter, depth, material, and finish requirements.
• Electrical supply: Confirm the site voltage and frequency.
• Operating configuration: Specify manual, automatic, or CNC requirements for supplier review.
• Coolant and filtration: Discuss the arrangement required for the material and grinding process.
• Inspection requirements: Define tolerances, measurement methods, and any sample acceptance test.

FAQ

What is the MBD2120 used for?

It is listed as an internal grinding machine for finishing bores in metal components. Suitability depends on the bore dimensions, material, workpiece holding, and required accuracy.

Is this an internal grinder or a centerless grinder?

The selected model and product title identify an internal grinder. Centerless grinding uses a different workpiece support and wheel arrangement. Request the model-specific technical sheet when ordering.

Is the MBD2120 CNC controlled?

The attribute table marks the product as CNC, but the supplied images and description do not establish the exact control configuration. Confirm the controller, controlled axes, and automatic functions in the quotation.

What accuracy can the machine achieve?

The listing contains accuracy figures, but the supplied specification table belongs to a different grinder. Request confirmed MBD2120 accuracy data and, where needed, a sample grinding test against your drawing.

What information is needed for a quotation?

Provide the workpiece drawing, material and hardness, bore diameter and depth, grinding allowance, dimensional tolerances, surface finish requirement, and expected production volume.

Are inspection documents available?

The listing states that a machinery test report and outgoing inspection video are provided.

Support & Service

• Pre-shipment documentation: Request the machinery test report and outgoing inspection video listed for the product.
• Warranty: A one-year warranty is stated, subject to confirmed coverage and service terms.
• Technical specification: Obtain a model-specific specification covering capacity, spindle configuration, controls, and accuracy.
• Installation information: Request electrical, foundation, space, and coolant requirements before delivery.
• Operating documentation: Request the operating manual, lubrication instructions, maintenance schedule, and spare-parts information.

Send your component drawing and grinding requirements to request a confirmed MBD2120 configuration and quotation.