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Steel Ball Manufacturing Equipment: Grinding & Lapping Machines

RISHENG supplies vertical steel ball manufacturing equipment for precision steel ball factories and bearing manufacturers. Our equipment range includes the 3M7480 Vertical Steel Ball Grinding Machine for hard grinding φ3–20 mm steel balls and the 3ML4780D Vertical Steel Ball Lapping Machine for finishing and superfinishing φ3–25 mm steel balls after grinding.

CHOOSE THE RIGHT STEEL BALL MANUFACTURING EQUIPMENT

3M7480 Vertical Steel Ball Grinding Machine

The 3M7480 vertical steel ball grinding machine is designed for batch processing of steel balls in steel ball factories and bearing manufacturing plants. Its vertical machine structure and circulation system help maintain stable processing pressure and consistent ball movement during production.
Depending on the selected working plates and processing configuration, the machine can be used for steel ball flashing, rough grinding or hard grinding applications. It is suitable for customers looking for an efficient vertical steel ball machine for high-volume bearing ball production.

Processing Type: Steel Ball Grinding
Machine Structure: Vertical
Processing Method: Large-Cycle Processing
Applicable Materials: Bearing Steel, Carbon Steel and Stainless Steel
Application: Steel Ball Factories and Bearing Manufacturers

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3ML4780D Vertical Steel Ball Lapping Machine

The 3ML4780D vertical steel ball lapping machine is designed for the fine lapping and superfinishing of precision steel balls after hard grinding. It helps improve ball roundness, diameter consistency and surface finish before final polishing, sorting and inspection.
This precision steel ball lapping equipment is suitable for steel ball factories, bearing manufacturers, ball screw suppliers and other companies producing high-accuracy industrial balls.

Processing Type: Fine Lapping and Superfinishing
Machine Structure: Vertical
Processing Method: Large-Cycle Processing
Applicable Materials: Bearing Steel, Stainless Steel and Precision Alloy Balls
Application: Precision Steel Ball and Bearing Production

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3M7480 vs. 3ML4780D Steel Ball Manufacturing Equipment

Choosing the correct steel ball manufacturing machine depends on the current processing stage, ball material, ball diameter, required production capacity and target precision.

Comparison	3M7480 Vertical Steel Ball Grinding Machine	3ML4780D Vertical Steel Ball Lapping Machine
Equipment Type	Steel ball grinding and processing machine	Precision steel ball lapping machine
Main Process	Flashing or grinding, subject to configuration	Fine lapping and superfinishing
Processing Stage	Before final lapping	After hard grinding
Main Purpose	Remove material and correct ball size	Improve roundness, consistency and finish
Suitable Materials	Bearing steel, carbon steel and stainless steel	Bearing steel, stainless steel and alloy steel
Typical Customers	Steel ball factories and bearing factories	Precision ball and bearing manufacturers
Selection Basis	Material removal and production capacity	Required grade and surface finish

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Steel Ball Manufacturing Process and Production Equipment

A complete steel ball manufacturing process normally includes the following stages:

Steel Wire → Cold Heading → Flashing → Heat Treatment → Hard Grinding → Fine Lapping → Polishing → Sorting → Inspection

Steel Ball Grinding Machine

A steel ball grinding machine removes excess material, corrects ball diameter and improves the basic spherical shape before precision finishing.

Steel Ball Lapping Machine

A steel ball lapping machine is used after hard grinding to improve roundness, lot diameter variation, surface finish and dimensional consistency.

Steel Ball Polishing and Sorting Equipment

After grinding and lapping, steel balls are polished, sorted and inspected according to diameter, roundness, hardness, surface defects and required precision grade.

RISHENG can assist customers looking for:
steel ball production equipment
bearing ball manufacturing machines
steel ball grinding and polishing equipment
precision ball lapping machines
automatic steel ball processing equipment
steel ball factory production solutions

Discuss Your Steel Ball Production Process

How to Choose a Steel Ball Grinding or Lapping Machine

Required Information	Details to Provide
Ball Material	Bearing steel, carbon steel, stainless steel or alloy steel
Material Grade	AISI 52100, 304, 316, 420, 440C, 1015 or other
Ball Diameter	Minimum and maximum diameter
Ball Hardness	HRC, HRB or current heat-treatment condition
Incoming Condition	Ball blank, flashed, heat-treated or hard-ground
Target Precision	G5, G10, G16, G25, G100 or other
Processing Requirement	Grinding, fine lapping or superfinishing
Surface Requirement	Required roughness or appearance

View Stainless Steel Ball Grades

Steel Ball Manufacturing Equipment for Different Materials

Bearing Steel Ball Grinding and Lapping Machines
AISI 52100, GCr15, 100Cr6 and SUJ2 bearing steel balls require controlled heat treatment, grinding and precision lapping to achieve the required hardness, roundness and surface quality.
The 3M7480 and 3ML4780D can be selected according to the processing stage and finished-ball requirements.

Learn more about AISI 52100 bearing steel balls.

Stainless Steel Ball Grinding and Lapping Machines
RISHENG steel ball equipment can also be configured for processing different stainless steel ball grades.
AISI 304 and 316 stainless steel balls have relatively lower hardness and require suitable processing pressure and working plates. Hardened AISI 420 and 440C stainless steel balls can be processed through grinding and precision lapping according to the required diameter and surface finish.
Customers searching for a stainless steel ball grinding machine should provide the stainless steel grade, ball diameter, hardness, incoming condition and target precision before equipment selection.

Typical stainless steel ball equipment keywords include:
stainless steel ball grinding machine
stainless steel ball lapping machine
AISI 420 stainless steel ball processing equipment
AISI 440C stainless steel ball lapping machine
machine for grinding stainless steel balls

Learn more about 201, 304, 316, 420 and 440C stainless steel balls.

Carbon Steel Ball Manufacturing Equipment

The 3M7480 can be selected for grinding low-carbon and high-carbon steel balls, depending on ball hardness, diameter and processing condition.
Typical materials include AISI 1015, 1045 and 1085 carbon steel balls used in casters, drawer slides, hardware, conveyor components and industrial applications.

Learn more about low and high carbon steel balls.

Alloy Steel Ball Processing Equipment
Selected alloy steel balls can also be processed using vertical grinding and lapping equipment. Machine configuration should be confirmed according to alloy composition, heat-treatment condition, hardness and target surface quality.

View Carbon Steel Balls

Why Choose RISHENG as Your Steel Ball Equipment Manufacturer?

RISHENG is an experienced precision steel ball manufacturer and steel ball manufacturing equipment supplier in China. Our understanding of steel ball materials and production processes allows us to recommend equipment according to actual ball-processing requirements.

Practical Steel Ball Production Experience

RISHENG understands the processing differences between bearing steel, carbon steel, stainless steel and alloy steel balls.

Equipment Selection Support

Machines are selected according to material grade, diameter, hardness, processing allowance, production capacity and target precision.

Grinding and Lapping Process Support

Customers can receive recommendations regarding machine configuration, working plates and steel ball processing stages.

Custom Electrical Configuration

Voltage, phase, frequency and selected electrical components can be configured according to the customer’s local factory requirements.

Installation and Operator Training

Installation guidance, commissioning assistance and machine operation training can be provided according to the project scope.

Spare Parts and After-Sales Service

Grinding plates, lapping plates, mechanical parts and selected electrical components can be supplied for long-term machine operation.

Send Your Ball Specifications

FAQ of Steel Ball Manufacturing Equipment

Q How much does a steel ball grinding machine cost?

A
Steel ball grinding machine prices depend on the model, processing range, working plates, control system, electrical configuration and required accessories. Contact RISHENG with your production requirements for an accurate quotation.
Q Do you supply grinding and lapping plates?

A Grinding plates, lapping plates and related spare parts can be supplied according to the equipment model and steel ball process.
Q Can the machine voltage be customized?

A Yes. The electrical configuration can be matched to the customer’s local voltage, phase and frequency.
Q Can the machines process AISI 52100 bearing steel balls?

A
Yes. AISI 52100, GCr15, 100Cr6 and SUJ2 bearing steel balls are typical materials processed by steel ball grinding and lapping machines.
Q Which machine is suitable for AISI 420 and 440C stainless steel balls?

A
The appropriate machine depends on whether the balls require grinding or final lapping. Hardened AISI 420 and 440C balls may require grinding followed by precision lapping.
Q Can these machines process stainless steel balls?

A
Yes. The machines can be configured for selected stainless steel balls. Customers should provide the stainless steel grade, diameter, hardness, incoming condition and required precision.
Q What is the 3M7480 vertical steel ball grinding machine used for?

A
The 3M7480 is designed for vertical batch processing and grinding of bearing steel, carbon steel and stainless steel balls. The exact configuration should be selected according to the ball material and processing stage.
Q What is the difference between a steel ball grinding machine and a lapping machine?

A
A grinding machine removes material and corrects ball diameter and shape. A lapping machine is used after hard grinding to improve roundness, diameter consistency and surface finish.
Q What equipment is required to manufacture steel balls?

A
A complete steel ball production line normally requires cold heading, flashing, heat treatment, hard grinding, fine lapping, polishing, sorting and inspection equipment.