Horizontal Metal Ball Lapping Machine
Precision horizontal lapping for metal balls from Φ3 mm to Φ76.2 mm.
Industrial horizontal lapping machine engineered for high-volume production of precision metal balls in bearing, valve, and automotive manufacturing. Four models handle batch capacities from 150kg to 550kg with hydraulic pressurization up to 100 KN for consistent sphericity across extended production runs.
Key Specs
Key Specs
Power
Weight
Dimension
Speed
Overview Points
Horizontal Circulation Design
Four Model Range
Sub-Micron Spindle Accuracy
Hydraulic Guided Movement
Stepless Speed Control
PC-Controlled Operation
Extended Service Life
Dual Operation Capability
Key Features
The main spindle assembly uses imported bearings with oil-splash lubrication, holding radial and end runout within 0.01 mm. This level of control translates directly into consistent sphericity and surface quality across large batch volumes—critical for bearing balls, valve balls, and other precision spherical components.
Headstock advancement is driven hydraulically and guided by roll linear guide ways, mechanically isolating the pressurization function from the sliding structure. This separation reduces uneven wear on the lapping plates and maintains uniform material removal even at full working pressures up to 100 KN.
Both the rotating disk and the feeding plate use frequency-conversion stepless regulation, giving operators continuous adjustment of spindle speed (up to 60 r/min depending on model) and feed rate (as low as 0.03 r/min). This allows precise matching of lapping parameters to ball diameter, material hardness, and target surface finish.
The integrated PC control system manages process parameters while a ball-pile switch at the inlet detects material flow irregularities and a spindle stop protection device halts the machine if abnormal conditions are detected. These features reduce scrap rates and protect both the operator and the equipment.
Machines in this series weigh between 5,300 kg and 9,500 kg, built on rigid cast structures designed for continuous factory operation. The robust frame absorbs vibration during high-pressure lapping, preserving accuracy over years of production use.
Technical Specifications
| Model | BO-7770 | BO-7780 |
| Ball size range | Φ3~φ12.7mm | Φ3~φ40mm |
| Size of lapping plate (D*d*h) | 700*440*80mm | 800*440*80mm |
| Lapping wheel size (D*d*h) | 700*440*80mm | 800*440*80mm |
| Max. working pressure | 40KN | 65KN |
| Max. capacity | 150kg | 250kg |
| Rotating disk speed | 5-40r/min (stepless) | 10-60r/min |
| Feeding plate speed | 0.03~0.21r/min (stepless) | 0.03-0.21r/min |
| Main motor power | 5.5kw | 5.5kw |
| Rotating disk motor power | 0.75kw | 0.75kw |
| Machine dimension | 3000*2500*1550mm | 3000*2800*1550mm |
| Weight | 6500kg | 9500kg |
| Model | BO-7790 | BO-4740 |
| Ball size range | Φ25.4~φ76.2mm | Φ10~φ50mm |
| Size of lapping plate (D*d*h) | 900*405*100mm | 950*440*100mm |
| Lapping wheel size (D*d*h) | 900*405*100mm | 900*405*100mm |
| Max. working pressure | 100KN | 100KN |
| Max. capacity | 550kg | 300kg |
| Rotating disk speed | 10-45r/min | 20/28/40r/min |
| Feeding plate speed | 0.37-2.6r/min | 0.1-4r/min |
| Main motor power | 7.5kw | 4.5/6.0/7.5kw |
| Rotating disk motor power | 2.2kw | 1.5kw |
| Machine dimension | 3500*3300*1900mm | 3268*1345*1525mm |
| Weight | 9000kg | 5300kg |
Applications
Ball bearing manufacturing — lapping steel, ceramic, and hybrid bearing balls to tight sphericity tolerances
Valve component production — finishing check valve balls and seat inserts for leak-free sealing
Automotive precision parts — processing transmission and steering system balls
Bicycle and motorcycle components — lapping hub bearing balls for smooth rotation
Industrial pump and hydraulic equipment — producing wear-resistant balls for high-pressure fluid systems
Measuring instrument manufacturing — finishing gauge balls and calibration spheres
Video
FAQ
The key specifications of Horizontal Metal Ball Lapping Machine include: Power: 5.5kw, Weight: 6500kg, Dimension: 3000*2500*1550mm, Speed: 5-40r/min (stepless). Contact us for the full specification sheet.
Horizontal Metal Ball Lapping Machine is widely used in: Ball bearing manufacturing — lapping steel, ceramic, and hybrid bearing balls to tight sphericity tolerances; Valve component production — finishing check valve balls and seat inserts for leak-free sealing; Automotive precision parts — processing transmission and steering system balls; Bicycle and motorcycle components — lapping hub bearing balls for smooth rotation.
All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.
We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.
Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.
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