Automatic Double-ended Chamfering Machine SD20-50

Jiaming SD20-50 Automatic Double-End Chamfering Machine is equipment in the field of automatic double-side chamfering machine / bearing chamfering machine / bushing finishing equipment / oil-less bearing processing / sliding bearing manufacturing equipment / automatic feeding system / automatic double-end chamfering machine / sliding bearing processing machine / bushing finishing equipment / oil-less bearing processing machine, developed and supplied by China's Jiaxing Jiaming Machinery Technology Co., Ltd. to enterprises manufacturing sliding bearings, self-lubricating bearings, oil-less bearings, bushings, and tubular mechanical components that require automation of the double-end processing stage.
The equipment is used for end-facing and internal-external chamfering on both sides of bearings or bushings. The SD20-50 is suitable for production lines that need to reduce manual operations, shorten processing time, and maintain product consistency after forming or sizing stages.
The machine's application is not based on a fixed specification for all bearings. The solution needs to be determined based on inner diameter, outer diameter, length, material, part geometry, machining allowance, chamfer requirements, height tolerance, feeding method, target output, and existing production line connection conditions.

1. Key Features of the Equipment

The SD20-50 is specifically designed for the finishing stage of bearings and bushings, integrating automatic feeding, positioning, clamping, and machining within a single cycle.
According to Jiaming's published information, the machine can simultaneously perform double-end facing and internal-external chamfering, reducing the number of setups compared to processing each side separately.
The feeding system uses a vibrating feeding bowl and track to deliver bearings to the machining area. This feeding mechanism supports continuous operation and reduces the need for manual loading of individual products.
Once the workpiece is in position, the clamping mechanism holds the part during machining. Power heads positioned on both sides perform double-end processing according to the set parameters.
The equipment uses PLC electrical control to manage the sequence of feeding, clamping, machining, and product transfer, meeting the automation requirements for the chamfering stage in bearing manufacturing plants.
The machine configuration described by the manufacturer includes a frame, left/right slide, power head, feeding mechanism, clamping mechanism, hydraulic system, PLC control, vibrating feeding bowl, and feeding track.
According to published data, the SD20-50 is suitable for bearings with an inner diameter range of approximately 6–25 mm and supports height tolerance control of approximately 0.1 mm under suitable machining conditions.
Jiaming's stated output can reach approximately 8,000 products/day. Actual output needs to be determined based on part size, material, machining allowance, cycle time, and quality requirements of each product.

2. What Needs Does the Equipment Suit?

The Jiaming SD20-50 Automatic Double-End Chamfering Machine is suitable for:
- Double-end processing of sliding bearings.
- Processing of oil-less bearings.
- Processing of self-lubricating bushings.
- Bearing end-facing.
- Internal bearing chamfering.
- External bearing chamfering.
- Simultaneous double-side product processing.
- Automation of the chamfering stage.
- Partial replacement of manual feeding operations.
- High-volume bushing production lines.
- Finishing stage after round forming.
- Finishing stage after sizing.
- Enterprises needing to increase product consistency.
- Factories wishing to connect chamfering with other automated stages.
- Enterprises manufacturing various types of bearings with dimensions within the machine's suitable range.

3. Consultation and Implementation Process

The process may include:
- Receiving bearing samples or technical drawings.
- Determining bearing or bushing type.
- Determining inner diameter.
- Determining outer diameter.
- Determining product length.
- Determining material.
- Determining allowance at both ends.
- Determining internal chamfer requirements.
- Determining external chamfer requirements.
- Determining height tolerance.
- Determining required output.
- Checking feeding capability with a vibrating bowl.
- Determining clamping method.
- Determining tooling and machining conditions.
- Test run with actual products when necessary.
- Checking dimensions and geometry after machining.
- Adjusting machine parameters.
- Determining connectivity with existing production lines.
- Implementing operation according to actual production conditions.

3.1. Criteria for Selecting Machining Solutions

The solution using the SD20-50 should be based on:
- Type of sliding bearing.
- Type of bushing.
- Inner diameter.
- Outer diameter.
- Part length.
- Product material.
- Bearing wall thickness.
- Geometry of both ends.
- Machining allowance.
- Required chamfer angle.
- Chamfer size.
- Height tolerance.
- Surface finish requirements after machining.
- Workpiece orientation capability.
- Feeding method.
- Machining cycle.
- Daily output.
- Level of automation.
- Connectivity requirements with upstream and downstream equipment.

3.2. Key Specifications and Features

- Product: Jiaming SD20-50 Automatic Double-End Chamfering Machine.
- Model: SD20-50.
- Manufacturer: Jiaxing Jiaming Machinery Technology Co., Ltd.
- Country: China.
- Type: Automatic double-side chamfering machine.
- Main application: Sliding bearing / oil-less bearing / bushing.
- Function: End-facing and double-side chamfering.
- Chamfer: Internal and external edges.
- Processing method: Simultaneous double-end processing.
- Feeding: Automatic feeding.
- Feeding mechanism: Vibrating bowl and track.
- Clamping: Automatic clamping mechanism.
- Drive/processing unit: Double-sided power head.
- Control: PLC electrical control.
- Hydraulic system: Yes.
- Reference inner diameter range: Approximately 6–25 mm.
- Reference height tolerance: Approximately 0.1 mm.
- Stated output: Approximately 8,000 products/day.
- Production line integration capability: Can be arranged in a bearing production line depending on configuration.

3.3. Information Required from Customers

Customers should provide:
- Name of product to be machined.
- Bearing or bushing type.
- 2D or 3D drawings.
- Product samples, if available.
- Inner diameter.
- Outer diameter.
- Length.
- Material.
- Wall thickness.
- Dimensions before machining.
- Dimensions after machining.
- End face allowance.
- Chamfer angle and size.
- Required tolerances.
- Surface finish requirements.
- Output per shift or per day.
- Desired feeding method.
- Stage before chamfering.
- Stage after chamfering.
- Production line connectivity requirements.
- Product inspection standards.
The more complete the information, the more suitable the selection of tooling, feeding mechanism, clamping conditions, and machining parameters will be for the actual product.

3.4. Product Inspection and Evaluation

Before putting the machine into stable production, it is necessary to check the feeding capability, product orientation, clamping position, and bearing stability during the machining process.
After machining, products need to be inspected for overall length, consistency of both end faces, internal chamfer size, external chamfer size, edge geometry, and specified tolerances on the drawing.
For new bearings or specifications different from those currently running, sample testing helps determine suitable tooling, cutting depth, cycle speed, and clamping conditions before continuous production is implemented.
During operation, it is necessary to monitor the condition of the cutting tools, feeding mechanism, clamping mechanism, and dimensional stability to minimize variations between products and production batches.

4. Benefits for Customers and Businesses

The Jiaming SD20-50 Automatic Double-End Chamfering Machine helps businesses combine multiple operations at both ends of the bearing into a single piece of equipment, instead of performing end-facing and chamfering through multiple separate setups.
Thus, the production line can establish a process of automatic feeding → positioning → clamping → double-side machining → chamfering → discharge, reducing direct human involvement in each production cycle.
The ability to process both ends simultaneously can help shorten machining time and improve the consistency of length and edge geometry between products, when the machine is set up and operated under suitable conditions.
The integration of a vibrating bowl, feeding track, PLC control, and automatic clamping is also suitable for factories gradually transitioning from manual or semi-automatic machining to bearing production lines with a higher level of automation.

5. Highlights and Suitable Customers

- Dedicated equipment for sliding bearings and oil-less bearings.
- Simultaneous double-end product processing.
- End-facing and chamfering in the same cycle.
- Internal and external chamfering.
- Automatic feeding.
- Vibrating bowl feeding.
- Automatic clamping.
- PLC control.
- Hydraulic system.
- Reference inner diameter range approximately 6–25 mm.
- Supports height tolerance control of approximately 0.1 mm.
- Stated output approximately 8,000 products/day.
- Suitable for bearing finishing stage.
- Can be arranged after round forming or sizing.
- Suitable for factories needing to reduce manual operations.
- Suitable for bearing manufacturing enterprises needing to enhance automation levels.
The Jiaming SD20-50 Automatic Double-End Chamfering Machine is suitable for enterprises manufacturing sliding bearings, self-lubricating bearings, oil-less bearings, and bushings that require automation of the end-facing and double-side chamfering stages, especially for production lines demanding stable output, reduced setup times, and connectivity with other forming, sizing, and material handling stages.