DR-750B Grinding Machine for Small and Medium-Sized Iron Castings

Main Configuration

Dual workbenches,single arm,dual processing spindles

Key Parameters

Product Overview 

The DR-750B, developed by Anhui Xinjingjie Automation Technology Co., Ltd., is a single-arm, dual-station grinding system specifically engineered for small-to-medium cast iron parts. Featuring 8-axis/7-linkage core technology and a dual-spindle configuration, it delivers both high-precision grinding and efficient production capabilities. Its dual-station rotary table enables simultaneous loading/unloading and grinding operations, significantly boosting productivity. Ideal for post-processing tasks like deburring and polishing of batch-produced iron components such as automotive parts and engineering machinery accessories.  

Core Technical Advantages 

1.  Ultimate Rigidity & High Payload Design 

    • Worktable and robotic arm synchronously handle payloads up to 200kg. Reinforced reducers and arm structures achieve combined rigidity exceeding 400kg, ensuring stable processing of large sprue/gate remnants (tested force >165kg).  

    • Compact and robust structure design delivers rigidity equivalent to KUKA’s 400kg-payload robots, far surpassing conventional robotic grinding systems.  

2.  Intelligent Compensation & Flexible Grinding System 

    • Displacement Detection & Compensation: Standard displacement sensors automatically identify workpiece variations and adjust grinding paths to accommodate significant casting tolerances.  

    • **Flexible Contour Adaptation:** For easily deformable workpieces, triple closed-loop control (current, position, torque) enables compliant grinding with parametrically adjustable contact force.  

3.  **Dual-Station High-Efficiency Operation**  

    • Dual-station rotary table allows simultaneous loading/unloading and grinding. Integrated with automatic station-switching technology, productivity increases by >30%.  

    • Dual-spindle grinding system concurrently performs roughing and finishing operations, shortening single-process cycles.  

4.  **Safety, Eco-Friendly & Easy Maintenance**  

    • Double-layer steel guards with automatic electrical door locks and loading-area light curtains meet industrial safety standards.  

    • Sealed structure supports centralized dust extraction. Neat internal layout simplifies cleaning, complying with workshop 5S requirements.  

Typical Application Scenarios

• Automotive Industry: Batch grinding of cast iron parts (engine blocks, brake discs).  

• Engineering Machinery: Polishing of small-to-medium iron components (hydraulic parts, gearbox housings).  

• Agricultural Machinery: Standardized post-processing of transmission parts, valve bodies, etc.  

Compatible Product Specifications 

• Small-to-medium cast iron parts ≤200kg;  

• Structural components (regular/complex) within 750×H550mm dimensions;  

• Workpieces requiring high grinding precision (±0.02mm).  

Innovation Highlights

1. 8-Axis Linkage Flexible Machining

    Compared to traditional 5-axis/4-linkage equipment, the DR-750B’s 8-axis structure enables continuous curved-surface processing, covering >80% of cast iron part types—versus only ~30% compatibility for 5-axis systems.  

2.  AI-Assisted Intelligent Production System

    • Integrated AI vision recognition enables high-precision workpiece positioning, reducing fixture constraints and lowering fixture costs by >30%.  

    • Chinese programming interface with model-import auto-programming boosts teaching efficiency by 50%.  

Standard Configuration

• Dual-spindle grinding system (11.5kW spindle motors);  

• Automatic workpiece detection & compensation system;  

• Double-layer protective steel panels with centralized dust extraction;  

• Chinese intelligent control system.