1. Industry Pain Points: Why Traditional Crank Grinders Restrict Factory Output
The global demand for high-precision eccentric shaft parts keeps rising, especially HVAC compressors, new energy vehicle camshafts and robot reducer shafts. Most manufacturers face 4 core production bottlenecks with old grinding machines:
2. Whole Machine Structural Design & Finite Element Optimization Analysis
2.1 High Rigidity Cast Iron Bed Frame
All base, column and slide components adopt high-grade dense baked cast iron. After artificial aging stress relief treatment for over 6 months, the bed avoids long-term deformation under 24h continuous heavy grinding load. The inclined oil drainage design on the bed prevents cutting fluid accumulation, no oil leakage, easy daily cleaning and maintenance.
2.2 Multi-Physical Field Simulation Verification Before Mass Production
Before formal production, every key component of G1 passes finite element static stress analysis, resonance frequency test and fluid thermal coupling simulation:
Static stress test: Max deformation controlled within micron level under full grinding load
Resonance analysis: Avoid working frequency overlap with spindle rotation speed, eliminate high-speed vibration
Hydrostatic oil film pressure simulation: Optimize oil cavity layout to balance uniform bearing capacity
2.3 Core Advantage: Full Hydrostatic Guide Rail System
Hydrostatic guide is the core competitive advantage of Yuhen eight-series grinders, different from ordinary linear guide competitors.
- Material Composite base after nitriding + cryogenic treatment, ultra-high rigidity, corrosion resistance
- Principle Pure liquid friction between guide surfaces, zero direct metal contact, no wear even after decades of operation
- Precision Straightness less than 0.1μm / 500mm
- Thermal Built-in circulating cooling channel on guide body, control temperature rise within ±0.5℃ during long-hour grinding
- Life Unlimited theoretical service life, almost zero guide maintenance cost
3. Full Closed-Loop Precision Control System & Core Accuracy Parameters
3.1 High Precision Grating Ruler Full Feedback
G1 equips imported high-resolution grating ruler as standard configuration, realize full closed-loop control of X-axis feed system, no intermediate transmission error:
| Precision Item | Technical Index |
|---|---|
| Minimum grating resolution | 0.0001 mm |
| X-axis positioning accuracy | 0.0012 mm |
| X-axis repeated positioning accuracy | 0.0011 mm |
Every feeding movement of the grinding wheel is measured in real time by grating, the CNC system automatically compensate tiny dimensional deviation, ensure consistent size of thousands of workpieces in one batch.
3.2 Marposs Anti-Collision & Online Air Gap Detection System
This integrated safety & measuring module is standard configuration for G1, two core functions:
3.3 Intelligent CNC Human-Machine Interface
Windows-based graphical operation system, two convenient functions for factory operators:
Online editing of eccentric shaft contour curve
Direct drawing import, auto generate complete grinding program
No complex G-code manual programming required, reduce operator training cycle from 1 month to 3 days.
4. One-Clamp Multi-Eccentric Integrated Grinding Function
4.1 Unique Processing Logic for Eccentric Workpieces
Most crankshaft grinders on market can only grind single eccentric circle once clamped. G1 realizes one-time clamping to finish 2 or more eccentric outer diameters grinding:
4.2 Efficiency & Yield Data Comparison
| Index | Traditional Common Grinder | Yuhen G1 Crankshaft Grinder | Promotion Effect |
|---|---|---|---|
| Single piece processing time | 12 mins | 8 mins | Save 33% cycle time |
| Batch reject rate | 8%-12% | ≤0.5% | Scrap cost cut over 90% |
| Manual compensation frequency | Every 2h | Once per shift (8h) | Reduce manual labor |
| Suitable batch scale | Small batch below 500pcs | Mass production over 10,000pcs | Support large OEM orders |
4.2 Spindle Matching for Strong Grinding Force
Grinding wheel spindle adopts finite element optimized installation structure, enhance rigidity during heavy stock removal. It can bear large grinding cutting force for rough machining of forgings and cast crankshaft blanks, no chatter marks on workpiece surface.
5. Automation Compatible Design, Unmanned Production Line Matching
5.1 Reserved Standard Robot Connection Interface
G1 reserves complete signal interface for 6-axis robotic arm and truss manipulator, support fully automatic loading/unloading without machine modification:
5.2 Optional Auxiliary Automation Modules
Customers can select supporting modules according to workshop layout:
(1) Multi-stage constant temperature grinding fluid filtration system: Filter precision 0.01mm, keep workpiece surface roughness stable
(2) Oil mist collector: Full cover sheet metal optional, clean workshop environment, suitable air-condition precision workshop
(3) Automatic workpiece cleaning station: Remove grinding residue before offline measurement
5.3 One-Man Multi-Machine Management Mode
After matching robot unit, one operator can take charge of 3-6 sets of G1 grinders at the same time. Labor cost reduced by 70% compared with manual feeding mode, perfectly fit European, Southeast Asian factories with high labor cost.
6. Wide Application Industry & Typical Machining Workpieces
6.1 Core Application Industry 1: Refrigeration & Air Conditioning Compressor
Main processing parts: Compressor crankshaft, eccentric shaft for refrigerator, air conditioner rotary compressor
Processing requirement: Roundness ≤1.5μm, batch size 5000-50000pcs per month
Industry advantage: G1 stable precision solves the problem of compressor noise caused by eccentric shaft dimensional deviation.
6.2 Core Application Industry 2: New Energy Automobile
Main processing parts: Engine camshaft, drive eccentric shaft, new energy motor intermediate shaft
Processing requirement: High fatigue resistance, consistent surface finish for long service life of auto parts
6.3 Extended High-End Application Fields
- (1) Aerospace equipment: Small special eccentric precision shaft
- (2) Medical devices: Implant equipment micro eccentric parts
- (3) Hydraulic & pneumatic: Hydraulic valve eccentric shaft
- (4) Robot reducer: High precision output eccentric shaft
6.4 Workpiece Machining Quality Standard
After grinding by G1 machine:
7. Full Machine Safety Protection & Long-Term Stable Operation
7.1 Multi-Layer Safety Protection Mechanism
7.2 Low Maintenance Cost Design
Hyrostatic guide zero wear, no regular guide replacement
Circulating cooling system extend spindle service life, spindle maintenance cycle over 3 years
Split grinding fluid filtration tank, easy disassembly and cleaning, reduce downtime
7.3 Quality Control Standard Before Delivery
Every G1 grinder undergoes 72-hour full load continuous running test before factory delivery:
8. Cooperation & Contact Information, CTA Ending
8.1 Why Choose Beijing Yuhen Machinery as Your Grinding Machine Supplier
(1) Complete eight-series grinder product line: Centerless / Cylindrical / Compound / Insert / Vertical / Crankshaft / Camshaft / Thread grinder, one-stop grinding equipment supplier
(2) Independent R&D fluid simulation software: self-developed CNC control system, core technology independent intellectual property
(3) Customized service: Non-standard grinding machine, full automatic production line design according to workpiece drawing
(4) Global after-sales service: Overseas engineer video guidance, spare parts fast delivery
(5) Free service: Workpiece process simulation, free sample grinding test, professional technical proposal
Contact Details
Call To Action
If your factory is troubled by low efficiency and unstable precision of crankshaft/eccentric shaft processing, please send your workpiece drawings, batch demand and workshop layout to our email. Our senior grinding engineer will reply with customized solution and quotation within 24 working hours. We also support on-site factory inspection and machine running test for global customers.
Post time: Jul-30-2026
