Ultra Precision Ground Rack
It is specifically engineered for advanced CNC machinery and automation systems where standard milled racks cannot maintain accuracy, consistency, and smooth motion under extended travel conditions.
Product Overview
Ruixin Ultra Precision Ground Rack is a high-performance linear transmission system designed for precision motion applications requiring stable positioning over long stroke distances and high dynamic loads.
It is specifically engineered for advanced CNC machinery and automation systems where standard milled racks cannot maintain accuracy, consistency, and smooth motion under extended travel conditions.
Technical Specifications
|
Item |
Specification |
|
Product Name |
Ultra Precision Ground Rack |
|
Material |
42CrMo / 40Cr / C45 / Stainless Steel |
|
Manufacturing Process |
CNC grinding + heat treatment |
|
Module Range |
M1.5 – M12 |
|
Length per Piece |
500 / 1000 / 2000 / 3000 mm |
|
Tooth Type |
Straight / Helical (optional) |
|
Standards |
DIN / ISO / AGMA equivalent |
|
Surface Treatment |
Ground / hardened / anti-rust |
Precision Performance Data
|
Parameter |
Specification |
|
Precision Grade |
DIN 6 – DIN 7 |
|
Cumulative Pitch Error |
≤ ±0.02 mm / 1000 mm |
|
Surface Roughness |
Ra 0.8 – 1.6 μm |
|
Backlash Compatibility |
≤ 0.02 mm (with matched pinion) |
|
Hardness |
HRC 50–60 |
|
Straightness |
High-precision ground controlled |
|
Tooth Accuracy |
Full-length grinding consistency |
Key Advantages
Ultra-Precision CNC Grinding Technology
Every single tooth is finished using state-of-the-art CNC gear grinding machinery. This achieves highly consistent tooth geometry across the full length of the rack, guaranteeing minimal individual pitch error and flawless gear-meshing.
High Repeatability for Multi-Meter Travel
Designed for modular expansion, our racks maintain stable positioning and a minimal cumulative error curve even across linear axes extending dozens of meters.
Hardened & Stress-Relieved Surface Treatments
We offer precision Carburizing & Quenching or Induction Hardening options. Followed by tempering stabilization, this processing locks in an HRC 50–60 surface layer while maintaining core toughness to resist heavy shock loads.
Precision-Ground Splice Joints for Seamless Extension
For long-stroke gantry systems, our racks feature custom-engineered ground end-joints. This allows multiple pieces to be butt-matched seamlessly without pitch interruption at the joints, ensuring unlimited travel length.
Application Industries
CNC Machine Tools: Vertical/Horizontal machining centers, portal milling machines, high-precision router systems.
Industrial Automation: High-speed production line positioning, multi-axis gantry robots, heavy linear transfer modules.
Robotic Systems: 7th-axis robotic tracks, heavy payload gantry systems.
High-Tech Equipment: High-power fiber laser cutters, semiconductor handling systems, precision inspection machinery.
Material & Selection Guide
Material Selection Chart
• 42CrMo (Alloy Steel): Recommended for high-load CNC gantry systems, heavy robotics, and high-fatigue environments.
• 40Cr / C45 (Carbon Steel): Ideal for balanced industrial automation applications and cost-effective precision machinery.
• Stainless Steel (304/316): Engineered for cleanrooms, medical automation, and corrosive/marine environments.
Sizing Guidelines
• M1.5 – M2.5: Light automation, pick-and-place systems, and small CNC routers.
• M3 – M5: Standard industrial CNC machinery, laser cutting beds, and 3-axis machining centers.
• M6 – M12: Heavy-duty gantry cranes, heavy machining centers, and aerospace composite tooling platforms.
Rigorous Quality Control System
Ruixin operates under a strict ISO 9001:2015 certified quality management system. Every rack is subjected to a comprehensive inspection protocol before global dispatch:
• CMM Pitch Accuracy Measurement: Verification of full-length cumulative and single-pitch errors.
• Tooth Profile & Lead Inspection: Ensures perfect involute geometry and contact ratio.
• Hardness Profile Testing: NDT (Non-Destructive) verification of HRC depth and consistency.
• Laser Interferometer Alignment: Controls straightness and parallelism tolerances.
• Full-Length Assembly Test: Pre-matching of splice joints to guarantee smooth field installation.
Full OEM & Custom Manufacturing Capabilities
Ruixin supports complete tailored engineering solutions for specialized industrial projects:
Custom Geometric Modules: M1 through M12+ and customized pitches.
Extended Single-Piece Lengths: Single-piece ground racks up to 6000 mm+.
Custom Helix Angles: Tailored to match your existing pinion designs.
Branding & Traceability: In-line laser marking for part numbers, batch codes, and OEM branding.
Distributor Packaging: Tailored retail/wholesale packaging solutions for industrial distributors.
Heavy-Duty Packaging & Global Logistics
Engineered to withstand long-distance maritime transit and variable humidity:
Corrosion Protection: Coated with heavy-duty anti-rust oil (rated for 6+ months of ocean freight protection).
Moisture Barrier: Vacuum-sealed in heavy VCI (Vapor Corrosion Inhibitor) plastic wrap.
Mechanical Protection: Shipped inside export-grade, reinforced fumigated wooden cases with individual dividers to prevent tooth-to-tooth contact.
Assembly-Ready Labeling: Clear exterior marking matching your PO and part tracking numbers.
Delivery Terms: EXW, FOB, CIF, DDU / Expedited production scheduling for urgent OEM lines.
Why Global OEMs Choose Ruixin
Stable Batch-to-Batch Consistency: Every rack is controlled under strict process parameters to ensure identical geometry across production batches.
OEM Replacement Compatibility: Future replacement parts match original installation without recalibration.
Controlled Grinding Process: Multi-stage precision grinding ensures uniform tooth profile across full length.
Long-Term Supply Reliability: Stable production system supports repeat orders for long lifecycle machine projects.
Export Experience for Industrial Projects: Trusted supply model for machine builders and distributors worldwide.
Frequently Asked Questions
Q: What level of precision can Ruixin Ultra Precision Ground Rack achieve?
A: Our ground racks are typically manufactured to DIN 6–DIN 7 equivalent precision levels, with cumulative pitch error controlled within tight tolerances depending on module size and application requirements.
Q: Can this rack be used in long-stroke gantry systems?
A: Yes. The product is specifically designed for long travel gantry systems. It supports modular extension with precision jointing, making it suitable for multi-meter CNC and automation equipment.
Q: How do I choose the correct module size for my machine?
A: Module selection depends on load and machine type:
Small automation systems: M1.5–M2.5
Standard CNC machines: M3–M5
Heavy-duty gantry systems: M6–M12
We can also provide engineering recommendations based on your drawings.
Q: What pinion should be used with your ground rack?
A: We recommend using precision-hardened pinions matched to the rack module. For optimal performance, backlash-controlled or anti-backlash pinion systems are preferred in high-precision applications.
Q: What materials are available and how do they affect performance?
A: 42CrMo: Best for heavy-load and high-performance CNC systems
40Cr: Balanced mechanical performance
C45: Cost-effective industrial applications
Stainless steel: Corrosion-resistant environments
Material selection directly affects wear resistance and service life.
Q: Can you guarantee consistent quality in mass production?
A: Yes. Ruixin implements strict batch consistency control, including CMM inspection, hardness testing, and full-length accuracy measurement to ensure stable performance across large production volumes.
Q: Do you support custom drawings and OEM production?
A: Yes. We support full OEM/ODM customization including module design, length, material, hardness, tooth type, and packaging. We can also produce according to customer technical drawings and engineering requirements.
Request Engineering Support
Get Professional Support in 24 Hours
Send us:
• Technical drawings
• Machine application details
• Required accuracy level
We will provide:
• Engineering recommendation
• Rack selection guidance
• Technical drawing support
• Fast quotation
Contact Ruixin for precision motion system solutions.
Hot Tags: ultra precision ground rack, China ultra precision ground rack manufacturers, suppliers, factory
Previous
Hardened Ground RackYou Might Also Like
Send Inquiry