Product Parameter Specifications
Parameter | Details |
Product Name | DIN 6325 Hardened Cylindrical Dowel Pin |
Standard | DIN 6325 (Equivalent to ISO 8734) |
Tolerance Grade | Precision m6 Ground Tolerance |
Material | 100Cr6 Bearing Steel, Alloy Steel, 304/316 Stainless Steel |
Hardness | HRC 58–62 Full Hardened |
Diameter Range | Φ2mm–Φ30mm Full Sizes In Stock |
Length Range | 6mm–200mm, Custom Length Available |
Structure | Full precision grinding, double-end chamfer, high concentricity |
Surface Finish | Plain ground, black oxide, zinc plated, dacromet |
Function | Precision positioning, anti-offset, auxiliary shear resistance |
Applications | Precision molds, automation equipment, machine tool jigs, machinery fixtures |
Quality Control | Full inspection on dimension, roundness, concentricity, hardness and surface finish |
Supply Capacity | Sufficient stock, bulk order support and non-standard customization |
Core Product Advantages
Precision m6 Tolerance for Stable Positioning
Adopting professional precision grinding process to maintain stable m6 tolerance. Matched with standard H7 holes, it forms reliable transition or interference fit, effectively reducing assembly gaps and component misalignment in most precision mechanical assembly scenarios.
Made of high-quality bearing steel and alloy steel with full quenching treatment, reaching HRC 58–62 hardness. The compact surface structure provides good wear resistance and shear strength under normal cyclic working conditions, slowing down deformation and wear and extending structural service life.
Chamfered Design for Easy Installation
Standard double-end chamfer enables smooth insertion during assembly, lowering pressing resistance and avoiding hole wall scratching or jamming. It adapts well to batch installation and repeated debugging scenarios to improve on-site working efficiency.
High Concentricity & Consistent Accuracy
Full-body precision grinding ensures excellent straightness and concentricity. Multiple pins applied in one set of tooling can maintain unified reference, effectively reducing cumulative assembly errors and ensuring overall structural precision.
Diversified Materials & Wide Adaptability
Available in carbon steel, bearing steel and stainless steel with multiple surface treatments. It can adapt to conventional indoor environments, humid conditions and slightly corrosive scenarios, balancing precision positioning requirements and basic anti-rust performance for versatile industrial use.
Production Process
Material Selection: High-quality bearing steel, alloy steel and stainless steel with stable mechanical properties for heat treatment and precision grinding.
Precision Cutting: CNC fixed-length cutting ensures flat end face and accurate dimension.
Double-end Chamfering: Standard chamfer processing for smooth assembly guidance.
Quenching & Tempering: Integral hardening and tempering stabilize hardness and structural toughness.
Full-body Precision Grinding: Multi-pass grinding controls tolerance, roundness and concentricity strictly.
Surface Anti-corrosion Treatment: Black oxide, zinc plating and other finishes according to application demands.
Final Inspection & Sorting: Strict batch inspection to stabilize consistent product quality.
Application Industries
Precision Mold Industry: Positioning for plastic molds, stamping molds and die-cast molds to guarantee mold closing accuracy.
Automation Equipment: Positioning and fixing of jigs, base frames and precision modules to reduce running deviation.
Machine Tool Tooling: Reference positioning for machining center fixtures and machine tool auxiliary components.
Engineering Machinery: Auxiliary positioning and shear limit for mechanical hinge and heavy-load connection points.
Precision Instrument Equipment: High-precision assembly, anti-offset and limit positioning for miniature precision devices.
Why Choose Our DIN 6325 Dowel Pins
We specialize in manufacturing DIN 6325 hardened cylindrical dowel pins, fully compliant with German standards and equivalent ISO 8734 specifications. Our products feature accurate tolerance, stable hardness and smooth surface finish with good batch consistency. Sufficient stock supports fast bulk delivery, and non-standard customized processing is available. We can provide complete material certificates and performance test reports, providing reliable and cost-effective precision positioning solutions for global mold, tooling and precision equipment projects.
Installation & Usage Notes
1. Reasonable Hole Tolerance Matching: Recommended to match with H7 tolerance holes for stable interference or transition fit, avoiding poor positioning caused by excessive gap or over-tight assembly.
2. Standard Press-fitting Operation: Use static pressure tool for uniform installation. Violent knocking is not advised to prevent pin bending and hole deformation.
3. Clean Assembly Surface: Remove iron scraps, oil and impurities before installation to reduce wear and assembly defects.
4. Material & Finish Selection: Choose stainless steel or anti-corrosion treated pins for humid and corrosive environments; carbon steel hardened pins are suitable for conventional indoor scenarios for cost control.
5. Regular Inspection Under Cyclic Load: Check positioning status periodically for equipment under high vibration and alternating load, and replace worn parts timely to maintain assembly accuracy.
For high-precision DIN 6325 cylindrical dowel pins and customized fastener solutions, please contact us for detailed parameters and professional quotations.
