Custom Nose Piece / Guide Tip For Rolling Mill

The Custom Nose Piece / Guide Tip (also referred to as Delivery Guide Tip, Guide Nose, or Stripper Guide / Nose Piece) is a critical precision component within rolling mill guide systems. This product is specifically engineered for metallurgical rolling production lines, primarily installed at the exit or entry points of rolling mill stands (e.g., Mill Stand 21 / 27 WW320). It functions to precisely guide workpieces (such as strip steel or section steel) smoothly and accurately through the rolling rolls at high speeds, while also providing essential stripping and anti-winding protection for the rolling process.

 

 

Working Principle

Precision Positioning & Guidance:

Utilizing the precision tip (Guide Tip) and internal channel structure, it ensures dual-sided clamping and directional guidance for hot workpieces entering or exiting the rolls at high speeds, preventing lateral deviation.

 

Hot Rolling Stripping Function:

Operating as a Stripper Guide, the closely fitted nose structure effectively strips workpieces from the roll surface as they exit, preventing adhesion and winding accidents.

 

Dynamic Thermal Load Bearing:

Designed to withstand the significant mechanical impact, frictional forces, and high-temperature radiation generated during high-speed rolling, maintaining dimensional stability under prolonged operation.

 

Technical Specifications &

 

Attribute No.	Technical Attribute	Specification
1	Product Name	Custom Nose Piece / Guide Tip for Rolling Mill
2	Application Mill Stand	Mill Stand 21 / 27 (WW320) replacement
3	Material Standard	Alloy Structural Steel 35CrMo
4	Net Weight	Approx. 0.76 kg
5	Key Dimensions (L×W×H)	99 mm × 60.5 mm × 117 mm
6	Surface Roughness	Ra 12.5 (Precision Finished)
7	Manufacturing Process	CNC Milling / Precision Machining / Anti-rust Treatment
8	Tolerance Standard	DIN ISO 2768-fH
9	Quality Inspection	100% Dimensional Inspection, Chemical & Hardness Analysis
10	Hardness Range	280 - 320 HBW (After Heat Treatment)
11	Surface Protection	Anti-rust Oil Coating + Vacuum Sealed
12	Packaging Type	Independent Export Carton & Wooden Pallet
13	Applicable Rolling Material	Hot Rolled Strip Steel / Section Steel
14	Design Life / Maintenance Cycle	Regular inspection per shift, replaced based on wear status

 

Material Composition

 

Element	Composition (%)	Metallurgical Role
Carbon (C)	0.35	Provides basic strength and hardness
Silicon (Si)	0.28	Deoxidation and ferrite strengthening
Manganese (Mn)	0.58	Improves hardenability and tensile strength
Phosphorus (P)	0.03	Controls impurities for toughness
Sulfur (S)	0.028	Controls impurities to prevent hot shortness
Chromium (Cr)	1.08	Increases wear resistance, oxidation resistance, and hardenability
Molybdenum (Mo)	0.18	Refines grains, increases high-temp strength and creep resistance

 

Five Common Product Issues & Solutions

1: Rapid Tip Wear (Guide Tip Wear)

Solution: Opt for high-hardenability 35CrMo alloy structural steel and employ rigorous heat treatment processes to enhance surface hardness, extending the tip's service life.

 

2: Thermal Deformation during High-Speed Rolling

Solution: Precise control of critical wall thickness and geometric symmetry (following DIN ISO 2768-fH standards) ensures uniform thermal stress distribution, preventing warping.

 

3: Mounting Hole Tolerance Deviations Causing Assembly Difficulties

Solution: Utilize high-precision CNC machining centers for boring mounting holes, with each piece verified against drawings before shipment to ensure a perfect fit.

 

4: Micro-cracks or Manufacturing Defects

Solution: Implement stringent non-destructive testing (NDT) and pre-shipment inspection protocols; all products are delivered with comprehensive inspection reports.

 

5: Oxidation/Rusting During Storage or Transport

Solution: Apply an anti-rust oil coating combined with independent vacuum-sealed packaging to isolate the product from moisture, ensuring it arrives in perfect condition.

 

Replacement Brands & Performance

Performance: This product serves as a seamless, high-precision replacement for original equipment (e.g., OEM parts for SMS Demag, Danieli production lines).

 

Outcome: Achieves 1:1 dimensional fit, with wear resistance and impact strength meeting or exceeding original standards, while significantly reducing spare parts procurement costs and lead times.

 

Manufacturing Considerations

Blank & Metallurgical Control:

Ensure uniform internal grains of the 35CrMo alloy steel, avoiding metallurgical defects such as shrinkage cavities or inclusions.

 

Complex Contours & Radius Precision:

Strictly maintain the smooth transition of multiple complex radii to prevent stress concentration.

 

Critical Dimensional Tolerance Control:

Maintain strict precision on critical dimensions like base hole spacing and slot width using high-precision CNC machining.

 

Surface Roughness:

Ensure working surfaces and guide areas strictly adhere to the Ra 12.5 finish requirement to minimize friction during workpiece passage.

 

 

Quality Assurance

100% Dimensional Inspection:

Every unit undergoes strict verification using calipers, micrometers, and CMM to ensure compliance with the drawing.

 

Traceable Material Analysis:

Each delivery includes a detailed material composition report, including precise spectral analysis of C, Si, Mn, Cr, Mo, etc.

 

Three-Level Inspection System:

Adheres to strict self-inspection, cross-inspection, and final inspection by qualified quality controllers.

 

FAQ

1: Can this product be customized for specific mill stands (e.g., Mill Stand 21/27)?

Answer: Yes. We fully support customized production based on your equipment drawings to ensure perfect compatibility with your production line.

 

2: What material is used for the Guide Tip? Is it resistant to high temperatures and wear?

Answer: We use high-quality 35CrMo alloy structural steel, which offers excellent hardenability, high-temperature strength, and resistance to mechanical impact, ideal for harsh hot rolling environments.

 

3: Can you provide a quality inspection report when ordering?

Answer: Absolutely. Each batch of products is delivered with a comprehensive Product Inspection Report, including actual dimensional measurement data and chemical analysis results.

 

4: What is the typical lead time for this Delivery Guide Tip?

Answer: For standard drawings, we utilize our mature production chain to provide highly competitive and fast delivery services without compromising quality. 80-110days

 

5: How can I ensure the spare parts will be directly interchangeable?

Answer: We strictly follow DIN ISO 2768-fH tolerances during CNC machining and perform full inspections on critical mating dimensions (e.g., hole spacing, center slot width) before shipment to ensure 100% seamless replacement.

 

Contact Us

If you are looking for high-quality, cost-effective Custom Nose Piece / Guide Tip rolling mill spare parts, or require precision customized manufacturing based on specific drawings, please feel free to contact us! We are ready to provide professional engineering support, detailed proposals, and premium service. We look forward to cooperating with you! Thank you.

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