Die Ring Body: Temperature Range 20-150°C, Height 50-150 mm

Component Specifications

Definition

The Die Ring Body is a critical cylindrical component in high-durability feed pellet die rings, designed to house and support the die plate containing precision-machined holes through which feed material is extruded under high pressure to form uniform pellets. It provides structural integrity, wear resistance, and thermal stability during continuous operation in feed manufacturing systems.

Working Principle

The die ring body functions as a pressure vessel and support structure that contains the die plate. During pelletizing, feed material is forced through the die plate holes by rollers, with the body maintaining alignment, distributing mechanical stress, and dissipating heat generated by friction to ensure consistent pellet quality and prevent deformation.

Materials

High-chromium alloy steel (e.g., D2, H13) or tungsten carbide composite, heat-treated to HRC 58-62 for enhanced hardness and abrasion resistance. Surface treatments may include nitriding or hard chrome plating to reduce wear.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Height	50-150 mm
Weight	15-120 kg
Hardness	HRC 58-62
Inner Diameter	250-750 mm
Outer Diameter	300-800 mm
Surface Finish	Ra 0.8-1.6 μm
Temperature Range	20-150°C
Operating Pressure	Up to 300 MPa

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, DIN 8580

Parent Products

This component is used in the following industrial products

High-Durability Feed Pellet Die Ring

This precision-machined annular component forms the extrusion die in pellet mill systems used for manufacturing prepared animal feeds.

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Engineering Analysis

Risks & Mitigation

Fatigue cracking from cyclic stress
Thermal deformation due to overheating
Abrasive wear from feed materials
Misalignment causing uneven pellet formation

FMEA Triads

Trigger: Insufficient hardness or material fatigue
Failure: Cracking or fracture under high pressure
Mitigation: Use high-grade alloy steel with proper heat treatment and implement regular non-destructive testing (e.g., ultrasonic inspection).

Trigger: Poor lubrication or cooling
Failure: Overheating leading to thermal expansion and misalignment
Mitigation: Maintain adequate cooling systems and apply high-temperature lubricants; monitor operating temperatures.

Trigger: Abrasive feed ingredients (e.g., minerals)
Failure: Excessive wear reducing component lifespan
Mitigation: Apply wear-resistant coatings (e.g., tungsten carbide) and optimize feed formulation to minimize abrasiveness.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm for diameter and concentricity, ±0.1 mm for flatness

Test Method

Dimensional verification with CMM, hardness testing via Rockwell scale, pressure testing up to 1.5x operating pressure, and ultrasonic inspection for internal defects.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Die Ring Body

Manufacturer profiles associated with Die Ring Body.

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Frequently Asked Questions

What is the primary function of a die ring body in feed pellet production?

It provides structural support and housing for the die plate, ensuring alignment, pressure containment, and heat dissipation during the pellet extrusion process.

How often should a die ring body be inspected for wear?

Inspect every 500-1000 operating hours, depending on material abrasiveness and production intensity, to check for cracks, deformation, or surface wear.

Can die ring bodies be refurbished or must they be replaced?

They can often be refurbished through machining and re-hardening if wear is within tolerance limits, but severe damage typically requires replacement.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Die Ring Body