DC53 Steel Hot Runner Nozzle Tips | High-Wear Gate Bushings for Molds

Product Overview

Senlan Precision manufactures DC53 gate bushing nozzle tips for hot runner systems, produced strictly to customer drawings (Built-to-Print). These components are designed to maintain gate accuracy, thermal stability, and wear resistance under continuous injection conditions. Precision machining and controlled heat treatment support consistent melt flow and reliable performance in multi-cavity moulds.

Key Features & Advantages

• Material: DC53 cold-work die steel (as specified) with balanced toughness and wear resistance

• Gate accuracy: Tight control of orifice diameter, concentricity, and sealing interfaces

• Thermal stability: Suitable for hot runner temperature cycles

• Wear & erosion resistance: Optimized for long production runs with abrasive melts

• Interchangeability: Consistent dimensions for multi-cavity systems

• OEM / Built-to-Print: Manufactured exactly per drawings and tolerance callouts

Applications / Industry Use

• Hot runner injection mould systems

• PET preform and cap moulds

• Packaging moulds requiring stable gating

• Medical and precision plastic moulding where gate control is critical

Mold Structure & Design Description

Gate bushing nozzle tips are installed at the interface between the hot runner and cavity. Their geometry governs melt entry, sealing, and heat transfer. DC53 steel provides a stable microstructure after heat treatment, enabling precise machining of the gate orifice and reliable contact with mating components, reducing leakage and gate wear during high-cycle operation.

Manufacturing Capability & CNC Machining

• Equipment: High-precision CNC platforms from MAKINO (Japan) and HARDINGE (USA)

• Processes: CNC turning, milling, precision grinding, EDM (if required), fine polishing

• Tolerance capability: Typically ±0.002–0.005 mm on critical gate features

• Surface finish: Controlled Ra per drawing for gate quality and sealing

• Inspection: Orifice size, concentricity, flatness, and interface geometry

Custom Development / OEM Workflow

1. Drawing review – Gate size, hot runner interface, tolerances

2. Material confirmation – DC53 grade and heat treatment specification

3. Process planning – Machining route and inspection plan

4. Precision manufacturing – CNC production with in-process control

5. Final inspection & delivery – Measurement records and export packaging

Quality Control & Export Experience

• Material traceability and incoming inspection

• In-process dimensional verification

• Final inspection with documented measurements

• Stable export supply for packaging and medical mould manufacturers

Related Products

• Gate bushings and nozzle tips in S136 / H13 / SKD61

• Hot runner compatible core and cavity inserts

• Precision core pins and sleeves

• Built-to-print mould spare parts for multi-cavity systems

FAQ (Technical & Purchasing)

Q1: Why choose DC53 for gate bushing nozzle tips?
DC53 offers a good balance of wear resistance and toughness, suitable for hot runner gating under repetitive thermal cycles.

Q2: Can these nozzle tips match existing hot runner brands or layouts?
Yes. All parts are produced strictly according to customer drawings to ensure compatibility.

Q3: Are these suitable for high-cavity moulds?
Yes. Dimensional consistency supports uniform performance across multi-cavity systems.

Q4: Do you support small batches or replacement parts?
Yes. Prototype, replacement, and serial production are supported.

Get a Quote

Send your drawings, hot runner interface details, material requirements, and tolerances. Senlan Precision will provide a technical review and quotation for DC53 gate bushing nozzle tips for injection mould applications.