Nozzle Body/Housing

Product Specifications

Technical details and manufacturing context for Nozzle Body/Housing

Definition

The nozzle body or housing is the main structural component of an injection head/nozzle assembly that contains and protects internal parts such as the nozzle tip, heating elements, and flow channels. It provides mechanical support, maintains alignment, and ensures proper sealing and thermal management during material injection processes. This component is typically manufactured from tool steel, stainless steel, or hardened alloy steel, offering the necessary strength and durability for demanding industrial environments. The nozzle body is designed to withstand high pressures and temperatures, ensuring reliable operation in applications such as plastic injection molding, die casting, or fluid dispensing. Its precise machining and surface finish are critical for achieving consistent flow and sealing performance. The body's internal geometry defines the flow path and influences the spray pattern or injection characteristics. It also serves as a mounting interface for other components, such as nozzles, heaters, and sensors, and must maintain tight tolerances to ensure proper alignment. The nozzle body is available in various sizes and configurations to match different pipe or tube dimensions, with nominal diameters ranging from 15 to 60 mm per ISO 6708. Operating pressure ratings typically range from 1.0 to 1.6 MPa, and operating temperatures span from -40°C to 85°C, limited by seal materials. Surface roughness is specified as Ra 0.8–1.6 μm per ISO 1302, and concentricity is held to ≤0.05 mm per ISO 1101 to ensure even spray patterns. Material hardness for stainless steel grades is typically 28–32 HRC per ASTM E18. Weight varies from 0.5 to 2.5 kg depending on size and material. Corrosion resistance is verified by salt spray testing per ISO 9227, with a minimum of 500 hours. Thread tolerance is specified as 6g–6H per ISO 965 to ensure leak-free connections. These parameters serve as reference ranges for selection and verification; actual values must be confirmed with the manufacturer for the specific model and application.

Working Principle

The nozzle body serves as a rigid enclosure that maintains the precise positioning of internal components while withstanding high pressures and temperatures during material injection. It provides a sealed environment for controlled material flow and heat transfer. The body's structural integrity ensures that internal parts remain aligned, preventing leakage and ensuring consistent performance. Its design accommodates thermal expansion and contraction, and its surface finish and tolerances directly affect sealing and flow characteristics. The body also acts as a heat sink or insulator, depending on the application, to manage temperature distribution. By maintaining the correct geometry, the nozzle body ensures that the material is directed accurately and that the spray pattern or injection profile is uniform.

Common Materials

Tool steel, Stainless steel, Hardened alloy steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	15–60 mm	Matches pipe/tube sizeISO 6708
Operating Pressure	1.0–1.6 MPa	Below 1.0 MPa seat load insufficientISO 5208
Operating Temperature	-40–85 °C	Seal material limits
Surface Roughness	Ra 0.8–1.6 μm	Affects sealing and flowISO 1302
Concentricity	≤0.05 mm	Ensures even spray patternISO 1101
Material Hardness	28–32 HRC	For stainless steel gradesASTM E18
Weight	0.5–2.5 kg	Depends on size and material
Corrosion Resistance	≥500 h	Salt spray test per standardISO 9227
Thread Tolerance	6g–6H	Ensures leak-free connectionISO 965

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

Components / BOM

Mounting Flange Part
Provides secure attachment to the injection machine

Material: Hardened steel
Heating Zone Housing Part
Encloses and protects heating elements

Material: Heat-resistant alloy
Nozzle Tip Seat Part
Precisely locates and seals the nozzle tip

Material: Wear-resistant steel
Cooling Channel Part
Facilitates temperature control through coolant circulation

Material: Corrosion-resistant alloy

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Injection Head/Nozzle

View system integration details

Outlet Nozzle/Dispense Head

View system integration details

Manufacturers of Nozzle Body/Housing

Manufacturer profiles associated with Nozzle Body/Housing.

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Frequently Asked Questions

What materials are commonly used for nozzle bodies?

Common materials include tool steel, stainless steel, and hardened alloy steel. The choice depends on the application's pressure, temperature, and corrosion requirements.

What is the typical operating pressure range?

The operating pressure range is typically 1.0 to 1.6 MPa. However, the actual allowable pressure depends on the specific design and material.

How is surface roughness specified?

Surface roughness is specified as Ra 0.8–1.6 μm per ISO 1302. This affects sealing and flow characteristics.

What standards apply to the nozzle body?

Relevant standards include ISO 6708 for nominal diameter, ISO 1302 for surface roughness, ISO 1101 for concentricity, ASTM E18 for hardness, ISO 9227 for corrosion resistance, and ISO 965 for thread tolerance. Always verify compliance with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10,000 psi
flow rate:	0.5 to 50 GPM
temperature:	-40°C to 200°C
slurry concentration:	Up to 40% solids by weight

Product Specifications

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