Photovoltaic Ceramic Nozzles are precision ceramic parts for gas distribution and chemical spraying in photovoltaic manufacturing. They are used in CVD and PECVD equipment, wet-etching systems, and related delivery assemblies where the nozzle is part of the process-fluid path.

Core Advantages

±0.01 mm Bore Accuracy

Bore diameter accuracy is ±0.01 mm. In a multi-nozzle gas or liquid distribution assembly, controlling each passage to this range reduces variation between nozzles and supports more consistent flow across the array.

Ra ≤0.2 μm Internal Surface

Internal surface roughness is Ra ≤0.2 μm. A smoother wall leaves fewer points for particles or chemical residue to collect inside narrow passages, which helps slow gradual restriction of the flow path.

Hot and Corrosive Process Envelope

Maximum working temperature is 1200°C or 1500°C depending on the ceramic selected, and the nozzles are specified to resist most acid and alkaline gases. Material choice can therefore be based on both operating temperature and the process medium.

Customization

Material

Material choices are 99% alumina and silicon carbide.

Length and Mounting Interface

Overall length is made to the customer drawing. Shoulders, flanges, mounting bores, and other locating details can be added to match the equipment interface.

Outlet and Flow Geometry

The approved drawing or prototype can define bore layout, outlet direction, spray geometry, and multi-hole configurations.

Specifications

Parameter	Specification
Material Types	99% Alumina, Silicon Carbide
Bore Diameter Accuracy	±0.01mm
Internal Surface Roughness (Ra)	≤0.2μm
Nozzle Length	Per customer drawing
Max. Working Temperature	1200℃ (Alumina) / 1500℃ (Silicon Carbide)
Corrosion Resistance	Resists most acid and alkaline gases

Quality Control

Bore size is checked after machining. The internal passage is also inspected for blockage, edge damage, and surface conditions before the nozzle moves to functional verification.

Flow testing confirms that the finished passage is open and delivers a consistent channel. External dimensions, mounting details, and sealing or locating faces are checked separately against the drawing.

Before packing, the nozzles are checked for appearance, accepted quantity, and cleanliness. Inspection records stay with the batch, third-party inspection can be arranged, and nozzle tips and precision faces are separated in the package.