Grinding Shot 0.4
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Grinding Shot 0.4

Grinding Shot is a highly specialized type of abrasive media used in mechanical surface finishing processes, most notably in shot blasting (wheelblast) and certain vibratory finishing operations. The 0.4mm designation refers to its nominal particle diameter, indicating a very fine, precise grade used for delicate yet effective material removal and surface preparation.

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Product Introduction

Grinding Shot 0.4mm is a precision-grade, angular abrasive media manufactured from high-purity fused aluminum oxide (Al₂O₃). Characterized by its fine grit size and sharp, friable particles, it is engineered for controlled micro-abrasion in surface finishing processes. This media is the optimal choice for applications requiring a balance of effective material removal and the preservation of fine part detail and dimensional accuracy.

characteristics of 0.4 mM Grinding shot：

Durability: Made from high-strength steel (e.g., high-manganese steel), it resists fracturing during use and can be recycled multiple times (reducing operational costs).

Balanced Properties: It has moderate hardness (typically 54–60 HRC) and good toughness, ensuring effective surface treatment without damaging workpiece substrates.

Efficiency: Its spherical shape provides consistent impact, enabling fast, uniform cleaning or finishing of complex surfaces (e.g., small components, intricate geometries).

Advantage of 0.4 mM Grinding shot:

1.High Cutting Efficiency: Its sharp angularity ensures aggressive yet fine-scale material removal.

2.Consistent Finish: Produces a uniform surface profile (Ra) with excellent repeatability.

3.Long Service Life: The friable nature of aluminum oxide promotes self-sharpening, extending media usability.

4.Detail-Safe: The 0.4mm size prevents lodging in intricate part geometries and minimizes unwanted wear on fine features.

Usage

1.Deburring: Removing tiny burrs from precision parts (e.g., small screws, electronic connectors).

2.Polishing: Creating a smooth, matte/shiny finish on delicate metal components.

3.Surface Cleaning: Removing light rust, oil, or sand residue from small workpieces.

4.Pre-Coating Prep: Enhancing surface roughness (slightly) to improve coating adhesion on tiny parts.

Applications

1.Polishing small metal parts

2.Removing light coatings/rust

3.Deburring precision components

4.Enhancing surface roughness for bonding/coating prep

Parameter	Specification
Product Name	0.4mm Grinding Shot
Material	Forged High-Manganese Steel / Cast Steel
Particle Size	0.4mm (±0.05mm tolerance)
Shape	Spherical
Hardness	54–60 HRC
Toughness	≥2.5 J/cm²
Density	~7.85 g/cm³
Recycling Times	10–20 cycles (depending on usage)
Applicable Equipment	Vibratory finishers, tumble barrels, centrifugal grinders
Typical Workpiece Type	Small/delicate metal components, electronic parts, precision fasteners