CSL-B Impact Specimen Notch Electro-Hydraulic Broaching Machine

The CSL-B Impact Specimen Notch Electro-Hydraulic Broaching Machine is a specialized equipment designed for processing V-shaped and U-shaped notches on impact test specimens. It ensures reliable and consistent machining quality through a one-pass broaching process. Utilizing hydraulic transmission and electric control (solenoid valve-driven broach movement), the machine enables adjustable cutting speeds and automatic lubrication for blade cooling. The processed specimens fully comply with GB/T 229-2020 (Charpy Pendulum Impact Test Method for Metallic Materials). With structural modifications and key component replacements, the machine can also meet international standards such as ASTM E23-02a, EN 10045, and ISO 148.

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Key Features

High Durability Broach:

Made of W18Cr4V high-speed steel with exceptional hardness and wear resistance.
Each broach can process approximately 20,000 specimens.

Efficient Hydraulic System:

Dual-broach structure with hydraulic transmission for stable operation.
Processing time: ≤10 seconds per standard notch.

Precision Machining:

Notch depth: 2mm ± 0.05mm.
Sample positioning via end-face alignment, adjustable for non-standard lengths.

User-Friendly Design:

Electrically controlled speed regulation (2–3 m/min).
Automatic lubricating oil adjustable flow.

Technical Parameters

Parameter	Specification
Model	CSL-B / CSL-Y
Notch Types	Standard: V2 (2mm depth, 45°±2°, r=0.25mm±0.025mm); U2 (2mm depth, 2mm width, r=1mm±0.05mm); Custom U3/U5 available
Sample Dimensions	10×10 (7.5/5)×55 mm
Cutting Method/Lubrication	Electro-hydraulic / Automatic adjustable oil circulation
Broach Stroke	340±10 mm
Broach Material	W18Cr4V
Broaching Speed	2–3 m/min (adjustable)
Power Supply	380V, 0.37 kW
Dimensions (L×W×H)	650×500×1200 mm
Weight	180 kg

Applications

Preparation of V/U-notched specimens for Charpy impact tests (metals, alloys).
Quality control in materials testing laboratories.
Research and development in mechanical engineering and metallurgy.

Compliance Standards

GB/T 229-2020 (China)
ASTM E23-02a (USA)
EN 10045 (Europe)
ISO 148 (International)

Advantages

High Precision: Ensures notch geometry compliance with stringent standards.
Durability: Robust broach design for long-term use.
Adaptability: Configurable for global standards and custom requirements.

This machine is ideal for laboratories and industries requiring accurate and efficient impact specimen preparation.

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