JB-B Series Semi-Automatic Impact Testing Machine

The JB-B Series Impact Testing Machine is designed to determine the impact resistance of metallic materials under dynamic loads, enabling the evaluation of material properties under dynamic conditions. Developed in accordance with the national standard GB/T 3808-2018 (Verification of Pendulum Impact Testing Machines) and GB/T 229-2020 (Charpy Pendulum Impact Test Method for Metallic Materials), the machine tests standard specimens with a cross-section of 10×10mm. With high impact energy capacity, it is primarily used for testing ferrous metals with high impact toughness, such as steel and its alloys.

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Product Details

The JB-B model operates as an electrically controlled semi-automatic impact testing machine. It calculates the energy absorbed by the specimen by measuring the difference between the potential energy of the pendulum before impact and the residual energy after impact, displayed on a dial gauge. After fracturing the specimen, the pendulum automatically swings back using residual energy, preparing for the next impact test. This feature makes it ideal for laboratories requiring continuous impact tests and industries like metallurgy and machinery manufacturing that conduct large-scale impact testing.

Key Features

1. Electrical Control System Advantages

Integrated circuit board for simplified maintenance.
Brush clutch replaces traditional clutches, enabling automatic pendulum positioning and reducing gear wear, thereby extending system lifespan.

2. Mechanical Structural Advantages

Advanced host structure with redesigned base and column packaging for durability, aesthetics, and stability.
High-rigidity pendulum rod minimizes post-impact vibration.
Standard worm gear reducer ensures high efficiency and eliminates transmission failures.
Modular structure reduces machining and assembly errors, improving accuracy.
Photoelectric proximity switch replaces mechanical limit switches, enhancing stability and maintaining a consistent pre-lift angle.

3. Safety Advantages

Semi-enclosed protective cover made of high-toughness material encloses the pendulum’s trajectory and prevents fractured specimens from splashing, ensuring operator safety.

Technical Parameters

Parameter	Model JB-B-300J	Model JB-B-500J
Impact Energy	300J	500J
Impact Energy Range	0–150J / 0–300J	0–250J / 0–500J
Angle Resolution	≤0.1°	≤0.1°
Dial Graduation Value	0.5J / 1J	2.5J / 5J
Pendulum Force (Impact Constant)	0–150J: M=80.3848 N·m 0–300J: M=160.7695 N·m	0–250J: M=133.9746 N·m 0–500J: M=267.9492 N·m
Pendulum Pre-Lift Angle	150°	150°
Distance from Rotation Center to Impact Point	750mm	800mm
Impact Velocity	5.2 m/s	5.4 m/s
Specimen Support Span	40mm	40mm
Anvil Fillet Radius	R1–1.5mm	R1–1.5mm
Striker Edge Radius	R2–2.5mm	R2–2.5mm
Specimen Dimensions	55×10(7.5/5)×10mm	55×10(7.5/5)×10mm
Net Weight	450kg	550kg
Overall Dimensions (L×W×H)	2124×600×1340mm	2300×600×1400mm
Power Supply	Three-phase four-wire system, 50Hz, 380V, 500W (main motor: 370W)

Applications

Impact toughness testing of ferrous metals (e.g., steel, iron alloys).
Quality control in metallurgy, machinery manufacturing, and construction.
Research and development in material science and engineering.

Compliance Standards

GB/T 3808-2018 (Pendulum Impact Testing Machine Verification)
GB/T 229-2020 (Charpy Impact Test for Metallic Materials)

Advantages Summary

Efficiency: Automatic pendulum reset for continuous testing.
Precision: High-rigidity structure and photoelectric sensors ensure accurate results.
Safety: Semi-enclosed design protects operators from flying fragments.
Durability: Modular components and brush clutch reduce maintenance needs.

This machine is ideal for industries requiring reliable, high-volume impact testing with minimal operator intervention.

Product Tag:

JB-B Series Semi-Automatic Impact Testing Machine

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