Product Description

The High-Strength Bolt Slip Coefficient Testing Machine is designed to evaluate the slip resistance and friction performance of high-strength bolted joints used in steel structures.

The equipment applies controlled tensile load to bolted specimens to determine the slip coefficient between connected steel plates, ensuring structural safety and compliance with engineering standards.

It is widely used in steel structure manufacturing, construction quality inspection, research laboratories, and engineering testing institutions.

Test Principle

The machine applies axial tensile force to a preloaded bolted joint specimen. When relative displacement between steel plates occurs, the slip load is recorded, and the slip coefficient is calculated based on the applied force and surface treatment conditions.

This data is essential for evaluating the friction performance and safety of high-strength bolted connections in structural engineering.

Application

This slip coefficient testing machine is suitable for:

• Steel structure bolt connections
• Bridge engineering fasteners
• High-strength friction-type bolted joints
• Construction steel frameworks
• Mechanical and structural testing laboratories

Technical Parameters

• Measuring range: 30 kN – 400 kN
• Voltage: 220V
• Power: 370 W
• Load resolution: ±0.1 kN
• Indication error: ±1.0 N
• Sensor quantity: 24 units
• Operating temperature: ≤35°C
• Relative humidity: ≤85% RH
• Overall dimensions: 550 × 450 × 1100 mm
• Weight: 60 kg

Key Features

• High-precision load measurement system
• Multi-sensor force detection for accurate slip identification
• Stable hydraulic/electromechanical loading system
• Real-time force and displacement monitoring
• Automatic slip coefficient calculation
• Safe overload protection system
• Easy operation with digital control interface

Product Advantages

• High accuracy slip coefficient measurement
• Stable loading performance for repeatable results
• Suitable for laboratory and engineering site quality control
• Supports standard-compliant testing procedures
• Compact structure with strong durability

Why Choose Our Equipment

We specialize in manufacturing professional structural testing equipment for steel construction and civil engineering applications. Our High-Strength Bolt Slip Coefficient Testing Machine is designed for accuracy, stability, and long-term reliability.

OEM customization is available, including:

• Load range adjustment
• Sensor configuration
• Control system language
• Data acquisition and export format

AQ

Q1: What does slip coefficient mean in bolted joints?
It represents the friction performance between connected steel plates under high-strength bolt preloading.

Q2: What materials can be tested?
Steel plates with high-strength friction-type bolted connections.

Q3: What standards does this equipment follow?
It can comply with GB/T, JGJ, ISO, and EN standards.

Q4: What is the load range of this machine?
The standard range is 30 kN to 400 kN, customizable upon request.