Fully Automatic Bolt Torque Tester for Accurate Force and Torque Measurement in High Strength Bolts Testing

📌 Bolt Torque Tester: Fully Automatic LS-500B Overview

Bolt Torque Tester is an essential tool for validating the tightening force and performance of high-strength bolts used in structural projects. The Fully Automatic Bolt Torque Tester (LS-500B), developed by our factory, supports M16 to M30 bolts and complies fully with GB50205-2020 « Steel Structure Engineering Quality Control Regulation. » This system precisely measures tightening torque and preload, including clamping force, torque accuracy, and axial consistency.

Equipped with a smart display and automatic control system, it supports real-time monitoring, automatic resetting, and instant report printing—greatly enhancing operational efficiency. With high-precision sensors and zero manual intervention, the LS-500B Bolt Torque Tester delivers consistent results in quality control, industrial use, and engineering applications.

The system’s core advantages include rapid execution, auto data logging, and built-in report generation. It eliminates human error and improves repeatability in bolt inspections. Advanced sensors enable quick preload evaluation with superior accuracy.

Whether for verifying assembly strength, validating design conditions, or ensuring structural safety, the Bolt Torque Tester offers dependable support across infrastructure and manufacturing fields.

📌 Product Details & Operation Display

📷 Product – Image 1

📷 Product – Image 2

📷 Product – Image 3

📷 Product – Image 4

⚙️ Product Features

• Stable DC or AC supply with adjustable voltage/current
• Auto load control based on preset curve
• Overload, undervoltage, and surge protection
• Real-time monitoring with alarm system
• Low power consumption, eco-friendly design
• Easy upgrade and modular component support

📊 Technical Specifications

• Output Type: Resistive, Inductive + Capacitive
• Voltage Output: 0~275V
• Current Output: 1~63A
• Counter: 0~999999
• Power Supply: AC220V/50Hz/30A
• Capacitor Load A: 70uF + 140uF
• Load B: 7.3uF capacitor + 0.5H inductor
• Power Factor: 0.6–0.98 (above 16A) / 0.3–0.98 (below 16A)
• Dimensions: 2100×600×1450 mm
• Weight: 500 kg

💡 Why Choose Us?

Tianchang Tongda Instruments Co., Ltd. is a trusted test equipment manufacturer in China,
with over 20 years of experience in industrial testing and quality control.

We specialize in high-precision equipment for pipes, steel structures, rebar, cables, insulation materials, and more.
Our instruments are widely used in laboratories, manufacturing plants, universities, and third-party inspection agencies.

As an ISO-certified company, we ensure all products meet international standards such as ISO, ASTM, and EN.
From installation to remote support, we deliver reliable service and lasting technical assistance.

Our sales network covers all provinces in China and continues to grow globally.
Clients in Southeast Asia, the Middle East, and Europe rely on us for accurate and efficient testing solutions.

✅	20+ years of manufacturing experience
✅	ISO, ASTM, EN standard compliance
✅	Used by top labs and research centers
✅	Full after-sales support and fast delivery
✅	Customized testing solutions for your needs