The Hydraulic Vertical Rebar Bending Testing Machine uses a hydraulic system to drive the loading cylinder, applying controlled force to the specimen. The steel bar is bent around a specified mandrel until reaching the required angle, allowing operators to observe surface cracks, deformation, and structural integrity.

Hydraulic Vertical Rebar Bending Tester

Model: TDW-40L

I. Product Overview

The Hydraulic Vertical Rebar Bending Testing Machine is a professional testing equipment designed for evaluating the bending and reverse bending performance of steel reinforcement bars. It adopts a hydraulic power system to provide stable and reliable loading force, making it suitable for steel mills, construction companies, and material testing laboratories.

This machine is widely used to verify whether reinforcing steel meets required standards, ensuring structural safety and durability in civil engineering applications.

II. Applications

This equipment is mainly used for:

Cold bending test of reinforcing steel bars

Reverse bending performance test

Quality inspection of construction steel

Mechanical property evaluation in steel mills

Laboratory material testing and research

III. Applicable Standards

1. This testing machine is designed and manufactured in accordance with the following standards:

GB/T 232-2010 – Metallic materials bend test method

GB 1499.1-2008 – Hot-rolled smooth steel bars for concrete reinforcement

GB 1499.2-2018 – Hot-rolled ribbed steel bars for reinforced concrete

JGJ/T 27-2014 – Testing method for welded steel joints

2. International Reference Standards:

ISO 7438 – Metallic materials bend test

EN ISO 7438 – European bend test standard

ASTM A615 / A615M – Reinforcing steel bars specification

ISO 15630-1 – Test methods for reinforcing steel

IV. Product Features

Hydraulic vertical loading system with stable force output

High structural rigidity for heavy-duty testing

Wide specimen adaptability for different rebar sizes

Accurate bending angle control (0–180°)

Easy maintenance and long service life

Safe and reliable testing process

V. Technical Parameters

Maximum Test Force: 300 kN

Working Stroke: 300 mm

Maximum System Pressure: 25 MPa

Bending Angle Range: 0–180°

Rebar Diameter Range: Ø6–Ø50 mm

Oil Cylinder Loading Speed: approx. 120 mm/min

Bending Punch Diameter: Ø6–Ø160 mm

Support Roller Distance: 320 mm

VI. FAQ

1. What is a Hydraulic Vertical Rebar Bending Testing Machine used for?

A Hydraulic Vertical Rebar Bending Testing Machine is used to perform bending and reverse bending tests on reinforcing steel bars (rebars). It helps evaluate the bending performance, ductility, and surface crack resistance of steel reinforcement used in construction projects.

2. Can the machine perform reverse bending tests?

Yes. The equipment is designed for both bending tests and reverse bending tests, making it suitable for evaluating the ductility and durability of reinforcing steel according to applicable standards.

3. Is customization available?

Yes. We can provide customized bending dies, fixtures, hydraulic configurations, voltage options, and other modifications to meet different testing standards and customer requirements.