The machine is widely used in construction material testing laboratories, steel product manufacturers, quality inspection centers, and research institutions, making it an ideal solution for bending performance evaluation.The equipment is designed with a compact structure, stable operation, low noise, easy maintenance, and intuitive angle display.

Rebar Bend-Rebend Testing Machine

Model:TDSJ-40Q

I. Product Overview

The Fully Automatic Rebar Bend-Rebend Testing Machine is a dedicated testing equipment designed in accordance with GB/T 232-2010 “Metallic Materials — Bend Test Method”, used for performing cold bending and repeated bending tests on reinforcing steel bars and other ductile metal materials. The machine bends the specimen to a specified angle and allows operators to visually inspect whether cracks appear on the surface after testing. Special fixtures for square and irregular specimens can be customized upon request.

II. Reference Standards

GB/T 232-2010 – Metallic Materials Bend Test Method

ISO 15630 – Steel for Reinforcement of Concrete — Test Methods

ISO 6935-2 – Steel for Reinforcement of Concrete

BS 4449 – Steel for Concrete Reinforcement

ASTM A615 – Standard Specification for Deformed and Plain Carbon-Steel Bars

III. Technical Specifications

Rebar bending diameter range: φ6 – 40 mm

Loading method: Mechanical loading

Loading direction: Bidirectional reverse bending

Bending angle: Forward 180°, Reverse 180°

Maximum thrust: Torque-driven loading system

Working plate speed: ≤ adjustable rpm

Center distance: 165 mm

Working plate diameter: φ580 mm

Motor power: 1.5 kW

Hydraulic oil: Not required (mechanical system)

Overall dimensions: 1050 × 750 × 1200 mm

Packaging size (wooden case): 1200 × 900 × 1400 mm

IV. Product Features

1. High Precision Mechanical Structure

Stable transmission system ensures accurate and repeatable bending results.

2. Bidirectional 180° Bending Test

Supports both forward and reverse bending to meet international test requirements.

3. Compact and Durable Design

Small footprint with robust structure suitable for laboratory and factory environments.

4. Low Noise Operation

Mechanical loading system ensures quiet and stable performance.

5. Easy Operation and Maintenance

Simple control system with intuitive operation and minimal maintenance requirements.

6. No Hydraulic Oil Required

Pure mechanical design eliminates hydraulic system maintenance issues.

V. FAQ

1. What materials can this machine test?

It is mainly used for reinforcing steel bars (rebar) and other ductile metallic materials used in construction engineering.

2. What is the purpose of the bend-rebend test?

The test evaluates the ductility and crack resistance of steel bars by observing whether cracks appear after repeated bending.

3. Does the machine require hydraulic oil?

No. This model uses a pure mechanical loading system, so no hydraulic oil is required.

4. What is the maximum bending angle?

The machine supports 180° forward bending and 180° reverse bending.