CDRG - 45 Rebar Threading Machine

CDRG-45 Rebar Threading Machine is a heavy-duty rebar thread rolling machine designed to prepare TMT reinforcement bars for mechanical rebar coupler connections. It uses a controlled rib-stripping and thread-rolling process to produce consistent parallel threads on rebar ends.

The commonly published CDRG-45 configuration processes 1640 mm rebar, with thread pitches around 2.53.0 mm and a maximum working/threading length commonly specified around 80100 mm, depending on configuration.

Types / Variants

CDRG-45 machines may be available in different configurations depending on manufacturer and application.

Common configuration differences include:

• Sensor-type operation
• Limit-switch operation
• Different motor power
• Different threading lengths
• Different thread pitches
• Different roller/die sets
• Different dimensions and machine weights

For example, published CDRG-45/45R specifications include 1640 mm capacity, 2.5/3.0/3.5 mm thread pitch options, and sensor or chaser-type configurations.

For Surya Engineering: list only the configuration actually supplied by your company.

Key Features :

Robust and Durable Construction - heavy-duty for site
Wide Compatibility - Processes TMT bars of various sizes, ranging from 16mm to 45mm
High-Precision Threading - Ensures accurate threading for secure coupler connections
User-Friendly - Simple to operate, auto feeding/returning
Cost-Effective - Reduces steel wastage by eliminating overlapping rebars.

Sizes

Common processing range:

Classification

Machine Classification:

• Rebar processing machine
• TMT bar threading machine
• Rebar thread rolling machine
• Mechanical splicing preparation equipment
• Construction equipment
• Reinforcement processing equipment

Connection application: Mechanical rebar coupler connection.

Installation / Working Process

Step 1 Cut the Rebar
Cut the TMT bar to the required length using a suitable rebar cutting machine.

Step 2 Position the Bar
Place and properly align the reinforcement bar inside the CDRG-45.

Step 3 Prepare the Bar End
Position the bar according to the machine's specified threading procedure.

Step 4 Rib Stripping
The required portion of the bar end is prepared for thread formation.

Step 5 Thread Rolling
The machine's rollers form the required parallel thread on the prepared bar end.

Step 6 Inspect the Thread
Check the thread pitch, diameter, length and surface condition.

Step 7 Connect the Coupler
Install the compatible mechanical rebar coupler according to the approved installation procedure.

Step 8 Final Inspection
Verify proper thread engagement and connection quality before structural use.

 Advantages

• 1640 mm rebar processing range
• Suitable for mechanical rebar splicing applications
• Consistent thread formation
• Rib stripping and thread rolling process
• Suitable for repetitive fabrication work
• Helps standardize bar-end preparation
• Supports faster rebar processing
• Suitable for construction and infrastructure projects
• Can be used with compatible threaded rebar couplers
• Heavy-duty machine construction
• Suitable for fabrication yards and project sites