Dummy Bar for Continuous Casting
Rigid and flexible dummy bars, dummy bar heads and transition pieces for billet and bloom continuous casting machines. OEM replacement manufactured to your drawings, samples and caster specifications, matched to the copper mould tube section and casting radius (R4 / R5 / R6 / R9).
Dummy Bar for Continuous Casting
Our dummy bars are designed for continuous casting machines used in billet, bloom and other steel casting applications. The dummy bar provides the initial connection between the mould and the withdrawal system, starts the casting sequence and guides the newly solidified strand through the caster.
The dummy bar is inserted into the lower part of the mould before casting. At the start of casting the dummy bar head closes the mould outlet while the first solidified strand connects to the dummy bar; the withdrawal and straightening equipment then pulls the strand through the machine.
A complete system includes a dummy bar head, transition section and dummy bar body. Rigid or flexible configurations are supplied according to the caster design.
Dummy Bar System for Billet Continuous Casting
A typical system consists of the parts below, configured to the caster layout, mould section, withdrawal system and customer equipment. Manufactured from customer drawings, existing samples and equipment dimensions.
Rigid Dummy Bar
Rigid dummy bars suit continuous casting machines where a rigid connection and controlled guidance through the caster are required. Typical applications:
- Billet continuous casting machines
- Square billet casters
- Rectangular billet casters
- Bloom casting machines
- Steel plant replacement parts
The body, head and connection interface are manufactured to the customer's original design.
Flexible Dummy Bar
Flexible dummy bars are for casters where the dummy bar must follow a curved or flexible operating path. They are configured with suitable connecting sections and joints according to the caster design, for customized applications and replacement requirements.
Dummy Bar Head
The dummy bar head is the working end of the dummy bar, positioned inside the mould at the casting start. Its functions:
- Closing the lower opening of the mould before casting
- Connecting with the initial solidified strand
- Transmitting withdrawal force from the dummy bar
- Guiding the initial strand into the withdrawal and cooling system
- Separating from the billet after the casting start
Head geometry, connection design and separation mechanism depend on the caster and mould; heads are engineered as dedicated components, not universal parts. See Dummy Bar Head Series.
Dummy Bar for Square Billet Casting
Dummy bar systems for square billet sections such as:
Actual dimensions follow the customer's caster and mould drawings: dummy bar dimensions and connection geometry must match the complete caster system, not only the billet section.
Dummy Bar for R4, R5, R6 and R9 Moulds
Dummy bar heads and transition components are matched to the mould section and caster radius of the R4, R5, R6 or R9 copper mould tube. For example, a customer using a 100 × 100 × 780 mm R5 copper mould tube needs a dummy bar head and connection system designed for the same caster.
Dummy Bar and Copper Mould Tube Compatibility
Typical system: Copper Mould Tube → Dummy Bar Head → Transition → Dummy Bar Body → Withdrawal & Straightening Machine. The dummy bar is an integral part of the complete mould and withdrawal system.
Dummy Bar Materials
Materials are selected by component location, temperature exposure, mechanical loading and the customer's original equipment requirements.
Heat-resistant steel
Dummy bar heads and components exposed to high temperature and thermal cycling.
Carbon and alloy steel
Structural dummy bar components, transition sections and mechanical connection parts.
Wear-resistant materials
Areas subjected to repeated mechanical contact or sliding.
Material grade, heat treatment and mechanical properties are specified to customer drawings or original equipment requirements.
Dummy Bar Specifications
| Item | Available configuration |
|---|---|
| Application | Continuous casting machine |
| Casting type | Billet / bloom / customized |
| Type | Rigid / flexible |
| Main components | Head / transition / body |
| Mould section | Square / rectangular / round / customized |
| Casting radius | R4 / R5 / R6 / R9 / customized |
| Material | Carbon steel / alloy steel / heat-resistant steel |
| Manufacturing | Forging / welding / CNC machining |
| Surface | Machined / finished as required |
| Production | OEM / replacement / custom |
| Drawing | Customer drawing accepted |
Final dimensions and material grades are confirmed against the customer's drawings and caster specifications.
Customized Dummy Bar Manufacturing
Customized dummy bars are manufactured from engineering drawings, original equipment samples, existing dummy bar dimensions, copper mould tube dimensions, billet section, casting radius, withdrawal system, connection dimensions and customer material specifications.
OEM Dummy Bar Replacement
If your original dummy bar is worn, damaged or no longer available from the OEM, we manufacture a replacement. Provide any of: original drawing, equipment model, dummy bar photographs, existing part dimensions, dummy bar head dimensions, copper mould tube section, casting radius, connection dimensions. Our engineering team reviews the information and prepares a manufacturing proposal.
Manufacturing Process
Quality Control
Critical dimensions (connection interfaces, head geometry, overall alignment) are inspected before shipment; documentation supplied to customer requirements.
Why Choose Our Dummy Bar
Customized for your caster
Rigid and flexible options, heads and transition components, any mould section and casting radius.
Drawing or sample based
Manufacturing from drawings or samples, CNC machining for critical dimensions.
Billet & bloom casting
Suitable for square, rectangular and bloom casters.
OEM replacement service
Replacement when the original supplier no longer delivers.
Inspected & exported
Inspection before shipment; export supply to international steel plants.
Request a Dummy Bar Quote
Send your dummy bar drawing, photographs or existing dimensions to sales@coppermouldtube.com or WhatsApp. Our engineering team reviews your requirements and provides a customized quotation.