Horizontal CNC Flange Spinning Machine

The BXFBJ1600 Horizontal CNC Flange Spinning Machine is designed for forming right-angle and customized-angle flanges on cylindrical and conical metal components. It combines hydraulic workpiece clamping, CNC-controlled flange spinning and precision indexing punching to help manufacturers produce consistent air ducts, fan housings, pipeline components and large circular metal parts.

A rotary tie-rod hydraulic cylinder drives the three-jaw chuck to automatically clamp the workpiece. This horizontal structure provides convenient loading and unloading for long cylindrical components while maintaining reliable concentricity and stable rotation throughout the forming process.

With a processing diameter range of 500–1600 mm, a workpiece height range of 250–1200 mm and a material thickness capacity of 1–8 mm, the BXFBJ1600 is suitable for medium- and large-diameter industrial components.

What Can the BXFBJ1600 Produce?

The horizontal CNC flange spinning machine is developed for rotationally symmetrical cylindrical and conical components that require accurately formed connection edges.

Typical products include:

• • Industrial fan housings

• • Axial fan air drums

• • Large fan collector housings

• • Ventilation air ducts

• • HVAC duct components

• • Pipeline sections

• • Cylindrical metal shells

• • Conical transition sections

• • Dust collection system ducts

• • Exhaust system components

• • Circular tank sections

• • Flanged pipe components

The machine is particularly suitable for manufacturers of industrial fans, ventilation systems, environmental protection equipment, pipeline systems and large sheet metal assemblies.

CNC Flange Spinning Process

During operation, the cylindrical workpiece is placed horizontally and automatically secured by the hydraulic three-jaw chuck. The spindle then rotates the workpiece while the CNC-controlled forming roller progressively shapes its open edge.

The general forming process includes:

1. • Loading the cylindrical or conical workpiece

2. • Automatic hydraulic chuck clamping

3. • Workpiece centering and rotation

4. • Progressive edge preforming

5. • CNC-controlled flange spinning

6. • Flange sizing and profile finishing

7. • CNC indexing and punching when required

8. • Hydraulic release and workpiece unloading

Progressive roller forming distributes deformation across several controlled movements. This method is suitable for forming wide circular edges without relying entirely on a dedicated press die.

Right-Angle and Customized-Angle Flanging

The BXFBJ1600 can be configured to form standard right-angle flanges as well as customized angular profiles.

A 90-degree flange is commonly used for bolted connections between air ducts, fan housings, pipeline sections and other circular components. Customized-angle flanges may be required for inlet cones, transition sections and specially designed ventilation equipment.

The final flange angle depends on:

• • Product drawing

• • Material thickness

• • Material ductility

• • Flange width

• • Forming radius

• • Roller profile

• • Number of forming passes

Boxiang evaluates these factors before designing the tooling and CNC forming program.

CNC Indexing and Punching

In addition to flange spinning, the BXFBJ1600 supports CNC-controlled indexing punching. Hole quantity, spacing and angular position can be programmed according to the flange connection requirements.

Integrating flanging and indexed punching on one machine helps reduce repeated workpiece positioning. It also supports more consistent hole distribution around circular flanges.

This function is suitable for components that require:

• • Evenly distributed bolt holes

• • Circular mounting holes

• • Fan housing connection holes

• • Pipe flange fastening holes

• • Repetitive indexed hole patterns

The punching configuration should be confirmed according to hole diameter, flange thickness, hole quantity and required positional accuracy.

Three-Station Tooling System

The BXFBJ1600 is equipped with a three-station tooling arrangement. Different forming and auxiliary tools can be installed to perform sequential operations on the same workpiece.

Depending on the product requirements, the stations may be configured for:

• • Edge preforming

• • Flange spinning

• • Flange finishing

• • Beading

• • Punching

• • Profile correction

The tooling arrangement is customized according to the component shape and manufacturing process. Completing multiple steps on one machine helps reduce workpiece transfers between separate production stations.

Advantages of the Horizontal Machine Structure

Convenient Loading of Long Cylindrical Parts

The horizontal layout is suitable for air drums, duct sections and pipe components with relatively long axial dimensions. Workpieces can be loaded and supported along the horizontal machine axis.

Stable Hydraulic Clamping

The rotary tie-rod hydraulic cylinder drives the three-jaw chuck to clamp the workpiece automatically. This provides stable holding force during rotation and forming.

Reliable Workpiece Concentricity

Proper chuck clamping helps keep the cylindrical workpiece centered around the spindle axis. Good concentricity is important for controlling flange width and circular consistency.

CNC-Controlled Repeatability

The roller movement and indexing positions are controlled through the CNC system. Once the forming program has been confirmed, it can be reused for repeated production of the same component.

Flexible Flange Specifications

The machine covers flange widths from 15 to 100 mm. Different flange profiles can be produced by changing the roller tooling and CNC program within the machine’s capacity.

Integrated Forming and Punching

Flanging and indexed punching can be combined in one production setup, reducing manual marking, repeated positioning and separate processing procedures.

Suitable Materials

The BXFBJ1600 may be configured for ductile sheet metals commonly used in cylindrical component manufacturing, including:

• • Carbon steel

• • Cold-rolled steel

• • Stainless steel

• • Galvanized steel

• • Aluminum alloy

The maximum allowable thickness may vary between different materials. Materials with higher tensile strength or limited elongation may require reduced thickness, larger forming radii or additional forming passes.

Customers should provide the exact material grade and mechanical properties for technical evaluation.

How to Confirm Whether the BXFBJ1600 Is Suitable

The machine is generally suitable when the proposed workpiece falls within the following basic range:

• • Diameter between 500 and 1600 mm

• • Height between 250 and 1200 mm

• • Material thickness between 1 and 8 mm

• • Flange width between 15 and 100 mm

However, machine selection should not be based only on maximum dimensions. The following information is also required:

1. Finished product drawing

2. Workpiece diameter and height

3. Material grade and thickness

4. Required flange width

5. Flange angle and forming radius

6. Hole diameter and punching pattern

7. Dimensional tolerance requirements

8. Required cycle time

9. Monthly or annual production volume

10. Upstream and downstream equipment

Boxiang uses this information to evaluate the clamping fixture, forming rollers, CNC program and punching configuration.

Customized Horizontal Flanging Solutions

Different fan housings, ducts and pipeline components require different clamping and forming solutions. Boxiang can customize the BXFBJ1600 according to the customer’s product drawing and production process.

Available customization includes:

• • Workpiece-specific hydraulic chuck

• • Customized clamping jaws

• • Flange spinning rollers

• • Beading and finishing tools

• • CNC forming programs

• • Indexing punching systems

• • Workpiece supporting devices

• • Loading and unloading assistance

• • Safety guards

• • Automatic lubrication systems

• • Production-line integration

Sample forming and process verification can be performed to confirm the flange profile and production feasibility before final machine delivery.

Why Choose Boxiang?

Boxiang specializes in CNC metal spinning machines and customized rotary forming solutions. Our team supports customers throughout machine selection, tooling design, process development, manufacturing, testing and operator training.

For industrial fan, air duct and pipeline manufacturers, we provide machine solutions based on actual workpiece dimensions, materials, flange structures and production capacity rather than offering only a standard configuration.