Hot Forging Billet Scale Removal Equipment

Descaling Machine

Remove oxide scale from heated billets, round bars and forged blanks before forging, helping improve surface quality, reduce defects and support cleaner forging production.

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Descaling Machine for Hot Forging Lines

A descaling machine is used to remove oxide scale from hot billets, round bars and pre-forged blanks before they enter the forging process. During heating, metal surfaces react with oxygen and form scale. If this scale is not removed before forging, it can be pressed into the workpiece surface, causing pits, poor finish, higher machining allowance and possible rejection of finished parts.

Our forging descaling machine range is suitable for hot die forging, closed die forging, induction heating lines, billet preparation and automated forging production. The machine uses controlled high-pressure water spray, scraping or positioning mechanisms depending on the selected configuration and workpiece requirements.

It is suitable for carbon steel, alloy steel, stainless steel and other forgeable materials used in automotive parts, engineering components, hardware, fasteners, agricultural machinery parts and industrial forging lines.

Why Oxide Scale Removal Matters Before Forging

Oxide scale can look like a small surface problem, but in forging production it can directly affect part quality, die life and downstream machining. When scale is pressed into the forging surface, it may create indentations, surface marks and material loss. For precision forging, this can increase rejection rates and add extra finishing work.

A billet descaling machine helps remove scale before the forging stroke, giving the workpiece a cleaner surface and improving consistency across the production line.

Machine Features

High-Pressure Scale Removal

The machine removes oxide scale from hot billets and forged blanks using controlled pressure and a focused cleaning area. This helps clean the surface quickly before the workpiece enters the forging operation.

SS304 Stainless Steel Contact Areas

The machine is designed with SS304 material for key water-contact and cleaning sections, supporting corrosion resistance, durability and cleaner operation in demanding forging workshops.

Suitable for Round Bars and Blanks

Different machine configurations are available for round bars, billet sections and post-cut blanks. This allows the descaling system to match different forging line layouts and workpiece sizes.

Compact Forging Line Integration

The machine can be positioned between the heating furnace and forging equipment, making it suitable for new production lines or upgrades to existing forging cells.

Stable Conveyor and Chain Support

The chain bearing capacity is matched to the machine type, helping support smooth billet movement through the cleaning section.

Multiple Configuration Options

Small, big, double-pump, temperature-control and positioning types are available, allowing the descaling machine to be selected according to billet size, pressure requirement and automation level.

Suitable Industries

This machine is suitable for forging manufacturers producing:

Automotive forged parts
Connecting rods and brackets
Gears and gear blanks
Hand tools and hardware
Fasteners and fittings
Agricultural machinery parts
Engineering machinery components
Precision forged metal parts
General industrial forged components

Benefits

Better Forging Surface Quality

Removing scale before forging helps reduce surface pits, marks and oxide inclusion, giving forged parts a cleaner finish.

Reduced Manual Labour

The machine reduces the need for manual scale cleaning, helping improve operator safety and production efficiency.

Lower Rework and Scrap Risk

Cleaner billets help reduce surface defects, which can lower the risk of rejected parts and additional machining work.

Improved Die Protection

Less oxide scale entering the die area can help reduce abrasive wear and support more stable die performance.

Faster Production Flow

The descaling process can be integrated into the forging line, supporting a smoother workflow between heating and forging.

Cleaner Workshop Operation

Scale collection and controlled cleaning reduce loose oxide build-up around the forging area, supporting a more organised production environment.

Typical Applications

The descaling machine is suitable for:

Hot die forging lines
Closed die forging production
Induction heating billet lines
Round bar forging preparation
Automotive parts forging
Hardware and tool forging
Fastener and fitting forging
Agricultural machinery parts
Engineering machinery components
General metal forging workshops

Process Flow

1. Billet Heating

The billet or round bar is heated in an induction furnace or other heating system until it reaches the required forging temperature.

2. Scale Formation

During heating, oxide scale forms on the surface of the billet. This must be removed before forging to protect part quality.

3. Descaling Operation

The hot billet passes through the descaling machine, where scale is removed by controlled pressure, spray, scraper or positioning action depending on the machine configuration.

4. Transfer to Forging Equipment

After descaling, the cleaner billet moves to the forging press, forging hammer or die forging station.

5. Forging Process

The cleaned billet is forged into shape, reducing the risk of scale being pressed into the forged surface.

6. Downstream Processing

The forged part can move to trimming, heat treatment, machining, shot blasting or inspection with improved surface consistency.

Technical specifications

Item	Unit	Small Descaling Machine WM-09-S	Big Descaling Machine WM-09-B	Double Pump Big Descaling Machine WM-09-DP	Temperature Control Small Descaling Machine WM-09-TCS	Temperature Control Big Descaling Machine WM-09-TCB	Position Small Descaling Machine WM-09-PS	Position Big Descaling Machine WM-09-PB
Pressure	MPa	1.5–1.7	1.5–1.7	2.5–3.0	1.5–1.7	1.5–1.7	1.5–1.7	1.5–1.7
Voltage	V	380	380	380	380	380	380	380
Material	-	SS304	SS304	SS304	SS304	SS304	SS304	SS304
Specification — Round Bar Diameter	mm	φ20–φ80	φ55–φ100	φ55–φ100	φ20–φ55	φ55–φ100	φ20–φ55	φ55–φ100
Specification — Round Bar Length	mm	≤400	≤500	≤500	≤400	≤500	≤400	≤500
After Blank Making — Width × Height	mm	≤110 × 80	≤160 × 100	≤160 × 100	≤60 × 55	≤160 × 100	≤60 × 55	≤160 × 100
After Blank Making — Length	mm	≤400	≤500	≤500	≤400	≤500	≤400	≤500
Chain Bearing	kg	15	30	30	15	30	15	30
Dimensions L × W × H	mm	1300 × 1500 × 1500	1600 × 1600 × 1600	1600 × 1800 × 1600	1300 × 1500 × 1500	1600 × 1600 × 1600	1300 × 1500 × 1500	1600 × 1600 × 1600
Application Scope	Forging Process: Hot die forging, closed die forging, billet heating lines, induction furnace lines, pre-forging preparation and scale removal before forging Suitable Materials: Carbon steel, alloy steel, stainless steel and other forgeable metals Typical Products: Automotive components, fasteners, hand tools, hardware parts, agricultural machinery parts, engineering machinery parts, connecting rods, brackets, fittings and precision forged components
Note	The above descaling machine technical parameters are for reference only. Final specifications may vary depending on workpiece size, heating method, production speed, pressure requirement, automation level and project conditions.

For accurate model selection, please send your workpiece size, material, forging temperature, required process and expected production output. Wiz Machinery can help match the hammer capacity to your application.

How to Choose the Right Descaling Machine

Check the Billet Diameter

For smaller round bars, a compact model may be suitable. For larger billets or higher production requirements, a big or double-pump configuration may be required.

Confirm the Blank Size After Cutting

If the billet is already cut into blanks before descaling, the width, height and length must match the machine’s working range.

Match the Forging Line Layout

The machine should fit between the heating furnace and forging equipment with enough space for feeding, discharging and maintenance.

Select the Correct Pressure Level

Standard models are suitable for many forging lines, while higher-pressure or double-pump machines may be chosen for heavier scale or more demanding cleaning requirements.

Consider Automation Requirements

Temperature-control and positioning models can be selected for lines that need better process control and repeatable billet handling.

Plan Water and Scale Collection

The descaling system should support practical water handling, oxide scale collection and easy cleaning to keep the workshop efficient.

Where the Machine Fits in a Forging Line

A typical forging line may include:

Billet cutting machine → Induction heating furnace → Descaling machine → Forging press or forging hammer → Trimming press → Cooling or heat treatment

The descaling machine is normally installed after heating and before forging. This position allows the hot billet to be cleaned immediately before forming, reducing the chance of oxide scale being pressed into the part surface.

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FAQ

What is a descaling machine used for?

A descaling machine is used to remove oxide scale from heated billets, round bars and forged blanks before forging. It helps improve surface quality and reduce forging defects.

Where is the machine installed in the forging line?

It is normally installed after the heating furnace and before the forging press, forging hammer or die forging machine.

Can it be used for round bars?

Yes. Different models are available for round bars with different diameter ranges.

Can the machine be customised?

Yes. The machine can be configured according to billet size, blank size, production line layout, pressure requirement and automation level.

What material is used for the machine?

The listed models use SS304 material for key machine sections, supporting corrosion resistance and long service life.

Which model should I choose?

The correct model depends on billet diameter, blank dimensions, production speed, pressure requirement and line layout.