Solutions professionnelles de scarification des billes intérieures pour les lignes de tubes ERW

Laminoir à tubes en acier au carbone ERW

Machine de broyage de tubes Compose

Machine de formage à froid

Ligne de refendage de bobines d'acier

Ligne de refendage de bobines d'acier au carbone

Ligne de coupe à longueur de bobines d'acier

Équipements auxiliaires et pièces de rechange

Pipe Inner Scarfing Remove Device for ERW Tube Mill

The Pipe Inner Scarfing Remove Device is designed for efficient inner weld bead removal in ERW tube mills. Available in mechanical and pneumatic types, it ensures smooth internal surfaces, stable performance, and easy operation. Widely used for carbon steel, galvanized, and stainless steel pipes, it helps improve pipe quality, coating adhesion, and overall production efficiency.

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Le Pipe Inner Scarfing Remove Device is a vital component of the ERW tube mill line, designed to remove the inner weld bead formed during high-frequency welding.

By accurately cutting and removing the internal bead, it ensures a smooth internal surface, improves coating quality, and enhances pipe performance in downstream applications such as fluid, gas, and structural use.

Hebei AIS Machinery offers two models to suit different production needs:
Mechanical Type et Pneumatic Type Inner Scarfing Devices.

1. Mechanical Type Inner Scarfing Device

Description

Le Mechanical Type Inner Scarfing Device adopts a precision manual mechanical feed system to control the cutting head position inside the welded tube.
It’s ideal for medium-speed ERW lines with fixed specifications, offering stable operation and long service life.

Device Mechanical type

Main Features

Stable mechanical control for consistent cutting performance
Manual adjustment of cutting depth and tool position
Simple structure, low maintenance, easy installation
No air or electrical power required
Suitable for carbon steel et galvanized steel pipes

Technical Range

• Pipe OD: 20 – 165 mm
• Wall Thickness: 0.8 – 5.0 mm
• Line Speed: up to 60 m/min
• Feed Control: Manual mechanical feed
• Material: Carbon steel / Galvanized steel

Applications

Best for construction tube, furniture pipe, et general structural pipe production where pipe sizes remain stable.

2. Pneumatic Type Inner Scarfing Device

Description

Le Pneumatic Type Inner Scarfing Device uses compressed air to drive the cutting head feed and retract mechanism automatically.
It enables quick setup, higher precision, and improved safety—ideal for high-speed ERW tube mills ou frequently changing production.

Pneumatic type

Main Features

Pneumatic automatic feed and retract system
Quick tool positioning for size change
Adjustable air pressure ensures consistent bead removal
Smooth cutting and excellent surface finish
Suitable for carbon steel et stainless steel pipes

Technical Range

• Pipe OD: 25 – 325 mm
• Wall Thickness: 1.0 – 8.0 mm
• Air Pressure: 0.5 – 0.8 MPa
• Line Speed: up to 120 m/min
• Feed Control: Pneumatic automatic feed & retract
1.Cutter, 2. support, 3. cylinder, 4.roller, 5. roller, 6. impeder,7. pull rod, 8. air source feeding, 9.plate

Applications

Recommended for API pipe, boiler tube, precision structure pipe, et high-speed welded pipe lines that require clean, uniform internal surfaces.

3. Comparison Between Mechanical and Pneumatic Types

Fonctionnalité	Mechanical Type	Pneumatic Type
Drive System	Manual mechanical feed	Pneumatic automatic feed
Operation	Manual adjustment	Automatic control
Pipe OD Range	20–165 mm	25–325 mm
Vitesse de production	Medium (≤60 m/min)	High (≤120 m/min)
Setup Time	Longer	Quick changeover
Maintenance	Simple, low cost	Slightly higher
Automation Level	Basic	Advanced
Recommended For	Stable, fixed-size production	High-speed, multi-size production

4. How to Choose the Right Device

Choose Mechanical Type if:

Production speed is moderate (below 60 m/min).
Pipe sizes are fixed or rarely changed.
You produce construction or furniture tubes.
You prefer simple operation and low maintenance cost.

Choose Pneumatic Type if:

Line speed is high (up to 120 m/min).
Pipe sizes change frequently.
You produce precision or API pipes.
You require automatic control and improved surface finish.

5. Advantages of AIS Inner Scarfing Systems

High precision and stable cutting performance
Improved internal surface quality and pipe roundness
Longer tool life with carbide or HSS cutting heads
Easy integration into existing ERW tube mills
Customizable design according to line speed and pipe size range

6. Related Equipment

Outer Scarfing Device – removes the external weld bead
Bead Winder / Chopper – collects and processes removed bead
ERW Tube Mill Line – complete production system for welded pipes
Flying Saw Cutting Machine – precise length cutting after welding

7. Typical Application Industries

ERW carbon steel pipe mills
Furniture tube production
Oil, gas, and water pipe lines
Mechanical structure tubing
API standard pipe manufacturing

EQUIPEMENT DE RELATION

Nous fournissons tout l'équipement pour la section d'entrée du laminoir à tubes :

Voiture à bobine

Dérouleur à tête simple et double et dérouleur hydraulique et pneumatique

Bras d'éplucheur et de maintien du rouleau

Machine à aplatir

Cisailleuse et soudeuse bout à bout automatique et semi-automatique

Vertical Cage Accumulator & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator

What is a Pipe Inner Scarfing Remove Device?

It’s a device used in ERW tube mills to remove the inner weld bead after welding, ensuring a smooth inner surface and better pipe quality.

What is the difference between mechanical and pneumatic types?

The mechanical type uses manual feed and is ideal for stable, medium-speed lines, while the pneumatic type uses air-driven automatic feed for high-speed, multi-size production.

What pipe sizes can it handle?

The device covers pipe diameters from 20 mm up to 325 mm, depending on the model and production line.

Can it be installed on an existing ERW tube mill?

Yes. Both types can be customized and easily integrated into new or existing ERW production lines.

What materials are suitable for this device?

It’s suitable for carbon steel, galvanized steel, and stainless steel welded pipes.

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