Product Induction

The GB4280 Gantry Horizontal Band Saw Machine with Automatic Electric Feeding is a heavy-duty metal cutting solution designed for large-size round bars, cylindrical workpieces, shafts, forged blocks, and other ferrous metal materials.

The machine adopts a double-column gantry structure, providing a rigid and stable cutting platform for demanding industrial applications. Its welded base and saw frame are treated through vibration stress relief to reduce welding deformation and improve long-term structural stability.

The GB4280 combines hydraulic workpiece clamping, hydraulic stepless feed control, variable-frequency band speed control, automatic hydraulic blade tensioning, circulating coolant, and electric roller feeding. These systems reduce manual material handling and provide a more efficient solution for repetitive heavy-duty cutting operations.

With a maximum cutting capacity of Ø800 mm for round materials and 800 mm for square/plate materials, the GB4280 is designed for large workpieces that require stable and efficient band sawing.

The machine is particularly suitable for applications involving large shafts, cylindrical components, forged blocks, and other heavy metal workpieces.

Automation Features

1. Electric Roller Feeding System

The GB4280 is equipped with a roller-type electric feeding system.

The standard feeding stroke is 1000 mm, with a 1.5 m electric feeding rack, helping reduce manual pushing and repositioning of heavy workpieces.

This configuration is particularly useful when processing long bars, shafts, and other heavy materials.

2. Hydraulic Workpiece Clamping

The machine uses hydraulic front and rear clamping vises.

The dual-vise configuration provides stable workpiece support during cutting and improves the parallel positioning of the material, helping maintain cutting stability for large workpieces.

3. Hydraulic Stepless Feed Control

The band saw feed is controlled hydraulically with stepless speed adjustment.

The feed rate can be adjusted according to the material type, workpiece size, and cutting requirements, allowing operators to select a suitable cutting condition for different materials.

4. Variable-Frequency Band Speed Control

The GB4280 provides a band speed range of 25–80 m/min with variable-frequency speed control.

This allows the cutting speed to be adjusted according to different material characteristics and production requirements.

5. Automatic Hydraulic Blade Tensioning

The band saw blade uses a hydraulic automatic tensioning system.

After the blade is installed on the drive and tension wheels, the hydraulic tensioning cylinder drives the tension wheel to apply the required blade tension. A manual valve is provided for convenient operation during blade installation and replacement.

6. Hydraulic Saw-Frame Lifting

The saw frame is lifted by two hydraulic cylinders operating simultaneously.

The hinged cylinder mounting helps avoid over-positioning and contributes to stable saw-frame movement during lifting and lowering.

7. Hydraulic Movable Guide Arm

The movable guide arm is driven hydraulically, allowing the guide position to be adjusted according to the workpiece size.

After adjustment, the guide arm is mechanically locked using a dovetail block. The guide seat uses carbide components on the top and side surfaces to provide wear resistance and stable blade guidance.

8. Circulating Cooling System

The machine uses a circulating coolant system to reduce blade heat during cutting and support stable cutting performance.

Cooling points are arranged around the left and right guide-arm areas and above the saw blade.

9. Automatic Chip Cleaning

A passive wire-brush cleaning wheel is installed to remove metal chips from the band saw blade.

The combination of chip removal and coolant circulation helps keep the saw teeth clear, reducing chip accumulation in the tooth gullets and helping extend blade service life.

10. Interlocked Electrical Control

The GB4280 uses a separate electrical control cabinet. Machine movements are controlled through buttons and relay circuits with interlocking functions.

This control architecture helps prevent conflicting machine actions and provides a straightforward operating method for industrial en

Technical Specifications

Customization Options

The GB4280 can be configured according to the customer's workpiece dimensions, material characteristics, production requirements, and factory layout.

1. Feeding System Configuration

The standard machine uses an electric roller feeding system with a 1000 mm feeding stroke and a 1.5 m electric feeding rack.

For production lines requiring longer material handling distances or additional storage capacity, the feeding section can be evaluated according to the customer's requirements.

2. Material Handling Integration

For customers with higher automation requirements, the GB4280 can be considered for integration with:

• Automatic material loading systems
• Extended roller conveyors
• Material storage racks
• Automatic unloading systems
• Finished-piece collection systems
• Upstream and downstream production equipment

The final solution should be designed according to workpiece dimensions, weight, cutting length, and factory layout.

3. Clamping Configuration

The standard machine uses front and rear hydraulic clamping.

For special workpiece geometries, such as large shafts, cylindrical components, forged blocks, or irregular heavy workpieces, customized clamping solutions can be evaluated according to the workpiece shape.

4. Blade Speed Configuration

The standard band speed range is 25–80 m/min with variable-frequency control.

Different speed-control configurations can be evaluated for specific material types and cutting requirements.

5. Production-Line Automation

For customers requiring a higher degree of automation, the machine can be integrated with auxiliary systems for:

Material Loading → Electric Feeding → Hydraulic Clamping → Band Saw Cutting → Material Unloading

The specific automation level should be determined according to the customer's production volume and process requirements.

Application

The GB4280 is primarily designed for large and heavy ferrous metal workpieces.

Large Round Bar Cutting

Suitable for large-diameter round bars requiring stable and efficient band sawing.

Shaft Cutting

The large cutting capacity and rigid gantry structure make the GB4280 suitable for cutting long and heavy shaft materials.

Large Cylindrical Components

The machine can process large cylindrical workpieces and tube-like components within its maximum cutting capacity.

Forged Block Cutting

The machine is suitable for cutting large forged blocks and other heavy metal blanks into required sections.

Heavy Machinery Manufacturing

The GB4280 can be used as a material preparation machine in heavy machinery manufacturing, where large steel sections and components need to be cut before further machining.

Steel Processing

The machine can be applied to steel-processing operations requiring large-capacity, high-stability horizontal band sawing.

Batch Cutting

The electric feeding system reduces manual material handling and is suitable for repetitive cutting operations involving similar workpieces.

FAQ

Q1: What is your factory acceptance test method?

A: You can send us sample material to be cut, and we will perform a test cut using our machine. After the test is complete, we will provide you with detailed cutting data. (We will also send you a video of the machine cutting operation for your confirmation.)

Q2: Does the band saw blade have any international certifications?

A: Yes, we have obtained CE, ISO international

Q3: Are you a manufacturer or a trading company?

A: We are a professional manufacturer of saw blade grinders. We have a 30,000 square meter factory and a team of dedicated technicians specializing in design, manufacturing, and sales.

Q4: Does the GB4280 have automatic blade tensioning?

A: Yes. The band saw blade uses a hydraulic automatic tensioning system.

Q5: What materials can the GB4280 cut?

A: The machine is designed for ferrous metal materials, including large round workpieces, cylindrical components, shafts, square forged blocks, and similar heavy metal materials.