GB4250 Main Auxiliary Column Horizontal Band Saw Machine Hydraulic Metal Cutting

The GB4250 Horizontal Metal Band Saw Machine is a heavy-duty horizontal band saw designed for cutting large steel billets and a wide range of ferrous and non-ferrous metal materials. Developed for applications involving high-hardness alloy metals, the GB4250 combines a rigid structural design, powerful transmission system and hydraulic control to provide stable and efficient metal cutting.

The machine features a main and auxiliary column guiding structure, with a large cylindrical column and a smaller auxiliary column. The column surfaces are hard-chrome plated to improve wear resistance and help maintain long-term cutting accuracy.

The GB4250 uses hydraulic saw-frame lifting, hydraulic workpiece clamping and adjustable blade feed. The blade is guided by bearing assemblies and adjustable tungsten-carbide guide blocks to help reduce vibration and maintain cutting accuracy.

With a maximum cutting height of 500 mm and width of 600 mm, the GB4250 is suitable for large workpieces and steel billets. Depending on the material and selected cutting parameters, it can process different types of soft and hard ferrous and non-ferrous metals.

Key Features

1. Heavy-Duty Main & Auxiliary Column Structure

The GB4250 uses a large cylindrical main column combined with an auxiliary column to support and guide the saw frame. This structure provides stable guidance and reliable machine operation. The column surfaces are hard-chrome plated to improve wear resistance and extend service life.

2. Designed for Large Metal Workpieces

The machine is designed for cutting large steel billets with a maximum cutting height of 500 mm and width of 600 mm. It can be configured with appropriate cutting parameters for different soft and hard ferrous and non-ferrous metals.

3. High-Power Main Drive

The GB4250 is equipped with a 5.5 kW main motor, providing increased drive power for heavy-duty metal cutting applications. The transmission system uses a precision-machined worm gear and worm shaft, with the worm gear box manufactured from Meehanite cast iron for strength and durability.

4. Hydraulic Saw-Frame Lifting

The saw frame uses an arch-shaped welded structure and is lifted by a hydraulic cylinder combined with the column system. Hydraulic transmission is also used for workpiece clamping and material feeding/return functions.

5. Adjustable Blade Guide System

The left and right blade guide arms can move along dovetail guides, allowing the distance between the guide arms to be adjusted according to workpiece dimensions. The guide system uses rolling bearings, wear-resistant guide blocks and a dual-bearing structure at the rear of the blade to improve blade stability and reduce vibration.

6. Full Hydraulic Workpiece Clamping

The standard machine uses a fully hydraulic left vise clamping system. Operators can control workpiece clamping and releasing using buttons on the control panel, simplifying operation and helping secure different types of workpieces during cutting.

7. Three Blade Speeds + Stepless Feed

The GB4250 provides three blade speeds of 23, 42 and 60 m/min, while the blade feed is adjustable steplessly. This allows operators to select suitable cutting conditions for different materials and workpiece sizes.

8. Rigid Welded Saw Frame

The saw frame is constructed from high-quality steel plates with reinforcing ribs. After vibration stress-relief treatment, welding stresses are redistributed and reduced, helping improve the stability of the saw frame during operation.

9. Cooling System for Continuous Cutting

The machine is equipped with a cooling system, including a 60 W coolant pump. Coolant helps support the cutting process and is particularly useful when processing hard metals and large workpieces.

10. Optional Variable-Frequency Control

The main motor can be equipped with variable-frequency control. The supplied specification identifies Inovance as the optional frequency-converter brand and provides a configuration option for customers requiring variable-frequency control.

Technical Specifications

Application

The GB4250 is primarily designed for large-section metal cutting and heavy-duty sawing applications.

Typical applications include:

• Large steel billet cutting
• Large round bar cutting
• Large square and rectangular steel cutting
• High-hardness alloy metal cutting
• Ferrous metal cutting
• Non-ferrous metal cutting
• Heavy machinery manufacturing
• Metal processing and fabrication
• Steel stock preparation
• Industrial metalworking

With a cutting capacity of up to 600 mm wide * 500 mm high, the GB4250 is particularly suitable for applications where conventional smaller band saws cannot accommodate large workpieces. The manufacturer specifies that, with appropriate parameter adjustment, the machine can cut different soft and hard ferrous and non-ferrous metal materials.

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: What is your method of transaction?

A: We adopt the FOB(Free ON Board) transaction.

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: What type of blade guide system does the machine use?

A: The blade guide system combines rolling bearings, wear-resistant guide blocks and a dual-bearing rear guide structure. The guide arms can be adjusted along dovetail guides according to the workpiece size.

Q5: Can the GB4250 be equipped with variable-frequency control?

A: Yes. The technical document states that variable-frequency control can be selected for the main motor.