SHENCHONG 4X6000mm hydraulic metal shearing machine is a high-precision shearing device specifically designed for large-scale thin sheet metal processing. It belongs to the hydraulic guillotine shear series.

- 4mm: Maximum shearing thickness of ordinary carbon steel (tensile strength approximately 450MPa)

- 6000mm: Maximum shearing length, capable of shearing 6 meters of sheet metal in a single pass.

- Hydraulic drive: Employs a hydraulic system to complete the shearing action, ensuring smooth operation and high shearing force.

- Pneumatic Sheet Support: Equipped with a rear-mounted pneumatic support system to support extra-long and extra-thin sheets, preventing sagging and improving shearing accuracy. An essential feature of large shearing machines exceeding 6 meters in length.

This equipment is widely used in:

- Sheet metal manufacturing

- Power cabinets

- Building curtain walls

- Ventilation ducts

- Elevator manufacturing

- Container manufacturing

- Construction machinery

- New energy equipment

- Shipbuilding

- Stainless steel machining centers

1. Main Technical Parameters (Typical Configuration): SC 4X6000mm Hydraulic Metal Shearing Machine For Sale

Parameter Table (For Reference Only):

2. SC Hydraulic Guillotine Shear Machine Structure Introduction

1) All-Steel Welded Frame

The entire machine is welded from high-strength steel plates.

It undergoes:

Stress-relief annealing, vibration aging, and precision machining.

It features:

High rigidity, long-term non-deformation, stable shearing, and good seismic performance.

For a 6000mm ultra-long shearing machine, the frame rigidity directly determines the shearing straightness.

2) Hydraulic Shearing System

The machine uses hydraulic cylinders to drive the cutter head up and down.

Compared to mechanical shearing machines:

Advantages include:

stable output force, low impact, low noise, long service life, and continuous heavy-duty operation.

The hydraulic system typically uses:

Integrated hydraulic valve block, gear pump, solenoid directional valve, hydraulic oil tank, and high-pressure oil circuit, ensuring reliable operation.

3) Guillotine Shearing Structure

This machine typically uses a guillotine shearing system.

Features:

Linear motion of the upper blade holder; Fixed or adjustable shearing angle; Smooth sheared surface; Fewer burrs; High precision.

Compared to swing beam shears:

Better straightness; Less twisting; More suitable for stainless steel sheets; More suitable for long sheet materials.

Three-point roller guide support, adjustable blade gap, and variable shearing angle further improve shearing quality.

3. Pneumatic Sheet Support System for Shearing Machines

1) What is a Pneumatic Sheet Support?

Pneumatic Sheet Support:

Also known as: Pneumatic Sheet Support, Air-Floating Sheet, Rear Sheet Support Device

It is mainly installed at the rear of the machine.

After the sheet is sheared, the pneumatic sheet support automatically rises to support the sheet.

The sheet will not:

- sag

- bend

- scratch

- Jaw

working process:

① Sheet is fed in

↓

② Back gauge positioning

↓

③ Pneumatic sheet support rises

↓

④ Supports the entire sheet

↓

⑤ Hydraulic shearing

↓

⑥ Shearing completed

↓

⑦ Sheet falls smoothly

↓

⑧ Pneumatic sheet support descends

The entire process is fully automatic.

2) Advantages of a Pneumatic Sheet Support

- Prevents sheet sagging

A 6000mm sheet is very heavy.

For example: A 6m × 1500mm × 1mm ordinary steel plate weighs nearly 70kg.

Without a pneumatic sheet support, the sheet will sag naturally.

Causes: Dimensional errors, changes in shearing angle, inaccurate back gauge positioning

An air support can continuously hold the sheet metal, ensuring it remains level.

- Improved shearing accuracy

Without an air support, sheet metal is prone to:

- Waving

- Bending

- Shifting

- Increased shearing dimensional errors

With an air support:

More stable dimensions.

Especially:

Positioning within ±0.2mm is easier to achieve.

- Reduced scratches

Traditional shearing:

Sheet metal falls directly after shearing.

Prone to:

Scratching the surface

Abrading brushed stainless steel

Damaging mirror finishes

An air support can cushion and support the sheet metal.

Especially suitable for:

- 304 stainless steel

- Mirror finishes

- Color steel plates

- Aluminum plates

- Increased production efficiency

No manual intervention required:

Receiving, supporting, and holding the plate.

Reduces operator workload.

- Suitable for extra-long plates

For shearing machines of 6000mm or even 8000mm, a pneumatic support is almost standard equipment.

4. Advantages in Shearing Precision

SHENCHONG hydraulic guillotine shearing machines can achieve:

- High repeatability of shearing dimensions

- Good shearing straightness

- Small burrs

- Perpendicular cuts

- Minimum sheet deformation

Factors affecting precision include:

- Blade clearance

- Shearing angle

- Back gauge precision

- Frame rigidity

- Air support stability

5. Typical Application Industries of the 4X6000MM Hydraulic Shearing Machine

The 4X6000mm hydraulic metal shearing machine is particularly suitable for industries requiring the processing of extra-long sheets, including:

- Building curtain walls and metal cladding

- Elevator cars and doors

- Ventilation and air conditioning ducts

- Power cabinets and distribution boxes

- Stainless steel products

- New energy equipment housings

- Shipbuilding and marine engineering equipment

- Construction machinery

- Agricultural machinery

- Steel structure manufacturing

6. Summary

Compared to ordinary shearing machines, the SHENCHONG 4X6000mm hydraulic metal shearing machine (with pneumatic support) has the following outstanding advantages:

- Extra-long one-time forming shearing: Can directly process 6-meter whole sheets, reducing splicing processes.

- Pneumatic material handling enhances quality: Effectively prevents sagging, scratches, and dimensional deviations in thin sheets, especially suitable for stainless steel, aluminum sheets, and materials with high surface finish requirements.

- Hydraulic guillotine structure ensures stable and reliable shearing: Smooth cutting, low noise, and minimal maintenance, suitable for long-term continuous production.

- High-precision CNC back gauge: Supports programmed positioning and batch processing, improving dimensional consistency.

- Four-sided, long-life cutting blades: Reduces tool replacement frequency and operating costs.

- Suitable for automation upgrades: Can be expanded to include a front feeding platform, rear receiving platform, pneumatic material handling, automatic loading and unloading, and MES data interface to achieve an intelligent sheet metal production line.