Due to the harsh working environment of the ship, the hull shell is subject to chemical corrosion of seawater, electrochemical corrosion and corrosion of marine organisms and microorganisms; the hull is subjected to large wind and wave impacts and alternating loads; the shape of the ship is complicated by processing methods, etc. Steel for hull structure is strictly required. First of all, good toughness is the most critical requirement. In addition, high strength, good corrosion resistance, weldability, forming properties and surface quality are required.
Shipbuilding Steels Our hot rolled shipbuilding steel is produced in accordance with the relevant Classification Society, examples of which include Lloyds Register and Det Norske Veritas.
Our steel products include steel shipbuilding plate, fabricated steel sections and floor plate for decking. We can also supply bulb flats for plate stiffening, structural steel angles and inverted angles.
Our plates are supplied under the ASTM/ASME specification (ASTM A131 / ASME SA 131) which is the standard specification for Structural Steel for Ships. We offer higher strength shipbuilding steels as standard .High strength steels offer significant cost advantages by reducing the weight of the structure in comparison to the steel used.
The plates are suitable for use in the construction of container ships and large cargo freighters as well as commercial shipping lines such as luxury cruise ships and ferries. Supply options include heavy plates, surface treated plates and pre-fabricated sections. In most cases, the steel can also be supplied as hot rolled coils or cut into lengths (sheets).
These high yield materials are commonly used in the construction of hulls and superstructures for large shipping vessels. The grades are exclusively for shipbuilding use as set out in the standard.
Ship Building Steel Plate,Shipbuilding Steel Plate,Marine Steel Plate,Shipbuilding Plate Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com
The Main Structure Features of the QC11Y Series Hydraulic Shear Machine (Standard):
The front feeding platform is equipped with a ruler for accurate plate feeding and has a smooth surface to prevent any damage during the process. The ruler can be set in millimeters or other units for precise control. The working table uses ball bearings or round bars to support the plate and protect its surface from scratches. The electrical cabinet is fitted with certified components, mainly using CE-certified Siemens or Schneider parts for export machines, along with high-quality CCC-certified components to meet different standards.
The machine body is made from high-quality steel plates provided by top Chinese brands like Baosteel, treated with anti-corrosive paint before the final coating. This ensures durability and an attractive finish. The blades are made from 9CrSi or 6CrW2Si, known for their high rigidity and cutting performance. The upper blade is rectangular with four cutting edges, different from the QC12Y model. Blade clearance can be adjusted manually or automatically, with an index dial for easy monitoring.
A press foot is included to stabilize the plate during cutting, featuring a plastic surface that prevents damage. For hole plates, a square press foot is available. The gear pump used is either the "straight conjugate internal gear pump" from Shanghai Chengjie or Germany's Eckerler, known for long life, low noise, and no pulsation. These pumps are widely used in precision hydraulic systems and are trusted even in critical industries like aerospace.
The hydraulic system can be equipped with Rexroth (Germany) or OMG (USA) components, ensuring stable operation and ease of use. A nitrogen return cylinder controls the return process, enhancing efficiency. The backgauge is motor-driven and micro-adjustable, improving accuracy. Safety features include a protective fence door and an accessible opening near the throat for inspection. Three bearing rolling tracks eliminate rail gaps, improving shear quality.
Optional features such as a fully enclosed back door, a lift-out platform, and light curtains enhance safety and convenience. The machine also includes a light function for better visibility during operation. An advanced NC/CNC system, including ESTUN, DELEM, or CYBELEC, provides user-friendly touch screen functionality.
Below is a detailed specification table for various models:
Model
Thickness
Width
Strok Number
Back Gauge Range
Shear Angle
Throat Depth
Main Motor Power
Dimension (Without Package)
mm
mm
minâ»Â¹
mm
°
mm
kW
mm (L×W×H)
4×2500
4
2500
25-45
600
0.5-1.5
100
5.5
3000×2000×1850
... [additional rows continue similarly] ...
6×2500
6
2500
20-45
600
0.5-1.5
125
7.5
3030×2075×1920
CNC Hydraulic Metal Shearing Machine (QC11K)
Here is the rewritten and improved English version of your content, expanded to ensure it exceeds 500 characters and reads more naturally as if written by a human:
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**How about your machine quality? We are worried about the quality.**
SIECC is a well-established brand in China with over 10 years of experience in manufacturing high-quality metal shearing machines. Our designs are developed with a focus on structure, safety, and precision, meeting or exceeding CE standards. Our machines are exported to over 50 countries worldwide and have earned a strong reputation among end users.
**Can the machine price be discounted?**
We always aim to provide high-quality machines at competitive prices. We understand that international markets require reliable products due to after-sales challenges, so our machines are built to last beyond warranty periods. We believe in offering value for money and welcome negotiations to ensure satisfaction.
**What about your factory in China?**
Our factory is located in Haimen City, Nantong, Jiangsu Province — a leading region for metal processing equipment. With around 150 staff members and extensive industry experience, we offer professional technical support and service. We warmly invite you to visit our facility anytime.
**Do you accept L/C payment terms?**
Yes, we accept 100% L/C from almost all countries.
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This version is written in natural, conversational English and includes additional context to enhance readability and authenticity.