Robust Steel Bronze Sleeve for Heavy Machinery Components

Product Description

Product Description

Custom Machined Parts

Custom-made parts are non-standard components manufactured according to customer drawings or technical requirements using processes such as CNC machining, turning, milling, and drilling.
We specialize in OEM/ODM custom manufacturing services, providing a one-stop solution from sample development to mass production.

Product Features

Product Advantages

Product Applications

Highly Customizable

Integrated Processes

Wide Material Applicability

One-stop service

Technical problem-solving capabilities

Flexible response

Automation and Robotics

Non-standard equipment

Molds and jigs

Automotive parts

High-end instruments/ Scientific research equipment

Specification

Parameter Category	Detailed Description
Typical Materials	Various steels, aluminum alloys, copper alloys, stainless steel, POM, nylon, special alloys, etc.
Main Processing Techniques	CNC turning, CNC milling, grinding, wire cutting, etc.
Casting precision	Up to IT7 grade (according to drawing requirements)
Surface Roughness	Minimum Ra0.8μm (according to drawing requirements)
Heat treatment	Annealing, Normalizing, Quenching and Tempering, Solution Treatment, Stress Relieving, Surface Hardening, etc.
Surface Treatment	Anodizing, blackening, galvanizing, spraying
Processing Range	From small precision parts to large complex components
Inspection Capabilities	Equipped with coordinate measuring machine, projector, etc., to ensure dimensional accuracy

Main Products

Production Process

Our production process is designed to ensure high dimensional accuracy, stable performance and consistent quality for precision machined components, from prototypes to mass production.

1. Technical Review & Engineering

Customer drawings, specifications and tolerances are carefully reviewed by our engineering team to confirm material selection, machining methods, datum references and process feasibility before production.

2. Material Preparation

Raw materials are selected according to customer requirements and international standards. Incoming materials are inspected for grade, size and traceability before machining.

3. Cutting & Blank Preparation

Materials are cut into blanks using sawing, band cutting or other suitable methods to prepare for CNC machining while minimizing material waste.

4. CNC Machining

Parts are machined using CNC milling, CNC turning or multi-axis machining centers to achieve precise dimensions, complex geometries and tight tolerances.

5. Secondary Machining Processes

Additional operations such as drilling, tapping, boring, reaming and grinding are performed as required to meet functional and assembly requirements.

6. Deburring & Finishing

All machined parts are deburred and edge-finished to remove sharp edges and burrs, ensuring safety, appearance and assembly reliability.

7. Surface Treatment

Surface treatments are applied according to customer specifications, including anodizing, electroplating, black oxide, polishing, sand blasting, painting or coating, to enhance corrosion resistance, wear resistance and aesthetics.

8. Inspection & Quality Control

Dimensional inspection, tolerance verification and visual checks are conducted using measuring tools such as calipers, micrometers and CMM to ensure compliance with drawings and quality standards.

9. Packing & Dispatch

Finished parts are carefully packed according to product characteristics to prevent damage during storage and transportation, and then dispatched as scheduled.

Company Profile

Qingdao Hailing Innovation Technology Co., Ltd is a professional manufacturer specializing in large welded steel structures and precision machining for industrial applications.

With a production facility covering 6,500 square meters and a team of over 60 skilled employees, we are equipped to handle medium-to-large structural fabrication projects with stable quality and reliable delivery. Our core strength lies in welding fabrication, supported by integrated CNC machining capabilities to provide complete structural and machined solutions.

Our in-house capabilities include laser cutting (sheet and tube), heavy-duty CNC bending, MIG/TIG/laser welding, robotic welding, CNC milling and turning, as well as surface finishing processes.

In addition to welded assemblies, we also provide machining services for various types of blanks, including castings, forgings and steel profiles, enabling us to support customers who require post-machining of structural or raw components.

Our manufacturing system and welding processes are certified in accordance with ISO 9001, ISO 14001, ISO 45001, ISO 22163, IATF 16949 and EN 15085-2, supporting high-standard fabrication for industrial, automotive and railway applications.

We focus on the production of machine bases, equipment frames, structural supports, conveyor and logistics system structures, as well as heavy-duty welded assemblies. At the same time, we manufacture precision-machined components according to customer drawings, ensuring dimensional accuracy and assembly compatibility.

From raw material control and welding inspection to CNC machining and final quality verification, each process is carefully managed to ensure structural strength, dimensional stability and consistent quality.

Qingdao Hailing Innovation Technology Co., Ltd is committed to long-term cooperation and strives to be a reliable fabrication and machining partner for customers worldwide.

Certifications

Packaging & Shipping

We have extensive experience in the packing, loading and transportation of both large welded structures and standard sheet metal parts.

For regular sheet metal components, we apply practical and efficient packing methods such as cartons, pallets, wooden cases and protective films to ensure surface protection and convenient handling. For large welded structures and heavy assemblies, customized packing solutions are adopted, including steel frame packing, reinforced wooden crates and secure fixing, according to product size and weight.

Our team is familiar with container loading, flat rack and open-top container solutions, and pays special attention to load balance, fixation and protection during transportation. All products are properly secured to minimize the risk of deformation or damage during long-distance shipping.

For project-based orders, packing and transportation plans can be prepared in advance to match production schedules and on-site installation requirements. From factory loading to final destination, we aim to provide safe, efficient and well-managed transportation solutions for customers worldwide.

FAQ

Products & Manufacturing
Q1: What products do you specialize in?
A: Our main products include large structural components, including machine bases, equipment frames, conveyor structures, logistics system components, and custom-made parts..

Q2: Do you support custom or OEM projects?
A: Yes. We mainly work on custom and project-based manufacturing, producing parts and assemblies according to customer drawings, specifications or samples.

Q3: What materials can you process?
A: We commonly process carbon steel, stainless steel, aluminum and other metal materials, depending on project requirements.

Q4: Can you handle both large structures and small sheet metal parts?
A: Yes. Our production setup allows us to manufacture both large welded structures and standard sheet metal components within the same project.

 

Production & Quality
Q5: Do you have in-house production capabilities?
A: Yes. We have in-house laser cutting, bending, welding, machining and surface finishing, which helps ensure stable quality and delivery control.

Q6: How do you ensure product quality?
A:Quality is controlled throughout the entire production process, from raw material inspection to welding inspection and final machining. Our manufacturing system operates under internationally recognized management standards, including ISO 9001, ISO 14001 and ISO 45001, ensuring stable and consistent quality.

Q7: Can you support project-based or industry-specific requirements?
A:Yes. We have experience in project-based manufacturing for industrial, automotive and railway-related applications.
Our processes comply with industry-specific standards such as ISO 22163, IATF 16949 and EN 15085-2, depending on project requirements.

Packaging & Logistics
Q8: How are products packed for shipment?
A:Standard sheet metal parts are packed with cartons, pallets, wooden cases or protective films. Large welded structures use customized packing solutions, such as steel frames or reinforced wooden crates, based on size and weight.

Q9: Can you handle oversized or heavy structures for transportation?
A: Yes. We have experience in packing, fixing and loading oversized and heavy welded structures, ensuring safety during long-distance transportation.

 

Orders & Payment
Q10: What is your minimum order quantity (MOQ)?
A: MOQ depends on the product type and project scope. Small batch and prototype orders are acceptable for custom projects.

Q11: What payment methods do you accept?
A: Payment methods can be discussed and confirmed according to order value and cooperation terms.

After-Sales & Support
Q12: Do you provide after-sales support?
A: Yes. We provide technical support and communication after delivery to assist with installation, assembly or usage questions.

Q13: How do you handle quality issues if they occur?
A: If any quality issues are identified, we will analyze the cause and provide corrective solutions through clear communication with the customer.