42CrNiMo Precision Free Forgings 42CrMo Excavator Breaker Hammers Forgings

42CrMo, 42CrNiMo Precision Free Forgings for Excavator Breaker Hammers – Manufacturer Direct.

We specialize in the production of high-performance forged parts for hydraulic breakers, engineered to endure extreme impact loads and abrasive conditions commonly found in construction, demolition, and mining operations. Using premium-grade carbon and alloy steels, our forgings are crafted through controlled forging and heat treatment processes, ensuring outstanding strength, wear resistance, and dimensional precision.

With over five years of stable cooperation, we have served as a trusted long-term forging partner to a leading Korean heavy machinery manufacturer. Our components consistently deliver proven reliability and fatigue resistance in high-demand applications, reinforcing our reputation for quality and dependable lead times.

Key Features:

• Material Grades:

  • 42CrMo: Excellent strength, toughness, and hardenability, suitable for high-impact applications.

  • 42CrNiMo: Enhanced fatigue resistance and superior mechanical properties for demanding environments.

• Forging Process:
  Open-die (free) forging with controlled grain flow to improve structural integrity and reduce internal stress.

• Precision Machining:
  Forgings are supplied as rough machined or semi-finished blanks, with tight tolerance control to meet OEM specifications.

• Heat Treatment Options:
  Quenching & tempering, normalization, or customized thermal treatment based on your mechanical property requirements.

Applications:

• Hydraulic breaker pistons

• Front heads and back heads

• Cylinders and tool holders

• Wear-resistant components in rock breakers and demolition tools

Advantages:

• Manufacturer-direct pricing with no middlemen

• ISO-certified process control from raw material to final inspection

• Support for customized drawings and technical consultation

• Consistent export supply to Korea, Southeast Asia, and European clients

If you're looking for a proven forging partner for hydraulic breaker parts or other impact-resistance components, we’re ready to support your needs with quality, speed, and expertise.

The steel forgings production flow:

Raw material steel ingot into warehouse(test the chemical composition) → Cutting→ Heating(Furnace temperature test) → Heat treatment after forging(Furnace temperature test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal dimension, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.

Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.

2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.

3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.

4. What is your production lead time?

With stock: Around 30 days

Without stock: 40–45 days

5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.

Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.

About CHANGZHOU TIANGONG

We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet our customers’ requirements.

Our customers and partner value our products and services for 2 reasons: excellence and reliability.

Key figures

A. Over 30 years professional free forging manufacturing experience

B. The company covers an area of 71,000 square meters

C. The construction area of the production workshop is 12,000 square meters

D. Total number of employees of 158

E. 28 engineering and technical personnel

F. 59 skilled workers

G. Annual production capacity is 38,000 tons

H. Steel throughput can reach 56,000 tons

Efficient and reliable solutions for customers

Industrial sector application

We design and manufacture forged parts for all industrial areas applying our experience and unique professionalism and taking the specific requirements of the markets into account. This has led us to become a forging industry leader in all industrial segments and collaborating with leading companies.

A. Wind power generation

B. Port Heavy Machinery

C. Mining

D. Ship Building

E. Chemical industrial

F. Oil industrial

G. Metallurgical industry

H. Hydraulic industry

I. Other high-end industrial equipment, gearbox body, parts and etc.

Customized solutions

Modular processes allow us to engineer a solution for almost every industrial application requiring free forged parts. Our modularity means flexibility, a wide range of options, faster delivery, and most important of all, competitiveness.

All our products and production process have been designed to assure excellent, reliable and long lasting unique mechanical performances, resulting in reduced operating costs and long life.

With a wide range of products and a significant experience gained in most industrial applications, we can also provide complete engineering recommendation for customers.