Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 42CrMo, 18CrNiMo7-6 ,4140, 40CrNiMo |
| Production Lead time | 30 days |
| Machining | CNC Rough Machining or Forged Blanks |
| Heat Treatment | Normalizing and tempering + Quenching |
| Forging Tolerance | +/-0.1mm |
| Testing | UT & MT |
| Oil Protecting | Provided |
| Hardness | 200-400 HB as Demand |
| HS Code | 84834999 |
| Brand Name | Tiangong |
| Model Number | TG-005 |
| Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China |
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Product Specification
| Payment Terms | ,T/T | Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days | Packaging Details | Pallet |
| Material | 42CrMo, 18CrNiMo7-6 ,4140, 40CrNiMo | Production Lead time | 30 days |
| Machining | CNC Rough Machining or Forged Blanks | Heat Treatment | Normalizing and tempering + Quenching |
| Forging Tolerance | +/-0.1mm | Testing | UT & MT |
| Oil Protecting | Provided | Hardness | 200-400 HB as Demand |
| HS Code | 84834999 | Brand Name | Tiangong |
| Model Number | TG-005 | Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China | ||
| High Light | 42CrMo Steel Hollow Cylinder ，Forged Steel Hollow Cylinder 100kg ，Die Forging stainless steel cylinders | ||
42CrMo Forged Steel Hollow Cylinder 100kg To 7000kg Open Die Forging
Hollow Shaft Forgings :
Our forged hollow shafts are designed for high-performance applications where reduced weight and excellent torsional strength are critical. Manufactured through open die forging or customized mold forging, our hollow shafts offer superior mechanical properties, structural integrity, and dimensional precision.
We produce hollow shafts ranging from 100 kg to 7000 kg, with customized dimensions and internal diameters available upon request.
Key Features:
Our forged hollow shafts are designed for high-performance applications where reduced weight and excellent torsional strength are critical. Manufactured through open die forging or customized mold forging, our hollow shafts offer superior mechanical properties, structural integrity, and dimensional precision.
We produce hollow shafts ranging from 100 kg to 7000 kg, with customized dimensions and internal diameters available upon request.
| Material | 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35# 45# 20CrMnTi 20CrNi2Mo 20CrMnMo 18CrNiMo7-6 42CrMo 20CrNo 35CrMo |
| 5 TON, 8 TON, 12 TON Hydralic hammer | |
| Apply for | Transmission main shaft is used for driving force |
| Forging+heat treatment+rough machining+finish machining | |
| Forging ratio | ≥3 |
| Applicable standard | ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
| Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
| Delivery terms | Rough machining(N+T); finish machining(Q+T) |
| Test equipment | Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service | Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
About Our Forging Factory
With more than 30 years of forging experience, we are a leading manufacturer of open die and closed die forgings in China, focusing on components for industrial gearboxes, wind turbines, and port machinery. Our forging range covers parts from 100kg up to 7000kg, produced with 5T, 8T, and 12T electro-hydraulic hammers.
We are the largest long-term supplier to Nanjing High Speed Gear (NGC), providing high-performance gear shafts and blanks with stable quality. We are also the primary forged wheel supplier for ZPMC (Shanghai Zhenhua Port Machinery), with our products exported globally with ZPMC’s port equipment. In the wind energy sector, we supply forged components to leading companies such as Goldwind, Mingyang, and Southern Aerospace.
We operate a fully equipped in-house testing laboratory to ensure quality, and offer optional rough machining, heat treatment, and UT/MT inspections. Our manufacturing is certified under ISO 9001, ISO 14001, and ISO 45001 standards.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
27.5 million -28 million
Employee Number:
135~150
Ecer Certification：
Verified Supplier
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 ... 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 ...
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