Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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Heavy Duty Forged Cylinder – Open Die Forging – Custom Alloy Steel 100kg to 7000kg
Our Heavy Duty Forged Cylinders are produced using advanced open die forging technology, ensuring excellent internal soundness, grain flow, and superior mechanical properties. Manufactured from high-quality alloy steels such as 42CrMo, 42CrNiMo, 18CrNiMo7-6, and C45, these forged components are ideal for use in hydraulic systems, gearboxes, marine shafts, pressure vessels, and wind turbine main shafts.
Each forged cylinder can be supplied in rough machined or fully CNC machined condition according to your drawings, with weights ranging from 100kg to 7000kg. We offer custom forging services, including heat treatment, UT/NDT inspection, and mechanical testing. Our cylinders meet international standards including ISO, GB, and DIN and are trusted by OEMs in energy, offshore, and heavy machinery industries.
| Main Forging service Machine list: | sets | |
| Sample Inspection tester machines in the lab. | ||
| 1 | Spectrometer | 1 |
| 2 | Impact testing machine | 1 |
| 3 | Tensile testing machine | 1 |
| 4 | Metallographic microscope | 1 |
| 5 | Brinell hardness tester | 1 |
| 6 | Notch projector | 1 |
| 7 | Quenching test machine | 1 |
| 8 | high-precision flaw detector | 2 |
| Natural gas equipment | ||
| 1 | Natural gas furnace 15Ton | 6 |
| 2 | Natural gas furnace 20Ton | 1 |
| 3 | Natural gas furnace 30Ton | 3 |
| 4 | Natural gas furnace 40Ton | 1 |
| Sawing machine | 16 | |
| 5 | 5 Ton electro-hydraulic forging hammer | 1 |
| 6 | 8 Ton electro-hydraulic forging hammer | 1 |
| 7 | 12 Ton electro-hydraulic forging hammer | 1 |
| operation machine | ||
| 8 | 10 Ton loader machine | 1 |
| 9 | 15 Ton loader machine | 1 |
| 10 | 20 Ton Loader machine | 1 |
| Material carrier machine | ||
| 12 | 10 Ton material carrier | 1 |
| 13 | 20 Ton material carrier | 1 |
| 14 | Heat Treatment electric furnace 5Ton | 1 |
| 15 | Heat Treatment electric furnace 15Ton | 1 |
| 16 | Heat Treatment electric furnace 50Ton | 1 |
| 17 | Heat Treatment electric furnace 60Ton | 1 |
| 18 | Heat Treatment electric furnace 60Ton | 1 |
| 19 | horizontal lathe, vertical lathe,CNC vertical lathe,machining equipment | 31 |
Available Shapes:
Cylindrical forgings: solid round bars or hollow cylinders
Forged shafts: straight, stepped, or spline shafts
Gear blanks: round discs with or without hubs, pre-machined or rough
Block forgings: rectangular, square, or custom-shaped blocks for heavy-duty applications
Material Grades (examples):
42CrMo / 42CrNiMo / 18CrNiMo7-6 – high-strength alloy steels for mechanical parts
20CrMnTi – carburizing and quenching steels for gears
Key Features:
Custom forging weight range: 100 KG to 7000 KG
Superior mechanical properties after heat treatment
Uniform internal structure, no porosity or segregation
100% ultrasonic tested, with optional third-party inspection
CNC pre-machining and surface treatment available upon request
Applications:
Wind power equipment (shafts, gear blanks)
Heavy machinery and transmission systems
Mining, port, and oilfield equipment
Power generation and shipbuilding industries
Hydraulic systems and pressure equipment
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)
What is the typical weight spectrum of the forged components you manufacture? Our forging capabilities encompass a range of components weighing from 100 kilograms up to 7 metric tons.
Do you handle downstream processing such as thermal treatment and material removal? Indeed, we provide comprehensive in-house services for heat treatment, encompassing both preliminary and final machining operations.
Which industrial sectors are the primary beneficiaries of your forged products? We cater to a diverse array of critical industries, including wind power generation, heavy machinery manufacturing, port infrastructure, power transmission systems, and various others.
What are the typical timeframes for the completion and dispatch of orders? For items readily available in our inventory, the standard lead time is approximately 30 days. For custom-manufactured orders, the timeframe generally spans 40 to 45 days.
Could you provide information on the geographical location of your manufacturing facility and shipping hub? Our production plant is situated in Changzhou City, strategically located near Shanghai, and we utilize the Port of Shanghai for our shipping logistics.
Request a Quotation
To receive a tailored price assessment and a comprehensive engineering solution designed to meet your specific needs, please forward your detailed technical drawings and requirements to our dedicated team. Our experienced engineers will promptly review your submission and provide you with a professional quotation and a suitable solution.