Free Forging Custom Forged Transmission Shaft For Heavy Equipment. This transmission shaft is produced through free forging, offering outstanding mechanical strength, structural integrity, and flexibility in size customization. Designed for heavy equipment and industrial power transmission systems, the shaft is made from high-grade alloy or carbon steel, such as 42CrMo, 4140, or 45#, ensuring excellent fatigue resistance and durability under heavy loads.
Free forging allows for the production of large, non-standard shafts with complex shapes and customized dimensions, making it ideal for construction machinery, mining equipment, port systems, and gear-driven industrial applications.
| Material |
4140,4130,18CrNiMo7-6,4340,4330,1.7225,35#
45#
20CrMnTi
20CrNi2Mo
20CrMnMo
18CrNiMo7-6
42CrMo
20CrNo
35CrMo |
| Forging Equipment |
5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for |
Transmission main shaft is used for driving force |
| Manufacturing Process |
Forging+heat treatment+rough machining |
| Forging ratio |
≥ 3.0 — Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation |
| Delivery terms |
Rough machining(N+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. |
| |
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 |
Key Features:
-
Forging Type: Open die / free forging
-
Material Options: 42CrMo, 4140, 45#, or as specified
-
Application: Heavy machinery, gearboxes, drive systems
-
Condition: Forged + Rough or finish machined + Heat treated
-
Customization: Length, diameter, splines, keyways, profiles per drawing
Advantages:
-
Superior grain flow and internal quality
-
Flexible sizing for oversized or non-standard parts
-
Enhanced performance under high torque and impact loads
-
OEM/ODM support with full inspection reports
These are the main inspection equipments:
We operate a fully equipped in-house laboratory dedicated to mechanical, chemical, and metallurgical testing. This allows us to perform real-time quality checks throughout the entire production process—from raw material selection to final inspection.
Our laboratory testing equipment includes:
Spectral Component Analyzer – for chemical composition analysis
Hydraulic Universal Testing Machine – for tensile and yield strength testing
Impact Strength Testing Machine with Cryogenic Tank – for room temperature and low-temperature impact testing
Brinell & Rockwell Hardness Testers – to assess surface and core hardness
Ultrasonic Flaw Detector – for internal defect detection (UT)Metallurgical Microscope – for grain structure and heat treatment evaluation
Program-Controlled Box Furnace – for heat treatment simulations and metallurgical testing
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.
Please send us the drawings and technique requirements, we will quote you soon.
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