Casting And Forging Shaft Gear Shaft Hollow Shaft Pinion Shaft
Product Description
Hollow shaft
Ball mill Hollow shaft Brief Introduction and Application:
Hollow shaft is an important part of ball mill. Its function is bearing the rotary of ball mill shell. Technically, hollow shafts
should not have below holes and sand holes on the neck of spherical tile and circular arc neck of shell connection. When
producing, spherical tile needs grinding after part machining, to secure precision and smooth finish. This requires very high standard of casting technology.
ztic's hollow shaft usually constructed from 4140,40Cr,45#,etc, of course customerized material accepted, after forging, rough machine, heat-treatment, finish machining process, shaft have good inner micro structure with excellet mechanical property and hardness, degree of roughness can be smooth to 0.8.
Our company can Professionally manufacture the mill and the hollow shaft of the ball mill. The powerful casting and forging, heat treatment,machining ability, strict quality, process control method and perfect detection and experimental means make the mill shaft with a high reputation and exported overseas.
| Product name |
Hollow shaft |
| Material |
ZG45,ZG42CrMo,35CrMo,ect |
| Structure |
Casting or forging |
| Process |
Lathing, milling,grinding |
| Max.diameter |
2000mm |
| Max.length |
8000mm |
| Max.tolerance |
±0.3 |
| Type |
According to drawings |
| Certification |
SGS |
Features
Ball mill Hollow shaft Advantages:
1. high quality steel
2. large R fillet
3. high strength bolts and cylinder connection
4. molten steel refining furnace (blowing argon and R-H vacuum treatment)
5. using special sand, strictly control the pouring temperature and casting speed
6. bolster bearing processing, to ensure that the coaxial degree of end mouth and roughness
7. casting rough mechanical properties and chemical composition (internal control standard)
8. ultrasonic examination after rough machining
9. ultrasonic detection and magnetic particle inspection after finishing |
Pinion shaft has three types:
(1) With the cone with cylinder with ladder shaft, such as domestic, the former Soviet union, G type crusher, simmons standard and 600 short head type crusher;
(2) With the cone cylinder with no ladder shaft, such as rotary disc crusher and simmons short head type crusher;
(3) Cooperate with cone USES cone shaft, such as AC at the bottom of the single-cylinder hydraulic cone crusher, the top Japanese chestnut the blacksmith single-cylinder hydraulic cone crusher.
| Specification |
Machining Scope |
| Size |
OD Max 16m |
| One Piece of Gear: OD Max 13m |
| Assemble Gear: According to drawings |
| Hobbing Modulus |
10-60 |
| Milling Modulus |
Up to 120 |
| Spiral Modulus |
1-15 |
| Accuracy Grade |
Milling: 6 grade |
| Hobbing: 8 grade |
| Material |
Alloy steel: 42CrMo4, 34CrNiMo6 etc. |
| Carbon steel: C45E, 1030 |
| Carburizing steel |
| Quenched and tempered steel |
| Heat treatment |
Quenching&Tempering, Surface Quenching |
Product Parameters
Shaft
| Material Standard |
GB, EN, DIN, ASTM, GOST, JIS, ISO |
| Material Processing |
Forging, Casting, Welding |
| Heat Treatment |
Annealing, Normalizing, Q&T, Induction Hardening |
| Machining Tolerance |
Max. 0.01mm |
| Machining Roughness |
Max. Ra 0.4 |
| Module of Gear |
8-60 |
| Accuracy of Teeth |
Max. ISO Grade 5 |
| Weight/Unit |
100kgs - 60 000kgs |
| Application |
Mining, Cement, Construction, Chemical, Oil Drilling, Steel Mill, Sugar Mill and Power Plant |
| Certification |
ISO 9001 |
| OEM AND ODM SERVICE ARE OFFERED |
Shaft production process and quality control plan
There are 9 steps in total, which will take approximately 62 days:
1. Casting+forging (1 month)
2. Tempering (3 days)
3. Inspection (1 day)
4. Rough turning of each surface (1 week)
5. Tempering treatment (3 days)
6. Semi precision turning (1 week)
7. Flaw detection (1 day)
8. Precision turning (1 week)
9. Surface quenching (3 days)
Production criteria
1.The design, the manufacture, the acceptance standard
Product uses the advanced production, processing, manufacturing,to meet the manufacturing needs. Parts processing, production must reach the seller drawings, indicated size and geometrical tolerance requirement, the assembly must achieve its assembly accuracy requirements. The materials use products of the large famous manufacturers, requiring that wear-resisting, use cycle is long; Equipment out of factory should be strictly inspected and tested in factory.
2. Product in the manufacture is strictly according to the seller normal production process technical requirements:
The product to be comply with drawings and instruction in the technical requirements and provisions.
The materials should be in accordance with the provisions of the material standard performance requirements.
Mechanical processing are according to the rules of "cutting processing general technical requirements" (JB/T5000.9-1998) to be manufactured and accepted.
Carbon steel pieces of welding are according to the rules of "welding general technical requirements" (JB/T5000.3-1998) to be manufactured and accepted.
Castings are according to the rules of "casting general technical requirements" (JB/T5000.6-1998) to be manufactured and accepted.
Forgings are according to the rules of "forging general technical requirements" (JB/T5000.8-1998) to be manufactured and accepted.
Weld should be cleaned and grinded, the surface should be smooth, the welding must comply with the national standard "welding general technical conditions" (JB/ZQ4000.3-86).
3. How to control quality:
Material control: (1). Import the best material to produce. (2). Test chemical composition according to ISO9001
Technical: According to drawings and technical requirements to design the production process, heat treatment process, machining process, and our inspector execution for each process according to the entire production process in strict.
Inspect: We have the inspector at each process, and do the final inspect before delivery.
Records: Testing record of material, pattern making record, production process record, heat treatment record and drawing, machining record, inspecting record, testing record and final inspecting record.
4. Product acceptance and inspection items as follows:
(1). All the parts are assembled firmly, the components high precision assembled;
(2). Welding, casting parts quality and the product surface appearance quality are according with industry standards and norms;
(3). Product configuration are accord with the requirement of the buyer;
(4). Drawings are conform to the contract.
Company Profile
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