Sign In | Join Free | My chinacomputerparts.com
China Luoyang Zhongtai Industrial Co., Ltd. logo
Luoyang Zhongtai Industrial Co., Ltd.
Our Values Trust and reputation are a channel in the success and prosperity of ZTIC. Through valued employee loyalty and expertise ZTIC gives its customers a high degree of confidence. Through a
Verified Supplier

2 Years

Home > Mill Girth Gear >

Large Diameter 16000mm Mill Girth Gear For Rotary Kilns And Grinding Mills

Luoyang Zhongtai Industrial Co., Ltd.
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment

Large Diameter 16000mm Mill Girth Gear For Rotary Kilns And Grinding Mills

Brand Name : ZTIC

Model Number : Customized

Certification : ISO/CE

Place of Origin : Henan, China

MOQ : 1 Set/Sets

Price : $20,000.00 - $250,000.00 / Set

Payment Terms : T/T, L/C

Supply Ability : 2000 Set/Sets per Year

Delivery Time : 1-2months

Packaging Details : Simple packaging for ball mill rotary kiln girth gear

Girth Gear : Rotary kiln and ball mill Girth Gear

Material : Steel

Diameter : Min 100 mm to 16000mm Girth Gear

Weight : Max 120 MT single piece

Module range : 10 Module to 70 Module

Standards/Certificates : UNI EN ISO,AWS, ASTM,ASME, DIN

Maximum module : 45 by hob

Applications : Cement and minerals industries

Gear Cutting Machines : 16m CNC Hobbing Machine

Contact Now

Product Description
Ball mill rotary kiln girth gear
Luoyang Zhongtai is the casting & forging center in central-south China, possessing 50t electric arc furnace, 60t LF ladle refining furnace, and 60t VD/VOD refining furnace, etc. We can pour 350t liquid steel one time and yields more than 200,000t of high quality liquid steel and can produce the high quality steel of more than 260 steel grades such as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting, gray casting, graphite cast iron and non-ferrous casting is 200t, 30t, 20t and 205t separately.
Specifications Of Gear:
No.ItemDescription
1Diameter≤15m
2Module≤45
3MaterialCast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel
4Structure FromIntegrated, Half to Half, Four Pieces and More Pieces
5Heat TreatmentQuenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering
6Tooth FormAnnular Gear, Outer Gear Ring
7StandardISO, EN, DIN, AISI, ASTM, JIS, IS, GB

Inspection And Test Outline Of Girth Gear:

No.ItemInspection AreaAcceptance CriteriaInspection StageCertificates
1Chemical
Composition
SampleMaterial RequirementWhen Smelting
After Heat Treatment
Chemical Composition
Report
2Mechanical
Properties
Sample (Test Bar on the Gear Body)Technical RequirementAfter Heat TreatmentMechanical Properties
Report
3Heat
Treatment
Whole BodyManufacturing StandardDuring Heat TreatmentHeat Treatment Report
Curves of Heat
Treatment
4Hardness
Test
Tooth Surface, 3 Points Per 90°Technical RequirementAfter Heat TreatmentHardness Teat Report
After Semi Finish
Machining
5Dimension
Inspection
Whole BodyDrawingAfter Semi Finish

Machining
Dimension Inspection
Report
Finish Machining
6Magnetic Power Test (MT)Tooth SurfaceAgreed StandardAfter Finish Gear
Hobbing
MT Report
7UTSpokes PartsAgreed StandardAfter Rough MachiningUT Report
After Welded
After Semi Finish
Machining
8PTDefect AreaNo Defect IndicatedAfter Digging
After Welded
PT Record
9Mark InspectionWhole BodyManufacturing StandardFinal InspectionPictures
10Appearance InspectionWhole BodyCIC's RequirementBefore Packing (Final Inspection)
11Anti-rust
Inspection
Whole BodyAgreed Anti-rust AgentBefore PackingPictures
12Packing
Inspection
Whole BodyAgreed Packing FormDuring PackingPictures

Facilities For Manufacturing Gear Ring:

NoItemDescription
1Smelting & Casting Capability

40t, 50t, 80t Series AC Electric Arc Furnace
2×150t, 60t LF Ladle Refining Furnace
150t, 60t Series VD / VOD Furnace
20×18m Large Pouring Facility

We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots.

We can produce the high quality steel of more than 260 steel grades as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement.

The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately.

2Forging CapabilityThe only one in the word, the most technologically advanced and the largest
specification18500t Oil Press, equipped with 750t.m forging operation machine
8400t Water Press
3150t Water Press
1600t Water Press
Φ5m High Precision Ring Mill (Germany)
Φ12m High Precision Ring Mil
We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy.
Max. Diameter of rolled ring will be 12m.
3Heat Treatment Capability

9×9×15m, 8×8×12m, 6×6×15m, 15×16×6.5m, 16×20×6m, 7×7×17m Series Heat Furnace and Heat Treatment Furnaces

φ2.0×30m, φ3.0×5.0m Series Heat Treatment Furnaces
φ5.0×2.5m, φ3.2×1.5m, φ3.0×5.0m, φ2.0×5m Series Carburizing Furnaces &
Nitriding Furnaces & Quenching Bathes
φ2.0×30m Well Type CNC Electrical Furnaces
Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace
Double-frequency and Double-position Quenching Lathe of Pinion Shaft

4Machining Capability

1. ≥5m CNC Heavy Duty Vertical Lathes

12m CNC Double-column Vertical Lathe
10m CNC Double-column Vertical Lathe
10m CNC Single-column Vertical Lathe
6.3m Heavy Duty Vertical Lathe
5m CNC Heavy Duty Vertical Lathe


2. ≥5m Vertical Gear Hobbing Machines
15m CNC Vertical Gear Hobbing Machine
10m Gear Hobbing Machine
8m Gear Hobbing Machine
5m Gear Hobbing Machine
3m Gear Hobbing Machining


3. Imported High-precision Gear Grinding Machines
0.8m~3.5m CNC Molding Gear Grinding Machines


4. Large Boring & Milling Machines
220 CNC Floor-mounted Boring & Milling Machine
200 CNC Floor-mounted Boring & Milling Machine
160 CNC Floor-mounted Boring & Milling Machine


Item

Structural features

Processing measure

Test content

Girth Gear

(1)GS42CrMo4Alloy Steel (corporate proprietary standards)

HB 220~240

(2)semi-structured, Y-Spoke
(3)Helical
(4) reasonable sealing and alignment structure of alloy steel (corporate proprietary standards)
(1) outer steel refining (R-H argon and vacuum treatment)
(2) proprietary cold mold hanging sand technology to ensure the casting, the teeth dense
(3) normalizing (proprietary technology) to ensure that the tooth surface hardness
After
(4)rough hobbing, release time, repair the joint surface, then fine roll
(5) proprietary homemade hob fine hobbing
(1)castings mechanical properties and chemical composition (internal standard)
(2) roughing after sonic testing
(3)semi-finishing, finishing after ultrasonic testing and magnetic particle inspection
(4) tooth surface magnetic particle inspection, hardness test
(5)tooth tolerance check
(6) the factory assembly load test to check the accuracy of the size of gear

The technical requirements of a large ZTIC Gear ring:
1) is pretreated before normalizing surface hardening treatment, the hardness should HB210 ~ 250; mechanical performance are the ultimate strength Rb 690MPa, yield stress Rs 490MPa, elongation D5 11%, reduction of area W 25% , impact toughness Ak 30J; teeth induction hardened, hardness HRC50 ~ 55; effective hardened layer depth 3 ~ 5mm.
2) overall ultrasonic flaw detection, internal quality should meet two requirements GB7233-87 standard requirements; tooth and fillet magnetic particle inspection, quality should meet two requirements GB/T9444-88 standards.
3) Note the casting is not rounded R5 ~ R10.
4) Tooth chamfer at both ends and 1 45b.5) by two and a half ring gear tooth width of each ring coupling along the edge of a whole ring made with high strength bolts, combined with the tooth surface must be at the bottom center.
2 large ring gear manufacturing process
2.1 of rough
Steel casting blank is provided by CITIC Heavy Machinery Co., Ltd. Heavy Forging plant, run by GB11352-89 standard specifies requirements for modeling according to the casting process, smelting, casting, hit boxes, cleaning, dressing castings;. During inspection and acceptance by the drawings and Technical requirements for steel blank
Checks, according JB/T6402-92 standards issued after acceptance
Down procedure.
2.2 roughing
Crossed by drawing and stay out allowance, alignment, connection, processing both inside and outside the circle, combining face milling, drilling and other processes.
2.3 Exploration injury
Overall ultrasonic flaw detection, internal quality should meet the two requirements of GB7233-87 standards.
2.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering treatment, provide a good organization for subsequent surface hardening; press drawings deformation of the half ring gear inspection after heat treatment.
2.5 Machining
First two and a half ring is made with high strength bolts connecting the ring as a whole, the overall process by drawing a circle Quannei Wai teeth and upper and lower end, and then drawing and machining milling process requirements.
2.6 Elimination of processing stress
The overall ring annealed to eliminate stress.
2.7 overall ring surface hardening
IF along the alveolar tooth surface induction hardening, hardness HRC50 ~ 55, effective hardened layer depth 3 ~ 5mm.
2.8 Final inspection
First, the detection frequency quenching, the hardness after tempering ring gear cogging meets the requirements of the drawings; secondly, to detect whether the maximum outer diameter larger size D6944 as the deformation 3mm, the mechanical correction required until qualified; Thirdly, tooth and fillet magnetic particle inspection, quality should meet two requirements GB/T9444-88 standard requirements; Finally, according to the drawings and technical requirements for final inspection.



Product Tags:

16000mm Mill Girth Gear

      

Mill Girth Gear For Rotary Kilns

      

16000mm kiln girth gear

      
China Large Diameter 16000mm Mill Girth Gear For Rotary Kilns And Grinding Mills factory

Large Diameter 16000mm Mill Girth Gear For Rotary Kilns And Grinding Mills Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: Luoyang Zhongtai Industrial Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)