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High precision bicycle chainwheel and crank for bicycle parts
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Product Details
Material: | Other, Aluminium,carbon steel,stainless steel,Titanium ,etc., carbon steel,aluminium | Crank Length: | Other, OEM | Chainwheel Teeth: | Other, OEM |
Use: | BMX, Cruisers, Other, Mountain Bikes, Road Bicycles, BMX, Cruisers, Kids' Bikes, Mountain Bikes, Road Bicycles | Brand Name: | njprecisionengineering | Model Number: | OEM |
Place of Origin: | Jiangsu, China |
Product Description
1.Vcnc milling
the workable length | 5-1000mm |
the workable diameter | 5-500mm |
the tolerance | 0.005mm |
the operation system of the machines | FANUC |
R & D engineering team design the technical drawings | STP,IGS,PRT,AUTOCAD,PDF...... |
3D dimensions inspection | CMM |
2.CNC turning
the workable length | 5-1000mm |
the workable diameter | 5-500mm |
the tolerance | 0.01mm |
the operation system of the machines | FANUC |
R & D engineering team design the technical drawings | STP,IGS,PRT,AUTOCAD,PDF...... |
2D dimensions inspection | caliper,micrometer,altitude instrument,run-out instrument,roughness instrument....... |
3.The fabrication
Our plastic injection machines could do the mold injection parts and the assembles from 0.005kgs to 1.5kgs,we are also experienced in the stamping,the bending,and the welding,our equipments are advanced in these fields,so we are always doing the exellent fabrication job.In the fabrication,we often use the melting welding,the pressure welidng,and the laser welding,the experienced technicians do the melting welding perfectly,the welding seam is straight,there are no gaps,no holes,no welding slags.All of our welding workpiece could pass the air-tight test successfully,our technicians also do well in the pressure welding and the laser welding,the workpiece is strong and beautiful. |
4.The Mechanical Assemble
The advanced euqipments,the professional R & D engineering team,and the complete inspection facilities enable us to the mechanical assemble with the high good quality level,the mechanical assembles have the good function and the long usage time. |
5.The Surfact treatment
plating | 3+Cr,enviromental,anti-corrosion maximum 480 hours salt spray test |
coating | powder coating,electrial coating,maximum 480 hours salt spray test |
painting | enviromental EXPOSY painting,cross-cutting test |
polish | satin polish,mirror polish,electrial polish, maximum 1200 grid |
Dacromet | eviromental,anti-corrosion,maximum 560 hours salt spary test |
Anodization | tumble,shot blast,sand blast.....,various color,maximum 480 hours salt spray test |
Nylok | tight-locking,enviromental,5 million times |
heat treatment | adjust the mechanical properties,temper,normalization,quench...... |
6.The Variousl Material
stainless steel | ss304,ss304L,ss316,ss316L,SS430,SS201...... |
aluminium | 7075,6061,6063,5082,5051,2014....... |
brass | H62,H58,H59...... |
steel | C20,C45,C60,C35...... |
steel alloy | 25CrMo,42CrMo,25Cr,40Cr,Q345,11SMn30...... |
iron cast | QT600,QT250,HT450,HT150...... |
titanium alloy | GR2,GR5,GR7,GR9...... |
tungsten alloy | WuNiFe alloy,Carbide Wolfram...... |
All the materials are with the material quality certificate,we are familiar with the international material norm and the material substitute grade |
7.The description for High precision bicycle chainwheel and crank for bicycle parts
Description | High precision bicycle chainwheel and crank for bicycle parts |
material | 45# steel |
process | forging+cnc machining+deburrs+black coating |
tolerance | +/-0.01mm |
surface | deburrs,degrease,chamfer |
service available | OEM & ODM |
quality control | 100% inspection before packing ,ISO9001 |
delivery time | 15-25 days after confirm the drawing |
Packing | Inner:bubble poly bag,outer:5 layers ctn box or poly wooden box/pallet |
logistics service | sea,air,express,EXW,FOB,CIF,DDU,DDP |
warranty | 100% refund or replacement for NOK pcs |
All the product pictures on our website can be customized ! |
High precision bicycle chainwheel and crank for bicycle parts |
ISO9001-2008 |
SGS |
Material Certificate |
CIQ |
High precision bicycle chainwheel and crank for bicycle parts | |
R&D service | Drawing Design service |
Samples service | bulk production service |
Inspection service | packing &shipping service |
1.Company profile:
2.Factory workshop:
Packing and shipping for High precision bicycle chainwheel and crank for bicycle parts |
Inside: bubble bag |
Outside: carton case or poly wooden case |
2.Shipping |
small batch by courier , large batch by sea or air |
What are our advantage? |
1.Price: factory competitive price |
2.Service: R&D ODM&OEM |
3.Quality:ISO-9001,100% QC inspection before packing,0 defects |
4.Fast delivery: 15-25 days after confirm the drawings |
5.business co-operation cultural: win-win,non-disclosure agreement,intellectual property protection |
If you want to get much more information regarding High precision bicycle chainwheel and crank for bicycle parts,you please feel free to contact with us as following at any time,we'll reply to you definitely within 8 hours! |
Contact Us
- Nanjing Precision Engineering Co., Ltd.
- Contact namecindy fan
- Phone86-25-52237873
- AddressRm 1220b,2# BLDG,No 281,Zhongshan N.rd,Nanjing,China Nanjing,Jiangsu
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