Black Anodized CNC Aluminum Parts OEM&ODM Support Screws / Stampings / Die Castings / Springs

Accept all kinds of aluminum parts processing-Gimbal Parts CNC Alu 6061 Large size OEM.

Aluminum surface treatment

※ Skim the following solution after chemical treatment: ammonium hydrogen fluoride3-3.5
Chrome oxide20 to 26 Sodium phosp hate2-2.5 strong Sulfuric acid 50 to 60 Boric acid 0.4 to 0.6
water 1000 in 25 -40 ° c.dip 4.5-6 min, that is, to wash, dry.This method The bonding strength is higher,

after processing 4 h.In cementing, applicable to epoxy resin and epoxy resin -Nitrile rubber.
※ Defatted processing.Use absorbent cotton to wipe wet solvent, after removal of oil pollution, again with

a clean cloth to wipe a few Time can be.Commonly used solvents for trichloroethylene, ethyl acetate,

acetone, butanone, gasoline and so on.
※ Skim the following solution after chemical treatment: concentrated sulfuric acid 27.3
Potassium dichromate 7.5 water 65.2 in 60 -65 ° c.dip10 to 30 min Rinse with water after take out,
Dry or in 80 ° c.The following drying;Or again after washing to dry in the following solution:
phosphate 10 is 3 water 20 This method is applicable to phenolic resin, nylon plastic, etc., the result is

good.

Describe

Primary Competitive Advantages

Experienced Staff
Guarantee/Warranty
Product Features
Product Performance
Prompt Delivery
Service

Small Orders Accepted
OEM
Many finishes choice
Many raw material

FAQ

Q: Can i buy some products from your company?
All our products are customized made according to customers' drawing or sample,not stock products

available.
Q: Can i get some sample for check quality?
Yes, single sample will charge sample fee.For batch production we will provide sample for check before

mass production,or we will charge sample fee first, will refund after batch production.
Q: If i need the parts urgent, how can you help?
We are alway here to help.our factory production time is flexible,we will prioritized arrange urgent order

to meet customer urgent requirement.
Q: I want to keep our design in secret?
Sure.

Display

Shanghai Lijin focuses on the Carbon Fiber industry and offers carbon fiber tubes, plates, and aluminum CNC services.

Being experienced in the carbon fiber applications for over 7 years, Shanghai Lijin manages customized production according to various industry standards. Shanghai Lijin started to keep in stock for some standard

sized and frequently ordered tubes and plates. This enables Shanghai Lijin to make prompt delivery. Not only

can Shanghai Lijin complete mass production orders in short period, we can even ship normal sample, prototype orders of Carbon Fiber Plate CNC parts in just SEVEN days after order confirmation when the

drawings are available. Shanghai Lijin is dedicated to solve any technical points during the production and new item developing to ensure the quality.

Carbon Fiber tube production is Shanghai Lijin’s core business and occupies 70% of our turnover.
The carbon fiber tubes Shanghai Lijin mainly produce is table-rolled and oven thermoset. The tubes can be Full Carbon or Carbon Fiber and Fiberglass composite, depending on the application, weight limit,mechanical

strength and surface requirement.Shanghai Lijin offers top quality ROUND carbon fiber tubes. The general OD tolerance we achieve is +/-0.10mm and it can be even +/-0.05mm after our special surface process.

The maximum length of the tube can be 5500mm.

Besides the traditional table-rolled carbon fiber tubes, Shanghai Lijin also offers REAL Filament wound carbon fiber tubes,which are widely used for mechanical strength like auto driving shaft, antennas, even for military

applications. The filament wound carbon tubes are wound at a certain angle like 30 or 45 degree. We invested the new production line from Jun 2013 and this increases Shanghai Lijin’s advantage in the carbon

fiber tube industry. There are just a few real filament wound carbon fiber tube manufacturers in domestic

China and we are one of them.

Since the rapid growth of UAV in the international market, instead of the standard plane like Phantom from DJI, RC fans are getting more interested in the customized multicopters. As carbon fiber is the most preferred

material for UAV, Carbon Fiber CNC parts demand is increasing. Shanghai Lijin sticks to offering OEM service for the international market, fine quality and prompt delivery.To ensure the thickness tolerance +/-0.10mm and minimum warp of the Carbon Fiber plates that are used for the cutting, Shanghai lijin execute high standard to

the plate production. For the normal thicknesses including 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm,
Shanghai Lijin keeps regular stock, to make sure the raw material will be available for cutting immediately when order is firmed.Experienced engineers are in Shanghai Lijin’s office ready to deal with different types of

drawings from customers. No matter the drawing formats are .DWG, .DXF that can be edited by AutoCAD

and used directly for production, 3D drawings like .IGS, or even draft drawings, our staff can do adjustment and change to customer’s idea. Our engineers are also good at English communication, Email and IM is easy

for them. Editing drawings for customers is FREE* of charge. Shanghai Lijin is having several professional CNC machines for carbon fiber cutting and drilling, with the capacity of cutting 20-50pcs standard full sized plate per day. The carbon fiber chassis general cutting tolerance Shanghai Lijin offer is +/-0.02mm. The

special designed cutting solution ensures the smoothness of the cutting edge.

‘Customers’ Persuit for Change, Lijin’s Motivation for Growth’, Shanghai Lijin takes customers’ demand for center, enhances the
customer satisfaction, and grows with customer.