Guangzhou ZhengHui Construction Machinery Co,.LTD
In the long run, having high quality would help greatly in reducing the substitute cost and ensuring a long-term profitability. On the other hand, low quality products will suffer from having to need frequent replace which can in turn, turn a profitable business into a loss. Having low quality products can cause many problems which can lead to customers losing trust in us.
On the first glance, G.E.T. parts and casting parts from different manufacturers look similar, they are but process of casting, but underneath the surface, the quality of our parts is hugely different, as a result of different material, strict quality inspection, care for the details and installation.
High quality is our aim that we should always follow. We ZHENGHUI can give you the strongest product warranty available to meet your requests. ZHENGHUI uses the inspection equipments as quality control for all customers:
Metallographic, impact test machine, spectrum analysis instrument, ultrasonic examination facility, universal strength tester, three coordinate measuring machine, x-ray ndt equipment, magnetic particle inspector, etc.
The investment casting process produces structurally sound cast parts; although certain industries and manufacturers require additional part testing. ZHENGHUI has following other testing inspection equipments:
Ultrasonic Flaw Detector- For non-destructive inspection industry
Spectrometer- Identify the amount and type of chemicals present
Brittleness Temperature Tester(-60°C)
Metallographic Microscope
X-Ray Flaw Detector
Tensile Testing Machine
Magnetic Particle Inspection Machine
Three-Direction Coordinate
Hardness
As one of China’s most professional manufacturer specialized in bucket teeth & adapters, wear parts, G.E.T. parts and OEM casting parts, we are committed to only designing and manufacturing the products that are in compliance with the International Quality Standards and Production Equipment Workshop.
Using only the finest materials and following a strict manufacturing process, we ZHENGHUI manufactures only sturdy and durable and well-designed spare parts and casting parts to our customers. We are very committed to manufacturing and producing only high quality products as we understand how critical it would be to the construction business of our customers. We believe that with their success, this in turn will also lead to the success of our business. Ningbo ZHENGHUI believes that technology makes products better, so we invest a lot in new equipments and facilities.
We concentrate on all kinds of metal casting for many years.
Investment Casting
Investment casting, also known as lost wax casting, includes wax pressure, wax repair, group tree, soaking, wax melting, casting metal liquid and post-processing technology. Wax casting wax was used to make castings, wax and wax were applied to the clay, and then coated with mud. The mud is dried, and the hot water is added to the internal melted wax. The melting end clay mold is dewaxing and baked into a ceramic mold. Roast it immediately. When making ordinary dies, leave the gate, and then pour molten metal from the gate. After cooling, the required parts are made.
Sand Casting
Sand casting, also known as sand mold casting, is a casting process with sand as the die material. The term “sand casting” can also refer to objects produced during sand casting. Sand castings are manufactured in specialized factories called foundries. More than 70% of the metal castings were produced by sand casting process.
Moulds made from sand are relatively inexpensive, and are also adequate refractories for the use of cast steel. In addition to sand, suitable binder (usually clay) is mixed with sand or occurs. The mixture is usually wetted with water, but sometimes wetted with other substances to develop strength and plasticity of clay and to make aggregates suitable for molding.
CNC Machining
CNC machining is a digital manufacturing technology: it produces high-accuracy parts with excellent physical properties directly from a CAD file. Due to the high level of automation, CNC is price-competitive for both one-off custom parts and medium-volume productions. Almost every material can be CNC machined.
We are very pleased to provide the highest quality products and services, support a special staff, define customer service. According to your samples, drawings or specifications, manufacture various parts. You can get gears, shafts, gear housing and other metal parts by CNC machining.
Heat Treating
Metal heat treatment is one of the most important processes in mechanical manufacturing. Compared with other processing techniques, heat treatment generally does not change the shape of the workpiece and the chemical composition of the whole, but by changing the microstructure of the workpiece or changing the chemical composition of the workpiece surface, giving or improving the working performance of the workpiece. It is characterized by improving the internal quality of the workpiece, which is generally not visible to the naked eye.In order to make the metal workpieces have the required mechanical properties, physical properties and chemical properties, the heat treatment process is often necessary except for the reasonable selection of materials and various forming processes. Steel is the most widely used material in the machinery industry. The microstructure of iron and steel is complex and can be controlled by heat treatment. So the heat treatment of iron and steel is the main content of metal heat treatment. In addition, aluminum, copper, magnesium, titanium and other alloys can also change their mechanical, physical and chemical properties through heat treatment to obtain different performance.
Surface Finishing
In order to improve our services, we provide many kinds of metal surface finish such as Zinc/nickel/chrome plating, e-coating, hot dip galvanization, PVC powder coating, dacromet plating, painting, polishing, barrel polish, buff polish, e-polishing, Fluidization dip coating, plastic coating, anodize, wet painting, silk screen etc.
Product Ranges
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Available product name
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Sprocket, gear, flange,gear box,valve, Roller, pulley,casting,forging,stamping,injection parts, Mchining parts, bearing house, worm gear and worm shaft , spline shaft/house , wheel hub, Mould design and other harware products
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Material
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stainless steel, Metal, Aluminum&alloy, Carbon steel,Iron,Brass,plastic,zinc&alloy……
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Production process
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precision casting, sand casting,die casting,forging ,welding,gravity casting,lost wax casting,investment casting,stamping,CNC machining,injection…..
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Surface treatment
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sand blasting,baking paint,chorme/zinc plating,spray paint,spray coating,oxygenation, polishing, electroplating, grind,oil blooming,blacking, Knurl, E-coat,deburring……
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Standard
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OEM, as drawing design.
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Used
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building industry machinery, Auto parts, Agricultural machine, instrucment accessories, electronic accessories…
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Production Process
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Process
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Material
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Standard
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Sand casting
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Green sand
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Grey Iron, Ductile Iron, Malleable Iron
Stainless steel, Carbon steel, Aluminum
Brass, Bronze
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ASTM, DIN, ISO
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Furan Resin Sand
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Cold Harden Resin Sand
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Investment casting
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Sodium Silicone
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Stainless steel, Carbon steel, Special alloy steel bronze, brass, aluminum
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Silica sol
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Forging
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Hammer forging
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Stainless steel, Carbon steel, Alloy steel
Brass, aluminum
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Die forging
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Roll forging
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Stamping machining
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Stamping machining
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All metal material
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Why Choose Us?
1. Rich experience and resources of various manufactures
Our foreign trade sales team members have many years working experience.Our company has enormous resources of various manufacturers and distributors.And we can meet customers’ various needs in quality,quantity,price and delivery time etc.
2. Excellent service before purchasing.
According to clients’ circumstances, we will recommend most suitable parts for them.Our company haenormous resources of various manufacturers and distributors.Professional service and positive feedback.
3. Competitive price and guaranteed quality
Competitive and reasonable price to help customers to win markets, reliable supplier and stable quality guarantee.
ZHENGHUI has a high-quality core management team and an experienced technical team. Since establishment, our company takes developing international talents as the standard, and has excellent platform advantages to unite a group of business elites. Their efforts have made the company develop rapidly and continuously level improvement of international professional mechanical parts let customers trust and choose our excellent team.
Corporate culture wall
Foreign trade team
IN 1996 -- ZHENGHUI was set up in Guangzhou city.
IN 2000 -- Passed ISO9001 quality system certification.
IN 2003 -- Our sales department, warehouse department, purchasing department was established, and we carry out our duties and become more and more professional.
IN 2005 -- Found overseas sales team.
IN 2010 -- Production capacity of foundry 3500T/year.
IN 2013 -- Foreign trade sales increased year by year.
IN 2015 -- Production capacity of foundry 10000T/year. Obtain ISO4001 certification.
IN 2016 -- ZHENGHUI took part in 2016 Germany Bauma exhibition and 2016 Shanghai Bauma exhibition.
IN 2017 -- Exported more than 80 countries.
IN 2018 -- ZHENGHUI took part in 2018 Shanghai Bauma Exhibition and 2018 Brazil M&T EXPO exhibition.
IN 2019 -- ZHENGHUI took part in Germany Bauma 2019 MUNICH.
IN 2020 -- Presentation of the new design of the company’s website. Infinite future for all customers.
We take every project seriously and ensure that every guest’s project has professional ZHENGHUI staff tracking from the begining to the end.
We offers fully processed castings. Our foundry is able to produce a wide variety of OEM castings from a range of pure metal and metal alloys. From small to large productions, we are able to scale volume and adapt according to your plans and goals.
In ZHENGHUI,we believe only cooperation based on trust can bring a good result. With responsible attitude and professional dedication, We served many customers and received positive feedback.
Logistics Services
Warehouse Storage Service
How to Place a Order with Us：
Generally speaking, the procedure is usually as follows:-
-Send us inquiry by either email or fax, and we will send you detailed offer.
-After everything is confirmed, we will send you a Proforma invoice in which the trading terms is included.
-We will arrange production after receipt the deposit.
-We make sample to you before mass production for your confirmation.
-We start production after sample confirmed.
-We make shipment and you pay the balance after production finish,
-Full set of original shipping documents will be sent to you by courier after we receive final payment,
-Then you can take delivery based on these documents at your port.
