Model Number: OBT
Surface treatment:: Natural or as per customer’s requirement
Process:: Sand Casting
Inspection:: 100% Test
Certification:: ISO9001:2008/TS 16949
Drawing format:: 2D/(PDF/CAD)3D(IGES/STEP)
Package:: Standard export package, Carton, Wood pallet or as requests
Service:: Customized OEM
Lead Time:: 15-35 Days
Packaging Details: Standard export package, Carton, Wood pallet or as requirements
Port: Qingdao port

Products Description Specification

Product Name	Metal Foundry Steel Gray / Grey / Ductile Cast Iron Aluminum Sand Iron Casting
Quality Assurance	ISO9001:2015 Certified
Material	Aluminum Alloy:5052 /6061/ 6063 / 2017 / 7075 / etc.
		Brass Alloy:3600/ 3602 / 2604 / H59 / H62 / etc.
		Stainless Steel Alloy:303 / 304 / 316 / 412 / etc.
		Steel Alloy:Carbon Steel / Die Steel / etc.
		Titanium Alloy: Grade 1/Grade 2/Grade 2 H/Grade 3/Grade 5/etc.
		We handle many other type of materials. Please contact us if your required material is not listed above.
Surface Treatment	Blacking,polishing,anodize,chrome plating,zinc plating,nickel plating,tinting
File Formats	Solid Works,Pro/Engineer, AutoCAD(DXF, NRV030 to 090 Worm Gear Reducer for Concrete Mixer DWG), PDF,TIF etc.
Machining Equipment	Machining Center / CNC Lathes / Grinding Machines / Milling Machines / Lathes / Stamping Machines/ Full Automatic Lathe /etc.

Company Profile Over ten years development, our products are sold in Germany, the United States, Australia, Britain, the Middle East, Spain,Brazil, India, South Korea, Taiwan and Chinese mainland, Agricultural drone spare part PMU etc.We will sincerely create and share success with all clients. Our goal is not only to provide high quality products, but also tomaintain a personalized and professional relationship with each customer. If you are interested in any of our products, please do not hesitate to contact us directly with your questions or inquiries. FAQ 1. How to prevent the formation of air holes in castings? The effective methods to prevent bubbles are: reducing the gas content in the metal liquid, increasing the air permeability of sand mold, and adding an air riser at the top of the mold cavity.2. How to avoid the situation of sticky sand？The surface of the casting is adhered to a layer of sand which is difficult to remove.It not only affects the appearance ofcasting, but also increases the workload of casting cleaning and cutting, and even affects the life of the machine.The method to prevent the formation of sand is to add coal powder in molding sand, and to brush the surface of the cast mold with anti-sand paint.3. How to identify shrinkage?(1) Observe the surface shape of casting defects. If the surface is uneven, very rough, and dark gray, the hole with irregularshape is shrinkage cavity.(2) If the location of the hole is at the final solidification thickening of the casting, or at the hot spot where the two wallsintersect, JS220 334J7006 332K9465 332K9467 333K7185 332K8318 swing motor swing gearbox reducer device machinery M5X130CHB for JCB and is located in the middle or upper part of the section, it is a shrinkage cavity.(3) The most concentrated hole defects on the thick and large section of steel castings are shrinkage or air shrinkage.4. How to prevent sand expansion？In order to prevent sand expansion, the strength of sand mold and the rigidity of sand box should be increased, and the pressing force or fastening force when closing the box should be increased. In addition, the pouring temperature should be reduced to make the surface of molten metal crust earlier, so as to reduce the pressure of molten metal on the mold.5. How to prevent sand inclusion?Sand inclusion is a kind of groove and scar defect formed on the surface of castings, which is very easy to produce in wet mold casting of heavy plate castings. Avoiding large plane structure can effectively prevent sand inclusion.6. How to identify the wrong type, wrong core and off-core?(1) Dislocation is the defect that one part of the casting is staggered with another part at the parting surface, which is usually caused by inaccurate positioning of the mold.(2) The core staggering is that the sand cores are staggered at the parting surface, which makes the inner cavity of the casting deform and the outer surface shape of the casting is correct.(3) Core deviation is caused by improper change of sand core position, which results in casting shape and size inconsistent with the drawing. Packing&Details To better ensure the safety of your goods, High power precision custom harmonic reducer planetary gearbox professional, environmentally friendly, convenient and efficient packaging services will be provided.