Kinds of Standard/Customizable Steel Crane Gear/Wheel for Construction Hoist

Gjj Through-Hole Roller, Mast Section Roller(76model)
High quality construction hoist spare parts 
High quality GJJ, BAODA material hoist spare parts
 
Packaging & Delivery
All kinds of hoist spare parts , GJJ,BAODA,ZOOMLION,TIGER,
Driving device with 2-motors / 3-motors;
motor: 11kw, 14.5kw,18kw;
motor spare parts: braking system; brake sheet, motor adjustor, electromagnet,motor fan.
safety device: 30KN,40KN,50KN,60KN;
gearbox: 16:1,14:1,12:1;10:1;
coupling with rubber;
master rollers for 76 tube and 89 tube;
gear rack M8 40x60x1508mm;
gear pinion: M8,15teeth;
limit switch;
gate rollers;
counter rollers;
transformer;
Overload protect system;
cable: 3x16+2x6, 3x16+2x10

Product Description
All kinds of hoist spare parts , GJJ,BAODA,ZOOMLION,TIGER,
Driving device with 2-motors / 3-motors;
motor: 11kw, 14.5kw,18kw;
motor spare parts: braking system; brake sheet, motor adjustor, electromagnet,motor fan.
safety device: 30KN,40KN,50KN,60KN;
gearbox: 16:1,14:1,12:1;10:1;
coupling with rubber;
master rollers for 76 tube and 89 tube;
gear rack M8 40x60x1508mm;
gear pinion: M8,15teeth;
limit switch;
gate rollers;
counter rollers;
transformer;
Overload protect system;
cable: 3x16+2x6, 3x16+2x10 Gjj Through-Hole Roller, Mast Section Roller(76model)
High quality construction hoist spare parts 
High quality GJJ, BAODA material hoist spare parts
 
Packaging & Delivery
All kinds of hoist spare parts , GJJ,BAODA,ZOOMLION,TIGER,
Driving device with 2-motors / 3-motors;
motor: 11kw, 14.5kw,18kw;
motor spare parts: braking system; brake sheet, motor adjustor, electromagnet,motor fan.
safety device: 30KN,40KN,50KN,60KN;
gearbox: 16:1,14:1,12:1;10:1;
coupling with rubber;
master rollers for 76 tube and 89 tube;
gear rack M8 40x60x1508mm;
gear pinion: M8,15teeth;
limit switch;
gate rollers;
counter rollers;
transformer;
Overload protect system;
cable: 3x16+2x6, 3x16+2x10

Product Description
All kinds of hoist spare parts , GJJ,BAODA,ZOOMLION,TIGER,
Driving device with 2-motors / 3-motors;
motor: 11kw, 14.5kw,18kw;
motor spare parts: braking system; brake sheet, motor adjustor, electromagnet,motor fan.
safety device: 30KN,40KN,50KN,60KN;
gearbox: 16:1,14:1,12:1;10:1;
coupling with rubber;
master rollers for 76 tube and 89 tube;
gear rack M8 40x60x1508mm;
gear pinion: M8,15teeth;
limit switch;
gate rollers;
counter rollers;
transformer;
Overload protect system;
cable: 3x16+2x6, 3x16+2x10

Investment casting technical flow process

The silica sol casting process also called precision investment casting process. It is a less cutting or no cutting casting process. It is an excellent technique in foundry industry. Its application is very extensive. It not only applicable to various types, various kinds of alloy and casting, and produce the casting dimension accuracy and surface quality is higher than other casting method, Even other casting method can not do the complex, high temperature resistant, not easy machining castings, all can be used for investment precision casting process.

The investment casting process, it is a process that use fusible materials make soluble model, and coated with several layers of tailor-made refractory coating on the surface, after drying and hardening become a whole shell, melt the shell model by steam or hot water. Then put the shells in the sand, filling dry sand in all round and modeling. Finally roasting it based on high-temperature in the furnace, the shell after roasting, and getting the casting part after pouring molten metal.

The investment casting process can produce High precision dimensional parts, generally can reach to CT4-6(sand casting is CT10-13, die casting is CT5-7). Due to the complexity of investment casting process, there are many factors influencing the casting dimension accuracy. Such as shrinkage of mold material, deformation of the casting, Shell heating and cooling line quantity change in the process, alloy shrinkage and deformation of castings in the solidification process. The surface finish of investment castings is higher than the ordinary casting, can reach to Ra1.6~3.2.

The greatest advantages of investment casting is casting parts have high dimensional accuracy and surface finish, so it can reduce the mechanical processing. The another advantage of investment casting method is that it can cast all kinds of alloy and complex casting part, special casting high temperature alloy casting part.

The precision of the Steel Casting Part: ±0.15mm~

Smoothness of surface of rough part: Ra6.4;

Shrinkage rate of steel investment casting products: 0.6%;

Material wastage rate: 5%;

General stainless steel casting part machining allowance: 0.7mm;

Surface preparation methods: Sand blasted, Shot blasting, Powder coating, Painting, Plating, Electrophoresis, Polishing.

Our company's production equipment and management system

CNC machining center: 8 sets AIGEMA A-8;

CNC lathe machine: 6 Guangzhou Machines and 7 Shenyang Machines;

Work days of one week: From Monday to Saturday;

Shift work: 2 shift per day;

Working hours: From AM 8:00 to PM 5:00;

2D and 3D drawing Software: AutoCAD, UG, Pro/E, SolidWorks 2013;

QC control: New type NANO CMM, FPI M5000 desktop metal analyzer, Easson projector, Mechanical properties tester.

The steel casting process and machining equipment:

Steel Casting Part

Stainless Steel Lost Wax Casting, Steel Casting Part, Steel Investment Casting Part, Steel Silica Sol Casting Part

NINGBO BEILUN LEMA MACHINERY TECHNOLOGY CO.,LTD , http://www.china-lema.com