We manufacture rotary slitter knives up to 1300mm(51.1811 inches) in outside diamter for slitting metal plates, coils etc.
Blades are available with ground, lapped or polished side faces.
Slitter knives are manufactured to a thickness tolerance of ±0.002mm-0.003mm(±0.00007 inch-±0.00012inch).
Parallelism tolerances is within 0.003mm (0.00012 inch) These are all prerequisites for the best possible slitting results.
Parallelism tolerances is within 0.003mm (0.00012 inch)
Operational Progress :
Steel-choosing→Blanking →Forging Steel →Rough Processing →Heat treatment →Finishing→Testing
Knives are available with polished side faces ,High cost performance ,Punctual delivery .
Materials : 9CrSi ,6CrW2Si , H13 ,Cr12MoV ,G1 , G2 ,G3 and etc .
Steel-making by medium frequency furnace
Goodklife company can meet special requirements for materials . In order to guarantee the quality ,the company imported the spectrometer from Germany and is equipped with various testers,such as tensile tester,impact testing machine,metallography analyzer and so on .
Electro slag remelting
The largest ingot can reach 3 tons in Goodklife company .The ingot obtained by this remelting/refining process is very homogeneous and free of internal defects . The segregation of the ingot (called macro-segregations ) are substantially eliminated and the segregations of crystals (called macro-segregations ) are significantly reduced .
The ESR remelted material improve following mechanical characteristics :
Improved toughness due to increased homogeneity and isotropy
Improved creep resistance properties
Best fatigue strength and tenacity properties as well as outstanding tensile strength
The largest electro-hydraulic hammer is 4.5 ton .And more than 6 skilled technicians work for us .After forging ,the inside microstructure becomes much closer and the metal grain size becomes much smaller . It can evevate the characteristics and quality of the knife ensuring a longer life .
No less than 40sets of processing equipment in the rough processing workshop of Goodklife company , including lathe ,milling machine , planer , drill machine etc. Skilled workers are employed in its rough processing workshop .
Goodklife company has independent workshop for heat treatment . Couples of skilled technicians work here . Actually , most blades ( thickness ≤100mm) can be fully hardened . Thus ,the blades can be used after repairing until the size reached the minimum design dimension .
Goodklife company has more than 35 sets of processing equipment including internal grinder , external grinder , surface grinder ,CNC grinder ,electric spark CNC wire-cut etc. The company can produce the shearing blades with 5500mm in length and slitting knives with 1300mm in outside diameter .
Various testers are put to use for testing its products in Goodklife company . They are including tensile tester , impact testing machine , metallography analyzer , harmless flaw detector , magnetic powder inspection , hardness tester , caliper rule , microcalliper , etc . Testing is carried out after each step . And every product has a unique track number . Thus it is easy to trace back anytime .
A. Inside packing: Applied with anti-rust oil and then packed in plastic bag
B. Outside packing: Packed in plywood case
FOB , CIF , DAP and etc. According to customers' requirements ,we will send out the goods to the forwarder that ready for delivery .
Goodklife Machinery Technology Co., Ltd Ma'anshan is located in Bowang Town which is one of the most famous town for blades in China. The company has been committed to providing knives and blades of high productivity and high precision. From raw material, heat treatment to finishing, Goodklife keeps track and exercises strict control over every piece, in order to improve the performance of our products and production efficiency, at the same time reduce the production cost. By working with counterparts from western countries closely, Goodklife continues to innovate and pursues the better quality. Besides standard raw materials like 9CrSi, D2, H13, the company also has its own special materials which are specializing in processing high tensile strength metal coils. Material-choosing, cutting performance improvement, professional advices are available here. Good material, skilled producing process and responsible after-sale service make our products popular at home and abroad.
1.What's the price ?
Always we will quote you price based on drawings . Then according to your application and quantity ,we will send you quotation soon.
For slitter knives ,we want to know following information :
|OD(mm)||ID (mm)||Thickness (mm)||Quantity (pcs)||Specified material|
For shearing blades and others :
|Length(mm)||Width (mm)||Thickness (mm)||Quantity(pcs)||Specified Material|
In order to get the right offer , we have to check the drawing carefully in advance . If you don't have it , we have technicians who can make the drawing for you .
2.What's the material and hardness ?
Material and hardness are the most important thing to the work life of blades .According to your application ,we will recommend you the best material and hardness .
Optional Materials :9CrSi , 6CrW2Si , LD , D2 , Cr12MoV , H13 , G1, G2 ,G3 and etc .
Goodklife has developed some high alloy steel ,like G1 , G2 ,G3 etc . They are new materials developed independently by our company and excellent in high intensity , high hardness , high wear resistance , high toughness and so on . They can be used in both cold and hot shearing ,the life is 2-3 times longer than other blades made of normal materials .
Hardness : optimum hardness and toughness after heat treatment . If hardness is high , when the blades meet higher tensile strength steel ,it is easy to crack . If the hardness is low , then the wear resistance is not good ,that means work life is shorter . Actually ,most blades ( thickness ≤100mm ) can be fully hardened . Thus ,the blades can be used after repairing until the size reach the minimum design dimension .
3. What's the solution for crack or any other problems ?
If happen cracks ,then there are following reasons :
a. The hardness is high .
b. Used for cutting much higher tensile strength steel or others
Goodklife promise that will take responsibility for any failure caused by us ,and reproduce new blades for you for free .
Any other questions , you are welcome any time .