The cutting blades and slitting knives are most suitable for the cutting of various products with low, medium and high-speed .As per high-speed cutting blades, adopted with highly qualified material and with the treatment of the leveling of blade body surface and the fine grinding of blade edge, the swinging of blades in high-speed rotation and blade edge jumping are greatly reduced to the minimization.
The slitting baldes and cutting knives are suitable for low, medium and high-speed cutting of various products, such as clothing, hair, rubber, food, fabric products, paper pipes, plastic pipes, metal pipes, adhesive tapes, gauzes and sand tapes and adhesive label printing;and have the following features:
1.Vaccum quenching treatment and high hardness;
2.Blade-grinding with high precision grinder ,sharp and durable;
3.Highly qualified raw material selection;
4.Raw material prodcution with uniform particles.
The procesing accuracy of slitting blades and cutting knifes:
Surface roughness: ≤ 0.002mm
Diameter size: 300-1000mm
Thickness:0.5-300mm
Blades heat treatment hardness: based on blade material and thickness of the cutting material
Heat treatment method:vacuum deoxidation treatment and salt bath furnace treatment.
The sizes of slitting blades and cutting knives we specially designed for rubber and plastic industry as follows:
| The technica paramter for circular rubber sltting knives |
| Item |
Size/mm |
O.D/mm |
I.D/mm |
T/mm |
Remark |
| 1 |
Φ200 x Φ25.4 x 2 |
200 |
25.4 |
2 |
single side blade/Double side blades |
| 2 |
Φ200 x Φ55 x 2 |
200 |
55 |
2 |
single side blade/Double side blades |
| 3 |
Φ250 x Φ25.4 x 3 |
250 |
25.4 |
3 |
single side blade/Double side blades |
| 4 |
Φ300 x Φ25.4 x 3 |
300 |
25.4 |
3 |
single side blade/Double side blades |
| 5 |
Φ300 x Φ32 x 3 |
300 |
32 |
3 |
single side blade/Double side blades |
| 6 |
Φ350 x Φ25.4 x 3 |
350 |
25.4 |
3 |
single side blade/Double side blades |
| 7 |
Φ350 x Φ32 x 3 |
350 |
32 |
3 |
single side blade/Double side blades |
| 8 |
Φ350 x Φ38.1 x 3 |
350 |
38.1 |
3 |
single side blade/Double side blades |
| 9 |
Φ400 x Φ25.4 x 4 |
400 |
25.4 |
4 |
single side blade/Double side blades |
| 10 |
Φ450 x Φ25.4 x 4 |
450 |
25.4 |
4 |
single side blade/Double side blades |
| 11 |
Φ500 x Φ60 x 4 |
500 |
60 |
4 |
single side blade/Double side blades |
| Re: ODM/OEM/Customized service is avaible against your detailed work requirements,technical drawings or samples |
The material available for the slitting blades and cutting knives: SKH-9,SKD-11,LD, W6Mo5Cr4V2AL,H13K,M42,K30,65Mn,9CrSi,SKD-11,SKH-51,SK85,D2,ASP60 powder alloy steel and other custom material.
1.Strict material selection and exquisite craftsmanship
with advanced heat treatment craftsmanship, the cutting blades and slitting knives have selected home-based and imported qualified steel to ensure the accuracy and quality of products.
2. Sharp blade edge, neat and no burr
the cutting blades and slitting knives have adopted high precision grinder for grinding to ensure sharp edge and blade body smooth and no burr, which make cutting surface attractive and prolong blade service life.
3.Stable performance created with unique processing craftsmanship
With advanced heat treatment technology and sharp cutting of blade edge, wear and aging resistant, the cutting blade and slitting knives have the features of high working efficiency, high-speed cutting with less resistance and high surface finish.
4.Customization of no-standard types and professional manufacturing
Professional cutting blades and slitting knives manufacturer with decades of experiences in mechanical blades industry, we are able to provide OEM/ODM and customized service according to customer's working need in cutting.
Product manufacturing flow
Material and blades hardness are the most important factor to blade quality and serive life.We take very possible measurements to ensure the product quality from material selection to final product. Following is the material corecpondence table for reference:
We takes strict product inspection before packaging and make sure every blade and knive in a new and safe export packaging condition to prevent any possible damagesfrom occurring in transportation.
Why choose Qinghao blades and knives?
1.Qinghao cutting blades and slitting knives have reliable quality and stable performance and with more than 30 years of rich manufacuring experice in all kinds of industrical blades and knives , our blades are widely used in metal,wood, food,paper, packaging ,printing, rubber,no-woven,recycling,metallurgical industries,etc.The use of Qinghao blades and knives can save your cost and time as much as possible;
2.With decades of development ,we have establised an professional and experienced technical team and have the ability to provide the customer with technical support and professional technical solutions for the problems in your cutting work;
3.Professional heat treatment processing techniques and own patent technology ensures the blade and knives an excellent cutting performance;
4.OEM/ODM/Customized service are provided once the reception of your private cutting requirement need ,drawings or samples.
1. Are you manufacturer?
Yes, Qinghao is an ISO-9000 certified blade and knife manufacturer in Hangzhou area of Zhejiang province ,China, with more than 30 years of blade and knife manufacturing history.
2. How long has Qinghao been established?
Qinghao was established in 1990s by Mr Xuefu Rui and after more than 30 years of development,it has grown into a leading manufacturer in blade indutry with product range from single series to mutiple series and with market from home to overseas market;
3. What service does Qinghao provide?
Excep the standard blades and knives ,Qinghao also provided OEM/ODM/customized sevice according to customer's private cutting requirements and needs.
4. How to work with Qinghao?
Our sales and engineer will check with you for all the detailed blade requirements you have and confirmed with you(Technical drawings/samples will be perfect for technical discussion at the inital stage);
After both parties confirmed the technical details on the blade and knife, the quotation sheet is made for your reference accordingly;
After contract is confirmed and payement done,we will begin to make the production preparation and carry out the order according to contract;
The goods will be delivered to you within contracted time by sea, air or express;
There is a tracking service relating to the blade use condition in your site after the arrival of blades to you;
5. How can i made a factory visit?
Qinghao factory is located in Tongxiang city, Zhejiang,China.the nearest airport is Xiaoshan International Airport ,about 1 hour by car to our factory.We can send the car to pick you up in the airport after your arrival. You are warmly welcome to visit our factory to have a business trip.
Audited Supplier 
){kind=link}
){kind=link}