Crafted with precision and excellence, our slitting blades stand out due to their unrivaled durability and superior performance. Constructed from premium wear-resistant materials and subjected to advanced processes like forging, heat treatment, and grinding, these blades boast exceptional accuracy and resilience. They resist oil, heat, and harsh chemicals, ensuring long-term use without deformation. This makes them ideal for precise slitting of delicate and thin materials, maintaining the integrity and quality of the cut.
We offer bespoke OEM services, tailoring each blade to your exact specifications based on your technical drawings or samples.
Precision in Blade and Knife Processing:
Surface Finish Quality: ≤ 0.002mm
Flatness and Parallelism Precision: ≤ 0.001mm
Blade heat treatment hardness tailored to blade material and the thickness of the cutting material.
Heat Treatment Techniques: Utilizing cutting-edge vacuum deoxidation and salt bath furnace treatments.
Material Options for Circular Blades and Knives: We offer a diverse range of high-performance materials including SKH-9, SKD-11, LD, W6Mo5Cr4V2AL, H13K, M42, K30, ASP60, and other customizable alloy steels.
| Item No. |
O.D x I.D x T(mm) |
Item No. |
O.D x I.D x T(mm) |
| 1 |
φ95*φ55*2 |
10 |
φ240*φ120*10 |
| 2 |
φ105*φ32*3 |
11 |
φ260*φ120*10 |
| 3 |
φ105*φ52*5 |
12 |
φ280*φ160*10 |
| 4 |
φ120*φ60*5 |
13 |
φ300*φ180*10 |
| 5 |
φ160*φ80*5 |
14 |
φ320*φ200*10 |
| 6 |
φ200*φ100*5 |
15 |
φ330*φ200*10 |
| 7 |
φ210*φ100*5 |
16 |
φ360*φ220*10 |
| 8 |
φ220*φ100*5 |
17 |
φ380*φ240*10 |
| 9 |
φ220*φ120*5 |
18 |
φ400*φ260*10 |
Note: We also provide bespoke customization and OEM services to meet unique customer specifications and preferences.
Product manufacturing flow
The hardness and quality of materials are pivotal to blade performance and longevity. We implement comprehensive quality assurance measures from raw material selection to the final product. Below is a reference table correlating material specifications:
We conduct rigorous inspections before packaging to ensure each blade and knife is pristine and securely packaged for export, thus safeguarding against potential transportation damage.
Why Choose Qinghao Blades and Knives?
Opt for Qinghao blades and knives for their unmatched quality and consistent performance. With over 30 years of expertise in manufacturing industrial blades, they are trusted across diverse industries such as metal, wood, food, paper, packaging, printing, rubber, non-woven, recycling, and metallurgy. Choosing Qinghao minimizes costs and maximizes efficiency.
Over the decades, we've built a team of seasoned technical experts ready to provide comprehensive technical support and solutions for all your cutting needs.
Our proprietary heat treatment methods and patented technologies guarantee superior cutting performance of blades and knives.
We offer OEM/ODM and customized services tailored to your specific cutting requirements and preferences.
1. Are you a 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.
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