Crafted from premium, wear-resistant materials and meticulously processed through forging, heat treatment, and precision grinding, our slitting blades stand as paragons of excellence. They boast unparalleled accuracy and durability, with superior resistance to oil, heat, and acid/alkali, ensuring long-term use without deformation. Their exceptional precision is ideal for slitting ultra-thin materials and those with delicate, sensitive surfaces.
We provide bespoke OEM services and tailor-made solutions according to your specific technical drawings or samples.
Processing Precision of Slitting Blades and Knives:
Surface Roughness:≤ 0.002mm
Flatness and Parallelism:≤ 0.001mm
Blades' heat treatment hardness is tailored to the blade material and the thickness of the cutting material.
Heat Treatment Methods: Vacuum deoxidation and salt bath furnace treatment.
Available Materials for Circular Blades and Knives: SKH-9, SKD-11, LD, W6Mo5Cr4V2AL, H13K, M42, K30, ASP60 powder alloy steel, and other custom materials.
| 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 |
Remark: We proudly offer bespoke customization and OEM services tailored precisely to meet our esteemed customers' unique preferences and requirements.
Product manufacturing flow
Material and blade hardness are the most crucial factors determining the quality and longevity of blades. At Zhejiang Qinghao Intelligent Machinery Co., Ltd., we undertake every conceivable measure to guarantee top-notch product quality, starting from meticulous material selection through to the final product. Below is the material correspondence table for your reference:
We implement rigorous product inspections prior to packaging, ensuring that each blade and knife is in pristine condition. Our specialized export packaging guarantees the utmost safety, meticulously designed to prevent any potential damage during transportation.
Why Choose Qinghao Blades and Knives?
Qinghao blades and knives stand out for their reliable quality and stable performance. Boasting over 30 years of extensive manufacturing experience in various industrial blades and knives, our products are trusted across an array of industries including metal, wood, food, paper, packaging, printing, rubber, non-woven, recycling, and metallurgical sectors. The adoption of Qinghao blades and knives significantly reduces your costs and saves valuable time.
Through decades of development, we have built a professional and experienced technical team capable of providing robust technical support and specialized solutions for any cutting challenges you may encounter.
Our professional heat treatment processing techniques, combined with proprietary patent technology, ensure that our blades and knives deliver outstanding cutting performance.
We offer OEM/ODM and customized services tailored to meet your unique cutting requirements and needs upon request.
1. Are you a manufacturer?
Yes, Qinghao is an ISO-9000 certified blade and knife manufacturer located in the picturesque Hangzhou area of Zhejiang province, China. With over 30 years of expertise, we are a cornerstone in the blade and knife manufacturing industry.
2. How long has Qinghao been established?
Qinghao was founded in the 1990s by Mr. Xuefu Rui. Over the past three decades, we have grown into a leading manufacturer in the blade industry, expanding our product range from a single series to multiple series, and extending our market reach from domestic to international arenas.
3. What services does Qinghao provide?
In addition to our standard blades and knives, Qinghao offers OEM, ODM, and customized services tailored to meet the unique cutting requirements and needs of our customers.
4. How can I work with Qinghao?
Our dedicated sales team and engineers will collaborate with you to understand your specific blade requirements in detail. Sharing technical drawings or samples will greatly enhance the initial discussions.
Once both parties agree on the technical specifications of the blades and knives, we will provide a detailed quotation for your reference.
Upon confirmation of the contract and receipt of payment, we will commence production preparations and execute the order as per the contract terms.
Your goods will be delivered within the agreed timeframe via sea, air, or express shipping.
Post-delivery, we offer a tracking service to monitor the blade's performance at your site, ensuring optimal use.
5. How can I arrange a factory visit?
Our factory is located in Tongxiang city, Zhejiang, China, approximately one hour by car from Xiaoshan International Airport. We can arrange for a car to pick you up from the airport upon your arrival. We warmly welcome you to visit our factory for a business trip.
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