Crafted from premium wear-resistant materials, our high-performance slitting blades undergo rigorous processes including forging, heat treatment, and precision grinding. These steps ensure exceptional accuracy, durability, and resistance to oil, heat, and corrosive substances. Designed for longevity without deformation, these blades guarantee precise slitting, especially for thin, delicate materials with sensitive surfaces.
We provide comprehensive OEM and custom services tailored to your technical drawings or samples, ensuring personalized solutions for your cutting needs.
Precision Specifications of Slitting Blades and Knives:
Surface Roughness: ≤0.002mm
Flatness and Parallelism: ≤0.001mm
Heat Treatment Hardness: Adjusted according to blade material and cutting material thickness
Heat Treatment Methods: Vacuum deoxidation and salt bath furnace treatments.
Available Materials for Circular Blades and Knives: SKH-9, SKD-11, LD, W6Mo5Cr4V2AL, H13K, M42, K30, ASP60 powdered alloy steel, and customizable 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: In addition to our standard offerings, we proudly provide customized and OEM services tailored to meet the unique requirements and needs of each individual customer. Explore our bespoke solutions designed to cater to your specific demands.
Product manufacturing flow
The hardness and quality of our materials and blades are paramount to the exceptional performance and longevity of our high-speed cutting knives and blades for paper. We employ meticulous measures at every stage, from material selection to the final product, to ensure unmatched quality. Below is the material correspondence table for your reference:
We implement stringent product inspections before packaging, ensuring that every blade and knife is securely housed in new, safe export packaging. This meticulous care prevents any potential damage during transportation, guaranteeing that our high-speed cutting knives and blades arrive in pristine condition.
Why choose Qinghao blades and knives?
Qinghao blades and knives stand as a beacon of reliable quality and unwavering performance. With over 30 years of rich manufacturing experience in a diverse array of industrial blades and knives, our products are indispensable across multiple sectors, including metal, wood, food, paper, packaging, printing, rubber, non-woven fabrics, recycling, and metallurgical industries. Opting for Qinghao blades and knives translates to significant cost and time savings for your operations.
Through decades of relentless development, we have cultivated a professional and seasoned technical team. This expertise empowers us to offer you unparalleled technical support and bespoke solutions tailored to address any challenges in your cutting operations.
Our proprietary heat treatment processing techniques, combined with our patented technology, ensure that our blades and knives deliver exceptional cutting performance.
We offer comprehensive OEM/ODM/customized services to meet your unique cutting requirements and needs, ensuring we cater to your specific demands with precision and excellence.
1. Are you a manufacturer?
Yes, Qinghao is a distinguished ISO-9000 certified manufacturer of blades and knives based in the scenic Hangzhou area of Zhejiang province, China. With over three decades of unparalleled expertise in blade and knife manufacturing, we stand out in the industry.
2. How long has Qinghao been established?
Founded in the dynamic 1990s by the visionary Mr. Xuefu Rui, Qinghao has spent more than 30 years evolving into a trailblazer in the blade industry. From offering a singular product line, we now boast a diverse range that serves both domestic and international markets.
3. What services does Qinghao provide?
Beyond standard blades and knives, Qinghao excels in offering OEM/ODM and fully customized services tailored to meet each customer's unique cutting requirements and specifications.
4. How do I work with Qinghao?
Our dedicated sales and engineering teams will collaborate closely with you to understand all your detailed blade requirements. Providing technical drawings or samples at the initial stage will facilitate thorough discussions.
Upon mutual agreement on the technical specifics of the blade and knife, we will prepare a comprehensive quotation sheet for your review.
Once the contract is finalized and payment is received, we will initiate production preparations and proceed according to the agreed terms.
Your order will be delivered within the stipulated timeframe via sea, air, or express courier services.
Post-delivery, we offer a tracking service to monitor the blades' performance and condition at your site, ensuring continued satisfaction.
5. How can I arrange a factory visit?
Our state-of-the-art factory is situated in Tongxiang city, Zhejiang, China, conveniently near Xiaoshan International Airport. Just an hour's drive away, we can arrange for a car to pick you up upon your arrival. We warmly welcome you to visit our factory for a productive business trip.
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