Crafted from premium wear-resistant materials and meticulously processed through forging, heat treatment, and grinding, our slitting blades boast superior accuracy, wear-resistance, oil-resistance, heat-resistance, and acid/alkali resistance. They are designed to maintain their precision and durability over prolonged use without deformation, ensuring exceptional slitting accuracy. This makes them particularly suitable for cutting thin materials and those with soft or sensitive surfaces.
We provide both OEM and custom services tailored to your technical drawings or samples, ensuring that our products perfectly match your specific requirements.
Processing Accuracy of Slitting Blades and Knives:
Surface Roughness: ≤0.002mm
Flatness and Parallelism: ≤0.001mm
Blade Heat Treatment Hardness: Determined by the blade material and the thickness of the cutting material
Heat Treatment Methods: Vacuum deoxidation treatment and salt bath furnace treatment to ensure optimal performance.
Materials Available 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 tailored solutions through our customized service and OEM service, meticulously designed to meet the unique needs and specifications of our valued customers.
Product manufacturing flow
The hardness of materials and blades is paramount to determining blade quality and longevity. At Zhejiang Qinghao Intelligent Machinery Co., Ltd., we implement every conceivable measure to ensure superior product quality, from the meticulous selection of raw materials to the final finished product. Below is the material correspondence table for your reference:
We implement rigorous product inspections before packaging, ensuring that each blade and knife is in pristine condition. Our advanced and secure export packaging safeguards against any potential damage during transportation, guaranteeing that your Industrial Tungsten Cutting Blade for the Paper Industry arrives safely and ready for use.
Why Choose Qinghao Blades and Knives?
Qinghao blades and knives stand as paragons of reliability and performance. With over 30 years of rich manufacturing expertise in a diverse array of industrial blades and knives, we are proud to serve a multitude of industries, including metal, wood, food, paper, packaging, printing, rubber, non-woven, recycling, and metallurgical sectors. Our blades are engineered to save your resources and time, enhancing your operational efficiency.
With decades of evolution, Zhejiang Qinghao Intelligent Machinery Co., Ltd. has cultivated a professional and seasoned technical team. We are equipped to provide robust technical support and tailor-made solutions, addressing any challenges you may encounter in your cutting tasks.
Our proprietary heat treatment processing techniques and patented technology ensure that our blades and knives deliver unparalleled cutting performance, setting new industry standards.
We offer comprehensive OEM/ODM/customized services to meet your unique cutting requirements and needs. Your specific demands are meticulously addressed from the moment we receive them, ensuring a personalized and efficient solution.
1. Are you a manufacturer?
Yes, Qinghao is an ISO-9000 certified blade and knife manufacturer located in the scenic Hangzhou area of Zhejiang Province, China. With over 30 years of expertise in blade and knife manufacturing, we guarantee unparalleled quality and reliability.
2. How long has Qinghao been established?
Founded in the 1990s by Mr. Xuefu Rui, Qinghao has evolved over more than 30 years into a preeminent leader in the blade industry. Our expansive product range has grown from single to multiple series, catering to both local and international markets.
3. What service does Qinghao provide?
Beyond offering standard blades and knives, Qinghao specializes in OEM/ODM and bespoke services tailored to meet your unique cutting requirements and specifications.
4. How to work with Qinghao?
Our dedicated sales and engineering teams will collaborate with you to understand your detailed blade requirements. Initial technical discussions are optimized with your technical drawings or samples.
Once both parties finalize the technical specifications, we will provide a comprehensive quotation for your review.
Upon contract confirmation and receipt of payment, we will initiate production preparations and execute your order as per the agreed terms.
Your goods will be delivered within the agreed timeframe via sea, air, or express shipping, ensuring timely arrival.
Post-delivery, we offer tracking services to monitor the blade's performance and condition at your site, ensuring seamless operation.
5. How can I arrange a factory visit?
Our state-of-the-art factory is located in Tongxiang City, Zhejiang, China, just an hour's drive from Xiaoshan International Airport. We are pleased to offer complimentary airport pickup and warmly welcome you to visit our facility for a productive business trip.
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