Our High Quality Tungsten Carbide Circular paper tube plastic Film Cutting Blades and knives are crafted from top-tier, wear-resistant materials. They undergo meticulous processing, including forging, heat treatment, and grinding, to ensure exceptional precision and durability. These blades are engineered to excel in resistance to wear, oil, heat, and acids/alkalis, promising long-lasting, deformation-free performance. Designed to maintain precise slitting accuracy, they are particularly effective for cutting thin materials and those with soft or sensitive surfaces, ensuring a clean cut every time.
We offer an expansive range of OEM services and custom solutions, meticulously tailored to meet your specific requirements. Whether it's according to your technical drawings or samples, our solutions are crafted to perfection.
Slitting Blades and Knives Processing Precision:
Surface Roughness: ≤ 0.002mm
Flatness and Parallelism: ≤ 0.001mm
Blade Heat Treatment Hardness: Tailored according to the blade material and the thickness of the cutting material to ensure optimal performance.
Heat Treatment Methods: We employ advanced techniques such as vacuum deoxidation treatment and salt bath furnace treatment to enhance blade performance and longevity.
Materials Available for Circular Blades and Knives: Choose from premium options like SKH-9, SKD-11, LD, W6Mo5Cr4V2AL, H13K, M42, K30, ASP60 powder alloy steel, and other custom materials for unparalleled performance.
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: Proudly offering customized services and OEM solutions that align with the unique specifications and individual needs of our esteemed customers, underscoring our commitment to excellence.
Product manufacturing flow
The hardness and quality of materials and blades are vital to achieving superior blade performance and longevity. We implement rigorous quality control at every stage-from material selection to the final product-to ensure each blade meets our high standards. Below is a reference table for material correspondence:
We conduct exhaustive product inspections prior to packaging to ensure pristine quality. Each blade and knife is securely placed in brand-new, safe export packaging, meticulously designed to protect against potential transportation damage.
Why choose Qinghao blades and knives?
Qinghao blades and knives are synonymous with reliability and consistent superior performance. With over three decades of rich manufacturing expertise across a diverse array of industrial blades and knives, our products are invaluable across various sectors including metal, wood, food, paper, packaging, printing, rubber, non-woven materials, recycling, and metallurgical industries. Opting for Qinghao blades and knives means embracing significant savings in both cost and time, and a commitment to high-quality results.
Over decades of development, we have built a professional and seasoned technical team, ready to provide comprehensive technical support and expert solutions to any challenges encountered in your cutting operations, ensuring seamless efficiency.
Our sophisticated heat treatment processing techniques, bolstered by proprietary patented technology, assure that our blades and knives deliver outstanding cutting performance, standing out in competitive markets.
We deliver OEM, ODM, and fully customized services tailored to your specific cutting requirements and needs upon receipt, ensuring bespoke solutions that enhance your operational success.
1. Are you a manufacturer?
Yes, Qinghao is an ISO-9000 certified blade and knife manufacturer located in the prestigious Hangzhou area of Zhejiang province, China. With a rich legacy of over 30 years in blade and knife manufacturing, Qinghao stands as a pillar of excellence and trust.
2. How long has Qinghao been established?
Qinghao was established in the 1990s by the visionary Mr. Xuefu Rui. Over three decades of relentless innovation and growth have transformed it into a premier leader in the blade industry. Our product offerings have expanded from a single series to multiple series, proudly serving both domestic and international markets.
3. What service does Qinghao provide?
Beyond standard blades and knives, Qinghao excels in providing OEM, ODM, and customized services tailored meticulously 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 and document all your blade requirements in detail. Technical drawings or samples are highly recommended for precise discussions during the initial stage.
Once both parties have thoroughly reviewed and confirmed the technical specifications of the blade and knife, we will prepare a comprehensive quotation sheet for your reference.
Upon confirmation of the contract and receipt of payment, we will initiate production preparations and execute the order in strict accordance with the agreed terms.
Your goods will be delivered within the contracted time frame via sea, air, or express delivery, as per your preference.
Post-delivery, we offer a tracking service to monitor the blade's performance and usage conditions at your site, ensuring sustained satisfaction and efficiency.
5. How can I make a factory visit?
Our state-of-the-art Qinghao factory is situated in Tongxiang city, Zhejiang, China. The nearest airport is Xiaoshan International Airport, which is approximately a one-hour drive to our factory. We can arrange a car to pick you up upon your arrival. We warmly welcome you to visit our factory for an insightful business trip.