Zhejiang Qinghao Intelligent Machinery Co., Ltd.
The cutting blades and slitting knives are crafted from high-quality imported raw materials, ensuring durability and wear-resistance. Utilizing professional heat treatment and surface grinding techniques, these blades offer exceptional sharp cutting ability, reduced cutting resistance, and high wear-resistance during high-speed cutting work, significantly enhancing work efficiency.
We provide OEM/ODM/Custom services based on technical drawings or samples. The processing accuracy of our slitting blades and cutting knives includes:
- Surface roughness: ≤ 0.002mm
- Diameter size: 300-1000mm
- Thickness: 0.5-300mm
- Blades heat treatment hardness: determined by blade material and cutting material thickness
- Heat treatment method: vacuum deoxidation treatment and salt bath furnace treatment
We offer circular blades and knives made from materials such as SKH-9, SKD-11, LD, W6Mo5Cr4V2AL, H13K, M42, K30, ASP60 power alloy steel, and other custom materials.

Product Description
Strict Material Selection and Exquisite Craftsmanship
Our cutting blades and slitting knives are crafted with advanced heat treatment techniques using high-quality steel, both locally sourced and imported. This ensures precision and top-notch quality in our products.
Product Description:
Introducing the cutting blades and slitting knives from Zhejiang Qinghao Intelligent Machinery Co., Ltd. Our blades are designed with a sharp edge and are free of burrs, thanks to the high precision grinder used during the grinding process. This ensures a smooth blade body, attractive cutting surface, and a prolonged blade service life.


Product Description:
Experience stable performance with the cutting blade and slitting knives from Zhejiang Qinghao Intelligent Machinery Co., Ltd. Our products are crafted with advanced heat treatment technology and sharp cutting edges, ensuring wear and aging resistance. Enjoy high working efficiency, high-speed cutting with minimal resistance, and impeccable surface finish with our cutting tools.
Customization of Non-Standard Types and Professional Manufacturing
Looking for customized cutting blades and slitting knives? Look no further than Zhejiang Qinghao Intelligent Machinery Co., Ltd. With decades of experience in the mechanical blades industry, we specialize in providing OEM/ODM and customized services tailored to meet your unique cutting needs.


Zhejiang Qinghao Intelligent Machinery Co., Ltd.
When it comes to blade quality and service life, material and hardness play a crucial role. At Zhejiang Qinghao Intelligent Machinery Co., Ltd., we prioritize these factors to ensure top-notch products. Our meticulous approach spans from material selection to the final product. Refer to the material correspondence table below:
Material | Blade Hardness |
---|---|
Material A | Hardness Level 1 |
Material B | Hardness Level 2 |
Material C | Hardness Level 3 |


Zhejiang Qinghao Intelligent Machinery Co., Ltd.
At Zhejiang Qinghao Intelligent Machinery Co., Ltd., we conduct rigorous product inspections before packaging to ensure that every blade and knife is in pristine condition. Our products are carefully placed in secure export packaging to prevent any potential damage during transportation.





Why choose Qinghao blades and knives?
- Qinghao cutting blades and slitting knives have reliable quality and stable performance. With over 30 years of manufacturing experience in various industrial blades and knives, our products are widely used in metal, wood, food, paper, packaging, printing, rubber, non-woven, recycling, metallurgical industries, etc. Using Qinghao blades and knives can help save costs and time.
- With decades of development, we have established a professional and experienced technical team capable of providing customers with technical support and solutions for cutting work issues.
- Professional heat treatment processing techniques and patented technology ensure excellent cutting performance for our blades and knives.
- OEM/ODM/Customized services are available upon receiving private cutting requirements, drawings, or samples.
Company name: Zhejiang Qinghao Intelligent Machinery Co., Ltd.



Welcome to Zhejiang Qinghao Intelligent Machinery Co., Ltd.
Zhejiang Qinghao Intelligent Machinery Co., Ltd. is an ISO-9000 certified blade and knife manufacturer based in Hangzhou, Zhejiang province, China. With over 30 years of experience in the industry, we offer a wide range of high-quality blades and knives to meet your cutting needs.
Key Features:
- Established in the 1990s by Mr. Xuefu Rui
- Leading manufacturer with a diverse product range
- Offering OEM/ODM/customized services
- Experienced sales and engineering team
- Efficient production process
- Global delivery options
- Tracking service for blade use condition
How to Work with Us:
- Discuss your blade requirements with our team
- Receive a detailed quotation
- Confirm the contract and make payment
- Production preparation and order fulfillment
- Delivery by sea, air, or express
- Tracking service post-delivery
Factory Visit:
Our factory is located in Tongxiang city, Zhejiang, China, with the nearest airport being Xiaoshan International Airport. We can arrange for transportation from the airport to our facility for your convenience. We welcome you to visit our factory for a business trip.