Crafted with premium wear-resistant materials and meticulously processed through forging, heat treatment, and precision grinding, our slitting blades boast exceptional accuracy and durability. They resist oil, heat, acids, and alkalis, ensuring longevity and maintaining their form even under the most demanding conditions. This guarantees precise slitting, especially for thin, delicate, and sensitive materials.
We provide comprehensive OEM and custom services tailored to your specific technical drawings or samples.
Processing Precision of Slitting Blades and Knives:
Surface Roughness: ≤ 0.002mm
Flatness and Parallelism: ≤ 0.001mm
Blade Heat Treatment Hardness: tailored to the material of the blade and the thickness of the cutting material
Heat Treatment Methods: Vacuum deoxidation treatment 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, as well as 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 are proud to offer bespoke, tailor-made solutions through our comprehensive customized and OEM services. Your unique specifications and requirements drive us to deliver excellence tailored just for you.
Product manufacturing flow
The hardness of materials and blades is paramount to the quality and service life of each blade. At Zhejiang Qinghao Intelligent Machinery Co., Ltd., we implement rigorous measures at every stage, from material selection to the final product, ensuring unmatched quality. Below is a reference table outlining the material correspondence:
We undertake rigorous product inspection prior to packaging, ensuring each blade and knife is in pristine condition. To safeguard against any potential damages during transportation, we meticulously place every item in robust, new, and secure export packaging.
Why Choose Qinghao Blades and Knives?
Qinghao blades and knives are renowned for their reliable quality and stable performance. With over 30 years of rich manufacturing experience in a multitude of industrial blades and knives, our products are extensively utilized across sectors such as metal, wood, food, paper, packaging, printing, rubber, non-woven, recycling, and metallurgical industries. Opting for Qinghao blades and knives translates to significant savings in both cost and time.
Through decades of development, we have cultivated a professional and experienced technical team, capable of offering you unparalleled technical support and expert solutions for any challenges encountered in your cutting operations.
Our professional heat treatment processing techniques, coupled with our patented technology, ensure that our blades and knives deliver outstanding cutting performance.
We provide OEM/ODM and customized services tailored specifically to your unique cutting requirements and needs upon request.
1. Are you a manufacturer?
Yes, Qinghao is an ISO-9000 certified blade and knife manufacturer situated in the scenic Hangzhou area of Zhejiang province, China. With over 30 years of rich heritage in blade and knife manufacturing, we are committed to delivering excellence.
2. How long has Qinghao been established?
Founded in the vibrant 1990s by Mr. Xuefu Rui, Qinghao has evolved over three decades into a premier leader in the blade industry. Our expansive product range now spans from single to multiple series, catering to both domestic and international markets.
3. What service does Qinghao provide?
Beyond our high-quality standard blades and knives, Qinghao excels in providing OEM, ODM, and customized solutions tailored to meet your unique cutting requirements and needs.
4. How to work with Qinghao?
Our dedicated sales and engineering teams will meticulously assess all your detailed blade requirements. We highly recommend sharing technical drawings or samples to facilitate initial discussions.
Once both parties have agreed on the technical specifics of the blade or knife, we will provide a comprehensive quotation sheet for your consideration.
Upon contract confirmation and receipt of payment, we will initiate production preparations and execute the order as per the agreed terms.
Your goods will be dispatched within the contracted timeline via sea, air, or express delivery, ensuring prompt and reliable service.
We offer a dedicated tracking service to monitor the blade's performance at your location, ensuring optimal satisfaction post-delivery.
5. How can I arrange a factory visit?
Our modern facility is located in Tongxiang city, Zhejiang, China, just an hour's drive from Xiaoshan International Airport. We are pleased to offer a complimentary car service to pick you up upon arrival. We warmly invite you to visit our factory for an enriching business trip.
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