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We will continue to adhere to the "customer first, credit first" purpose, with the most preferential price, best quality products and most perfect service to meet the needs of users, in the customer need to satisfy our customers in the first time.

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WHO WE ARE?
Maanshan Licheng blade manufacturing co., LTD. We use a wide range of high-quality imported and local materials, along with advanced heat treatments, including vacuum heat treatment, subzero heat treatment, and salty bath heat treatment, to ensure a better performance of the inner character of knives.  Elaborate design and fine processing, multiple rounds of quality control, and warm after-sales service have made our products popular in Mainland China, South Korea, America, South Asia, Europe, and other regions.  We have received high praise from the following cooperating customers: Hankook Tire. POSCO Holdings Inc. Gold Hongye Paper Group Co., Ltd. Sichuan Changhong Battery Co., Ltd. South Aluminum (China) Co., Ltd. Chalco Luoyang Copper Industry Co., LTD. Huida Sanitary Ware Co., Ltd. KDX Composite Material Group Co., Ltd. Mohawk Industries. Gates Corporation. Galanz Enterprises Group Co., Ltd., Azovstal Steel Plant. etc. Since 2003, we have developed an integrated production, supply, and marketing system for our distributors, renowned for our excellent OEM blades. Guided by pragmatism, innovation, and a pioneering spirit, LCKNIFE consistently delivers a comprehensive range of reliable cutting solutions: • Belt knives, teeth knives, thin & special-shaped blades – for cutting tape, plastic film, sponge, and EVA foam; widely used in the OEM packaging industry. • Stainless steel blades, like SUS301, SUS420, and SUS440 -for the food processing industry. • Rewinder and Cutting knives – for the paper-making industry, like tissue, corrugated board, etc • Slitting and Shearing knives – for the metallurgy industry, such as steel sheet trimming, aluminum foil, and copper film rewinding. • Chopping and Chipping knives- for the wood flooring industry. • Tooth knives and Guillotine knives – for the tire and rubber processing industry. • Granulator and Pelleting knives – for the waste recycling industry. Company spirit: We will continue to adhere to the "customer first, credit first" purpose, with the most preferential price, best quality products and most perfect service to meet the needs of users, in the customer need to satisfy our customers in the first time. Rely on innovation and excellent quality, first-class products, create first-class benefits, to create a brilliant future with you! According to each of our valued customers in the whole process of the actual demand to provide professional, personalized application solutions, to help our customers at a lower cost to enjoy a high standard of professional services.
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21 Years Of Experience In Various Cases

We will continue to adhere to the "customer first, credit first" purpose, with the most preferential price, best quality products and most perfect service to meet the needs of users, in the customer need to satisfy our customers in the first time.
1999
COMPANY  ESTABLISHED
800
NATIONAL CUSTOMER
500
Capacity per month
5600
FACTORIES area
Latest News
Latest News

How to Prevent Distortion and Cracking in Ultra-Long Shear Blades
Jul 20, 2026 How to Prevent Distortion and Cracking in Ultra-Long Shear Blades
In modern metal fabrication, ultra-long CNC shear blades (exceeding 3 meters) demand absolute precision. Achieving flawless parallelism, straightness, and uniform hardness is a major challenge. Because these components are exceptionally long, they are highly prone to thermal distortion and cracking during the heat treatment process. How can manufacturers prevent these critical defects? The secret lies in precise material selection and a strict, two-stage preheating protocol. 1. Choose the Right High-Alloy Tool Steel Preventing failure starts with metallurgy. For heavy-duty, extra-long shear blades, standard steels won’t suffice. Industry leaders rely on premium high-alloy tool steels like Cr12MoV, DC53, LD, and H13K. These materials offer the high wear resistance and core toughness required to withstand immense shearing forces without snapping or warping. 2. Implement a Two-Stage Preheating Process During the heating cycle, steel naturally expands. However, upon reaching its phase transition point, the material undergoes volumetric contraction. In a 3-meter integrated blade, this uneven expansion and contraction creates massive internal stresses, leading to warping or cracking. To eliminate this stress, a two-stage preheating technique is essential before final quenching: Stage 1 (Isothermal Soaking): Heat the blade to 500°C and hold it at an isothermal state. This ensures uniform temperature from the core to the surface. Stage 2 (Transition Heating): Gradually ramp the temperature up to 850°C for a second preheat before raising it to the final quenching temperature. Minimizing heat treatment distortion in ultra-long shear blades requires strict tolerance control. By utilizing advanced alloys like DC53 or H13K and mastering the two-stage preheating cycle, you can drastically reduce internal stress, eliminate cracking, and ensure perfect blade straightness for high-precision CNC cutting operations.
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Trade Shows
Trade Shows

We will continue to adhere to the "customer first, credit first" purpose, with the most preferential price, best quality products and most perfect service to meet the needs of users, in the customer need to satisfy our customers in the first time.

APFE 2017

Icorrugated Asia Expo 2017

Film Expo ShenZhen 2016

CIDPEX 2015

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