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Manufacturing Process

Quality born from advanced technology

From material selection to final inspection, our fully integrated in-house production process ensures the delivery of “high quality” products. We emphasize thorough process management to reduce costs and maintain a swift manufacturing system. Starting each day with a morning assembly, our production site is dedicated to strict safety management and operates under the principles of 4M1I, with a commitment to putting the customer first. We work as “ONE TEAM” to continuously improve our skills and deliver products that meet our customers’ satisfaction.

Material Selection

Selection of the optimal steel grade based on proven experience and expertise

Based on the shearing specifications, we select the optimal steel grade from a wide range of materials,
including wear-resistant steel and tough steel. The selection process takes into account the conditions of the materials
to be sheared, past performance, and other relevant factors. Our blade steels are primarily based on die steel and high-speed steel, with proprietary steel grades available.

Cutting, Forging, Annealing

Considering the dimensions and materials, we select the optimal processing method.

We perform material cutting with consideration for product dimensions, machining allowances, and grinding allowances.
For large blades and other components requiring forging, we consider the weight before cutting. For straight blades, we choose between rolled material or forged material for cutting. For circular blades, we decide between using round bars or forging before cutting.
After forging, we conduct annealing to adjust hardness and refine the material structure.

Machining

We adjust for dimensional changes caused by heat treatment and accommodate various conditions.

We apply the required grinding allowance to the product and carry out machining accordingly. Machining is performed with consideration for dimensional changes due to heat treatment and the grinding allowance. The machining specifications vary depending on the steel grade, product dimensions, shape, and specified hardness.

Heat Treatment

A crucial process that is key to the performance of the blade.

Heat treatment is a critical process that is key to the performance of the blade.
By maintaining a consistent temperature distribution during heating and cooling,
we minimize variations in hardness. The heating pattern and cooling method are adjusted according to the steel grade and specified hardness.

Grinding Process

The final grinding process imparts sharpness to the shearing blade.

The grinding process is the final stage of blade manufacturing, where we utilize the latest equipment and grinding techniques to achieve the desired dimensional tolerances and precision. For each steel grade and specified surface roughness,
we select the appropriate grinding wheel and set the optimal grinding conditions, ensuring that the shearing blade is given its sharpness.

Wire EDM & Surface Treatment

Surface treatment enhances the properties of the blade.

Depending on the product’s shape, wire EDM is employed. We have three large machines with a table stroke of 2000mm, and the fully submerged process ensures minimal deformation, allowing for high-precision and high-speed machining. Various surface treatments are applied to enhance the properties of the blades.

Inspection

High-quality inspection to meet stringent precision requirements.

Once the finishing process is complete, the products undergo final inspection based on the specified requirements. Products that pass inspection are carefully packaged and shipped to our customers. To meet stringent precision demands, we conduct thorough product inspections using high-quality standards.

Shinko-Hamono's products are making a difference right here!

Steel manufacturing, secondary processing, recycling, and machine parts production

Manufacturing Process

Video introduction and manufacturing process flow

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After-sales service