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STANDARD MOLD PARTS MANUFACTURER

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HIGH-PRECISION NON-STANDARD PARTS MANUFACTURER

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Provide various high-end mold parts

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PRODUCTS

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Ejector Pin Series

DIN 1530A Nitrided Ejector Pin

Material：SKD61(1.2343)
Surface Hardness：>HV950
Inside Hardness：HRC40-45

Ejector Pin Series

Black Oxidized Ejector Pin

Material：SKD61（1.2343）
Surface Hardness：>HV950
Inside Hardness：HRC40-45

Ejector Pin Series

DIN 1530AH Hardened Ejector Pin

Material：SUJ2(1.2210)
Head Hardness：HRC45±5
Body hardness：HRC60±2

Punch Series

DIN9861D Standard Punch

Material：HSS/SKD11/WS
Head Hardness：HRC45±5
Body hardness：HRC62±2

Punch Series

DIN 8020A Standard Punch

Material：HSS/SKD11
Head Hardness：HRC50±5
Body hardness：HRC62±2

Punch Series

Precision ISO 8020 T Type Ejector Punch

Material：HSS/HSS/ASP23
Headness：HRC62±2

Guide Pin and Bush Series

Guide Bush Z1210/Z1211

Material： WS(1.2210)
Headness：HRC60±2

Sprue Bush Series

Sprue bush

Material：WS(1.2210)
Headness： HRC55±2

Sprue Bush Series

Sprue bush

Material：WS(1.2210)
Headness：HRC55±2

Sprue Bush Series

Spiral Drainage Sprue Bush

Material：SUS420
Headness：HRC45-50

Guide Pin and Bush Series

Guide Bush Z1230/Z1231

Material： WS(1.2210)
Headness：HRC60±2

Guide Pin and Bush Series

Guide Bush Z1250

Material： WS(1.2210)
Headness：HRC60±2

Date Stamp Series

Traditional Date Stamp

Material： SUS420
Headness：HRC48-54

Date Stamp Series

Replaceable Date Stamp

Material： SUS420
Headness：HRC48-54

Date Stamp Series

D.FYM Date Stamp

Material： SUS420
Headness：HRC48-54

Ejector Pin Series

DIN 1530D Ejector Pin

Material：WS(1.2210)
Head Hardness：HRC45±5
Body Hardness：HRC60±2

Ejector Pin Series

JIS Standard Ejector Pin

Material：SKD61(1.2343)
Surface Hardness：HV1000±100
Inside Hardness：HRC40-45

Ejector Pin Series

DIN 1530CH Hardened Stepped Ejector Pin

Material：WS(1.2210)
Head Hardness：HRC45±5
Body Hardness：HRC60±2

Ejector Pin Series

Inch Nitrided Stepped Ejector Pin

Material：SKD61(1.2343)
Surface Hardness：＞HV950
Inside Hardness：HRC40-45

Ejector Pin Series

DIN 1530FA Nitrided Blade Ejector Pin

Material：SKD61(1.2343)
Surface Hardness：＞HV950
Inside Hardness：HRC40-45

Ejector Pin Series

DIN 1530FAH Hardened Blade Ejector Pin

Material：WS(1.2210)
Head Hardness：HRC45±5
Body Hardness：HRC60±2

Ejector Pin Series

DIN 1530F Hardened Blade Ejector Pin

Material：WS(1.2210)
Head Hardness：HRC45±5
Body Hardness：HRC60±2

Ejector Pin Series

DIN16756 Stepless Sleeve

Material：WS(1.2210)
Head Hardness：HRC45±5
Body Hardness：HRC60±2

Ejector Pin Series

DIN 16756 Nitrided Ejector Sleeve

Material：SKD61(1.2343)
Head Hardness：HRC45±5
Surface Hardness：HV1000±100

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ABOUT US

2008 year

Established In

100 +

Active Employee

3000 +

Factory Area

Changsha Borun Mould Co.,Ltd.

Changsha Borun Mould Co., Ltd. backed by the NITONI brand products independently R&D and manufactured by its holding subsidiary, Changsha Borun Precision Co., Ltd.—including die springs, ejector pins, ejector sleeves, punches, guide pins and bushes, oilles sbushes, cooling nozzles, hot runner components, as well as various non-standard precision parts—and supported by a world-class professional team specialized in mould accessory sales, technology and services, Changsha Borun Mould Co., Ltd. has evolved into a first-class international supplier integrating a full range of standard and non-standard mould components.

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Application field of plastic molds

Plastic molds are used for the molding of various plastic products (such as home appliance casings, automotive plastic parts, electronic components, etc.), which have extremely high requirements for the precision, wear resistance, and temperature resistance of components. The core adaptive components and application values are as follows:

Application field of hardware molds

Hardware molds are used for stamping, bending, and drawing molding of metal materials (such as automotive sheet metal, hardware accessories, electronic hardware parts, etc.), which have strict requirements for the hardness, wear resistance, and impact resistance of components. The core adaptive components and application values are as follows:

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Application field

Relying on professional R&D and production capabilities, Borun Moulds' "Mitami" brand mold components cover three core mold fields: plastic molds, hardware molds, and die-casting molds. With the product characteristics of high precision, high adaptability, and high cost-effectiveness, it provides core support for the stable operation of various molds and meets the needs of global mid-to-high-end mold manufacturing.

Application fields of die-casting molds

Die-casting molds are used for high-pressure die-casting molding of non-ferrous metals (aluminum, zinc, magnesium alloys, etc.) (such as automotive engine blocks, gearbox housings, hardware die-castings, etc.). The working environment is high temperature and high pressure, which has extremely high requirements for the high temperature resistance, corrosion resistance, and pressure resistance of components. The core adaptive components and application values are as follows:

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Exploring the Versatility of Traditional Date Stamps in Various Industries

20 May,2026

Exploring the Versatility of Traditional Date Stamps in Various Industries

Exploring the Versatility of Traditional Date Stamps in Various Industries In an age where digital tools dominate many aspects of business operations, traditional date stamps continue to hold their ground across various industries. These simple yet effective tools have evolved significantly, proving their worth in enhancing organizational efficiency, compliance, and documentation accuracy. This ar

20 May,2026