Description 4 Manufacturers 398 Products

4 Insulated Crimp Sleeve Manufacturers in 2025

This section provides an overview for insulated crimp sleeves as well as their applications and principles. Also, please take a look at the list of 4 insulated crimp sleeve manufacturers and their company rankings.

Table of Contents

What Is an Insulated Crimp Sleeve?
List of 4 Insulated Crimp Sleeve Manufacturers
List of 398 Insulated Crimp Sleeve Products
Global Distribution of Insulated Crimp Sleeve Manufacturers by Country

Supervisor of this article

Michiya Maeda

Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer. Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.

What Is an Insulated Crimp Sleeve?

Insulated Crimp Sleeves

An insulated crimp sleeve is a crimp sleeve with an insulated surface. It is mainly used to connect wires at intermediate points.

The insulation coating electrically insulates the wires from other circuits and components, preventing electrical contact with the external environment. This prevents electrical shorts and leakage, and also ensures safety.

It also protects conductors from external factors such as vibration and chemicals, preventing damage and deterioration. It can also improve various performance characteristics, such as wear resistance.

However, it is important to install the sleeves correctly. Using a crimping tool, the sleeve must be securely fastened to the conductor. If not correctly installed, the insulating and protective effects are likely to be compromised.

Uses of Insulated Crimp Sleeves

Insulated crimp sleeves are used in a variety of industries. However, all of them are used for electrical wiring connections. They are not used for any other purpose.

They are generally used for repairing wiring. When wiring fails due to wire breakage, etc., it may be connected at an intermediate point for collection. By using insulated crimp sleeves for collection, it is possible to electrically connect the failed wiring while insulating it from the external environment by means of the insulated coating.

They may also be used when relocating equipment. When relocating industrial equipment that is in fixed use, it is not uncommon for the length of electrical wiring to be insufficient. By using insulated crimp sleeves, the same type of wiring can be spliced together.

They are used in a wide range of industries, from construction to the automotive industry. In buildings, they are used to connect in-wall wiring, while in automobiles they are used to connect harnesses.

Principle of Insulated Crimp Sleeves

Insulated crimp sleeves generally consist of two main parts: the insulation and the conductor. The insulation coating and the conductor.

1. Insulation Coating

The insulation coating is located on the outside of the sleeve and insulates and protects the conductor. Insulation performance is achieved by using an insulation coating such as vinyl chloride or nylon. Rubber and other materials may also be used.

It provides electrical insulation and cuts off electrical contact between the conductor and the external environment. This prevents electrical shorts and leakage currents.

It also provides physical protection and shields the conductor from the outside environment. The insulation coating serves to protect the conductor from elements such as friction and moisture.

2. Conductors

The conductor is the part of the sleeve that is inside and is responsible for transmitting electrical signals and power. It is generally made of metal and must be conductive and durable. Since adhesion to the wires is also important, soft materials such as oxygen-free copper are often used.

When making connections with wires, the use of crimping tools is recommended. Crimping with a crimping tool is called crimping. By using crimping pliers that are appropriate for the size of the joint of the crimped terminal, it is possible to make a tight fit and connection with normal power.

The wire is inserted into the crimped portion of the terminal with the insulation covering stripped away and the conductor exposed. Appropriate pressure is applied using a crimping tool to firmly secure the wire so that the conductors are in direct contact with each other. The wire connection section ensures a secure connection between the wire and the insulated crimp sleeve.

How to Select an Insulated Crimp Sleeve

When selecting an insulated crimp sleeve, it is important to consider the sleeve diameter, insulation material, and shape.

1. Sleeve Diameter

Sleeve diameter is the size of the conductor sleeve. Recommended wire diameters are listed in catalogs, etc. Generally, selection is based on the diameter of the wires to be connected. It is important to select a sleeve with a sufficient diameter even when multiple wires are to be crimped together.

2. Material

The material of the insulation coating should be selected from nylon or polyvinyl chloride. In general, nylon has a higher heat resistance temperature.

3. Shape

Various shapes of insulation sheaths are available. In general, straight sleeves are often selected. When wiring is detached, plug-in connection sleeves may be selected.

List of 4 Insulated Crimp Sleeve Manufacturers

*Including some distributors, etc.

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United States of America
Japan
United Kingdom

- - Specialties Co. Distributor
    PVC Crimp Sleeve
  - Website
    
    Founded: 1967
    
    United States, Texas
    
    Company Profile
  - Address: 11 North Gulf Blvd, Freeport, Texas, United States of America
  Distributor Overview
  
  Specialties Company is a supplier of various types of hoses, founded in 1967 and located in Freeport, Texas, United States. The company supplies air hoses, check valves, material handling hoses, and dry disconnect fittings to its customers. It also delivers rubber expansion joints, rigging equipment, gaskets, and food & beverage hoses. It serves various industries, including chemical, petroleum, gas, rigging equipment, and fittings industries. The company achieved WBENC certification for women-owned businesses and NAHAD certification for hose engineering and production capabilities.
- - NICHIFU TERMINAL INDUSTRIES CO., LTD./NICHIFU CO., LTD. Manufacturer
    Insulated Crimp Sleeve
  - Website
    
    Founded: 1941
    
    Japan
    
    Company Profile
  - Address: 1-3-58 Tsurumi, Tsurumi-Ku, Osaka, Japan
  Manufacturer Overview
  
  NICHIFU TERMINAL INDUSTRIES CO., LTD./NICHIFU CO., LTD., established in, Japan, in 1941 is a manufacturer of electrical products. Their products range include solderless terminals, indoor electrical wiring, connectors and power line connection that are produced with the accordance of Japanese Industrial Standards. In 1967 the company opened new factory and head office in Tsurumi, Osaka for rationalized production and development of new products and they have distributions and service all around the world.
- - J.S.T. Mfg. Co.,Ltd. Manufacturer
    Solderless Splices
  - Website
    
    Founded: 1957
    
    Japan
    
    Company Profile
  - Address: 3-4-7, Doshomachi, Chuo-ku, Osaka, Japan
  Manufacturer Overview
  
  JST Group, founded in 1957, is an international manufacturing company specializing in the development of all types of systems for connecting electric power and electronic devices. It obtained ISO9002 approval in 1993, and it has gone on to open offices and affiliated companies in Europe, America and other parts of Asia. JST uses modern advances like ultraprecision technology, gold plating processes, CNC copy grinder, to ensure quality and improved performance of every appliance it manufactures. JST products can be used in televisions, laptops, trains, medical equipments and even kitchen appliances.
- - Analogue Seduction
    Insulated Crimp Sleeves
  - Website
    
    Founded: 2005
    
    United Kingdom
    
    Company Profile
  - Address: Manor View Whittlesey Peterborough, Cambridgeshire, United Kingdom

Insulated Crimp Sleeve Manufacturer Ranking

*Including some distributors, etc.

Number of Employees

Newly Established Company

Analogue Seduction: 2005 (20 years ago)
Specialties Co.: 1967 (58 years ago)
J.S.T. Mfg. Co.,Ltd.: 1957 (68 years ago)

Company with a History

NICHIFU TERMINAL INDUSTRIES CO., LTD./NICHIFU CO., LTD.: 1941 (84 years ago)
J.S.T. Mfg. Co.,Ltd.: 1957 (68 years ago)
Specialties Co.: 1967 (58 years ago)

Insulated Crimp Sleeve Manufacturers in United States

*Including some distributors, etc.

Specialties Co.

Global Distribution of Insulated Crimp Sleeve Manufacturers by Country

*Including some distributors, etc.

Country	Number of Companies	Share (%)
Japan	2	50.0%
United States of America	1	25.0%
United Kingdom	1	25.0%

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List of Insulated Crimp Sleeve Products

398 products found

398 products

Nimatsu Electric Co., Ltd.

Crimp terminal Insulating sleeve Crimp hand tool

220+ people viewing

CALY is a Taiwanese manufacturer of crimp terminals and insulation sleeves established in 1968. Most of CALY's insulated and non-insulated crimp te...

Nimatsu Electric Co., Ltd.

Crimp terminals round, Y-shaped, flat, rod-shaped, butted, ferrule, 3-way, 4-way

170+ people viewing

Last viewed: 1 day ago

JEESOON TERMINALS is a Taiwanese crimp terminal manufacturer established in 1995. ISO 9001, ISO 14001, UL, CUL certified and RoHS compliant. Jeesoo...

Daiji Co., Ltd.

Insulated wire joint with nylon insulation coating, crimp closed end connection terminal

360+ people viewing

Last viewed: 1 day ago

*Nylon is highly hygroscopic, so please be careful not to store it in hot, humid or dry places. Especially in winter, it tends to dry easily and ca...

2 models listed

Daiji Co., Ltd.

Ferrule connection terminal with nylon insulation DIN46228

620+ people viewing

■Features -Special terminal for use with plug-in or screw type terminal blocks. ・No soldering is required, and you can reliably connect even unsta...

10 models listed

Daiji Co., Ltd.

Plug-in type connection terminal Insulated bullet connection terminal

400+ people viewing

4 models listed

e431 Co., Ltd.

Power cable/terminal/connector Insulated closed end connector (CE type) CPL-CE2

300+ people viewing

480+ people viewing

Last viewed: 1 hour ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

10 models listed

Daido terminal manufacturing

Insulated coated pressed terminal plate -shaped terminal APAP type straight type (nylon) 1.25 ~ 2SQ Ⅱ

400+ people viewing

Last viewed: 2 hours ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

2 models listed

Daido terminal manufacturing

Insulated coating Sleeve Sleeve Sleeve BPP type extension (nylon) 1.25 ~ 2SQ

360+ people viewing

Last viewed: 1 day ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

2 models listed

Daido terminal manufacturing

Insulated coating pressed terminal horizontal terminal extension (vinyl)

600+ people viewing

Last viewed: 1 day ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

5 models listed

Daido terminal manufacturing

Insulated coating pressed terminal hook type terminal extension (nylon)

490+ people viewing

Last viewed: 20 minutes ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

9 models listed

Daido terminal manufacturing

Insulated coated pressed terminal plate -shaped terminal BVAP type extension (vinyl) 0.5 ~ 5.5sq I

580+ people viewing

530+ people viewing

Last viewed: 6 hours ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

10 models listed

Daido terminal manufacturing

Insulated coating pressed terminal plate -shaped terminal BPAP type extension (nylon) 1.25 ~ 2sq I

500+ people viewing

Last viewed: 3 hours ago

■ Ingredients JIS H3100, C1020 or equivalent or higher copper specified in H3300. The material of the insulator is vinyl or nylon. ■ With dowel We...

10 models listed

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4 Insulated Crimp Sleeve Manufacturers in 2025

What Is an Insulated Crimp Sleeve?

Uses of Insulated Crimp Sleeves

Principle of Insulated Crimp Sleeves

1. Insulation Coating

2. Conductors

How to Select an Insulated Crimp Sleeve

1. Sleeve Diameter

2. Material

3. Shape

List of 4 Insulated Crimp Sleeve Manufacturers

Specialties Co. Distributor PVC Crimp Sleeve

Distributor Overview

NICHIFU TERMINAL INDUSTRIES CO., LTD./NICHIFU CO., LTD. Manufacturer Insulated Crimp Sleeve

Manufacturer Overview

J.S.T. Mfg. Co.,Ltd. Manufacturer Solderless Splices

Manufacturer Overview

Analogue Seduction Insulated Crimp Sleeves

Insulated Crimp Sleeve Manufacturer Ranking

Insulated Crimp Sleeve Manufacturers in United States

Global Distribution of Insulated Crimp Sleeve Manufacturers by Country

List of Insulated Crimp Sleeve Products

Crimp terminal Insulating sleeve Crimp hand tool

Crimp terminals round, Y-shaped, flat, rod-shaped, butted, ferrule, 3-way, 4-way

Insulated wire joint with nylon insulation coating, crimp closed end connection terminal

Ferrule connection terminal with nylon insulation DIN46228

Plug-in type connection terminal Insulated bullet connection terminal

Power cable/terminal/connector Insulated closed end connector (CE type) CPL-CE2

Insulated coating pressed terminal round terminal extension (nylon)

Insulated coating pressed terminal plate -shaped terminal AVAP type straight type (vinyl) 0.5 ~ 5.5sq I

Insulated coating pressed terminal rod -shaped terminal extension (vinyl)

Insulated coating pressed terminal corner tip open terminal straight type (nylon)

Insulated coating pressed terminal plate -shaped terminal AVAP type straight type (vinyl) 1.25 ~ 2SQ Ⅱ

Insulated coating Sleeve Sleeve Sleeve Sleeve Sleeve App type straight type (nylon) 0.5 ~ 5.5SQ

Insulated coating pressed terminal corner tip open terminal extension (vinyl)

Insulated covered pressed terminal corner tip open terminal extension (nylon)

Insulated coating pressed terminal plate -shaped terminal Apap type straight type (nylon) 0.5 ~ 5.5sq I

Insulated coating Sleeve Sleeve Sleeve Sleeve Sleeve AVP Straight type (vinyl) 0.5 ~ 5.5SQ

Insulated coating pressed terminal rod -shaped terminal straight type (vinyl)

Insulated and coated pressed terminal hook type terminal extension (vinyl)

Insulated coated pressed terminal plate -shaped terminal APAP type straight type (nylon) 1.25 ~ 2SQ Ⅱ

Insulated coating Sleeve Sleeve Sleeve BPP type extension (nylon) 1.25 ~ 2SQ

Insulated coating pressed terminal horizontal terminal extension (vinyl)

Insulated coating pressed terminal hook type terminal extension (nylon)

Insulated coated pressed terminal plate -shaped terminal BVAP type extension (vinyl) 0.5 ~ 5.5sq I

Insulated coating pressed terminal hook type terminal straight (vinyl)

Insulated coated pressed terminal interlock type terminal straight type (vinyl)

Insulated coated pressed terminal plate -shaped terminal BVAP type extension (vinyl) 1.25 ~ 2SQ Ⅱ

Insulated coating Sleeve Sleeve Sleeve Sleeve APB type straight (nylon) 0.5 ~ 5.5SQ

Insulated coated pressed terminal rod -shaped terminal straight type (nylon)

Insulated coating pressed terminal interlock type terminal straight type (nylon)

Insulated coating pressed terminal plate -shaped terminal BPAP type extension (nylon) 1.25 ~ 2sq I

Related Keywords

Specialties Co. Distributor
PVC Crimp Sleeve

NICHIFU TERMINAL INDUSTRIES CO., LTD./NICHIFU CO., LTD. Manufacturer
Insulated Crimp Sleeve

J.S.T. Mfg. Co.,Ltd. Manufacturer
Solderless Splices

Analogue Seduction
Insulated Crimp Sleeves