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This section provides an overview for parallel chucks as well as their applications and principles. Also, please take a look at the list of 5 parallel chuck manufacturers and their company rankings. Here are the top-ranked parallel chuck companies as of June, 2025: 1.Star Automation Europe, 2.Nihon Pisco Co., Ltd..
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Categories Related to Parallel Chucks
A parallel chuck is a type of chuck with a parallel open/close mechanism, primarily used for workpiece transfer.
The parallel chuck grips the workpiece at the center, functioning similarly to a three-jaw scroll chuck used in machine tools such as machining centers and CNC lathes, but it is essentially a two-jaw structure, resulting in a more compact design.
As hand jaws can be attached to the fingers to match the shape of the workpiece, the chuck is highly versatile.
Parallel chucks are commonly used in workpiece transfer machines due to their lightweight and compact features. They are often used in loader machines connected to machine tools for supplying workpieces. Their low weight makes them suitable for high-speed loaders with strict maximum weight restrictions.
The shape of workpieces that can be gripped depends on the stroke of the fingers and the hand jaws to be installed, but cylindrical shaft material is typically suitable.
Generally, parallel chucks operate using compressed air supplied from an air compressor. An air cylinder is built inside the chucks, and the air cylinder is mechanically connected to the fingers via driving rollers. When air is supplied from the air supply port, the piston of the air cylinder is pushed, causing the driving roller to push the fingers closed. A single air supply port is called a "single acting type."
Some models have multiple air supply ports and are known as "double-acting types." With the double-action type, the gripping force can be adjusted depending on the air supply port used.
As an air chuck, it tends to have higher repeatability (±0.01 mm or so) compared to hydraulic or manual chucks. However, due to its compact structure, it is less suitable for clamping heavy workpieces.
*Including some distributors, etc.
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Nihon Pisco Co. Ltd., founded in 1976 and based in Nagano, Japan, is a manufacturer and distributor of pneumatic equipment and is ISO 9001 and ISO 14001 certified. The company stocks various products like valves, actuators, and vacuum accessories used in several industries, including semiconductor, medicine, and rechargeable battery. The company started selling push-in fitting for pneumatic piping in 1977 and launched the industry’s first push-in fitting built-in type speed controller in 1981. In 1993, it launched a few products, including a quick exhaust valve, a digital pressure sensor, and a vacuum generator with a digital pressure sensor.
CKD Corporation, established in 1943 under the name of Japan Aircraft Electric Co., Ltd., is a Japanese manufacturer of automation machinery and manufacturing components, headquartered in Komaki, Aichi. Their diverse portfolio includes pneumatic and fluid control components, fine system components, drive components, and labor-saving components. The company has also developed various types of automation machinery, such as transparent object inspection systems, pharmaceutical products packaging machines, and more. These products find applications in various industries, for example their automated food packaging systems are designed for maintaining food quality and hygienic conditions. Their fluid control components are used in the solar cell manufacturing process.
SMC corporation was founded in 1959 and is headquartered in Tokyo, Japan. SMC Corporation manufactures and sells automatic control equipment and filtration equipment. SMC has production facilities in 30 countries, technical development centers in Japan, the United States, Europe, and China, and sales offices, globally. SMC product lines divided by them include filter replacements, condensation prevention, heat resistance, thermos-chilling, and others. SMC provides a video library as well as product selection guide to assist customers in finding solutions and optimizing product efficiency.
Ranking as of June 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Star Automation Europe |
50.0%
|
| 2 | Nihon Pisco Co., Ltd. |
50.0%
|
Derivation Method
The ranking is calculated based on the click share within the parallel chuck page as of June 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
3 | 100.0% |
509 products found - Page 3
509 products - Page 3
Naka Seiki Co., Ltd.
190+ people viewing
■Features - Can be used for assembly, etc. by arranging multiple pieces in a small space. - Also convenient for transportation. ・Square shape with...
Naka Seiki Co., Ltd.
130+ people viewing
Last viewed: 1 hour ago
■Features - Ideal for turning long workpieces. ・Cross bar that allows long nails to be used stably. ・A chuck with excellent durability.
Nomura Manufacturing Co., Ltd.
150+ people viewing
Last viewed: 1 day ago
By adopting the world's only cam lever system, the Nippon Steel Precision Hollow Power Chuck is lightweight and compact, and enables high-speed, hi...
Naka Seiki Co., Ltd.
180+ people viewing
Last viewed: 14 hours ago
■Features ・Since the stroke is long, it is versatile for workpieces with different diameters. - Highly versatile, long stroke φ8mm.
Naka Seiki Co., Ltd.
150+ people viewing
Last viewed: 1 hour ago
■Features - Can be installed on a lathe for ultra-precision machining. ・Can also be used for grinding machines. - Strong grip on both external and...
NK Works Co., Ltd.
1100+ people viewing
Last viewed: 1 day ago
■Product overview INOFlex® is a flexible chuck suitable for almost all clamping tasks on modern machine tools. Regardless of workpiece geometry, wo...
7 models listed
Naka Seiki Co., Ltd.
170+ people viewing
Last viewed: 1 day ago
■Features - Ideal for boring small-diameter round workpieces with a lathe. ・The main body is thin and the space between the cores can be used widely.
Nomura Manufacturing Co., Ltd.
140+ people viewing
Last viewed: 47 minutes ago
By adopting the world's only cam lever system, the Nippon Steel Precision Hollow Power Chuck is lightweight and compact, and enables high-speed, hi...
Naka Seiki Co., Ltd.
190+ people viewing
Last viewed: 11 hours ago
■Features - Can be installed on an NC lathe and used for turning, winding, etc. ・High precision with repeatability of 2μ. Can be used at high spee...
NK Works Co., Ltd.
1420+ people viewing
Last viewed: 2 hours ago
■Product overview INOFlex® is a flexible chuck suitable for almost all clamping tasks on modern machine tools. Regardless of workpiece geometry, wo...
10 models listed
Naka Seiki Co., Ltd.
190+ people viewing
Last viewed: 18 hours ago
■Features ・Ideal for small-diameter round workpieces. - Aluminum is lightweight, making it suitable for robot hands. - Claw stroke is φ2mm. ・Repe...
Nomura Manufacturing Co., Ltd.
120+ people viewing
Last viewed: 23 minutes ago
By adopting the world's only cam lever system, the Nippon Steel Precision Hollow Power Chuck is lightweight and compact, and enables high-speed, hi...
Naka Seiki Co., Ltd.
160+ people viewing
■Features - A sensor can be inserted into the through hole and used as an inspection jig, etc. - Can also check seating, remove coolant, and remove...
Naka Seiki Co., Ltd.
210+ people viewing
■Features -Using the center hole, coolant, seating confirmation, and chip removal are possible. ・The type that supplies oil mist to the claw slidi...
Matsumoto Machine Industry Co., Ltd.
170+ people viewing
Last viewed: 1 day ago
■Grasping technique In addition to three general-purpose power chucks, we offer chucks that can accommodate a variety of workpiece shapes and usage...
Naka Seiki Co., Ltd.
140+ people viewing
Last viewed: 1 day ago
■Features ・Since the stroke is long, it is versatile for workpieces with different diameters. ・Long stroke φ10mm. ・High precision with repeatabi...
Naka Seiki Co., Ltd.
150+ people viewing
Last viewed: 1 day ago
■Features ・Ideal for small-diameter round workpieces. - Aluminum is lightweight, making it suitable for robot hands. ・Claw stroke φ5mm. ・Repeata...
NK Works Co., Ltd.
900+ people viewing
Last viewed: 13 hours ago
■Product overview INOFlex® is a flexible chuck suitable for almost all clamping tasks on modern machine tools. Regardless of workpiece geometry, wo...
4 models listed
Nakajima Koki Co., Ltd.
460+ people viewing
Last viewed: 3 hours ago
■Installation and use ・If the pressure in the pneumatic circuit were to drop, the workpiece would fall due to the reduced gripping force. Install ...
7 models listed
Naka Seiki Co., Ltd.
210+ people viewing
■Features -Using the center hole, coolant, seating confirmation, and chip removal are possible. ・The type that supplies oil mist to the claw slidi...
Nomura Manufacturing Co., Ltd.
130+ people viewing
Last viewed: 1 day ago
By adopting the world's only cam lever system, the Nippon Steel Precision Hollow Power Chuck is lightweight and compact, and enables high-speed, hi...
TAIYO Co., Ltd.
240+ people viewing
Last viewed: 6 hours ago
Electricity is realized at the cost of an air gripper. Features ■Smoother replacement than air gripper ・Can operate with only open/close signals ...
Naka Seiki Co., Ltd.
190+ people viewing
Last viewed: 1 day ago
■Features - Ideal for transporting and assembling long workpieces. ・It is lightweight and compact, so it is easy to install. ・Cross bar that allo...
TAIYO Co., Ltd.
220+ people viewing
Closed-loop control using a stepping motor and rotary encoder achieves high-precision gripping force, position, and speed control that goes beyond ...
Naka Seiki Co., Ltd.
200+ people viewing
Last viewed: 22 hours ago
■Features ・It is effective in transporting and assembling long workpieces. - Also suitable for robot hands. ・Cross bar that allows long nails to ...
Pioneer Trading Co., Ltd.
150+ people viewing
Over 40 years, sales have exceeded 30,000 units. With the technology and know-how we have cultivated over many years, we are delivering the most re...
Pioneer Trading Co., Ltd.
170+ people viewing
Over 40 years, sales have exceeded 30,000 units. With the technology and know-how we have cultivated over many years, we are delivering the most re...
Pioneer Trading Co., Ltd.
150+ people viewing
Workpieces can be held in place using any other chucking method, including the use of the elastic force of special metal coatings. This makes it po...
Pioneer Trading Co., Ltd.
130+ people viewing
Over 40 years, sales have exceeded 30,000 units. With the technology and know-how we have cultivated over many years, we are delivering the most re...
Pioneer Trading Co., Ltd.
170+ people viewing
Last viewed: 5 hours ago
Over 40 years, sales have exceeded 30,000 units. With the technology and know-how we have cultivated over many years, we are delivering the most re...
