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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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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 2
509 products - Page 2
Global Parts Co., Ltd.
740+ people viewing
Last viewed: 3 hours ago
■Features ・Grasp the workpiece end face and prevent workpiece deformation ・Ideal for thin-walled workpieces ・Compensation type, also possible to...
5 models listed
Global Parts Co., Ltd.
1590+ people viewing
Last viewed: 4 hours ago
■Features ・Vedge hook type two claws ・Harden, polish and directly lubricate the working end surface ・Pursuing high rigidity and high gripping ac...
9 models listed
Global Parts Co., Ltd.
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■Features ・Grasp the workpiece by swinging ・Centering with center thimble, compensates for 2mm eccentricity of workpiece ・Special waterproof sea...
2 models listed
Global Parts Co., Ltd.
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Last viewed: 1 hour ago
■Features ・2-jaw crank type power chuck ・Large stroke ・Full surface hardening polishing and direct lubrication of the working end surface ・High...
9 models listed
Global Parts Co., Ltd.
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Last viewed: 20 minutes ago
■Features ・Pin arbor retractable three-jaw ・Pursuing high gripping power and high precision ・Ideal for heavy cutting
7 models listed
Global Parts Co., Ltd.
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■Features ・Thin rotary chuck with built-in air cylinder ・Suitable for light cutting. Standard natural nails and standard hard nails can be used. ...
Global Parts Co., Ltd.
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■Features ・Swinging type three claws (3W is automatic centering) ・Suitable for processing casting and forging materials - Comes with a dust-proof...
2 models listed
Global Parts Co., Ltd.
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■Features ・Pulls the workpiece in the axial direction at the same time to reduce lifting of the workpiece ・Hardened main body realizes high rigid...
7 models listed
Global Parts Co., Ltd.
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■Features ・2-jaw crank type power chuck ・Large stroke ・Full surface hardening polishing and direct lubrication of the working end surface ・High...
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Global Parts Co., Ltd.
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■Features ・High rigidity makes it ideal for heavy cutting
3 models listed
Global Parts Co., Ltd.
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■Features - Quick and easy nail replacement - Main body and internal parts fully hardened and polished, directly lubricated ・Pursuing high rigidit...
3 models listed
Global Parts Co., Ltd.
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Last viewed: 16 minutes ago
■Features ・3-jaw wedge hook type power chuck ・Large through hole ・Full surface hardening polishing and direct lubrication of the working end sur...
10 models listed
Global Parts Co., Ltd.
1900+ people viewing
Last viewed: 7 hours ago
■Features ・3-jaw wedge hook type power chuck ・Full surface hardening polishing and direct lubrication of the working end surface ・High rigidity...
9 models listed
Global Parts Co., Ltd.
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Last viewed: 18 minutes ago
■Features ・Pin arbor retractable three-jaw ・High gripping force, high precision ・Ideal for heavy cutting and high precision pipe machining - Axi...
5 models listed
Nihon Pisco Co., Ltd.
2280+ people viewing
Last viewed: 2 hours ago
It is ideal for holding a cylindrical work and can be installed in a space -saving body with a compact body. It is a high -sized piston mechanism d...
11 models listed
Global Parts Co., Ltd.
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Last viewed: 1 hour ago
■Features ・3-jaw wedge hook type power chuck ・Large through hole ・Full surface hardening polishing and direct lubrication of the working end sur...
10 models listed
Global Parts Co., Ltd.
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Last viewed: 57 minutes ago
■Features ・Ideal for grasping inner diameter ・Pulls the workpiece in the axial direction at the same time to reduce lifting of the workpiece ・Pu...
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Global Parts Co., Ltd.
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■Features ・2-jaw wedge hook type power chuck ・Large through hole ・Ideal for grasping irregularly shaped workpieces ・Full surface hardening poli...
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Global Parts Co., Ltd.
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■Features ・It is also possible to use the central dustproof cover for polishing as the reference base for the workpiece. ・Compatible with standar...
3 models listed
Naka Seiki Co., Ltd.
230+ people viewing
■Features ・Multiple units can be used side by side in a small space. ・It has a long stroke, so it is versatile. ・Square shape with external dime...
Nakajima Koki Co., Ltd.
580+ people viewing
Last viewed: 1 hour ago
■Installation and use ・Before piping, thoroughly flush the pipes to remove dust, dirt, chips, etc. ・Please use air filtered with a filter of 40u...
10 models listed
Nakajima Koki Co., Ltd.
930+ people viewing
Last viewed: 7 hours ago
■Installation and use ・Install a fall prevention device. ・Do not use pneumatic fingers when external force or impact force is large. - When insta...
10 models listed
Naka Seiki Co., Ltd.
170+ people viewing
■Features ・Since the stroke is long, it is versatile for workpieces with different diameters. - Two jaws suitable for square work. ・Long stroke φ...
Naka Seiki Co., Ltd.
150+ people viewing
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■Features ・Since the stroke is long, it is versatile for workpieces with different diameters. - Lightweight aluminum and high precision iron. ・Lo...
Naka Seiki Co., Ltd.
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■Features - Ideal for square work. -Can be used for transportation, assembly, etc. - Claw strokes are φ2mm and φ5mm. ・Repeatability of steel is 2μ...
Nakajima Koki Co., Ltd.
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■Installation and use ・If the pressure in the pneumatic circuit were to drop, the workpiece would fall due to the reduced gripping force. Install ...
10 models listed
Matsumoto Machine Industry Co., Ltd.
110+ people viewing
■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.
200+ people viewing
Last viewed: 10 hours ago
■Features - Ideal for transporting and assembling long workpieces. ・It is lightweight and compact, so it is easy to install. ・Cross bar that allo...
Naka Seiki Co., Ltd.
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■Features - Can be used for a variety of purposes such as turning, run-out inspection, and attachment to indexing devices. -You can choose the mate...
NK Works Co., Ltd.
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■Product overview INOFlex® is a flexible chuck suitable for almost all clamping tasks on modern machine tools. Regardless of workpiece geometry, wo...
9 models listed
