A three jaw power chuck and four jaw power chuck are two types of chucks used in lathe machines.

The main differences between them are:
1. Number of jaws: A three-jaw chuck has three jaws that move in unison, while a 4-jaw chuck has four independent jaws that can be adjusted individually.

2. Gripping force: A four-jaw chuck provides more gripping force and can hold irregularly shaped or non-circular workpieces more securely than a 3-jaw chuck, which can reduce the risk of slippage or distortion.

3. Centering accuracy: A 3 jaw lathe chuck is easier to center and align with the lathe spindle because all three jaws move in unison. A 4-jaw chuck requires more skill and experience to center and align because each jaw needs to be adjusted individually.

4. Versatility: A 4 jaw lathe chuck is more versatile than a 3-jaw chuck because it can hold a wider range of workpiece sizes and shapes, including irregularly shaped or non-cylindrical objects.

In summary, a 3-jaw chuck is simpler to use and center but is limited in its gripping force and versatility. A 4-jaw chuck provides more gripping force and versatility but requires more skill to use and center. If you are interested in our 3 jaw chucks and 4 jaw chucks products or solutions, Welcome to contact Autogrip right now.

A 2-jaw chuck and a 3-jaw chuck are both types of work holding devices that are used to hold and rotate a workpiece on a lathe or other machining tool. The main difference between the two is the number of jaws that are used to grip the workpiece.

A 2-jaw power chuck has two jaws that are adjusted simultaneously to grip the workpiece. This type of chuck is ideal for holding irregularly shaped or non-symmetrical workpieces, including round, square, and irregularly shaped parts, as the jaws can be adjusted independently to achieve an even grip. It is ideal for use on smaller lathes or in tight spaces.

A 3-jaw power chuck has three jaws that move simultaneously to grip the workpiece. This type of chuck is simpler to use and faster to set up than a two-jaw chuck, making it ideal for holding round or symmetrical workpieces. However, it may not be as versatile as a two-jaw chuck when it comes to holding irregularly shaped workpieces. It can hold a wide range of workpiece sizes. The chuck can be adjusted quickly to fit different sizes of workpieces, which saves time and increases efficiency. Additionally, it is a versatile tool that can be used for a variety of machining operations, such as drilling, turning, and milling.

Overall, the choice between a two jaw lathe chuck and a three jaw lahte chuck depends on the specific requirements of the machining operation and the type of workpiece being machined. If you have any necessary about 2 jaw chucks or 3 jaw chucks, welcome to contact Autogrip right now.

A Lathe chuck is one of the most important devices in the lathe machine. It is basically a part of a lathe machine that is installed on top of a lathe and can be actuated manually or under power. The main use of a lathe machine chuck is to hold the material block it operates on. This keeps the piece to be machined when it spins.

Generally, Lathe chucks are common in Manual and power types:

Manual lathe chucks manually open or close jaws with a screw or pinion.

Power lathe chucks use hydraulics, pneumatic, or electricity to close the jaws. They have high gripping accuracy and are designed for mass production.

Would you like to know more Lathe machine chuck products? AUTOGRIP® will give you the best solution for your business. Please contact us for help!

Selecting the correct tool for the task is always the best practice, here we are introducing manual and power chucks features.

The manual chuck is a great choice for lathing or milling most workpieces, as it is arguably the most versatile style of chuck which used for workholding is the adjustability of clamping pressure. It is better suited to low-volume, higher-precision applications. The operator can adjust for more on a manual chuck, or even change jaws as they need to for the job at hand.

The primary advantage of a power chuck is increased efficiency, along with more consistent pressure on the workpiece. Compression on the workpiece is constant, as air or hydraulic pressure hold the workpiece instead of manually clamping it in place like using a vise on a workbench. The operator can clamp and release workpieces much faster, which makes high-volume production much easier.

Would you like to know more manual chucks and power chucks products? AUTOGRIP will always give you the best support in your new developing project. Please contact us for help!

Source Reference: ATS Systems

AUTOGRIP, a specialist solution provider of Power Chucks and Rotary Cylinders, wins Taiwan Excellence Award 2020

AUTOGRIP provides the experienced solution for special purpose power chucks, rotary cylinders and clamping series. This year, Autogrip is welcoming the 30th anniversary and highlights the two main characteristics of “Great Rigidity and Infallible Precision,” in order for Autogrip Machinery Co. Ltd. to further flourish globally and share in a bright future with our customers.

The awarded 3W series are special purpose power chucks with innovative ball lock design for gripping tapered casting parts, with self-centering function. 3W can grip the work piece in radial direction and then pull down simultaneously. Gripping on forging or casting part with taper up to 20°, Jaw equalizing: 5° Max., anti-dust, seal proof and easy maintenance.

• 3W is a power chuck with self-centering function


• Grip the work piece in radial direction and then pull down simultaneously.


• Gripping on forging or casting part with taper up to 20°


• Jaw equalizing: 5°Max.


• Anti-dust and Seal proof for cutting fluid, easy to maintain.


• The 3W power chuck offers an optional on/off feature which allows an easy change from centralizing to compensating (3W-C). 3W-C can offered centralizing and compensating function.

Our product lines include a complete set of 79-inch and under series, and related products such as Power Chucks, Special Purpose Power Chucks, Collet Chucks, Stationary Chucks, Synchronous Clamps, Facing Heads, Rotary Cylinders, Rotary Valve/ Rotary Joint and Accessories.

AUTOGRIP MACHINERY will exhibit at Aerospace Industry - AIM and Productivity 4.0 Industrial Technology Matching Exhibition from 16 to 20 June, 2016.

Venue: The Greater Taichung International Expo Center
No.161, Gaotie 5th Rd., Wuri Dist., Taichung City 414, Taiwan
Booth No.： 0034, 0035

TIMTOS is Asia's top machine tool event that connects the makers, products and buyers for massive business opportunities.

As a specialist manufacturer of Power Chucks and Rotary Cylinders, Autogrip Machinery works hard to satisfy our customers. We are presently developing an Extra Large Chuck series slated for market in the near future. Please contact with us for more information.

Date: 5-10 March 2013
Venue: Taipei World Trade Center (TWTC)
Booth No.：Hall 1, C0216