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SCHUNK - Gripping and Clamping Products
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Hard Stepped Block Jaws
Description
SCHUNK stepped block jaws allow for an initial set-up with reduced clamp marks. The diamond serration provides a gentle clamping solution for your raw materials.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Universal application possibilities
suitable for I.D., O.D., and bar clamping
Gentle clamping
due to diamond serration in which the clamping teeth penetrate only slightly into the workpiece
Product details Homepage Product request
Base Jaws
Base Jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Base Jaws
Description
At SCHUNK, you will find the largest offering of base jaws for all lathe chuck types. In addition to the jaw interface with tongue and groove, SCHUNK also offers hardened, precision ground base jaws for the use of fine-serrated top jaws. If seamless clamping is not possible with your jaw quick-change chuck equipped with claw jaws, such clamping gaps can be covered, for example, with base jaws featuring ½-tooth offset.

Field of application
For lathe chucks with jaw quick-change

Advantages – Your benefits
Quick and easy handling
through high dimensional and fitting accuracy
Rapid set-up times
by replacement of a clamping unit consisting of base and top jaws in the lathe chuck
Ground tongue and groove and ground locating surface
ensures a high accuracy of fit and repeat accuracy
Ground serration
ensures high precision and surface quality of the base jaws, 30 - 40 % less wear and therefore increased useful life
Product details Homepage Product request
Claw jaws
Claw jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Claw jaws
Description
The SCHUNK claw jaw product range stands for maximum flexibility from the standard modular system - at a reasonable price and with variable applications. Whereas other suppliers can only achieve large clamping ranges by using costly special solutions or with several chuck jaws, SCHUNK offers a maximum clamping range with just one claw jaw.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Optimized clamping contour
for maximum clamping force of the whole clamping range
Transmission of high RPMs
for economic cutting at high cutting speeds
High speeds at a low centrifugal force
resulting in higher clamping forces due to a low weight
Highly versatile clamping ranges
leads to significantly lower investment costs
Form-fit clamping of the workpiece
at a high machining performance and optimum clamping force
Additional third row of teeth (from chuck diameter 200 mm)
allows for higher cutting data (feed rate, rate of cut, etc.) during "on-the-fly machining"
Highest flexibility through standardization
Combination options for base, intermediate and top jaws expand the field of application of the standard component range by up to 50%.
Extensive product range
for I.D., O.D. and bar clamping
Case-hardened
less wear at the teeth
Product details Homepage Product request
Hard Stepped Top Jaws
Hard Stepped Top Jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Hard Stepped Top Jaws
Description
SCHUNK stepped top jaws allow for a first set-up with reduced clamp marks. The diamond serration provides a gentle clamping solution for your raw materials.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Universal application possibilities
suitable for I.D., O.D., and bar clamping
Gentle clamping
due to diamond serration in which the clamping teeth penetrate only slightly into the workpiece
Product details Homepage Product request
Jaw blanks
Jaw blanks
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Jaw blanks
Description

Soft jaw blanks for universal application are manufactured by SCHUNK on customer request according to individual dimensions. You can order jaw blanks drilled or undrilled; or in order to meet highest requirements in terms of precision and run-out accuracy in a version with continuously ground groove and serration.


Field of application

For all common manufacturers and types of lathe chucks


Advantages – Your benefits

Above average service life
due to high quality standards in materials and processing
Largest product range
SCHUNK jaw blanks are available in many dimensions and shapes
Individually modifiable
Weight reduction and/or slope of the clamping face (for small workpiece diameters) according to your specifications. Made of blanks or standard jaws, therefore cost-effective and available at short notice. Please send your inquiry to cms@de.schunk.com.
High availability
by 24 hour delivery service
Product details Homepage Product request
Jaw quick-change
Jaw quick-change
Chuck Jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Jaw quick-change
Description
SCHUNK quick-change jaws convince with their easy handling and reduce set-up times allowing jaw change within seconds. An extremely large clamping range can be realized by using interchangeable inserts, without having to offset the support jaw.

Field of application
Jaw quick-change system for serrated lathe chucks

Advantages – Your benefits
More flexible
using soft clamping inserts, which can be optimally adapted to the workpiece contours
High service life and reusability
by using high quality materials
Product details Homepage Product request
PRONTO
PRONTO
Jaw quick-change system
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
PRONTO
Description
The PRONTO jaw quick-change system is the set-up time turbo for all conventional lathe chucks. It reduces the set-up time for a full jaw set by up to 95% compared to conventional solutions. The clamping diameter can be expanded in a matter of seconds. A variety of interchangeable inserts allow reliable clamping when machining parts at all stages of the finishing process.

Field of application
For lathe chucks and stationary clamping solutions

Advantages – Your benefits
More universal
Can be retrofitted for all standard chucks
More flexible
700% expansion of clamping range without displacement of the supporting jaws
More powerful
Unsurpassed power transmission and high torque transfer in clamping of rough parts
More reliable
6-sided form-fit clamping for process-reliable workpiece clamping
More precise
Excellent repeat accuracy of 0.02 mm
More efficient
95% lower set-up costs than with conventional solutions
Faster
Change-over time of less than 5 seconds per jaw
More convenient
User-friendly, quick handling even with overhead lathe chucks as well as set-up without having to readjust the jaw
Simpler
Ask for our PRONTO configurator

Options and special information
Extremely flexible unfinished and finished part clamping on one supporting jaw
As required by the application, different supporting jaw variants are available for small, medium, and large clamping ranges. As top jaws, the range offers ten hard claw inserts for various diameters and clamping ranges, as well soft, interchangeable inserts for machining finished parts.
Product details Homepage Product request
Serrated bars
Serrated bars
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Serrated bars
Description
SCHUNK serrated bars for your customized soft top jaws. The serrated blanks are available in steel and aluminum. They facilitate maximum flexibility through needs-based cutting.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Universal application possibilities
Every customized length can be achieved quickly and cheaply
Ground serration
Ground serration is more precise and offers better fitting accuracy than milled variants. This protects the base jaws and makes them more durable.
Product details Homepage Product request
Soft Full Grip Jaws
Soft Full Grip Jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Soft Full Grip Jaws
Description
SCHUNK segment jaws manufactured from steel or aluminum for delicate workpieces. The large contact area ensures that clamping forces are evenly distributed over the workpiece area, thereby reducing deformation of the workpiece.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Reduced deformation of your workpiece
due to force transmission over a large clamping surface
Reduced centrifugal forces
in the weight-reduced aluminum version
Product details Homepage Product request
Soft Monoblock Jaws
Soft Monoblock Jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Soft Monoblock Jaws
Description
SCHUNK soft block jaws for optimal precision in finished parts handling By saving one additional interface, the monoblock jaw achieves a higher accuracy compared to the combination of base and top jaws.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Longer life span of the lathe chuck
due to induction-hardened serration and guidances
Huge variety for your applications
available in many height and length variants for your individual clamping requirements
Product details Homepage Product request
Soft Top Jaws
Soft Top Jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Soft Top Jaws
Description
Soft top jaws are universally applicable. They can be flexibly turned to the desired clamping diameter. Take advantage of our wide variety of different dimensions for your individual clamping solution.

Field of application
For all common manufacturers and types of lathe chucks

Advantages – Your benefits
Ground serration
Ground serration is more precise and offers better fitting accuracy than milled variants. This protects the base jaws and makes them more durable.
Finely milled tongue and groove
The bearing surfaces are even in height for soft top jaws, in a single set-up, finely milled within 0.02 mm. The precise version of the interface ensures high repeat accuracy and above-average service life.
Individually modifiable
Weight reduction and/or slope of the clamping face (for small workpiece diameters) according to your specifications. Made of blanks or standard jaws, therefore cost-effective and available at short notice. Please send your inquiry to cms@de.schunk.com.
Product details Homepage Product request
Special base jaws
Special base jaws
Chuck jaws
SCHUNK GmbH & Co. KG Spann- und Greiftechnik
Stops for clamping
Special base jaws
Description
At SCHUNK, you will find the largest offering of base jaws for all lathe chuck types. In addition to the jaw interface with tongue and groove, SCHUNK also offers hardened, precision ground base jaws for the use of fine-serrated top jaws. If seamless clamping is not possible with your jaw quick-change chuck equipped with claw jaws, such clamping gaps can be covered, for example, with base jaws featuring ½-tooth offset.

Field of application
For lathe chucks with jaw quick-change

Advantages – Your benefits
Above average service life
due to high quality materials and sustainable production methods
Quick and easy handling
through high dimensional and fitting accuracy
Rapid set-up times
by replacement of a clamping unit consisting of base and top jaws in the lathe chuck
Ground tongue and groove and ground locating surface
ensures a high accuracy of fit and repeat accuracy
Ground serration
ensures high precision and surface quality of the base jaws, 30 - 40 % less wear and therefore increased useful life
Product details Homepage Product request