1. Clamping force
measuring instrument
Accurate measuring of the clamping force:
– SENSO 3000 for hydraulic chucks
– for HSK clamping system

2. Pre-requisite for optimal machining results is not only the corre
is a perfect connection of each component with the optimal cla
instruments for accurately measuring the clamping fo
SENSO 3000
The hydraulic clamping technology is a well-known, proven and reliable method for the clamping of tools. Thanks to its
completely closed design the system is sealed and impervious, requires extremely low maintenance and guarantees
longevity. Following many years of general use, however, thermal and mechanical influences can lead to a reduction in
clamping force. The result can be a poor tool life and a diminished surface quality including expensive tool breakages
during machining operations.
Determining the loss of clamping force was until now extremely costly and inaccurate. It involved either determining the
number of clamping screw rotations or the torque with the assistance of a proofing bar and a torque key or the expansion
rate applying an accurate internal measuring instrument.
The new Guhring SENSO 3000 measuring instrument offers a precise, quick and simple as well as consistent method of
measuring the clamping force. An added advantage is the mobility of the system, i.e. for measuring within machines and
fixtures.
SENSO 3000 determines the clamping force of the hydraulic chuck via a pressure sensitive plug gauge. The entire length
of the plug gauge is clamped in the hydraulic chuck so that when tightening the clamping screw the clamping pressure
of the chuck is optimally applied. The clamping force measuring instrument displays the clamping force as an absolute
measurement value on the one hand and as a percentage clamping force in relation to a reference value that can be set
individually on the other. This way, SENSO 3000 can be adapted to customer specific application conditions and require-
ments.
The clamping force measuring instrument is supplied with a plug gauge for the respective clamping diameter as well as a
carbide proofing bar for calibration purposes and a CR 2430 type battery – all in a sturdy and handy case.
Clamping diameter Guhring no. 4038
mm
Code no. Cost per instrument
6.0 6,000
8.0 8,000
10.0 10,000
12.0 12,000 Prices
14.0 14,000 available
16.0 16,000 upon
18.0 18,000 request
20.0 20,000
25.0 25,000
32.0 32,000
GUHRING Clamping force measuring instrument

3. ect choice of tool, hydraulic chuck and holder. Equally important
amping force. Therefore, the Guhring program now includes two
orce of HSK clamping systems and of hydraulic chucks.
Clamping force measuring instrument, Guhring no. 4974
The accuracy of a HSK connection not only depends on the geometry of the connection, also the drawing force of the
HSK clamping systems considerably determines a powerful and accurate connection. In order to ensure operational relia-
bility it is advised to inspect the clamping force of the HSK interface on a regular basis.
For this, Guhring provides a fully mechanized clamping force measuring instrument. Its function principle is based on a
linear length deformation of components that is proportional to the force. A force is allocated to the length deformation
and displayed by an analogue dial gauge.
HSK measuring bar
HSK-Messschaft The most important characteristics of the clamping force measuring instru-
Dial gauge
Messuhr ment for the clamping system are:
Drawbar
Zugstange
- few components, therefore cost-efficient
- robust design
- batteries or mains connection not required, therefore mobile and
practical
- patented function principle, transferable to other spindles
The clamping force measuring instrument, Guhring no. 4974, is calibrated
and supplied in a wooden case including inspection protocol and measuring
instructions.
for Taper Overall length Guhring no. 4974
HSK-A/C mm mm
Code no. Cost per instrument
25 19 181 19,000
32 24 186 24,000 Prices
40 30 190 30,000 available
50 38 192 38,000 upon
63 48 199 48,000 request
80 60 210 60,000
100 75 220 75,000
• calibration on request.
GUHRING clamping force measuring instrument

4. Guhring oHG
P Box 100247 · D-72423 Albstadt
.O.
Herderstr. 50-54 · D-72458 Albstadt
Telephone: +49 74 31 17-0
Fax: +49 74 31 17- 2 79
www.guehring.de
Our product range:
1. Drilling Tools 6. Cutting Tools
in High Speed Steel and Carbide in ultra-hard materials
Twist drills Cermet and ceramic tools
Ratio drills PCD- and PCB-tipped tools
Micro-precision drills
Oil feed drills 7. Coated Tools
Subland drills A-tools, TiAlN-coated
Centre drills C-tools, TiCN-coated
Core drills F-tools, FIRE-coated(allround)
Gun drills S-tools, TiN-coated(allround)
M-tools, MolyGlide-coated
2. Thread Cutting Tools
in High Speed Steel and Carbide
8. Modular Tooling Systems
Hand taps Tooling system GM 300
Machine taps and fluteless taps for rotary and stationary tools, offering a large
Oil feed taps and oil feed fluteless taps combination of tool holding possibilities
Thread milling cutters Flexible tooling system GE 100
Dies a tooling system for the combined machining
operations facing, chamfering, boring, centering
3. Milling Cutters and so on
in High Speed Steel and Carbide
Cartridge tooling system DP 200
Ratio end mills with indexable inserts for roughing and finishing
Long hole milling cutters operations in complex workpieces
Slot drills
End mills 9. Special Tools
Radius profile cutters to sketch or drawing, the more complex, the better
Hard profile cutters
Diesinking cutters
10. Carbide
4. Reaming Tools for precision cutting tools, for metal forming
in High Speed Steel and Carbide and punching tools
Hand reamers 11. Tungsten Carbide Forming Tools
Machine reamers for the production of nuts and bolts:
Machine taper reamers
Cold forming tools
Quick spiral and expanding machine reamers
Heading die inserts, punching pins
Machine bottoming reamers, shell reamers
12. HSC Motor Spindles,
5. Countersinking Tools Hydro expansion chucks,
in High Speed Steel and Carbide
115 951/0539-IV-15
Shrink fit chucks and systems
Countersinks, counterbores and spot facers
Short counterbore system 13. Tool Restoration Service
Back spot facers Re-grinding, re-coating, tool management
No liability can be accepted for printing errors or technical changes of any kind.
Our Conditions of Sale and Terms of Payment apply. Available on request.