powRgrip® SystemComparative analysis of powRgrip vs Shrink-fit

powRgrip Shrink-fit

Clamping Method

Table top hydraulic press with clamping force up to 9 tons; Manual hydraulic

press with clamping force up to 6 tons

Induction device up to 12kW (older devices with hot air or contact heating

element)

FunctionPress fitting a shallow taper collet into a

toolholder

Heat is used to expand the material allowing the tool to be inserted. Must be

cooled afterwards

Safety

Utilizes an enclosed, guarded area and interlocked doors to keep the operator

safe from injury and pinch points

A super heated, exposed toolholder must be moved with an asbestos glove to a cooling tower, attachment or table top. Strict handling controls are required to

assure isolation of hot holders as serious burns can result

EnduranceOver 20,000 cycles on all diameters (thin-

wall collets 500 cycles)50-5000 cycles, depending upon the tool

diameter and operation rules

Clamping range 0.2mm – 25.4mm 3.0mm – 50.0mm

Applications

Drilling Reaming Milling

Tapping

DrillingReaming Milling

Tool presettingEasy and cheap length presetting device,

accurate within 0.01mmExpensive presetting device; experienced

user necessary

Balancing possibilitiesEasy balancing due to Hi-Q balancing

ringsBalancing only possible by material

removal

Flexibility

All-purpose and flexible: each holder can take specified collets with different diameters – one collet series can cover

up to 15 different shank diametersFor every shank diameter a seperate

holder is necessary

Coolant supply

For use with internal and peripheral cooling. MQL and CO2 are possible

using specialized PG collets in the same toolholder

For us with internal cooling as standard; specialized holder required for peripheral

cooling

Tool shafts Clamping of all tool shafts Limited possibilities

Carbide Possible (h6 tolerance) Possible (h6 tolerance)

HSS Possible (h6 tolerance) Challenging; case-by-case

Ceramic Possible (h6 tolerance) Not possible

Runout Within 0.003mm; 20,000 cyclesWithin 0.003mm; change in TIR possible

after as few as 5 heat cycles

Transferable torque 1,100 Nm on Ø 25mm 600 Nm on Ø 25mm

Vibration damping3x the damping than Shrink-fit due to

interferance fit between materialsTransfering of vibrations direct to spindle

and workpiece due to direct clamping

Time of tool change Within 10 seconds Up to 3 minutes (heat up and cool down)

REGO-FIX Tool Corp.4420 Anson Blvd / Whitestown / IN 46075 / USA Toll Free 800-999-7346 / Phone 317-870-5959info@rego-fix.com / www.rego-fix.com