Hyper DuAl SP/GP HobHyper DuAl SP Hob● Designed for machining with ultra high efficiency
and for hard-to-cut materials● The tougher the conditions, the better the performance
(Cutting speed 180 to 300m/min)
Hyper DuAl GP Hob● Suitable for both dry and wet hobbing● Supports a wide range of machining environments and
methods● Exhibits the best performance in conventional cutting range
(Cutting speed 80 to 180m/min)
● Specifications for re-grinding/re-coating
Hyper DuAl SP HobProduct Description
Hyper DuAl SP HobV 300m/min hobbing
Select coating according to application
Wet hobbingDry hobbing
Standard efficiency High efficiency Hyper efficiency
For re-grinding/re-coating
Hyper DuAl SP
Hyper DuAl GP
For re-grinding DuAl EX
Hyper DuAl SP(For re-coating)
Feed(
mm
/rev)➡
50 100 200 300
Hyper efficiency
High efficiencyStandard
efficiencyHyper DuAl GP(For re-coating)DuAl EX
(For re-grinding)
Speed (m/min)
Comparison of wear in dry hobbing at 300m/min speed
Test conditions•Workpiece specifications: m2.5 × PA16°× NT54, SCM420• Hob specifications: O.D. 95mm × NT12 × 3TH, material FMH• Cutting conditions: V = 300m/min, f = 3.0 mm/rev, climb cutting, dry hobbing, no shift
DuAl EX Conventional Hyper DuAl hob Hyper DuAl SP
Wear condition
Cutting length 25m 43m 130m
Tool life ratio 1 1.7 5.2
Hyper DuAl SP
Comparison of wear in material with hardness 250HB
•Workpiece specifications: m2 × PA15°× NT79, S45C (250HB)• Hob specifications: O.D. 70 mm × NT12 × 3TH• Cutting conditions: V = 110 / 160 m/min, f = 3.0 / 2.6 mm/rev, climb cutting, dry hobbing, No of machined parts: 800pcs
Competitor product (coated for dry hobbing) Hyper DuAl SP
Wear condition
Max. wear 0.36mm 0.06mm
Hyper DuAl SP
Test conditions
Comparison of wear after cutting length 350mHyper DuAl GP
Test conditions•Workpiece specifications: m2.9 × PA15°× NT47, SCM420H • Hob specifications: O.D. 105 mm × NT12 × 3TH, material FMH • Cutting conditions: V = 160m/min , f = 2.4mm/rev, climb cutting, dry hobbing, no shift
Conventional Hyper DuAl hob Hyper DuAl GP
-19 tooth
-13 tooth
0
0.05
0.1
0.15
0.2
0.25
0 100 200 300 400 500Cutting length (m)
Conventional Hyper DuAl hob
1.5 times longer tool life
Hyper Dual GP
Wea
r (m
m)