KF5700B/6700B/7700B Excellent Heavy Duty Cutting Capability & Productivity Vertical Machining Center
The Vertical Machining Center KF-B Series, designed by Hyundai WIA with years of expertise and the latest technology, maximizes productivity while maintaining rigidity and accuracy.
The Fastest, the Most Versatile High end Linear Machining Center
- Box guideways for exceptional feeding during heavy duty cutting
- High-powered, high-torque main spindle for superb heavy duty cutting
- Main spindle with gear drive for high-power and high torque (BT50 Option)
- Latest Servo ATC for highly efficient tool exchanging
Basic Features
Excellent Heavy Duty Cutting Capability & Productivity Vertical Machining Center
KF5700B Travel
Travel (X/Y/Z) |
1,100/570/520 mm (43.3″/22.4″/20.5″) |
KF6700B Travel
Travel (X/Y/Z) |
1,300/670/635 mm (51.1″/26.4″/25″) |
KF7700B Travel
Travel (X/Y/Z) |
1,500/760/635 mm (59″/30″/25″) |
KF5700/6700/7700B Traverse Rate
Rapid Traverse Rate (X/Y/Z) |
30/30/24 m/min (1,181/1,181/945 ipm) |
1Direct Driven Spindle
he motors and spindles are directly connected, thus shortening the spindle's acc./deceleration time. To achieve higher speed of the spindle, the design involves super-precision, hi-speed angular ball bearings, enabling an increased machining capability.
Gear Driven Spindle OPTION
he KF-B Series can be fitted with a gear-type spindle shift as an optional feature so ensure a shift to stable rotation at high speed from strong torque at low speed, thus offering a wider range of machining.
Direct Driven Spindle (BT40, BT50)
8,000 / 12,000 rpm
Gear Driven Spindle (BT50)
8,000 rpm
※Thermal Displacement Compensation as Standard
< Gear Driven >
< Direct Driven >
2Table
Compared to competitive machines, the KF-B series has a large working capacity to make setup easier and provide convenience to the operator.
Model |
KF5700B |
KF6700B |
KF7700B |
Size |
1,300×570 mm (51.2″×22.4″) |
1,500×670 mm (59″×26.4″) |
1,650×760 mm (65″x30″) |
Load Capacity |
1,000 kg (2,205 lb) |
1,300 kg (2,866 lb) |
1,500 kg (3,307 lb) |
3ATC & Magazine
The tool magazine holds 30 tools as standard and 40 tools(BT50 : Std. 24EA, Opt. 30EA) as an option. Due to the wider selection of tools and the random tool selection method, tool change time has improved.
Tool Change Time (C-C) : 3.5 sec
4All Axis Large Boxgide way
Capability of heavy-duty cutting and vibration absorption is enhanced drastically due to expanded box guide.
Division |
X Axis Width |
Y Axis Width |
Z Axis Width |
KF6700B |
100mm (3.9″) |
160mm (6.3″) |
125mm (4.9″) |
Existing Machine |
100mm (3.9″) |
100mm (3.9″) |
100mm (3.9″) |
Slideway
Heavy Duty Cutting by High-Rigid & Accurate Mechanism
One Piece High Column Structure
Additional 300mm(11.8″) extension can be applied on the KF-B Series as an option.
High-Rigidity Design for Column & Bed
he stable design of column assembly surface on bed top enables securing the fundamental rigidity of the structure.
(Full scrapping of assembly area : 10 fixing bolts)
KF5700B (A~B)
Distance from Table Top to SP. Nose |
150~670 mm (5.9″~26.4″) |
KF5700B/50 (A~B)
Distance from Table Top to SP. Nose |
200~720 mm (7.9″~28.3″) |
KF6700B | KF7700B (A~B)
Distance from Table Top to SP. Nose |
150~785 mm (5.9″~30.9″) |
KF6700B/50 | KF7700B/50 (A~B)
Distance from Table Top to SP. Nose |
200~835 mm (7.9″~32.9″) |
Double anchored ball screw
The pretensioned ball screw minimizes the expansion and contraction according to the heat and further reinforces the rigidity by the double anchor support method. In addition, the coupling of the ballscrews and the highly reliable digital servo motors are connected by metal plate couplings, to reduce coupling breakage and backlash.
3 Row bearing + Oil Lubricated
Rigidity 147% UP
compared to previous model
Powerful Spindle
Long Lasting High Accuracy & Excellent Performance
High-Performance,
Direct Driven Spindle
The directly coupled spindle at a maximum revolution of 12,000rpm, allows high-speed processing. Additionally, the large diameter and the thickness of the spindle add to the stability of the machine.
8,000rpm (BBT40/BBT50)
Spindle Output |
15/11 kW (20.1/14.7 HP) |
Spindle Torque |
286/143 N.m (210.9/105.5 lbf.ft.) |
12,000rpm (BBT40)
Spindle Output |
18.5/11 kW (24.8/14.7 HP) |
Spindle Torque |
118/70 N.m (87/51.6 lbf.ft) |
Spindle Cooling
The spindle cooling system minimizes thermal displacement which can happen during lengthy machining operations, and offers continued accuracy based on the thermal stability.
<External cooling via head frame enhances chilling ability>
Through Spindle Coolant OPTION
Through Spindle Coolant is exceedingly useful when drilling deep holes. It helps increase the lifetime of the tool, while decreasing cycle time.
20 bar / 30 bar / 70 bar
(290 psi / 435 psi / 1,015 psi)
Heavy-Duty Cutting
High-power Gear Driven Spindle
It provides stable machining capability by doubling the heavy cutting capacity with the maximum torque of the same class. It guarantees stable torque at high speed at low speed and stable rotation at high speed to realize wide machining.
8,000rpm (BBT50)
Spindle Output |
18.5/15 kW (24.8/20.1 HP) |
Spindle Torque |
586.3/475.4 N.m (432.2/350.6 lbf.ft) |
Dual Contact Spindle
The Big Plus spindle system provides dual contact between the spindle face and the flange face of the tool holder. This greatly increases tool rigidity, reduces run out and adds significant productivity to machining
applications.