The arm is of
high strength annealed cast iron with a substantial cross ribbed
box design. The bearing way for head travel is protected by a
replaceable wear strip. The arm can turn 360 degrees around the
All gearing in head is continuous and abundantly lubricated by
a reversible gear pump. The reduction gear driving the arm raising
screw runs in an oil bath.
Wiftis-Bergo provides a superior design in a double wall column.
White the internal column is rigidly fixed to the base the external
column rotates on large roller bearings and provides maximum
support for the arm. The new locking design provides superior
repeat clamping accuracy.
Arm raises and lowers without disturbing alignment, and when
electric switch is turned off, arm automatically locks hydraulically.
The coolant tank and electric pump are mounted in the base at
the foot of the column. The base is built in the form of a closed
box and reinforced by numerous ribs.
ELECTRIC CONTROL PANEL
A. Conveniently located four position switch. Arm raise and lower
control. When switch is returned to central position, arm is
hydraulically locked automatically. Also serves as spindle direction
switch, clockwise or counterclockwise rotation.
B. Power feed engage-disengage lever.
C. Coolant pump switch.
D. Electromagnetic spindle brake on-off switch.
E. Emergency stop button.
F. Power on switch with magnetic starter and - no volt protection.
A. Position one-slow range; position two-medium range; position
B. Clutch and spindle motor control lever. Five positions: neutral,
slow, and fast motor speed reverse and slow and fastmotor speed
SPINDLE SPEED AND FEED
All gears and shafts are nickel-chrome steel, hardened and ground.
All gear shafts are mounted in ball or taper roller bearings.
SPINDLE AND QUILL
Spindle and quill are nickel chrome-molybdenum steel, hardened
and ground. Bottom of spindle is mounted in class 5 double row
roller bearing and thrust bearing and protected by grease seal.
Spindle bearings are adjustable by locknut at top of spindle.
Spindle and quill assembly are moved by counter-weight providing
uniform smoothness for entire stroke.
Arm raising safety device prevents the arm from falling in event
of excessive wear of arm raising mechanism.
FEED OVERLOAD PROTECTOR
Bronze feed worm gear and power feed safety clutch that provides
protection against vital parts and gears in event of feed overload.
DOUBLE DISC FRICTION CLUTCH
Ideal for production tapping. Permits instant mechanical reverse.
Slip point of clutch is adjustable providing sensitivity and
safety to your difficult tapping problems.
Hydraulic piston for locking head. Hydraulic clamping of head
and column with oil powered pistons, activated by push buttons
on face of head.
When lever is in position (A) you may obtain clamping-unclamping
of both arm and head. When lever is in position (B) and arm is
locked you may obtain clamping-unclamping of the head only. When
lever is in position (C) and head is locked, you may obtain clamping-unclamping
of the arm only. System allows for raising or lowering of arm
without altering spindle alignment.