Mazak VTC-160A, Maintenance Manual, Page: 11 / 96

INSTALLATION PRECAUTIONS
The following subjects outline the items that
directly affect the machine installation and start-
up. To ensure an efficient and timely installation,
please follow these recommendations before
calling to schedule a service engineer.
• ENVIRONMENTAL REQUIREMENTS
Avoid the following places for installing the
machine:
1) Avoid exposure to direct sunlight and/or near a
heat source, etc. Ambient temperature during
operation: 0° thru 45°C (32°F to 113°F).
2) Avoid areas where the humidity fluctuates
greatly and/or if high humidity is present;
normally 75% and below in relative humidity. A
higher humidity deteriorates insulation and
might accelerate the deterioration of parts.
3) Avoid areas that are especially dusty and/or
where acid fumes, corrosive gases and salt are
present.
4) Avoid areas of high vibration.
5) Avoid soft or weak ground (minimum load
bearing capacity of 1025 lbs./ft
2
)
• FOUNDATION REQUIREMENTS
For high machining accuracy, the foundation
must be firm and rigid. This is typically
accomplished by securely fastening the
machine to the foundation with anchor bolts. In
addition, the depth of concrete should be as
deep as possible (minimum 6 - 8 inches). Note
the following:
1) There can be no cracks in the foundation
concrete or surrounding area.
2) Vibration proofing material (such as asphalt)
should be put all around the concrete pad.
3) Form a “cone” in the foundation for J-bolt
anchors, or use expansion anchors.
4) With the foundation anchor bolt holes open
pour the primary concrete at a minimum
thickness of 6 - 8 inches. Typically, the
concrete must have a minimum compression
rating of 2500 lbs. @ 250 lbs. compression
and strengthened with reinforcing rods. When
the concrete has cured, rough level the
machine, and install the J-bolts, leveling blocks,
etc., and pour grout into foundation bolt holes.
5) Mix an anti-shrinkage agent such as Denka
CSA with concrete, or use Embeco grout to fill
the foundation bolt holes.
6) In pouring grout, fasten the leveling block
base plates with the collar retaining screws
to prevent the base plates from dropping.
When the grout has completely hardened,
level the machine properly, and tighten M24
nuts to secure the machine to the
foundation.
Note:
The machine must be anchored to the
foundation with J-bolts, expansion bolts or
other suitable method.
The machine accuracy and alignment
specifications quoted by Mazak can usually
be obtained when the minimum foundation
requirements are met. However, production
of close tolerance parts requires the use of an
appropriate certified foundation. Foundations
that do not meet certified specifications may
require more frequent machine re-leveling and
re-alignment, which can not be provided
under terms of warranty.
If any of these conditions cannot be met,
contact the nearest Mazak service office
immediately.
S-5
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