Tormach PCNC 440 - Page 6

Chapter 1
6
UM10372_PCNC440_Manual_0221A
PREFACE
Intended Use Statement
The PCNC 440 is intended for use as a general purpose CNC milling machine. The intended use includes
cung convenonal (non-abrasive) materials such as unhardened mild or alloy steels, aluminum,
plascs, wood, and similar materials (or any other material that can be cut with a rotang cuer).
Outside Scope of Intended Use
Applicaons for the equipment or modicaons of the equipment outside of the Intended Use
Statement are supported through consulng engineering and excluded from Tormach’s no-cost
technical support.
All of the technical informaon and insight required to support variaons from the intended use
cannot possibly be foreseen. If the extensive documentaon provided does not supply all the
informaon you need, we can provide addional informaon and engineering support required
for your project on a consulng engineering basis. If you have your quesons well organized, we
can normally provide all the informaon you need in short order. Consulng engineering is done by
electrical and mechanical engineers and billed at current hourly rates.
All warranes for Tormach equipment are voided through modicaon to the equipment or use
outside of the intended use. Individuals or companies involved with modifying the equipment or
applying the products assume all consequent liability.
Performance Expectations and Cutting Ability
The following table summarizes the cung performance envelope of the PCNC 440 mill:
Spindle Speed Range 300-10,000 RPM
Spindle Power Rang 3/4 hp (600 W)
Feed Rate Range
0-135 IPM (X, Y)
0-110 IPM (Z)
The PCNC 440 is capable of cung any material that can be cut with a rotang cuer at or near
its recommended feeds and speeds. As with any machine tool, care should be exercised so that
programmed cuts do not exceed the maximum available spindle horsepower. Small diameter cuers
may perform beer with use of a companion spindle or RPM mulplier.
Resolution, Accuracy, and Repeatability
The following table summarizes resoluon, accuracy, and repeatability of the PCNC 440 as delivered.
Resoluon of Moon (minimum discrete posional move) 0.0001”
Posional Accuracy
1
≤ 0.0016” per 10”
1
Includes addional contribung factors such compressibility of bearings, ball screw windup, fricon, etc.