Manual, Compliant Reciprocating Tool, CRT Series
Document #9610-50-1028-04
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 USA • Tel: +1.919.772.0115 • Fax: +1.919.772.8259 • www.ati‑ia.com
13
3.7 Pneumatics
Connect the CRT as shown in
CAUTION:
Pneumatic components used for the drive circuit must be capable of
meeting the air consumption requirements (see
). Poor
performance will result if the correct components are not used.
Conventional, customer‑supplied, pneumatic components are used to control the air supply to the CRT.
To utilize full power from the pneumatic drive, ATI recommends that the user install a high‑flow pneumatic
pressure regulator (ATI Part #9150‑FRL‑4, or equivalent) and a high‑flow valve to properly supply a stable
air supply of 6.2 bar (90 psi) to the drive. See
for the maximum flow requirements.
Lubrication is required for the motor. The air supply should be dry and filtered, using a coalescing filter with
elements rated for 30 micron or better.
A second self‑relieving regulator (ATI Part # 9150‑P16‑B‑G, or equivalent) and valve supply the compliance
(centering) mechanism. The compliance air pressure corresponds radially applied force on the file. Adjust
the compliance air pressure and robot traverse speed to achieve the desired finish. The compliance air supply
must be dry. Because very little airflow is required, a significantly smaller valve can be used (consult the
valve and regulator manufacturer’s literature when selecting these components).
If the work piece can be filed with equal force, a conventional manual pressure regulator can be used for
the compliance air supply. If the burrs vary from place to place on the work piece, and this variation is
repeatable for all work pieces of the same type, it may be necessary to adjust the force using an analog
pressure regulator that is controlled from the robot. An analog output port in the robot or logic controller
will be needed.
All solenoid valves are actuated from the robot or program logic controller by means of a
digital output signal.
WARNING:
All pneumatic fittings and tubing must be capable of withstanding the
repetitive motions of the application without failing. The routing of pneumatic lines must
minimize the possibility of over stressing, pullout, or kinking the lines. Failure to do
so can cause some critical pneumatic lines not to function properly and may result in
damage to the equipment.
Table 3.1—Pneumatic Connections
Connection Function
Connection Type
Pressure Requirement
Pneumatic Drive Inlet
3/8" (10 mm) push‑to‑connect
6.2 bar
(90 psi)
Compliance (Radial) Force Inlet
5/32” (4 mm) quick‑connect tube
1.0–4.1 bar
(15–60 psi)
(Maximum)
Exhaust
Vented to atmosphere
Not Applicable
The sound level around reciprocating equipment cannot be predicted by ATI because the sound pressure
from reciprocating operations is process and part dependent. To reduce the sound from the cutting operation
in neighboring work areas, a customer‑supplied barrier surrounding the installation may be installed
(Plexiglas
®
or Lexan
®
The compliance force, air supply pressure regulator should have a range of 1‑4.1 bar (15‑60 psi). When
testing for the proper contact force, start with about 1 bar (15 psi) and increase slowly until the desired
cut is achieved.