Punch Press Control System Components |
|||||||
A mechanical power press or other hazardous machine using a pneumatically controlled clutch and brake mechanism should use a double valve with a self-contained monitoring device and/or external monitoring system which inhibits further operation of the valve and machine in the event of a failure within the valve. Of course, a double valve is just one of the components in a press control system, and any other elements of the system should be planned with safety as a primary consideration. |
 Heavy
Duty Pressure SwitchNo. 306 NEMA type 12 oil-tight and dust-tight switch is adjustable from 1 to 115 PSI. |
||||||
Sales
& Marketing Customer
Service |
 Limit
SwitchNo. 301 Oil-tight limit switch contains one set normally-open contacts and one set normally-closed contacts. |
||||||
| Electric
Foot Pedal No. 302 An oil-tight foot switch. Contains 1 set, normally-open contacts and 1 set, normally-closed contacts. Includes a treadle guard to protect against accidental tripping. Requires a point of operation guard 
when used for machine actuation," such as safety light curtains or
safety interlock systems. |
 Miniature
Regulator, Oiler, FilterNo. 311A |
||||||
| Operation
Station No. UL-501  Includes two ergonomic run palm buttons and one emergency stop palm button, internally wired. |
|||||||
| Filter,
Regulator, Lubricator No. 311 |
Palm
Button No. 318  Includes ring guard and mounting enclosure. |
||||||
| Rotary
Cam Switch with Drive Check No. 310A  The
primary components which make up the Rotating Cam Limit Switch are Snap
Action Switches and the Micro-Adjust Cams. The Micro-Adjust Cam Block consists
of two cams with 180 degree lobes which can be adjusted relative to the
cam shaft by simply rotating the Adjusting Disc. No 
tools are required to make this adjustment. The adjusting disc can be
manually rotated as shown in the photograph. The cam block has a self-locking
polyurethane gear which automatically locks the cams relative to the cam
shaft, when the required contact setting has been obtained. |
 Pedestal
MountsPainted OSHA yellow and made of heavy angle construction. Model 8000: used to mount cornering mirrors or safety light curtains off of a machine. Model 8500: used to mount an operator station or palm buttons off of a machine and includes a top plate for mounting. Both models are supplied with a floor mounting plate that can be lagged to the floor. |
||||||
| Industrial
Grade Brushless Resolver Transducer Part #40-003 Heavy duty brushless resolver transducer which replaces the current mechanical rotary cam 
switch. |
|||||||
| Resolver
Cabling 30' Part #45-020 |
|||||||
Shut-Off
Valve |
Ordering Procedure | Dimensions All dimensions in inches (millimeters)  |
|
||||
| Part Size PTF | Three-Way Valves Exhaust Downstream Air in Closed Position | ||||||
| 1/4" (6mm) | Part #TO8-200-E1PA | ||||||
| 3/8" (10mm) | Part #TO8-300-E1PA | ||||||
| 1/2" (13mm) | Part #TO8-400-E1PA | ||||||
| Control
of Hazardous Energy Sources TO8 Shut-Off Valves, typically attached to the inlet end of a combination unit, are manually operated, slide type valves that open and close with a short one-inch movement of the slide. The valve slide can be locked in the closed position with a customer supplied padlock. The standard valve is a three-way valve that exhausts downstream air in the closed position. |
|||||||
| Materials of
Construction Body: Zinc Slide: Acetal Plastic Elastomers: Nitride |
Copies
of the actual OSHA standard may be obtained from: International Inquiries:
|
||||||
A
most important aspect of double valve design is the incorporation of
two separate 3/2 normally closed valve elements which are interconnected
within a common valve body assembly. Each of the elements is operated
by its own 3/2 normally closed solenoid pilot valve. When simultaneously
energized, both main valve elements are operated simultaneously. The
probability of both valve elements malfunctioning on the same cycle
is extremely remote.