Wherever cam operated Limit Switches might be used, a Unimax Hinge or Link Actuated Switch will provide a neat and more reliable solution. The Hinge switch is for safeguarding personnel against hazards contained within a perimeter fence, but may also be used at loading stations.

The Link-Switch is for safeguarding hinged panels and loading stations and can be fitting inside equipment. These types do not secure the guard and are not suitable for removable covers.

GW Safety Position Switch systems consist of two basic elements:

1. A tamper-resistent enclosure permanently fixed to the inside of the machine or at the guard of the hazardous area.

2. A specially-developed, Positive Action Switch secured to the body of the actuator

GW8
The switches and shaft are mounted on a flexible platform inside the enclosure for installations where the guard hinge may not be properly aligned with the fixing surface. This model is not sealed where the shaft enters the Polycarbonate or metal enclosure
 
GW81
The selected fail-safe switches are actuated by a stainless steel shaft which is bored and cross-drilled ready for mounting to an extended hinge pin. It can be rotated through 360 degrees and adjusted to switch within 2 degrees of movement either way. The whole is sealed to IP65 Standard to prevent ingress of water, oil, or dust irrespective of mounting postion. This model is always supplied with a die-cast aluminium enclosure.

 
GW9
Supplied complete with plated steel short link arm size and door bracket available in a Polycarbonate or Metal enclosure. The crankshaft has a patented vernier adjustment which ensures that switching can occur within 1 deegree of movement. The guard can be operated fast and frequently, for example at a machine loading station
.
GW91
As GW9 but supplied with a long link arm size

 

 

 

ACTUATOR

SWITCH CIRCUIT

ENCLOSURE

  

  

  

                                                               

ACTUATOR

SHAFT FEXIBLE MOUNTED UNSEALED

GW8

 

 

BORED SHAFT RIGID FULLY SEALED

GW81

 

 

SHORT LINK ARM

GW9

 

 

LONG LINK ARM

GW91

 

 

SWITCH CIRCUIT

SINGLE POLE

 

11

 

DOUBLE POLE

 

21

 

CHANGEOVER

 

22

 

THREE POLE

 

31

 

DOUBLE POLE + INDICATOR

 

32

 

CHANGEOVER + INDICATOR

 

33

 

ENCLOSURE

POLYCARBONATE MOULDED STANDARD

 

 

P

METAL DIE-CAST

 

 

M

GW8 MUST HAVE A P OR M ENCLOSURE
GW81 AVAILABLE ONLY IN METAL ENCLOSURE M
GW9 & 91 ENCLOSURE OPTIONAL

GW822P                UNSEALED SHAFT CHANGEOVER FAIL SAFE SWITCH POLYCARBONATE ENCLOSURE.

GW911                  SHORT LINK ARM ACTUATED SINGLE POLE FAIL SAFE SWITCH NOT ENCLOSED.

  For Switch options use the Fail Safe Switch Link at bottom of page to select your required switching action.

 

Home | SAF System | GW System | Fail-Safe Switch | Hinge/Link Switch | Heavy Duty | Remote Delay Distributors | Contact | Catalogue 

Unimax Switch a division of To view other In2tec products visit the in2tec.com web-site