GYG ELEVATOR

Rope Gripper is responsible
for the safety of our customers.

Rope Gripper ™ is an over speed protection device that protects passengers from the risk of injury due to failure of the brake control system of the elevator, breakdown of the brake, and failure of the component that determines the car speed in the ascending or descending direction. If the elevator car door is open due to slipping or if it exceeds the rated speed, it will stop the car safely by catching the main rope of the elevator when sudden rise or fall.

			Rope Gripper Model
			#620	#622	#624	#626	#626-SPL
Common		Max. Out to Out of Cables	124mm	152mm	254mm	254mm	349mm
		Power Supply	6A, 120V AC, 1PH, 60HZ
		Contact Ratings	6A, 120V AC, 0.15A, 250 DC
1:1Roping	Maximum Raitings	Rated Speed	106m/min	183m/min	366m/min
		Rope Gripper Tripping Speed	122m/min	210m/min	417m/min
		Car Rated Load (With 40 to 50% Counterweight)	1,134kg	2,268kg		4,536kg
		Total System Load (Car, Car Load, Counterweight, Hoist and Compensation Rope Mass)	5,216kg	8,437kg		17,236kg
		Door Zone	254mm
	Min.	Car Rated Load	272kg	680kg		1,134kg
		Car & Counterweight Mass	1,034kg	2,722kg		3,629kg
2:1Roping	Maximum Raitings	Rated Speed	76m/min	122m/min	244m/min
		Rope Gripper Tripping Speed	92m/min	140m/min	280m/min
		Car Rated Load (With 40 to 50% Counterweight)	2,268kg	4,536kg		9,072kg
		Total System Load (Car, Car Load, Counterweight, Hoist and Compensation Rope Mass)	10,433kg	17,236kg		34,472kg
		Door Zone	254mm
	Min.	Car Rated Load	680kg	1,134kg		2,268kg
		Car & Counterweight Mass	2,722kg	3,629kg		7,258kg
Weight after carton box packaging			48kg	65kg	129kg	135kg	157kg

When ordering a Rope Gripper, please describe the following information in detail.
Max. Out to Out of Cables, number of main rope and rope diameter, roping arrangement (such as 1: 1 or 2: 1), Rated Speed, Car Rated Load, Car & Counterweight Mass, Total System Load (Car, Car Load, Counterweight, Hoist and Compensation Rope Mass)

Main Parts Name

Gripper Unit

Pumping Unit

Using a spring moving along the fixed cam

It has the mechanical advantage of using a spring that moves along the fixed cam, so it can grab the main rope strongly but smoothly so that excessive pressure or damage can not be applied to the main rope of the elevator without modifying the machine or hoisting machine sheave or other devices.

It is possible to prevent accidents when the slipping phenomenon of the traction machine occurs.

When the slipping phenomenon of the traction machine occurs, the accident can be prevented. This cam action is designed to compensate for lining wear and spring drooping so that constant pressure is applied to the elevator rope, even if the spring force is reduced to less than half the original.

: When the gripper unit is open, the spring is fully compressed and the magnetized solenoid trigger device keeps the spring from being inflated.

As a result, the movable shoe is widened at regular intervals to move the main rope naturally.

: If an emergency occurs in which the door of the elevator is out of the door zone and when the speed or elevator door is open, the contact of the elevator controller cuts off the electricity supplied to the solenoid to release the trigger device. If electricity is not supplied to this solenoid and the magnetizing force is lost, the spring expands to brake the rope and the flow control plate moves.

When the spring expands, the oil inside the cylinder smoothly returns to the tank, allowing shock protection.

: In order to reset the Rope Gripper again while the Rope Gripper is activated with holding the rope, the contact of the Elevator Controller must first be closed when all signals are normal to all signals. This will supply electricity to the pump motor and the electrical trigger solenoid at the same time.

At this time, the hydraulic valve is closed, the oil is pumped into the cylinder, and the piston of the cylinder returns, consequently the spring is compressed along the cam's motion curve.

When the rope gripper is fully returned to the standby state again, the microswitch will stop the pump motor and the electro solenoid will hold the spring in place. The contact of the rope gripper is also closed indicating that the elevator is ready for operation.

Even when the power is turned off, the system returns automatically to the same status. If you want to operate in the return state in case of power failure, you can make the return state by operating the hydraulic pump manual pump rod.

: When the lining of the braking plate wears due to excessive use of the rope gripper in an abnormal state, the shaft moves to the vicinity of the upper end of the cam when the spring expands to operate the microswitch, thereby this will prevent the rope gripper from being reset, and stop the elevator until it is replaced or readjusted.

Even though the lining is worn out and the shaft rises along the cam and the spring force weakens, the lining that brakes the rope due to the mechanical characteristics of the cam structure is designed to apply a constant resultant force.

Obtained CSA quality certification

Successful localization from Hollister-Whitney with quality certified products from CSA and supply at practical price

Field installed pictures

Geared
Gearless
MRL

MODEL	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
#620	257	219	124	140	297	305	232	143	89	241	342	45	292	153	89	317	374
#622	292	254	152	140	373	413	230	143	87	241	419	45	292	153	89	317	374
#624	419	368	254	190	454	490	273	162	111	305	471	40	292	153	89	317	374
#625	457	406	292	190	454	490	273	162	111	305	471	40	292	153	89	317	743
#626	419	368	254	190	456	493	273	162	111	305	471	40	292	153	89	317	374
#626-SPL	514	464	349	190	456	493	273	162	111	305	471	40	292	153	89	317	374

Product

Product

Rope Gripper