Soft Start
Soft start shall be a solid state SCR network that shall gradually increase motor torque. Separate adjustments for time and torque shall be provided.

Rupture Valve
Rupture valve shall be mounted directly to cylinder inlet. In the event of pressure loss in hydraulic system ahead of valve, the valve shall close and bring the car to an immediate controlled stop. The valve shall be field adjustable to close at 10% under no load pressure, and shall open automatically when either the load is removed from the cylinder or pressure is restored to the hydraulic system.

Tank Heater
Heater shall be of the external surface type, adhered to the exterior of the oil reservoir and thermostatically controlled to automatically maintain oil temperature between 60 - 70 F.

Auto Lowering
Provide circuitry and auxiliary power supply to allow car to descend to lowest landing in the event of failure of the main power supply. All safety circuits shall be fully operational. Provide circuitry to allow for either automatic or passenger initiated descent of car.

2 Speed Valve
Hydraulic unit control valve shall be machined from solid aluminum billet, with the following field adjustable functions: check valve, relief valve, up start, up transition, up leveling, up stop, down start, down speed, down transition, down level, and down stop. Unit valve shall be equipped with self closing manual lowering valve, self cleaning strainer, pressure gauge & shut off.

Microprocessor
Optional programmable controller shall have I/O capacity as required for the specific installation. The operating program shall be fully field programmable, and shall be viewable in real time with a laptop computer operating in the Windows environment. Inputs shall be 24VDC sink or source, outputs shall be relay type.

Retiring Cam
Heavy duty parallel arm gravity-drop cam with sufficient weight to open interlock, with torque motor to raise cam to lock door.

Scissor Gate
Collapsing gate shall be heavy duty Bostwick type, with a minimum of 11 stiles and a minimum of 2 sets of relating scissors. Gate shall conform to all applicable requirements of ANSI 17.1. Stiles shall be fabricated from rolled steel channel. Relating scissors shall be fabricated from 1/8" steel flat stock. Gate shall be suspended on every other stile by a 3 wheel truck assembly, with provisions for height adjustment. Wheels shall be ball bearing type with polyurethane tires. The bottom of each stile shall be fitted with a nylon guide. The entire gate assembly shall be coated with enamel.

Automatic Gate Closer
Gate shall be designed to close automatically after a field adjustable time delay. Closer shall be of the spirator type, with winding reel and aircraft cable with suitable attachment. Winding reel shall have provisions for retention by an adjustable solenoid, activated by the time delay circuit.

Gate Operator
Operator shall be traction drive type, with DC gearmotor, traction sheave, adjustable deflector sheaves, adjustable open and close limits, and control unit with DC power supply. Open and close speeds shall be fully adjustable. Traction drive shall be adjustable to provide for loss of traction if gate is obstructed. Signal from main control shall actuate open or close operation. Optional reopening device shall stop gate from closing and return it to the open position.

Swing Door / Accordion Gate Operator
Power operator shall be DuraSwing DS-4H (swing door) / DS-4S (accordion gate) as manufactured by Door Motion Technologies. Drive system shall be SafeTek microprocessor control, with closed loop motor rotation feedback. Drive system shall automatically reverse upon sensing an obstruction. On-board potentiometers shall control opening width, hold open time and opening force. On-board power supply and form C contact shall be provided to control electric strike if required.

Chassis shall be welded steel with holes for mounting. Cover shall be steel and shall fully enclose operating components. Unit shall be universal-handed and shall not exceed 5.5 x 5.7 x 11.5 inches. Gearmotor shall have all steel gears and a duty cycle of 4 times per minute. The power supply shall be 120 VAC 60 Hz 15A single phase, with an average full load current of 3A. Standard finish shall be polyester powder coat in dark bronze, taupe or silver. Operator shall have a 1 year limited warranty, with a 3 year warranty on gearmotor.

Master Operator
Model 4300 by Power Access. Electromechanical type utilizing independent roller arm actuation. Operator shall be mounted on the elevator car and shall be electrically interlocked with the gate. Unit shall stop if it meets an obstruction. Seven second cycle time. Works with standard door closer.

Elevator Concepts LTD continually improves its products, and reserves the right to modify these specifications at any time without prior notice. Please check with us or an authorized TIGER LIFT dealer before incorporating any specifications or dimensions in working construction documents. We are happy to review your documents at any time and will provide specifications tailored to your requirements at no charge.

Specifications
general | traction | hydraulic | winding drum | options