Prowell Forklift Trucks Steering (SUMITOMO)

STEERING

Forklift Trucks

SUMITOMO EATON ORBITROL

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* Integral Orbitrols have same Spool and Sleeve in design as Standard Orbitrol, but compactly include every kind of integral valves required for each steering systems. In this series, the following seven combinations of the max. three control valves ( 1, 2 and 3) are available. Choose one among the following seven Valve Options, according to each system requirements. (1 + 2 + 3, 1 + 2, 2 + 3, 3 + 1, 1, 2 and 3)

1 : Inlet Relief Valve (1 pc.)
     This is equivalent to the main relief valve in case of steering exclusive circuit and regulates the max. pressure of steering system.
2 : Inlet Check Valve (1 pc.)
    Prevents the Wheel Kick phenomena (Instantaneous shock to Steering Wheel at the start up of steering under cylinder line highly pressurized).
3 : OverIoad Relief & Anti-cavitalion Valves (each 2 pcs.)
    Overload Relief Valve cuts pressure surge in L & R cylinder lines and protects the steering system- including hydraulic lines and cylinders. Anti-cavitation Valve prevents vacuum (cavitation) phenomena in cylinders caused by working of Overload Valve or etc.

Provides compact system design

Reduces'cost by eliminating excess pipings

Be able to use all of the basic specifications (displacement and special features) of Standard Orbitrol

Specifications:

Code No. 211-1008-001 ; Model No. UC-A ; Displacement 96 cm3/rev ; Weight 5.7 kgf
Max. System Pressure	175 kgf/cm² (17.2 MPa)
Rated Flow	22.7 l/min & 45.4 l/min
Max. Back Pressure	20 kgf/cm² (2.0 MPa)
Max. System Operating Temperature	95 deg. C
Steering Input Torque	0.3 kgf.m (2.9 Nm) Reference
Max. Accptable Input Torque at Emergency	12 kgf.m (118 Nm)
Recommended Filtration	10 Micron Nominal Return
Overload Relief Valves Pressure Setting Range	140~230 kgf/cm² (13.7~22.6 MPa)
Note): 210 kgf/cm² (20.6 MPa) High System Pressure, Low Input Torque, Hight Back Pressure, Low Slip and other special specifications are alos available. In the case of Low Slip Orbitrols, the specification are limited under Max. System Pressure 140 kgf/cm² and displacement is less than 120 cm²/rev.