High-Power-HPC-Series-Datasheet
44Pages

High Power HPC Series Dual Displacement Radial Piston Staffa Motor Description Key Features The enhanced version of the standard C series motor includes special low friction components combined with crankcase flushing flow to achieve increased shaft power. The range of HP motors extends from the HPC080 of 1600cc/rev to the HPC325 of 5326 cc/rev. There are 5 frame sizes in this product range for performance details see table below; Motor Type Max. torque @ 275 bar (Nm) Continuous shaft power with flushing (kW) Continuous shaft power without flushing (kW) HPC080 6630 165 138 HPC125 8470 202 135 HPC200 12980 261 174 HPC270 19280 278 189 HPC325 22440 278 189 Enhanced power performance Increased speed Improved starting and running efficiency Increased back pressure capability • High torques at low speed • Smooth running • Wide range of displacements to suit specific applications • Displacements change with ease when the motor is running • Electro-hydraulic or hydro-mechanical control methods available • Various mounting options available

Content Page 1 Performance data 3 Volumetric efficiency data 9 Crankcase flushing flow 10 Functional symbols 11 Displacement control options 12 Shaft stress limits 14 Bearing life notes 15 Circuit and application notes 16 Motor operation at low temperature 19 Freewheeling notes 20 Installation data 21 Crankcase drain connections 22 HPC080 shaft options 23 HPC125 shaft options 24 HPC200 shaft options 25 HPC270/325 shaft options 26 HPC080 installation 27 HPC125 installation 29 HPC200 installation 31 HPC270 installation 33 HPC325 installation 35 Main port connections 37 Speed sensing options...

Introduction Page 2 Kawasaki “Staffa” high torque, low speed radial piston motors use hydrostatic balancing techniques to achieve high efficiency, combined with good breakout torque and smooth running capability. The HPC series dual displacement models have two pre-set displacements which can be chosen from a wide range to suit specific application requirements. The displacements are hydraulically selected by a directional control valve which can be remote mounted or directly on the motor. Motor displacement can be changed with ease when the motor is running. These motors are also available...

Performance data Page 3 Performance data is valid for the range of HPC motors when fully run-in and operating with mineral oil. The appropriate motor displacements can be selected using performance data shown on pages 4 to 8. Refer to the table on this page for pressures and speed limits when using fire-resistant fluids. Limits for fire resistant fluids Fluid Type Continuous Pressure (bar) Intermittent Pressure (bar) Max speed (r.p.m.) Model Type HFA 5/95 oil-in-water emulsion 130 138 50% of limits of petroleum oil All models HFB 60/40 water-in-oil emulsion 138 172 As for petroleum oil All...

Volumetric efficiency data Page 9 Motor Type Geometric displacement Zero speed constant Speed constant Creep speed constant Crankcase leakage constant Fluid viscosity cSt Viscosity factor Kv HPC cc/rev. K1 K2 K3 K4 20 1.58 HPC080 1639 9.5 45.7 5.8 7.9 25 1.44 HPC125 2048 6.1 38.5 3 4.25 30 1.3 HPC200 3087 6.1 38.5 2 4.25 40 1.1 HPC270 4310 6.5 37.3 1.5 6 50 1 HPC325 5210 6.8 40 1.3 6 60 0.88 Qt (total leakage) = [K1 + n/K2 ] x ∆P x Kv x 0.005 (lpm) Creep speed = K3 x ∆P x Kv x 0.005 (rpm) Crankcase leakage = K4 x ∆P x Kv x 0.005 (lpm) ∆P = differential pressure (bar) n = speed (rpm) The...

Crankcase flushing flow Page 10 In order to achieve the maximum shaft power, a crankcase flushing flow of 15 l.p.m. should be directed through the motorcase. To improve the cooling effect of flushing flow, the distance between the inlet and outlet drain port connections should be maximised. Flushing flow orifice Required flushing flow to achieve full rated power : 15 l.p.m. Check valve pressure (bar) * Orifice diameter (mm) 3 4.4 4 4.1 5 3.9 6 3.7 7 3.6 8 3.5 9 3.4 10 3.3 * This assumes that the crankcase pressure is zero, if not then the check valve pressure will need to be increased to...

Functional symbols Page 11 Example model code: HPC***/P/***/**/FM3/X/... Example model code: HPC***/P/***/**/FM3/C/… X - external pilot supply to ‘X’ and ‘Y’ ports C - single external supply to PC port DR Min. 2 1 Max. DR Min. 2 1 Max. PC Y X A P B T External pilot supply Example model code: HPC***/P/***/**/FM3/CS/… Example model code: HPC***/P/***/**/FM3/C1/… CS - internally shuttled pilot supply C1 - internal pilot supply from port 1 for clockwise rotation only DR Min. 2 1 DR Min. 2 1 Max. Max. PC PC A P B T A P B T There is a single port (PC) in the ‘C’ spacer. Pressure ports in FM3 &...

Displacement control options Page 12 Example model code - HPC270/S/280/FM4/X/70 MOUNTING FACE Types: C, CS & C1 MOUNTING INTERFACE FOR DIRECTIONAL CONTROL VALVE* TO: ISO 4401 SIZE 03/ANSI B93,7M SIZE D03. *DISPLACEMENT SELECTOR VALVE IS NOT SUPPLIED WITH MOTOR; SPECIFY & ORDER SEPARATELY CONNECTION TO P PORT G1/4" (BSPF) X 15 FULL THREAD DEPTH, SUPPLIED PLUGGED DETAIL SCALE 2:1 'A' SEE TABLE 11.7 A A T P T P B B 4 HOLES M5 X 12 DEEP Frame Size 6.5 13.0 Y Y X X 13.0 11.0 2 PORTS G¼" (BSPF) X 15 FULL THREAD DEPTH 17.0 HPC080/HPC200 10.7 HPC270/HPC325 DISPLACEMENT SELECTION (VIA REMOTELY...

Displacement control options Page 13 MOUNTING FACE Example model code - HPC200/S3/180/60/FM4/CS/70 CS Type shuttle endcap on F4 & FM4 assemblies only 'B' SEE TABLE ON PAGE 12 CS Type shuttle on F3 & FM3 assemblies only SEE VALVE HOUSING PAGE REFER TO CIRCUIT DIAGRAM ON PAGE 11 FOR 'CS' C-SPACERS

Shaft stress limits Page 14 When applying large external radial loads, consideration should also be given to motor bearing lives, (see page 14). Motor type Maximum external radial bending moment (kNmm) HPC080 4500 HPC125 6500 HPC200 6750 HPHDC200 12200 HPC270 8250 HPHDC270 16000 HPC325 8250 Example: Determine the maximum radial shaft load of a HPC080 motor: Radial load offset, A = 100mm Maximum radial load, W = 4500 (see table)/100 = 45kN (4587 kg) W A A = Distance from mounting face to load centre W = Side load