19 TECHNICAL INFORMATION Symbols Flow Q Operating p pressure Internal diameter, d hydraulic cylinder Area of hydraulic A cylinder Piston force F Piston speed V Power requirement P for motor Pump displacement D Torque requirement M Equations Q = 0,06 x V x A 0,1 x A p = F 4 A = ∏ x d2 Max pressure p1 230 bar Intermittent p2 255 bar N m/s kW START SWITCHES Dimensional drawing 12/24 VDC start switch G G TYPICAL CIRCUIT P = p x Q 600 x Tot mm2 28 55.6 5.5 93.9 57 54 56 5.6 32 58 53 29 M8 93 + + Cyl. down Cyl. up M Code Start switch A None U 12VDC, MG and MH motor Ø80 V 24VDC, MG and MH motor Ø80 W 12VDC, MD and MA motor Ø112 X 24VDC, MD and MA motor Ø112 G 24VDC, MA motor, Heavy duty Ø125 U V W X U V W X Allowable fluids HL or HLP hydraulic oils according to DIN 51524. Biogradable fluids eg. Statoil Bio Pa. Before using other types of fluids, contact factory. Recomended viscosity 40-16mm2/s. Permissible cold start viscosity is 2000mm2/s. Contact factory before using fluids outside this range. Temperature min -25oC, max +80oC. Fluid cleanliness We recommend a cleanliness according to IS4406/1986 Code 18/14 or better to achieve optimal performance and lifetime. When operating outside these limits, see recommendations in “Allowable fluids”. PUMP INFO Common units l/min bar mm cm3/rev Nm M = D x p 62,8 x mek quality products for mechanical & fluid power ~ jbj Techniques Limited, www.jbj.co.uk UK distributor for Concentric Hydraulics
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