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Hydraulic Rotators & Links
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120L Type 2 Motor Spool
Key Features
80L TIE ROD KIT (4 Rods / kit) 2 bank M8x1.25 175 mm long
50L Spool Seal Kit (1 x spool)
1/4" BSP Male x 1/4" BSPT Tapered Adaptor
Sales Director
I began my engineering career at Stockport College in around 2005, first completing a National Diploma in Electrical Engineering, followed by a Higher National Diploma in Mechanical Engineering. I then progressed to the University of Salford, where I earned a BEng (Hons) degree in Mechanical Engineering.
After graduating, I started my professional career with Approved Hydraulics. I initially gained a combination of hands-on workshop experience and telephone-based sales experience. In later years, I moved into a full-time sales role and led the new crane and excavator attachments department that the company had recently established.
3/8" BSP Male x 3/8" BSPT Tapered Adaptor
1/2" BSP Male x 1/2" BSPT Tapered Adaptor
1/2" BSP Male x 3/8" BSP Female Swivel Adaptor
Stabiliser Leg Ram Cylinder Assembly 70 x 50 x 220 Stroke (incl Pilot Operated Check Valve)
12vDC Coil For Z50 valve 16.3mm Hole x 50mm Long
80L TIE ROD KIT (4 Rods / kit) 10 Bank M8x1.25 508mm long
Grease Nipple 1/8 BSP
1/2" BSP Female x Female x Female Tee
Electrical plug for 12/24VDC coils EP3/4 kits
80L TIE ROD KIT (4 Rods / kit) 3 Bank M8x1.25 216 mm long
80L TIE ROD KIT (4 Rods / kit) 6 Bank M8x1.25 339mm long
80L Control Valve Intermediate Section With Relief Valve & Auxillery Inlet
90L Monoblock 2 Bank With 1 D/A Spool And 1 Float Spool
100L TIE ROD KIT (4 Rods / kit) 10 Bank M10x1.5 553 long
80L TIE ROD KIT (4 Rods / kit) 5 Bank M8x1.25 298mm long
80L TIE ROD KIT (4 Rods / kit) 8 Bank M8x1.25 421mm long
80L TIE ROD KIT (4 Rods / kit) 11 Bank M8x1.25 546 mm long
80L TIE ROD KIT (4 Rods / kit) 7 Bank M8x1.25 380mm long
240L TIE ROD KIT (4 Rods / kit) 3 Bank M12x1.75 361 mm long
100L TIE ROD KIT (4 Rods / kit) 11 Bank M10x1.5 598mm long
Calculating force, speed, pressure, power, and efficiency in hydraulic applications.
How do you calculate actuator speed?
Actuator speed is determined by flow rate and cross-sectional area: Speed = Flow rate ÷ Area Flow rate is the volume of fluid delivered (in L/min or GPM). Area is the cross-sectional area of the actuator piston: π × (diameter ÷ 2)².
How do you calculate cylinder force?
Cylinder force can be calculated using: Force = Pressure × Area Pressure is the system pressure (in psi or bar). Area is the cross-sectional area of the cylinder bore (in square inches or square centimeters). Area = π × (bore diameter ÷ 2)².
How do you calculate pressure drop across a valve?
Pressure drop can be calculated using the valve flow coefficient (Cv): Pressure Drop (ΔP) = (Flow Rate)² ÷ (Cv² × Fluid Density) Flow Rate is the fluid flow (in GPM or L/min). Cv is the valve flow coefficient. Fluid Density is the density of the hydraulic fluid.
How do you size an accumulator?
Accumulator sizing considers required flow, pressure, and pre-charge: Accumulator Volume = Flow Rate × Time ÷ Pressure This determines how much fluid must be stored to maintain system pressure.
How to convert psi to bar?
Use the conversion factor: 1 bar = 14.5 psi. To convert psi to bar, divide psi by 14.5. Example: 200 psi ÷ 14.5 = 13.79 bar.
What is pre-charge pressure in an accumulator?
Pre-charge pressure is the initial gas pressure in the accumulator before fluid enters. It helps maintain system pressure as the accumulator discharges. Typically set to 70–80% of system operating pressure.
What is specific gravity of hydraulic fluid?
Specific gravity is the ratio of hydraulic fluid density to water. A value of 1 means equal density. Less than 1 means the fluid floats; greater than 1 means it sinks.
What is torque in a hydraulic motor?
Torque is the rotational force produced based on system pressure and motor displacement: Torque = Pressure × Displacement ÷ 2π Pressure is the operating system pressure. Displacement is the volume displaced per revolution (in cubic inches or cubic centimeters).
What unit is hydraulic power measured in?
Hydraulic power is measured in horsepower (HP) or kilowatts (kW). Hydraulic horsepower can be calculated using: HP = (Pressure (psi) × Flow rate (GPM)) ÷ 1714.
What’s the relationship between pump speed and flow?
Flow rate is directly proportional to pump speed. If pump speed doubles, flow rate doubles (assuming constant displacement). This is important when adjusting flow or selecting a pump for varying speeds.
