• Motor Flange Assembly Screw For Mounting kit for frame 100/112 B14 AC motor
    Regular price £1.50
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    Motor Flange Assembly Screw For Mounting kit for frame 100/112 B14 AC motor

    Key Features

    • Standard: din 912
    • Thread: m8 x 55
    • Use: motor flange to kit frames 100/112 b14
    • Material: steel
    • Quantity: set of 4 typical
    Regular price £1.50
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  • Manifold Flange Assembly Screw For Mounting kit for frame 90 & 100/112 B14 AC motor
    Regular price £1.88
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    Manifold Flange Assembly Screw For Mounting kit for frame 90 & 100/112 B14 AC motor

    Key Features

    • Standard: din 912
    • Thread: m8 x 30
    • Use: manifold flange to kit frames 90 ; 100/112 b14
    • Material: steel
    • Quantity: set of 4 typical
    Regular price £1.88
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  • Manifold Flange Assembly Screw For Mounting kit for frame 71 & 80 B14 AC motor
    Regular price £1.86
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    Manifold Flange Assembly Screw For Mounting kit for frame 71 & 80 B14 AC motor

    Key Features

    • Standard: din 912
    • Thread: m8 x 25
    • Use: manifold flange to kit frames 71 ; 80 b14
    • Material: steel
    • Quantity: set of 4 typical
    Regular price £1.86
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  • Motor Flange Assembly Screw For Mounting kit for frame 90 B14 AC motor
    Regular price £1.52
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    Motor Flange Assembly Screw For Mounting kit for frame 90 B14 AC motor

    Key Features

    • Standard: din 912
    • Thread: m8 x 16
    • Use: motor flange to kit frame 90 b14
    • Material: steel
    • Quantity: set of 4 typical
    Regular price £1.52
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  • Adam Hindle

    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.

  • Motor Flange Assembly Screw For Mounting kit for frame 71 & 80 B14 AC motor
    Regular price £1.50
    • All Items Guaranteed
    • Delivery to UK & Ireland

    Motor Flange Assembly Screw For Mounting kit for frame 71 & 80 B14 AC motor

    Key Features

    • Standard: din 912
    • Thread: m6 x 16
    • Use: motor flange to kit frames 71 ; 80 b14
    • Material: steel
    • Quantity: set of 4 typical
    Regular price £1.50
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 11L Plastic Hydraulic Tank 123mm (AC) Neck Flange
    Regular price £30.62
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    11L Plastic Hydraulic Tank 123mm (AC) Neck Flange

    Key Features

    • Capacity: 11 l
    • Material: plastic
    • Neck flange: 123 mm ac
    • Use: ac motor power pack reservoir
    • Mounting: vertical ; horizontal
    Regular price £30.62
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  • Steel Square Vertical Hydraulic Tank 123mm (AC) Neck Flange (Vertical & Horizontal)
    Regular price From £55.12
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    Steel Square Vertical Hydraulic Tank 123mm (AC) Neck Flange (Vertical & Horizontal)

    Key Features

    • Material: steel
    • Neck flange: 123 mm ac
    • Orientation: vertical ; horizontal use
    • Use: reservoir for ac mini power packs
    • Compatibility: 123 mm filler ; breather ; central manifold
    Regular price From £55.12
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  • Suction pipe horizonal
    Regular price £1.81
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    Suction pipe horizonal

    Key Features

    • Use: mini power pack component
    • Note: verify variant against datasheet
    • Compatibility: as per title family
    • Application: hydraulic system component
    • Application: hydraulic system component
    Regular price £1.81
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  • Normally Open Catridge with Manual Overide Button
    Regular price £40.94
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    Normally Open Catridge with Manual Overide Button

    Key Features

    • Valve type: 2/2 poppet normally open
    • Manual override: push button
    • Cavity: sae 08 ; 3/4-16 unf
    • Pressure: up to 350 bar class
    • Flow: up to ~40 l/min class
    • Coil options: 12 vdc ; 24 vdc
    Regular price £40.94
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  • Relief valve 50 to 250 Bar Range
    Regular price £11.15
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    Relief valve 50 to 250 Bar Range

    Key Features

    • Adjustment range: 50 ; 250 bar
    • Cavity: sae 08 ; 3/4-16 unf
    • Function: pump pressure protection to tank
    • Max working: up to 350 bar class
    • Application: mini power pack manifold
    Regular price £11.15
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  • Adjustable Flow Valve Cartridge
    Regular price £13.00
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    Adjustable Flow Valve Cartridge

    Key Features

    • Type: adjustable needle flow control
    • Cavity: sae 08 ; 3/4-16 unf
    • Use: meter in ; meter out flow tuning
    • Pressure rating: up to 350 bar class
    • Application: mini power pack manifold
    Regular price £13.00
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  • MINI Power Pack  Hand pump cartridge 7cc (Only Fits AC Manifold)
    Regular price £45.03
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    MINI Power Pack Hand pump cartridge 7cc (Only Fits AC Manifold)

    Key Features

    • Stroke displacement: 7 cc
    • Fits manifold: ac central manifold only
    • Function: manual emergency operation of circuit
    • Interface: screw in cartridge
    • Use: operate actuator without electric power
    Regular price £45.03
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  • Cavity Plug
    Regular price £3.42
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    Cavity Plug

    Key Features

    • Cavity: sae 08 ; 3/4-16 unf
    • Function: blank unused screw in cartridge cavity
    • Sealing: o ring 14.00 x 1.78 mm class
    • Material: steel ; zinc plated
    • Pressure rating: up to 350 bar typical
    • Use: testing ; bypass ; shipping seal
    Regular price £3.42
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    • Order by 3pm for Next Day Delivery
  • Check valve Cartridge
    Regular price £7.92
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    Check valve Cartridge

    Key Features

    • Type: screw in cartridge check valve
    • Cavity: sae 08 ; 3/4-16 unf
    • Function: permits flow 1 -> 2 ; blocks reverse
    • Cracking pressure: 0.3 bar class
    • Use: backflow prevention ; load holding in mini power packs
    Regular price £7.92
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  • 2 Port 1/2" Pressure Compensated Flow Control Valve
    Regular price £90.06
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    2 Port 1/2" Pressure Compensated Flow Control Valve

    Key Features

    • Type: 2 port pressure compensated flow control cartridge
    • Adjustment: fully adjustable orifice for meter in or meter out
    • Check: reverse free flow check from outlet to inlet
    • Performance: regulates flow largely independent of load pressure
    • Use: precise actuator speed control in mobile hydraulics
    Regular price £90.06
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  • M+S Hydraulic Motor 80 CC/Rev, 4 bolt mount, 34.85 PTO DIN 9611 Agri Shaft
    Regular price £492.19
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    M+S Hydraulic Motor 80 CC/Rev, 4 bolt mount, 34.85 PTO DIN 9611 Agri Shaft

    Key Features

    • Type: low speed high torque orbital motor MS or OMS series
    • Displacement: around 80 cc per rev
    • Shaft: 34.85 mm PTO DIN 9611 spline
    • Mount: 4 bolt square flange pattern
    • Ports: side ports typically G 1/2 with 1/4 drain
    • Use: winches ; augers ; conveyors
    Regular price £492.19
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  • Out of Stock
    100cc MR (SHD) motor with 1" 6 spline shaft - 2 bolt flange - Approved Hydraulics Limited
    Regular price £342.06
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    100cc MR (SHD) motor with 1" 6 spline shaft - 2 bolt flange

    Key Features

    • Type: low speed high torque orbital motor MR series
    • Displacement: 100 cc per rev class
    • Shaft: 1 inch 6 spline SAE 6B
    • Mount: 2 bolt SAE A oval flange
    • Ports: side ports typically G 1/2
    • Use: agricultural ; industrial drives
    Regular price £342.06
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Scanreco 3 Position Detent Toggle Switch Including Rubber Gaitor
    Regular price £44.35
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    Scanreco 3 Position Detent Toggle Switch Including Rubber Gaitor

    Key Features

    • Type: 3-position detent toggle
    • Accessory: rubber gaitor included
    • Use: scanreco control units
    • Typical function: on-off-on or momentary/detent depending on wiring
    • Application: hydraulic attachment component
    Regular price £44.35
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Tie rod - M8 x 168 for mounting 1-4 proportional modules - Approved Hydraulics Limited
    Regular price £11.08
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    Tie rod - M8 x 168 for mounting 1-4 proportional modules

    Key Features

    • Thread: m8
    • Length: 168 mm
    • Mounting capacity: 1-4 proportional modules
    • Use: secure servo/proportional module stack
    • Compatibility: scanreco mod10 servocontrol assemblies
    Regular price £11.08
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    • Order by 3pm for Next Day Delivery
  • Tie rod - M8 x 345 for mounting 8 proportional modules - Approved Hydraulics Limited
    Regular price £20.26
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    Tie rod - M8 x 345 for mounting 8 proportional modules

    Key Features

    • Type: m8 tie rod for proportional module stack
    • Length: 345 mm for mounting up to 8 modules
    • Material: steel rod with threaded ends
    • Function: preload clamping and alignment of stack
    • Use: secure servo modules on base block
    Regular price £20.26
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    • Order by 3pm for Next Day Delivery
  • Emergency stop button c/w box for RC400
    Regular price £81.11
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    Emergency stop button c/w box for RC400

    Key Features

    • Type: emergency stop button with enclosure
    • Contact: safety nc contact block
    • Action: push to latch ; twist to release
    • Integration: mounts to rc400 receiver or panel
    • Use: emergency stop of radio remote system power
    Regular price £81.11
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    • Order by 3pm for Next Day Delivery
  • Scanreco 2 position detent toggle switch
    Regular price £40.48
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    Scanreco 2 position detent toggle switch

    Key Features

    • Type: 2 position detent toggle switch
    • Action: latching both positions
    • Seal: rubber gaiter cap for dust ; moisture protection
    • Rating: suitable for 12 ; 24 vdc control circuits
    • Use: on off or mode selection on transmitter
    Regular price £40.48
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    • Order by 3pm for Next Day Delivery
  • Scanreco cross Joystick 3 axis maxi code 45852 - Approved Hydraulics Limited
    Regular price £677.99
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    Scanreco cross Joystick 3 axis maxi code 45852

    Key Features

    • Type: 3 axis hall effect cross joystick
    • Compatibility: rc400 maxi transmitter panel
    • Axes: x ; y ; z proportional outputs
    • Return: spring centered on all axes
    • Use: precise multi function hydraulic control
    Regular price £677.99
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    • Order by 3pm for Next Day Delivery
  • Scanreco G2B connector kit - Approved Hydraulics Limited
    Regular price £65.72
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    • Delivery to UK & Ireland

    Scanreco G2B connector kit

    Key Features

    • Type: electrical connector kit for g2b receiver
    • Function: field wiring interface for power ; io ; outputs
    • Sealing: ip rated mating plugs and seals
    • Includes: connectors ; pins ; backshells as per kit list
    • Use: install rc400 g2b systems on mobile machinery
    Regular price £65.72
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Common Calculations FAQs

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.