• Approved Hydraulics AH630CS Hydraulic Cone Splitter - Approved Hydraulics

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    AH630CS Hydraulic Cone Splitter

    Key Features

    • Host machines: excavators 3–7 t; backhoes; telehandlers; cranes
    • Weight: ~170 kg excluding hitch
    • Cone: 200 mm diameter x 400 mm long; removable hardened tip
    • Motor torque: up to ~2338 N·m
    • Max log size: ~2 m long x 1.1 m diameter
    • Use: splits timber and difficult roots efficiently

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    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Out of Stock
    AH700 Stroke Multi-purpose Log Splitter (Rotator & Hitch not included) - Approved Hydraulics Limited
    Regular price £3,894.06
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    AH700 Stroke Multi-purpose Log Splitter (Rotator & Hitch not included)

    Key Features

    • Model: AH700MPL-X multi-purpose log splitter
    • Carrier class: excavators 3–8 t
    • Cut: double-stroke split function for faster processing
    • Mounting: excavator mount or trailer/static power setup
    • Use: multifunction wood splitting; site or yard processing
    Regular price £3,894.06
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  • Approved Hydraulics AH800CS Hydraulic Cone Splitter - Approved Hydraulics

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    AH800CS Hydraulic Cone Splitter

    Key Features

    • Host machines: excavators 8–16 t; backhoes; telehandlers; cranes
    • Weight: ~185 kg excluding hitch
    • Cone: 250 mm diameter x 400 mm long; removable hardened tip
    • Motor torque: up to ~2475 N·m
    • Max log size: ~3 m long x 1.3 m diameter
    • Use: high output splitting of large diameter logs and roots

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    • 1 Year Limited Manufacturers Warranty
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  • Approved Hydraulics AH900FC Log Cracker - Approved Hydraulics

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    AH900FC Log Cracker

    Key Features

    • Type: floor-mounted log cracker for cranes or excavators
    • Jaw opening: 900 mm
    • Operation: logs positioned between splitting jaws for direct split
    • Use: split large diameter rounds on site
    • Status: model available in standard and ex-demo listings

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Team Member

    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.

  • AIR/Breather Filter Element - FCD01 - 3 µm
    Regular price £16.68
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    AIR/Breather Filter Element - FCD01 - 3 µm

    Key Features

    • Type: air/breather filter element
    • Series: FCD01
    • Filtration rating: 3 µm
    • Function: filters intake air on hydraulic reservoir breather
    • Use: protects system from particulate ingress
    • Maintenance: replace during scheduled service or clogging
    Regular price £16.68
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  • Allison 10 Bolt gasket - Approved Hydraulics Limited
    Regular price £23.40
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    Allison 10 Bolt gasket

    Key Features

    • Pattern: 10‑bolt PTO aperture (Allison 3000/4000 series)
    • Function: seals PTO cover or unit to transmission housing
    • Use case: replace on PTO install or service
    • Prevents: oil leaks & contamination ingress
    • Notes: sized for Allison 10‑bolt PTO opening
    Regular price £23.40
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  • Allison PTO Pressure Switch - Approved Hydraulics Limited
    Regular price £56.45
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    Allison PTO Pressure Switch

    Key Features

    • Function: hydraulic pressure switch for PTO status
    • Application: Allison PTO circuits
    • Signal: on-off electrical output
    • Use: enables interlocks or indicator lamps
    • Compatibility: 12/24 V vehicle systems
    • Note: preset actuation threshold; verify thread before install
    Regular price £56.45
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  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £1,554.71
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    Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68

    Key Features

    • Product code: TF9063C3ENDP
    • PTO series: TF90 transmission PTO for Allison 3000/4000
    • Input gear: Allison 10.16 P input gear
    • Shift type: 24 V electro hydraulic
    • Output standard: EN DIN 5462 8x32x36 ISO 4 bolt
    • Internal ratio: 1 to 0.68 speed ratio code C
    • Power at 1000 rpm: 114 hp
    • Max torque: 590 lb ft at ratio C; 590 lb ft series max
    • Lubrication: Standard pressure lubrication
    • Mounting: Assembly 3 left forward; rotatable direct mount flanges; weight 62 lb
    Regular price £1,554.71
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  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £1,554.71
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    Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,73

    Key Features

    • Product code: TF9063D3ENDP
    • PTO series: TF90 transmission PTO for Allison 3000/4000
    • Input gear: Allison 10.16 P input gear
    • Shift type: 24 V electro hydraulic
    • Output standard: EN DIN 5462 8x32x36 ISO 4 bolt
    • Internal ratio: 1 to 0.73 speed ratio code D
    • Power at 1000 rpm: 107 hp
    • Max torque: 550 lb ft at ratio D; 590 lb ft series max
    • Lubrication: Standard pressure lubrication
    • Mounting: Assembly 3 left forward; rotatable direct mount flanges; weight 62 lb
    Regular price £1,554.71
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    • Order by 3pm for Next Day Delivery
  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £1,554.71
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    Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,83

    Key Features

    • Product code: TF9063E3ENDP
    • PTO series: TF90 transmission PTO for Allison 3000/4000
    • Input gear: Allison 10.16 P input gear
    • Shift type: 24 V electro hydraulic
    • Output standard: EN DIN 5462 8x32x36 ISO 4 bolt
    • Internal ratio: 1 to 0.83 speed ratio code E
    • Power at 1000 rpm: 94 hp
    • Max torque: 485 lb ft at ratio E; 590 lb ft series max
    • Lubrication: Standard pressure lubrication
    • Mounting: Assembly 3 left forward; rotatable direct mount flanges; weight 62 lb
    Regular price £1,554.71
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £1,554.71
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    Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:1

    Key Features

    • Product code: TF9063M3ENDP
    • PTO series: TF90 transmission PTO for Allison 3000/4000
    • Input gear: Allison 10.16 P input gear
    • Shift type: 24 V electro hydraulic
    • Output standard: EN DIN 5462 8x32x36 ISO 4 bolt
    • Internal ratio: 1 to 1.00 speed ratio code M
    • Power at 1000 rpm: 78 hp
    • Max torque: 405 lb ft at ratio M; 590 lb ft series max
    • Lubrication: Standard pressure lubrication
    • Mounting: Assembly 3 left forward; rotatable direct mount flanges; weight 62 lb
    Regular price £1,554.71
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    • Order by 3pm for Next Day Delivery
  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £874.13
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    ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; LEFT ASSEMBLY

    Key Features

    • Transmission compatibility: Allison 10.16P RH (10‑bolt)
    • Control: constant mesh (live drive)
    • PTO ratio: 1.0;74
    • Assembly: left‑side
    • Output: EN (ISO 4‑bolt) flange
    • ABER reference: TF10A74MLEN
    Regular price £874.13
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  • Allison PTO; CLUTCH; ISO 4 BOLT; HEAVY DUTY; 24V; 1:0,68 - Approved Hydraulics Limited
    Regular price £874.13
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    ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; RIGHT ASSEMBLY

    Key Features

    • Transmission compatibility: Allison 10.16P RH (10‑bolt)
    • Control: constant mesh (live drive)
    • PTO ratio: 1.0;74
    • Assembly: right‑side
    • Output: EN (ISO 4‑bolt) flange
    • ABER reference: TF10A74MREN
    Regular price £874.13
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  • Out of Stock
    Aluminium Hydraulic Female AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 2 Pump - Approved Hydraulics Limited
    Regular price From £294.06
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    Aluminium Hydraulic Female AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 2 Pump

    Key Features

    • Gear ratio: 3 ; 1 PTO speed increase
    • Power rating: 20 kW maximum
    • Input coupling: female quick fit PTO 1 3/8 inch 6T per DIN 9611
    • Pump interface: pre fitted Group 2 gear pump
    • Use case: driving auxiliary hydraulics from tractor PTO circuits
    • Orientation: aluminium housing allows multiple mounting positions
    Regular price From £294.06
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  • Aluminium Hydraulic FEMALE Shaft AGRI PTO Gearbox 3:1 Ratio (10 kW Max) with Group 2 Pump - Approved Hydraulics Limited
    Regular price From £225.60
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    Aluminium Hydraulic FEMALE Shaft AGRI PTO Gearbox 3:1 Ratio (10 kW Max) with Group 2 Pump

    Key Features

    • Construction: aluminium housing
    • Shaft: female
    • Ratio: 3.1
    • Max power: 10 kw
    • Pump: integrated group 2 pump
    • Use: agricultural hydraulic drive
    Regular price From £225.60
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  • Out of Stock
    Aluminium Hydraulic Female Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 3 Pump - Approved Hydraulics Limited
    Regular price £382.30
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    Aluminium Hydraulic Female Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 3 Pump

    Key Features

    • Gear ratio: 3 ; 1 speed increase
    • Power rating: 20 kW
    • Input coupling: female quick coupling PTO 1 3/8 inch 6 spline standard
    • Pump interface: supplied with Group 3 gear pump for higher displacement
    • Recommended limits: keep gearbox output below 3000 rpm per common PTO gearbox guidance
    • Construction: aluminium gearbox for low mass on 3 point link implements
    Regular price £382.30
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  • Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (10 kW Max) with Group 2 Pump - Approved Hydraulics Limited
    Regular price £225.66
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    Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (10 kW Max) with Group 2 Pump

    Key Features

    • Gear ratio: 3 ; 1 step up
    • Power rating: 10 kW maximum
    • Input/output: 540 rpm PTO nominal to ~1620 rpm output
    • Shafts: male 1 3/8 inch 6T PTO input
    • Pump interface: Group 2 pump fitted ; suited to lower flow auxiliary circuits
    • Housing: aluminium body ; compact size for light implements
    Regular price £225.66
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 2 Pump - Approved Hydraulics Limited
    Regular price £282.06
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    Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 2 Pump

    Key Features

    • Gear ratio: 3 ; 1 speed increase from PTO to pump
    • Power rating: 20 kW max continuous service
    • Input/output: PTO 540 rpm nominal ; gearbox output up to 1620 rpm with limit below 3000 rpm
    • Shafts: male PTO input 1 3/8 inch 6T ; mates to agricultural tractors
    • Pump interface: supplied with Group 2 gear pump pre fitted
    • Housing: aluminium body for reduced weight in mobile applications
    Regular price £282.06
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 3 Pump - Approved Hydraulics Limited
    Regular price From £403.26
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    Aluminium Hydraulic Male Shaft AGRI PTO Gearbox 3:1 Ratio (20 kW Max) with Group 3 Pump

    Key Features

    • Gear ratio: 3 ; 1 step up for pump speed
    • Power rating: 20 kW maximum
    • Input/output: 540 rpm PTO nominal to ~1620 rpm output ; observe 3000 rpm max output guidance
    • Shafts: male PTO 1 3/8 inch 6 spline interface
    • Pump interface: supplied with Group 3 gear pump for higher flow demand
    • Construction: lightweight aluminium gearbox for agricultural PTO duty
    Regular price From £403.26
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Aluminum Flange For Mounting kit for frame 100/112 B14 AC motor - Approved Hydraulics Limited
    Regular price £29.90
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    Aluminum Flange For Mounting kit for frame 100/112 B14 AC motor

    Key Features

    • Material: aluminum
    • Interface: iec b14 motor flange
    • Frame size: 100/112
    • Use: mount ac motor to central manifold ; pump
    • Compatibility: group 1 pump ; matching semi couplings
    Regular price £29.90
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  • Aluminum Flange For Mounting kit for frame 71 B14 AC motor - Approved Hydraulics Limited
    Regular price £12.64
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    Aluminum Flange For Mounting kit for frame 71 B14 AC motor

    Key Features

    • Material: aluminum
    • Interface: iec b14 motor flange
    • Frame size: 71
    • Use: mount ac motor to central manifold ; pump
    • Compatibility: group 1 pump ; matching semi couplings
    Regular price £12.64
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  • Aluminum Flange For Mounting kit for frame 80 B14 AC motor - Approved Hydraulics Limited
    Regular price £13.54
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    Aluminum Flange For Mounting kit for frame 80 B14 AC motor

    Key Features

    • Material: aluminum
    • Interface: iec b14 motor flange
    • Frame size: 80
    • Use: mount ac motor to central manifold ; pump
    • Compatibility: group 1 pump ; matching semi couplings
    Regular price £13.54
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  • Aluminum Flange For Mounting kit for frame 90 B14 AC motor - Approved Hydraulics Limited
    Regular price £19.39
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    Aluminum Flange For Mounting kit for frame 90 B14 AC motor

    Key Features

    • Material: aluminum
    • Interface: iec b14 motor flange
    • Frame size: 90
    • Use: mount ac motor to central manifold ; pump
    • Compatibility: group 1 pump ; matching semi couplings
    Regular price £19.39
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    • Order by 3pm for Next Day Delivery
  • Antenna extension cable 10M
    Regular price £176.12
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    Antenna extension cable 10M

    Key Features

    • Type: antenna extension cable for RC400 receiver
    • Length: as specified in title
    • Impedance: 50 ohm typical
    • Connector: coax connection for RC400 antenna port
    • Use: optimise radio reception by relocating antenna
    Regular price £176.12
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

All for Professional Hydraulic Applications

Discover quality all from Approved Hydraulics, trusted by professionals across construction, transport, forestry, agriculture and industrial sectors. Built for demanding working environments, our range offers dependable performance, durable construction and trusted reliability. Whether you are replacing existing parts or specifying components for a new build, our experienced team can help you find the right product. With fast UK delivery and expert technical support, Approved Hydraulics supplies hydraulic equipment you can rely on.

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.