• TF ISUZU MZW6P; 3 EIXOS; COMANDO PNEUMATICO; C/ SE - Approved Hydraulics Limited
    Regular price £556.42
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    PTO ISUZU MZZ-6F PNEUMATIC CONTROL W/SENSOR

    Key Features

    • Gearbox compatibility: ISUZU MZZ-6F
    • Control: pneumatic actuation
    • Sensor: supplied (with sensor)
    • ABER reference: TF3010PS
    • Mounting: PTO aperture on MZZ-6F transmission
    • Pump interface: UNI/ISO direct-mount
    • Use: tipper/crane/truck hydraulic systems
    Regular price £556.42
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    • Order by 3pm for Next Day Delivery
  • TF ISUZU MZW6P; 3 EIXOS; COMANDO PNEUMATICO; C/ SE - Approved Hydraulics Limited
    Regular price £534.42
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    PTO ISUZU MZZ-6F; MECHANIC CONTROL

    Key Features

    • Gearbox compatibility: ISUZU MZZ-6F
    • Control: mechanical actuation (lever/cable)
    • ABER reference: TF3010M
    • Mounting: PTO aperture on MZZ-6F transmission
    • Pump interface: direct-mount UNI/ISO pattern
    • Use: drives hydraulic pump for mobile equipment
    • Option: sensor-ready port (variant dependent)
    Regular price £534.42
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  • Out of Stock
    PTO MERCEDES G-60;G-85,G-90 P.C. (RATIO 1:1,32); W/SENSOR (Z)
    Regular price £473.30
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    PTO MERCEDES G-60;G-85,G-90 P.C. (RATIO 1:1,32); W/SENSOR (Z)

    Key Features

    • Product code: TF8009AMPZ
    • Gearbox compatibility: Mercedes G-60; G-85; G-90
    • PTO internal ratio: 1 to 1.32
    • Control: Pneumatic shift; air connection
    • Continuous torque: 300 Nm
    • Intermittent torque: 420 Nm
    • Power at 1000 rpm: 32 kW
    • Mounting position: Rear mount
    • Pump rotation: Right hand
    • Sensor / feedback: Fitted sensor Z; mechanical drive electric sensor option
    Regular price £473.30
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    • Order by 3pm for Next Day Delivery
  • PTO MERCEDES G5-6/6,29-0,78 P.C. (RATIO 1:1,32); W/ SENSOR (Z)
    Regular price £473.30
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    PTO MERCEDES G5-6/6,29-0,78 P.C. (RATIO 1:1,32); W/ SENSOR (Z)

    Key Features

    • Use case: Power take off unit for driving hydraulic pumps on commercial vehicle gearboxes
    • Notes: Specification information is limited in source listing; confirm dimensions and compatibility before purchase
    • Notes: Details not stated
    • Notes: Details not stated
    • Notes: Details not stated
    Regular price £473.30
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  • 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.

  • PTO MITSUBISHI CANTER MO27S5,MECANICAL
    Regular price £387.01
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    PTO MITSUBISHI CANTER MO27S5,MECANICAL

    Key Features

    • Gearbox compatibility: Mitsubishi Fuso Canter MO27S5
    • Control: mechanical (lever/cable)
    • Mounting: side‑mount using 6‑bolt aperture
    • Pump interface: ISO 4‑bolt/8‑spline
    • Kit contents: studs;nuts;gasket (typical)
    • Power rating: ~20 hp typical
    Regular price £387.01
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  • PTO Pressure Lube Kit
    Regular price £50.76
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    PTO Pressure Lube Kit

    Key Features

    • Kit type: pressurised lubrication add‑on for PTO
    • ABER code: PTOLKAL00
    • Function: maintains oil feed to PTO under load
    • Benefit: reduces wear and extends service life
    • Use: heavy‑duty/continuous PTO operation
    Regular price £50.76
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  • Out of Stock
    PTO SCANIA GR875; GR905; GRS895; GRS905; W/SENSOR - Approved Hydraulics Limited
    Regular price £603.13
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    PTO SCANIA GR875; GR905; GRS895; GRS905; W/SENSOR

    Key Features

    • Gearbox compatibility: Scania GR875/GR905/GRS895/GRS905
    • Control: pneumatic
    • PTO ratio: 1.1;33
    • Mounting: side‑mount orientation
    • Sensor: included (with sensor)
    • ABER reference: TF10017P series
    Regular price £603.13
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  • PTO SCANIA GR875; GR905; GRS895; GRS905; W/SENSOR - Approved Hydraulics Limited
    Regular price £1,160.12
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    PTO SCANIA GRS 905 1200NM SHAFT 620 mm; W/SENSOR

    Key Features

    • Gearbox compatibility: Scania GRS905
    • Torque rating: 1200 Nm
    • Shaft length: 620 mm
    • PTO ratio: 1.1;1
    • Control: pneumatic
    • Sensor: included (with sensor)
    • ABER reference: TF10014P series
    Regular price £1,160.12
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  • Mead PTO Switch - Panel/Dash Mounted Air Control Valve (Electrical Release) - Approved Hydraulics
    Regular price £173.57
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    PTO Switch - Panel/Dash Mounted Air Control Valve (Electrical Release)

    Key Features

    • Type: panel or dash mounted pneumatic PTO control valve
    • Function: manually operated 4/2 switching with electric reset
    • Ports: push in fittings typically 6 mm
    • Interlock: safety reset port for handbrake or ECU signal
    • Use: PTO actuation ; hoist ; auxiliary cylinders
    Regular price £173.57
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  • Mead PTO Switch - Panel/Dash Mounted Air Control Valve (Manual Air Release) - Approved Hydraulics
    Regular price £109.15
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    PTO Switch - Panel/Dash Mounted Air Control Valve (Manual Air Release)

    Key Features

    • Type: panel or dash mounted pneumatic PTO control valve
    • Function: manually operated 4/2 directional switching
    • Ports: push in fittings typically 6 mm
    • Reset: pneumatic reset with indicator band
    • Use: PTO actuation ; hoist ; auxiliary cylinders
    Regular price £109.15
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    • Order by 3pm for Next Day Delivery
  • PTO UNI (3 Bolts) to PUMP EN/ISO (4 Bolts) adapter Complete With Studs And Gaskets
    Regular price £88.04
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    PTO UNI (3 Bolts) to PUMP EN/ISO (4 Bolts) adapter Complete With Studs And Gaskets

    Key Features

    • Function: adapts UNI 3-bolt PTO to ISO 4-bolt pump flange
    • Includes: studs and gaskets for installation
    • Benefit: cross-standard PTO–pump compatibility
    • Use case: mount ISO 4-bolt pump on UNI 3-bolt PTO
    • Mounting pattern: UNI (3 holes) ↔ ISO (4 holes)
    • Application: direct-mount pump drive on truck PTOs
    Regular price £88.04
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  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £543.56
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    PTO ZF 5S-50 REINFORCED (RATIO 1:1,33)

    Key Features

    • Application: zf 5s-50 gearbox pto
    • Variant: reinforced
    • Ratio: 1.1;33
    • Sensor: no sensor specified
    • Use: hydraulic pumps ; continuous duty
    Regular price £543.56
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  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £543.56
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    PTO ZF 5S-50 REINFORCED (RATIO 1:1,58)

    Key Features

    • Application: zf 5s-50 gearbox pto
    • Variant: reinforced
    • Ratio: 1.1;58
    • Sensor: no sensor specified
    • Use: hydraulic pumps ; continuous duty
    Regular price £543.56
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £543.56
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    PTO ZF 5S-50 REINFORCED (RATIO 1:1,73)

    Key Features

    • Application: zf 5s-50 gearbox pto
    • Variant: reinforced housing
    • Ratio: 1.1;73
    • Engagement: clutch control per gearbox option
    • Use: truck wet kits ; hydraulic pumps ; mixers
    Regular price £543.56
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £505.43
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    PTO ZF 6S-300 MECHANIC CONTROL

    Key Features

    • Gearbox compatibility: ZF 6S‑300
    • Control: mechanical (lever/cable)
    • Mounting: side‑mount (6‑bolt aperture)
    • Pump interface: ISO 4‑bolt / UNI 3‑bolt (per variant)
    • Applications: tippers, recovery beds, small cranes
    Regular price £505.43
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £498.00
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    PTO ZF 6S-380 MECHANIC CONTROL

    Key Features

    • Gearbox compatibility: ZF 6S‑380 / 6S‑400 family
    • Control: mechanical (lever/cable)
    • Mounting: side‑mount (6‑bolt aperture)
    • Pump interface: ISO 4‑bolt direct‑mount
    • Approx weight: ~8 kg (aluminium housing)
    • Use: direct drive of hydraulic pumps on light/medium trucks
    Regular price £498.00
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £527.42
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    PTO ZF S5-42/4,65 C.P.

    Key Features

    • Gearbox compatibility: ZF S5-42
    • Variant: /4,65 configuration
    • Control: pneumatic (C.P.)
    • Mounting: side-mounted PTO (6-bolt aperture)
    • Function: drives hydraulic pump from transmission
    • Pump interface: UNI/ISO standard pattern (model dependent)
    • Use: mobile hydraulics (tippers, cranes, recovery)
    Regular price £527.42
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £527.42
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    PTO ZF S5-42/5,72 C.P.; With Sensor

    Key Features

    • Gearbox compatibility: ZF S5‑42 (5.72 ratio variant)
    • Control: pneumatic side‑mount operation
    • Mounting: 6‑bolt PTO aperture (near/offside)
    • Output: UNI 3‑bolt or ISO 4‑bolt (model dependent)
    • Sensor: included (pressure/speed on‑off)
    • Output speed: ~95% of engine speed (typical for 5.72)
    • Torque examples: ~145–206 Nm depending on variant
    Regular price £527.42
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    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £383.32
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    PTO ZF S6-36 C.P. (RATIO 1:1,32)

    Key Features

    • Product code: TF4014AMP
    • Gearbox compatibility: ZF S6-36; ZF 6S-850; ZF 6S-700
    • PTO internal ratio: 1 to 1.32
    • Control: Pneumatic shift; air connection
    • Continuous torque: 300 Nm
    • Intermittent torque: 420 Nm
    • Power at 1000 rpm: 32 kW
    • Mounting position: Rear mount
    • Pump rotation: Right hand
    • Weight: 7.5 kg; sensor option available
    Regular price £383.32
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • PTO ZF S6-90 C.P.(1:1); NO SENSOR - Approved Hydraulics Limited
    Regular price £169.87
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    PTO ZF S6-90 C.P.(1:1); NO SENSOR

    Key Features

    • Application: zf s6-90 gearbox pto
    • Actuation: cable ; pneumatic per kit
    • Ratio: 1.1
    • Sensor: no speed sensor
    • Use: truck wet kits ; pumps
    Regular price £169.87
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    • Order by 3pm for Next Day Delivery
  • PTO ZF TWIN OUTPUT; S5/S6/6S; NO SENSOR
    Regular price £1,240.68
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    PTO ZF TWIN OUTPUT; S5/S6/6S; NO SENSOR

    Key Features

    • Gearbox compatibility: ZF S5 / S6 / 6S families
    • Outputs: twin pump outputs (two mounting flanges)
    • Control: pneumatic actuation
    • Sensor: not supplied (no sensor)
    • ABER reference: TF4201AMP
    • Benefits: drive two pumps or pump + accessory simultaneously
    • Mounting: PTO aperture on ZF manual transmissions
    Regular price £1,240.68
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    • Order by 3pm for Next Day Delivery
  • PTO; IVECO; 2840.6 - MECHANICAL
    Regular price £498.00
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    PTO; IVECO; 2840.6 - MECHANICAL

    Key Features

    • Use case: Power take off unit for driving hydraulic pumps on commercial vehicle gearboxes
    • Notes: Specification information is limited in source listing; confirm dimensions and compatibility before purchase
    • Notes: Details not stated
    • Notes: Details not stated
    • Notes: Details not stated
    Regular price £498.00
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Squires Engineering Quick Release Coupling - Approved Hydraulics
    Regular price From £348.06
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    • Delivery to UK & Ireland

    Quick Release Coupling

    Key Features

    • Type: hydraulic quick release coupling
    • Standard: options per iso 7241 series a ; b and iso 16028 flat face
    • Valve: poppet or flat face valve with ball latch
    • Seals: nitrile nbr typical ; ptfe back up
    • Use: connect ; disconnect hydraulic lines quickly
    Regular price From £348.06
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    • Order by 3pm for Next Day Delivery
  • QUILL SHAFT ADAPTOR KIT FOR MERCEDES; G230-16/G330-12; NO AQUATARDER
    Regular price £314.72
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    QUILL SHAFT ADAPTOR KIT FOR MERCEDES; G230-16/G330-12; NO AQUATARDER

    Key Features

    • Gearbox compatibility: Mercedes G230-16 and G330-12 (no retarder)
    • Purpose: intermediate quill drive between gearbox and rear PTO
    • Use with: ABER PTOs for these gearboxes (see ABER Mercedes PTO matrix)
    • Mounting position: rear of gearbox (jackshaft area)
    • Notes: version for gearboxes without Aquatarder/Intarder
    Regular price £314.72
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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.