• T-CUT30 Replacement Knife - Approved Hydraulics Limited
    Regular price £1,000.07
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    • Delivery to UK & Ireland

    T-CUT30 Replacement Knife

    Key Features

    • Model: T-CUT30
    • Type: replacement knife
    • Material: hardened steel
    • Use: cutting vegetation ; saw style head
    • Notes: replace in matched sets ; observe torque for bolts
    Regular price £1,000.07
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • T-CUT40 Bolt Kit for Replacement Knife - Approved Hydraulics Limited

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    T-CUT40 Bolt Kit for Replacement Knife

    Key Features

    • Model: T-CUT40
    • Type: replacement knife
    • Material: hardened steel
    • Use: cutting vegetation ; saw style head
    • Notes: replace in matched sets ; observe torque for bolts

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T-CUT40 Replacement Knife - Approved Hydraulics Limited
    Regular price £1,372.07
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    • Delivery to UK & Ireland

    T-CUT40 Replacement Knife

    Key Features

    • Model: T-CUT40
    • Type: replacement knife
    • Material: hardened steel
    • Use: cutting vegetation ; saw style head
    • Notes: replace in matched sets ; observe torque for bolts
    Regular price £1,372.07
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • T1 hammer bracket (Pair)
    Regular price £28.86
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    • Delivery to UK & Ireland

    T1 hammer bracket (Pair)

    Key Features

    • Compatibility: t1 flail head
    • Kit: pair
    • Function: retains hammer to rotor lug
    • Material: steel ; heat treated
    • Use: grass ; light scrub applications
    Regular price £28.86
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 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.

  • T1 KF1 Blades - Sold Individually - Approved Hydraulics Limited
    Regular price £9.14
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    • Delivery to UK & Ireland

    T1 KF1 Blades - Sold Individually

    Key Features

    • Compatibility: t1 head
    • Type: kf1 cutting blade
    • Sale: sold individually
    • Use: grass ; hedging
    • Application: hydraulic attachment component
    Regular price £9.14
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • T1 Rev Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T1 Rev Flail Spares

    Key Features

    • Compatibility: t1 rev 1.0-3.0 t excavators
    • Typical items: hammers ; knife sets ; belts ; bearings ; shaft seals
    • Rotor widths: 60 cm ; 70 cm ; 80 cm options
    • Note: verify serial no. ; rotor code before ordering
    • Bearings: double-row spherical rotor bearings available

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T11 Flail Spares - Approved Hydraulics Limited

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    T11 Flail Spares

    Key Features

    • Compatibility: t11 6.0-12.0 t excavator heads
    • Typical items: hammer kits ; belts ; end bearings ; seals ; roller kits
    • Rotor: fr heavy hammer ; fs knife ; df fixed tooth options
    • Note: confirm rotor and head width when ordering
    • Service: oem quality parts supplied

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T3 Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T3 Flail Spares

    Key Features

    • Compatibility: t3 1.5-5.0 t excavator heads
    • Typical items: hammers ; belts ; end bearings ; roller kits ; motor seals
    • Widths: 70 cm ; 90 cm ; 105 cm options
    • Note: spec varies by rotor ; supply p/n for exact match
    • Bearings: double-row spherical rotor bearings available

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T5 Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T5 Flail Spares

    Key Features

    • Compatibility: t5 4.0-6.0 t excavator heads
    • Typical items: hammer kits ; group 3 gear motors 22 ; 27 ; 34 cc ; belts
    • Rotor: helical with austempered hammers
    • Note: confirm rotor and motor code before order
    • Fasteners: hammer bolts ; lock nuts ; bushes supplied as kits

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T7 Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T7 Flail Spares

    Key Features

    • Compatibility: t7 5.0-8.0 t excavator heads
    • Typical items: hammer sets ; belts ; roller kits ; group 3 motors 22 ; 27 ; 34 cc
    • Widths: 105 cm ; 125 cm heads
    • Note: verify rotor code ; motor displacement when ordering
    • Service: oem quality parts and kits available

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T9 (DF & FS) Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T9 (DF & FS) Flail Spares

    Key Features

    • Compatibility: t9 heads with df ; fs rotors
    • Typical items: fixed teeth ; tool holders ; bolts ; belts ; bearings
    • Rotor notes: df fixed-tooth forestry ; fs smooth cut knife
    • Check: match tooth pattern ; holder type to rotor
    • Service: stock replacement wear parts available

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • T9 (FR & MZ) Flail Spares - Approved Hydraulics Limited

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    • Delivery to UK & Ireland

    T9 (FR & MZ) Flail Spares

    Key Features

    • Compatibility: t9 heads with fr ; mz rotors
    • Typical items: hammer kits ; knives ; belts ; bearings ; seals
    • Rotor notes: fr heavy hammer rotor ; mz grass/knife rotor
    • Widths: 105 cm ; 125 cm heads
    • Check: confirm rotor type ; lug spacing before order

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Tamper proof cap M10 - RED color
    Regular price £1.28
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    • Delivery to UK & Ireland

    Tamper proof cap M10 - RED color

    Key Features

    • Type: tamper-proof cap for valve adjusters
    • Thread: M10
    • Colour: red for quick identification
    • Function: prevents unauthorised adjustment
    • Material: durable polymer or plated steel per variant
    Regular price £1.28
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Tamper Proof Cap M20-M22 - RED Color
    Regular price £2.78
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    • Delivery to UK & Ireland

    Tamper Proof Cap M20-M22 - RED Color

    Key Features

    • Type: tamper-proof cap for valve adjusters
    • Thread: M20 interface
    • Colour: red for quick identification
    • Function: prevents unauthorised adjustment and seals setting
    • Material: durable polymer or plated steel per variant
    Regular price £2.78
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Tamper proof cap M8 - RED Color
    Regular price £1.28
    • All Items Guaranteed
    • Delivery to UK & Ireland

    Tamper proof cap M8 - RED Color

    Key Features

    • Type: tamper-proof cap for valve adjusters
    • Thread: M10
    • Colour: red for quick identification
    • Function: prevents unauthorised adjustment
    • Material: durable polymer or plated steel per variant
    Regular price £1.28
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Taper roller bearing (For cone splitter housing)
    Regular price £84.00
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    • Delivery to UK & Ireland

    Taper roller bearing (For cone splitter housing)

    Key Features

    • Type: tapered roller bearing (33116)
    • Support: radial and axial load support for cone splitter spindle
    • Role: stabilises cone splitter housing under high load
    • Design: tapered rollers for efficient load distribution
    • Use: replacement bearing in cone splitter housing assembly
    Regular price £84.00
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TCB Clamshell Buckets

    POA

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    TCB Clamshell Buckets

    Key Features

    • Type: clamshell for digging ; loading
    • Edges: welded hardox cutting edges
    • Guides: double guide bars
    • Cylinder: high pressure with double piston rod seals
    • Valve: pilot operated check valve
    • Mounting: with rotator ; link
    • Applications: construction ; forestry ; recycling

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • TE100REV/T9 Drive Belt - Approved Hydraulics Limited
    Regular price £31.26
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    • Delivery to UK & Ireland

    TE100REV/T9 Drive Belt

    Key Features

    • Compatibility: te100rev ; t9 heads
    • Type: drive belt
    • Notes: replace as set ; tension per manual
    • Use: power transmission from motor to rotor
    • Application: hydraulic attachment component
    Regular price £31.26
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC 3 Phase Electric Motors - 2 Pole, 3000rpm (IE2 High Efficiency) - Approved Hydraulics
    Regular price From £57.17
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    • Delivery to UK & Ireland

    TEC 3 Phase Electric Motors - 2 Pole, 3000rpm (IE2/IE3 High Efficiency)

    Key Features

    • Type: three phase induction motor
    • Speed: 2 pole 3000 rpm nominal at 50 hz
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £57.17
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC 3 Phase Electric Motors - 2 Pole, 3000rpm (IE2 High Efficiency) - Approved Hydraulics
    Regular price From £60.52
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    • Delivery to UK & Ireland

    TEC 3 Phase Electric Motors - 4 Pole - 1500rpm (IE2/IE3 High Efficiency)

    Key Features

    • Type: three phase induction motor
    • Speed: 4 pole 1500 rpm nominal at 50 hz
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £60.52
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC Single Phase Electric Motors - 2 Pole, 3000rpm (CAP START / CAP RUN) - Approved Hydraulics
    Regular price From £95.95
    • All Items Guaranteed
    • Delivery to UK & Ireland

    TEC Single Phase Electric Motors - 2 Pole, 3000rpm (CAP START / CAP RUN)

    Key Features

    • Type: single phase cap start ; cap run induction motor
    • Speed: 2 pole 3000 rpm nominal at 50 hz
    • Starting: high starting torque for heavy loads
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £95.95
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC Single Phase Electric Motors - 2 Pole, 3000rpm, 240vAC (PERMANENT CAP) - Approved Hydraulics
    Regular price From £71.99
    • All Items Guaranteed
    • Delivery to UK & Ireland

    TEC Single Phase Electric Motors - 2 Pole, 3000rpm, 230vAC (PERMANENT CAP)

    Key Features

    • Type: single phase permanent capacitor psc induction motor
    • Speed: 2 pole 3000 rpm nominal at 50 hz
    • Starting: low current ; moderate starting torque
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £71.99
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC Single Phase Electric Motors - 4 Pole, 1500rpm (CAP START / CAP RUN) - Approved Hydraulics
    Regular price From £87.40
    • All Items Guaranteed
    • Delivery to UK & Ireland

    TEC Single Phase Electric Motors - 4 Pole, 1500rpm (CAP START / CAP RUN)

    Key Features

    • Type: single phase cap start ; cap run induction motor
    • Speed: 4 pole 1500 rpm nominal at 50 hz
    • Starting: high starting torque for heavy loads
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £87.40
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • TEC TEC Single Phase Electric Motors - 4 Pole, 1500rpm, 240vAC (PERMANENT CAP) - Approved Hydraulics
    Regular price From £87.58
    • All Items Guaranteed
    • Delivery to UK & Ireland

    TEC Single Phase Electric Motors - 4 Pole, 1500rpm, 230vAC (PERMANENT CAP)

    Key Features

    • Type: single phase cap start ; cap run induction motor
    • Speed: 4 pole 1500 rpm nominal at 50 hz
    • Starting: high starting torque for heavy loads
    • Enclosure: tefc ip55 aluminium frame
    • Insulation: class f with ptc 130°c thermal
    • Duty: s1 continuous ic411 cooling
    • Voltage: 230 ; 400 vac 50 hz three phase or 230 vac single phase per model
    • Mounting: b3 foot ; b5 flange ; b14 face options
    • Standards: iec 60034 ; ie3 or ie2 efficiency classes
    Regular price From £87.58
    • All Items Guaranteed
    • 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.