• Atlas Crane Control Lever No 3201167
    Regular price £62.46
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    Atlas Crane Control Lever No 3201167

    Key Features

    • Component: OEM control lever assembly
    • Use: precise operation of Atlas loader crane functions
    • Construction: ergonomic handle with robust linkage
    • Fitment: compatible with Atlas crane models using 3201167 lever
    • Category: crane spares replacement part
    Regular price £62.46
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  • Washer - Approved Hydraulics Limited
    Regular price £3.64
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    Washer

    Key Features

    • Type: flat machine washer
    • Function: distributes clamping load under nut/bolt head
    • Material: zinc plated or stainless steel depending on spec
    • Use: link pins; baseplates; adaptors
    • Note: match to bolt grade and diameter
    Regular price £3.64
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  • BR2 Top Bush 35mm dia - Approved Hydraulics Limited
    Regular price £18.73
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    BR3 Bush (40mm dia)

    Key Features

    • Component: replaceable bush for BR3 link
    • Bore size: 40 mm
    • Function: supports lower eye pin and spreads load
    • Material: hardened steel or bronze
    • Service: grease via nipples; check wear limits
    Regular price £18.73
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  • GR30 internal springs
    Regular price £4.38
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    GR30 internal springs

    Key Features

    • Component: internal centering/return springs for GR30
    • Function: stabilises rotation and valve position
    • Service: replace in sets during overhaul
    • Use: GR30 pendant rotator maintenance
    • Note: refer to service drawing for spring seating
    Regular price £4.38
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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.

  • Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair) - Approved Hydraulics Limited
    Regular price £53.40
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    Baltrotors Steel Sleeve - 35mm Bush Assembly Complete (Pair)

    Key Features

    • Component: sleeve/bush kit ID 35 mm
    • Supply: pair for both sides
    • Use: renew link or head bores for 35 mm pins
    • Material: hardened steel sleeves
    • Benefit: reduces play and vibration
    Regular price £53.40
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  • Nut M30 x 1.5P - Approved Hydraulics Limited
    Regular price £9.66
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    Nut M30 x 1.5P

    Key Features

    • Thread: M30 x 1.5 metric fine
    • Type: high-strength lock nut
    • Use: link pin; baseplate and adaptor retention
    • Material: alloy steel with protective finish
    • Note: torque to OEM spec; use threadlocker as required
    Regular price £9.66
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  • Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair) - Approved Hydraulics Limited
    Regular price £60.35
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    Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair)

    Key Features

    • Component: sleeve/bush kit ID 25 mm
    • Supply: pair for both sides of joint
    • Material: hardened steel for wear resistance
    • Use: crane head/link refurb
    • Service: grease on install
    Regular price £60.35
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  • Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair) - Approved Hydraulics Limited
    Regular price £61.70
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    Baltrotors Steel Sleeve - 40mm Bush Assembly Complete (Pair)

    Key Features

    • Component: sleeve/bush kit with 40 mm ID
    • Supply: matched pair
    • Material: hardened steel sleeves and bushes
    • Use: link and rotator joint refurbishment
    • Benefit: restores correct tolerances
    Regular price £61.70
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  • Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair) - Approved Hydraulics Limited
    Regular price £21.54
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    BR1 - Baltrotor Steel Sleeve - 20mm Bush Assy Complete (Pair)

    Key Features

    • Component: sleeve/bush pair for BR1 link upper eye
    • Bore size: 20 mm
    • Supply: complete pair for both sides
    • Material: hardened steel sleeves with bushes
    • Use: renew wear surfaces and restore fit
    Regular price £21.54
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  • Pin 45mm Dia
    Regular price £211.80
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    Pin 45mm Dia

    Key Features

    • Component: hardened pin 45 mm diameter
    • Use: link or grapple pivot pin
    • Finish: corrosion protected surface
    • Retention: grooves/threads per variant
    • Service: grease path must remain open
    Regular price £211.80
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  • 3/4bsp M/F Extended Nipple
    Regular price £26.15
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    3/4bsp M/F Extended Nipple

    Key Features

    • Thread: 3/4" BSP male to 3/4" BSP female
    • Length: extended body for clearance
    • Material: plated steel hydraulic fitting
    • Use: offsets hoses away from rotating structures
    • Rating: typical 350–420 bar service class
    Regular price £26.15
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  • Baltrotors Steel Sleeve - 25mm Bush Assembly Complete (Pair) - Approved Hydraulics Limited
    Regular price £53.40
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    Baltrotor Steel Sleeve - 30mm Bush Assembly Complete (Pair)

    Key Features

    • Component: sleeve/bush kit with 30 mm ID
    • Supply: matched pair for both sides of link or head
    • Use: restores correct joint clearance
    • Material: hardened steel sleeves
    • Benefit: improved service life and tighter fit
    Regular price £53.40
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    • Delivery to UK & Ireland
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  • BR2 Top Bush 35mm dia - Approved Hydraulics Limited
    Regular price £33.94
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    BR3 Bush (35mm dia)

    Key Features

    • Component: replaceable bush for BR3 link eye
    • Bore size: 35 mm
    • Function: supports grapple pin and spreads load
    • Material: hardened steel or bronze
    • Service: grease and inspect wear periodically
    Regular price £33.94
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  • GR16S flange pin sleeving - Approved Hydraulics Limited
    Regular price £50.41
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    GR16S flange pin sleeving

    Key Features

    • Adaptor: sleeve for GR16S flange pin interface
    • Function: adjusts pin/bore fit to spec
    • Material: hardened steel sleeve
    • Use: service replacement during head rebuild
    • Note: verify ID/OD before assembly
    Regular price £50.41
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  • Out of Stock
    CPR8 3/4" Base Adaptor Plate - Approved Hydraulics Limited
    Regular price £150.06
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    CPR8 3/4" Base Adaptor Plate

    Key Features

    • Type: base adaptor plate for CPR8 with 3/4" porting
    • Function: mates rotator to grapple/tool frame
    • Material: machined steel with locating pilot
    • Pattern: CPR8 bolt circle
    • Note: verify gasket and fastener torque
    Regular price £150.06
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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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  • 80L Control Valve Inlet Section -S
    Regular price £88.58
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    80L Control Valve Inlet Section -S

    Key Features

    • Valve size: 80 l/min
    • Section: inlet section -s
    • Features: integral relief ; power beyond port
    • Use: start of sectional valve stack
    • Application: hydraulic system component
    Regular price £88.58
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  • Spacer 20mm x 4mm tube 25mm long - Approved Hydraulics Limited
    Regular price £4.27
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    Spacer 20mm x 4mm tube 25mm long

    Key Features

    • Part number: FEM141001
    • Spacer form: Tube spacer for mechanical spacing
    • Tube size: 20 mm x 4 mm tube
    • Length: 25 mm
    • Function: Provides stand off distance and alignment in assemblies
    • Typical use: FEMAC attachment and flail component mounting
    Regular price £4.27
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  • 28 Bar Servo pressure reducer for IT128 blocks
    Regular price £164.69
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    28 Bar Servo pressure reducer for IT128 blocks

    Key Features

    • Type: servo pressure reducer for IT128 blocks
    • Set pressure: 28 bar class
    • Porting: internal pilot gallery with dedicated ports
    • Function: regulates pilot pressure to servo controlled valves
    • Use: stable proportional control in IT128 retrofit systems
    Regular price £164.69
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  • 80L TIE ROD KIT (4 Rods / kit) 3 Bank M8x1.25  216 mm long
    Regular price £16.85
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    80L TIE ROD KIT (4 Rods / kit) 3 Bank M8x1.25 216 mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 3 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 216 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £16.85
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  • 80L TIE ROD KIT (4 Rods / kit) 6 Bank  M8x1.25 339mm long
    Regular price £18.53
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    80L TIE ROD KIT (4 Rods / kit) 6 Bank M8x1.25 339mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 6 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 339 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £18.53
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  • 80L TIE ROD KIT (4 Rods / kit) 8  Bank M8x1.25 421mm long
    Regular price £20.20
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    80L TIE ROD KIT (4 Rods / kit) 8 Bank M8x1.25 421mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 8 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 421 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £20.20
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  • 240L TIE ROD KIT (4 Rods / kit) 3 Bank M12x1.75  361 mm long
    Regular price £37.38
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    240L TIE ROD KIT (4 Rods / kit) 3 Bank M12x1.75 361 mm long

    Key Features

    • Valve family: 240l sectional valve
    • Configuration: 3 bank
    • Rods per kit: 4
    • Thread: m12x1.75
    • Rod length: 361 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 240l family
    • Variants: 1 ; 2 ; 3 bank options
    Regular price £37.38
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  • Out of Stock
    80L Control Valve Tank Section (Type TC) (Old ref 30085660) - Approved Hydraulics Limited
    Regular price £57.85
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    100L GS Tank Section

    Key Features

    • Function: tank return section for GS sectional valve
    • Series: 100l family
    • Purpose: returns oil from valve stack to reservoir
    • Mounting: fits in sectional stack via tie rods
    • Typical use: end section to complete return path
    • Compatibility: 100l GS sectional components
    Regular price £57.85
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Newly Added Products for Professional Hydraulic Applications

Discover quality newly added products 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.