• ABER PTO Mounting Kit
    Regular price £63.50
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    ABER PTO Mounting Kit

    Key Features

    • Kit type: PTO mounting hardware
    • ABER code: PTOMK10AL00
    • Purpose: secure PTO body to gearbox interface
    • Use: provides correct alignment and fastening during installation
    • Application: truck PTO installations across ABER range
    Regular price £63.50
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  • ABER QUILL SHAFT ADAPTER KIT FOR VOLVO AT2412C - Approved Hydraulics Limited
    Regular price £164.08
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    ABER QUILL SHAFT ADAPTER KIT FOR VOLVO AT2412C

    Key Features

    • Gearbox compatibility: Volvo AT2412C / ATO2412C
    • ABER reference: VK5006 quill shaft kit
    • Approx length: ~225 mm (VK5006 class)
    • Purpose: couples gearbox jackshaft to rear/side PTO
    • Benefit: ensures correct spline engagement & alignment
    • Application: heavy‑duty truck hydraulic drivetrains
    Regular price £164.08
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  • Out of Stock
    ABER QUILL SHAFT ADAPTER KIT FOR ZF 12AS-1010TO - Approved Hydraulics Limited
    Regular price £259.46
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    ABER QUILL SHAFT ADAPTER KIT FOR ZF 12AS-1010TO

    Key Features

    • Gearbox compatibility: ZF 12AS‑1010 TO (AS‑Tronic)
    • Purpose: quill shaft adapter for rear PTO drive
    • Design: matched to ABER PTO references for 12AS‑1010TO
    • Application: heavy‑duty commercial vehicles (MAN/DAF etc.)
    • Notes: check gearbox variant (TO/TD) before ordering
    Regular price £259.46
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  • ABER QUILL SHAFT ADAPTER KIT FOR ZF 12AS-1420TD/TO
    Regular price £259.46
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    ABER QUILL SHAFT ADAPTER KIT FOR ZF 12AS-1420TD/TO

    Key Features

    • Gearbox compatibility: ZF 12AS‑1420 TD/TO (AS‑Tronic)
    • Purpose: quill shaft adapter for rear PTO drive
    • Construction: spline‑to‑spline intermediate shaft with bearing support
    • Application: rear PTO installations on mid‑range trucks
    • Cross‑reference: OMFB 09301000020 (equivalent family)
    Regular price £259.46
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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.

  • ABER QUILL SHAFT ADAPTER KIT FOR ZF 16S181  Z=14
    Regular price £135.74
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    ABER QUILL SHAFT ADAPTER KIT FOR ZF 16S181 Z=14

    Key Features

    • Gearbox compatibility: ZF 16S181
    • Spline: Z = 14 (14‑tooth)
    • ABER reference: VK4001 family
    • Purpose: intermediate quill drive for rear‑mount PTO
    • Notes: verify length vs 16S151/221 variants before purchase
    Regular price £135.74
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  • ABER QUILL SHAFT ADAPTER KIT FOR ZF16-AS-2200; 12-AS-1800; W/- W/O IT
    Regular price £225.17
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    ABER QUILL SHAFT ADAPTER KIT FOR ZF16-AS-2200; 12-AS-1800; W/- W/O IT

    Key Features

    • Gearbox compatibility: ZF 12‑AS‑1800 and 16‑AS‑2200
    • Variants: for gearboxes with or without Intarder (IT)
    • Purpose: intermediate drive between gearbox jackshaft and PTO
    • Benefit: ensures correct spline engagement and alignment
    • ABER references: VK40xx family matched to ABER PTOs
    Regular price £225.17
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  • ABER QUILL SHAFT ADAPTER KIT MERCEDES G210;G211;G240
    Regular price £215.69
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    ABER QUILL SHAFT ADAPTER KIT MERCEDES G210;G211;G240

    Key Features

    • Gearbox compatibility: Mercedes G210 / G211 / G240
    • Purpose: intermediate quill drive between gearbox and PTO
    • ABER reference: VK8005 adapter kit (used with TF4002 series)
    • Application: rear‑mount PTO installations
    • Benefit: correct alignment and torque transfer
    Regular price £215.69
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  • ABER QUILL SHAFT ADAPTER KIT VOLVO R1700
    Regular price £164.08
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    ABER QUILL SHAFT ADAPTER KIT VOLVO R1700

    Key Features

    • Gearbox compatibility: Volvo R1700 family
    • ABER reference: VK5004 quill shaft kit
    • Approx length: L ≈ 256–261 mm (VK5004)
    • Purpose: connects gearbox output to rear‑mount PTO
    • Application: heavy‑duty truck drivetrains (Volvo SR‑VT)
    Regular price £164.08
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  • ABER QUILL SHAFT ADAPTER KIT ZF 12-AS-1800; 16-AS-2200
    Regular price £142.55
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    ABER QUILL SHAFT ADAPTER KIT ZF 12-AS-1800; 16-AS-2200

    Key Features

    • Gearbox compatibility: ZF 12‑AS‑1800 / 16‑AS‑2200 (AS‑Tronic)
    • Variants: with or without Intarder (IT) options
    • Purpose: connect gearbox jackshaft to rear‑mount PTO
    • Benefit: ensures proper spline engagement and durability
    • Notes: matched to ABER PTO references for these gearboxes
    Regular price £142.55
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  • ABER QUILL SHAFT ADAPTER KIT ZF 9-S-109/12,91; 16-S-109/13,31
    Regular price £229.34
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    ABER QUILL SHAFT ADAPTER KIT ZF 9-S-109/12,91; 16-S-109/13,31

    Key Features

    • Gearbox compatibility: ZF 9S‑109 (12.91) and 16S‑109 (13.31)
    • Purpose: quill shaft adapter for rear PTO applications
    • Spline details: compatible with ZF 9S/16S‑109 families
    • Cross‑refs: OMFB quill shaft list for 9S/16S‑109 variants
    • Application: connects gearbox jackshaft to PTO unit
    Regular price £229.34
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  • ABER QUILL SHAFT ADAPTER KIT ZF16-AS-2200IT; 12-AS-1800IT;
    Regular price £208.25
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    ABER QUILL SHAFT ADAPTER KIT ZF16-AS-2200IT; 12-AS-1800IT;

    Key Features

    • Gearbox compatibility: ZF 16‑AS‑2200 IT & 12‑AS‑1800 IT (with Intarder)
    • Purpose: intermediate quill shaft between gearbox and rear PTO
    • Benefit: correct torque transfer and shaft alignment
    • Use with: ABER PTOs specified for IT variants
    • Installation: rear mount near transmission output flange
    Regular price £208.25
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  • ABER Side Mounted Aluminium Oil Tank (200L) - Approved Hydraulics Limited

    POA

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    ABER Side Mounted Aluminium Oil Tank (200L)

    Key Features

    • Capacity: 200 litres
    • Material: aluminium (lightweight, corrosion resistant)
    • Mounting: side-mount with straps/brackets
    • Filtration: filler-breather cap / return filtration options
    • Ports: typical suction 1 1/2" BSP; return 1" BSP
    • Accessories: sight level/temperature gauge options
    • Use: hydraulic reservoir for tipper & truck systems

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Black mechanical component with 'Aber' branding on a white background
    Regular price From £426.06
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    ABER Side Mounting Steel Tank; Long Optical Level; With Oil return Filter

    Key Features

    • Mounting: side mounting with belts/brackets
    • Material: steel construction
    • Oil level: long optical level gauge
    • Filler-breather: cap with integral air filter
    • Return filtration: tank-top return filter (single)
    • Suction port: 1 1/2" BSP (TSB family)
    • Capacity range: ~80–250 litres (TSB series)
    • Construction: ~2 mm plate with robotic welded seams
    Regular price From £426.06
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  • ABER Solenoid Operated Bypass Valve with Relief To Work In Pumps Of 80cc
    Regular price £571.02
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    ABER Solenoid Operated Bypass Valve with Relief To Work In Pumps Of 80cc

    Key Features

    • Model: BPR80H (with relief)
    • Pump size: 80 cc/rotation
    • Solenoid: 24 VDC
    • Pressure class: up to 350 bar (family rating)
    • Function: unloads pump and limits pressure via relief
    • Mounting: bolts to pump end-cap; symmetrical orientation
    • Operation: engage/disengage at no-load (<20 bar)
    Regular price £571.02
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  • ABER Tipping Valves (130 lpm, 350 bar) - Approved Hydraulics Limited
    Regular price £238.26
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    ABER Tipping Valves (130 lpm, 350 bar)

    Key Features

    • Max flow: up to 130 l/min
    • Working pressure: up to 300 bar
    • Relief valve setting: 350 bar
    • Ports: P/C/T 3/4" BSP; pilot 1/8" BSP
    • Control: pneumatic or manual
    • Application: single-acting tipping gear (open circuit, progressive descent)
    • Approx weight: ~5.2 kg
    • Mounting: direct to tank or chassis
    Regular price £238.26
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    • Order by 3pm for Next Day Delivery
  • ABER Variable Displacement Piston Pump 120cc/rot- Right - Approved Hydraulics Limited
    Regular price £2,620.85
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    ABER Variable Displacement Piston Pump 120cc/rot- Right

    Key Features

    • Series: ABER VDP variable displacement axial piston pump
    • Displacement: 120 cc/rotation
    • Rotation: right‑hand (clockwise at shaft view)
    • Max pressure: up to ~410–460 bar (series dependent)
    • Mounting: direct PTO mount (except two‑shaft PTOs without support)
    • Controls/features: adaptable pressure, fast reaction, flow reset
    • Flange/shaft options: DIN 5462 / DIN 5480 / SAE C (2‑ or 4‑bolt)
    • Use: open‑circuit truck hydraulics (tippers, cranes)
    Regular price £2,620.85
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  • ABER VARIABLE DISPLACEMENT PUMP 90cc/rot- Right
    Regular price £2,255.47
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    ABER VARIABLE DISPLACEMENT PUMP 90cc/rot- Right

    Key Features

    • Series: VDP (variable displacement axial piston)
    • Displacement: 90 cc/rot
    • Rotation: right-hand
    • Max application pressure: up to 460 bar
    • Flange/shaft options: DIN 5462 / DIN 5480 / SAE C (2- or 4-bolt)
    • Key functions: adaptable pressure, fast reaction, flow reset
    • Design: high efficiency, low noise, compact
    • Use: truck/mobile hydraulic systems
    Regular price £2,255.47
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  • ABER ZF TRAXON QUILL SHAFT ADAPTOR KIT - Approved Hydraulics Limited
    Regular price £266.90
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    ABER ZF TRAXON QUILL SHAFT ADAPTOR KIT

    Key Features

    • Compatibility: ZF TraXon 12TX/16TX transmissions
    • ABER reference: VK4029 (quill/adaptor kit)
    • Function: couples gearbox output to high‑power PTO
    • Benefit: robust torque transfer and alignment
    • Use: rear/side PTO installations on TraXon gearboxes
    Regular price £266.90
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  • Adapter Kit for 45L Hydra Part Proportional Module - Approved Hydraulics Limited
    Regular price £108.86
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    Adapter Kit for 45L Hydra Part Proportional Module

    Key Features

    • Type: adapter kit for 45l hydra part proportional module
    • Compatibility: hydra part 45l and walvoil sd5 valve families
    • Contents: hydraulic adaptors ; fittings and washers
    • Function: plumbing kit for retrofit servo module pilot and return
    • Use: convert manual valve to proportional remote control
    Regular price £108.86
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  • ADAPTOR EN/ISO /4 Bolts) to PUMP UNI (3 Bolts); With One Ball Bearings - Approved Hydraulics Limited
    Regular price £101.12
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    ADAPTOR EN/ISO /4 Bolts) to PUMP UNI (3 Bolts); With One Ball Bearings

    Key Features

    • Mounting interfaces: PTO EN.ISO 4 bolt to UNI 3 bolt
    • Integrated bearing: one ball bearing
    • Max torque: 315 N.m
    • Max power at 1000 rpm: 33 kW
    • Use case: fit UNI 3 bolt pumps to ISO 4 bolt PTO housings
    • Construction: steel adaptor with precision machining
    • Accessories: studs ; gaskets available in kits
    Regular price £101.12
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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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  • ADMISSION CONNECTOR 1 1/2" PIPE 1 1/2" ELBOW 45º - Approved Hydraulics Limited
    Regular price £50.06
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    ADMISSION CONNECTOR 1 1/2" PIPE 1 1/2" ELBOW 45º

    Key Features

    • Component: pump admission connector
    • Connections: 1 1/2" pipe to 1 1/2" elbow
    • Elbow angle: 45°
    • Intended use: pump inlet/suction side
    • Design: angled elbow aids routing and reduces inlet losses
    • Compatibility: ABER pump suction fittings
    Regular price £50.06
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  • Out of Stock
    ADMISSION CONNECTOR 1 1/2'' PIPE 1 1/2''' ELBOW
    Regular price £37.90
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    ADMISSION CONNECTOR 1 1/2'' PIPE 1 1/2''' ELBOW

    Key Features

    • Connections: 1 1/2" pipe to 1 1/2" elbow
    • Form: elbow connector
    • Intended use: suction/inlet side of hydraulic pumps
    • Design: swept elbow for improved flow routing
    • Compatibility: ABER pump inlets / suction fittings
    Regular price £37.90
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  • Out of Stock
    ADMISSION CONNECTOR 1 1/2'' PIPE 2''' ELBOW>
    Regular price £43.39
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    ADMISSION CONNECTOR 1 1/2'' PIPE 2''' ELBOW>

    Key Features

    • Connections: 1 1/2" pipe to 2" elbow
    • Form: elbow connector (pump admission)
    • Intended use: suction/inlet side of hydraulic pumps
    • Design: smooth internal radius to reduce pressure loss
    • Compatibility: ABER pump inlets / suction fittings
    Regular price £43.39
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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.