• Approved Hydraulics 2 Pin Swinging Link Hitch - Approved Hydraulics

    POA

    • All Items Guaranteed
    • Delivery to UK & Ireland

    2 Pin Swinging Link Hitch

    Key Features

    • Design: two-pin swinging link for quick hitch machines
    • Benefit: lies flat with pins accessible from cab for quick pick-up
    • Function: retains swinging capability with a quick coupler fitted
    • Fitment: sized/manufactured to customer dimensions on request
    • Use: forestry crane; excavator; loader links and grabs

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Approved Hydraulics 2 Pin Hitch with Swinging Link - Approved Hydraulics

    POA

    • All Items Guaranteed
    • Delivery to UK & Ireland

    2 Pin Hitch with Swinging Link

    Key Features

    • Design: two-pin hitch with integrated swinging link
    • Function: enables swinging attachments with quick hitch devices
    • Benefit: floor-lay design presents pins for easy hookup
    • Manufacture: built to order to suit customer pin centres and widths
    • Use: interface for rotator links; grabs; grapples

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR1 Link

    Key Features

    • Type: link (no brake)
    • Max load: 5.5 t
    • Upper connection: eye (60/70/80 mm widths; 20–45 mm pins)
    • Lower connection: fork 25 mm pin
    • Service: grease every 8 working hours
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR1A Link - Approved Hydraulics
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR1A Link

    Key Features

    • Type: link (no brake) with alternative dimensions
    • Upper connection: eye; sizes 60/70/80 mm
    • Lower connection: fork 30 mm pin
    • Max load: 5.5 t (family)
    • Service: torque locking nut to spec; periodic greasing
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 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 BR10 Link - Approved Hydraulics

    POA

    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR10 Link

    Key Features

    • Type: single brake swing‑damper link
    • Max load: 5.5 t
    • Upper connection: eye 60/70/80 mm
    • Lower connection: fork 25 mm pin
    • Brake set: nut torque 60–160 Nm for brake force

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Baltrotors BR2 Link - Approved Hydraulics
    Regular price £367.26
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR2 Link

    Key Features

    • Type: link (no brake) heavy class
    • Max load: 10 t
    • Upper connection: eye 80 mm; 30–45 mm pin options
    • Lower connection: eye 35 mm pin
    • Service: grease through nipples; 120 Nm nut torque
    Regular price £367.26
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR3 Link - Approved Hydraulics
    Regular price £512.05
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR3 Link

    Key Features

    • Type: link (no brake) for 12–16 t rotators
    • Max load: 16 t
    • Upper connection: eye; 80 or 100 mm width options
    • Lower connection: fork; 30–45 mm pin options
    • Service: grease at 8‑hour intervals
    Regular price £512.05
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR4 Link - Approved Hydraulics
    Regular price £374.82
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR4 Link

    Key Features

    • Type: single swing‑damper link
    • Max load: 5.5 t
    • Upper connection: fork 71 mm; 30 mm pin
    • Lower connection: fork 25 mm pin
    • Service: grease regularly; 120 Nm pin‑nut torque
    Regular price £374.82
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR4-A Link - Approved Hydraulics
    Regular price £379.60
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR4-A Link

    Key Features

    • Type: single swing‑damper link (A variant)
    • Max load: 5.5 t
    • Upper connection: fork 71 mm; 30 mm pin
    • Lower connection: fork 30 mm pin
    • Service: grease regularly; 120 Nm pin‑nut torque
    Regular price £379.60
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    Link 25 mm to 30mm crane pin

    Key Features

    • Adaptor: sleeve converts 25 mm link to 30 mm crane pin
    • Use: compatibility when crane head pin is larger
    • Material: hardened steel for wear resistance
    • Fit: slip-in with retaining features per design
    • Note: check clearance and lubrication path
    Regular price £249.66
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £252.06
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR1 Link 70mm Wide with 20mm Top Bush

    Key Features

    • Link type: BR1 without brake; 70 mm upper width
    • Upper pin: 20 mm
    • Lower connection: eye/fork to suit grapple pin
    • Use: light/medium duty rotator suspension
    • Service: grease at 8-hour intervals
    Regular price £252.06
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £252.06
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

    BR1 Link 70mm Wide with 25mm Top Bush

    Key Features

    • Type: br1 link
    • Width: 70 mm
    • Top bush: 25 mm id
    • Use: crane link ; rotator head
    • Application: hydraulic system component
    Regular price £252.06
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

Links

Approved Hydraulics supply all types of hydraulic rotator links.

Most units available from stock for next day delivery!

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.