• Baltrotors GR623X Rotator - Approved Hydraulics

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    GR623X Rotator

    Key Features

    • Type: GR623 with arched hose guard (X)
    • Static axial load: +60 kN; dynamic +30 kN (series)
    • Torque at 25 MPa: ~2400 Nm
    • Recommended oil flow: ~28 l/min
    • Upper connection: fork 80.5 mm; 35 mm pin (family)

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  • Baltrotors GRS10 Rotators - Approved Hydraulics

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    GRS10 Rotators

    Key Features

    • Type: grapple-saw rotator (GRS series) with extra channels
    • Static axial load: +100 kN; dynamic +60 kN (series)
    • Torque at 25 MPa: ~2500 Nm
    • Recommended oil flow: ~25 l/min
    • Upper connection: fork 80.5 mm; 35 mm pin (family)

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  • Baltrotors GRS12S Rotators - Approved Hydraulics

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    GRS12S Rotators

    Key Features

    • Type: grapple-saw rotator (GRS) for 12 t class
    • Static axial load: +120 kN; dynamic +60 kN
    • Torque at 25 MPa: ~2900 Nm
    • Recommended oil flow: ~35 l/min
    • Upper connection: fork 100.5 mm; 45 mm pin (family)

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  • Baltrotors HR10 SM Rotator - Approved Hydraulics

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    HR10 SM Rotator

    Key Features

    • Type: Baltrotors harvester rotator (SM series)
    • Application: forestry harvesters and processing heads
    • Mounting: rigid/separate mount configuration
    • Benefit: high durability for heavy cutting cycles
    • Support: spares and seal kits available

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  • 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 HR12 SM Rotator - Approved Hydraulics

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    HR12 SM Rotator

    Key Features

    • Type: Baltrotors harvester rotator (SM series)
    • Application: forestry harvester heads and processing
    • Mounting: rigid/separate mount configuration
    • Feature: compact body with high torque output
    • Support: HR12 seal kits available

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  • Out of Stock
    Cylinder Seal Kit for Intermercato TG 12, 16, 19, 16 PRO, 16 EG - Approved Hydraulics Limited
    Regular price £196.86
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    HR12SM + HR 16SM + HR12US/16U Rotator Seal Kit

    Key Features

    • Scope: service kit for harvester rotators HR12/HR16
    • Rotators covered: HR12SM; HR16SM; HR12US; HR16U
    • Use: restore pressure integrity on harvester heads
    • Contents: full dynamic seal set; O-rings; rings; wipers
    • Note: install with clean mineral oil and lube seals
    Regular price £196.86
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  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £286.80
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    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 £286.80
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  • Link Lower(ex MTR104.010-02)
    Regular price £210.06
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    Link Lower(ex MTR104.010-02)

    Key Features

    • Component: lower link assembly (legacy code MTR104.010-02)
    • Function: connects rotator lower interface to tool
    • Construction: welded/machined steel with bush seats
    • Use: service replacement for worn or damaged link
    • Note: confirm bush sizes and pin diameters before fit
    Regular price £210.06
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  • Locking Screw
    Regular price £21.50
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    Locking Screw

    Key Features

    • Function: locking ; set screw
    • Use: fix fittings ; accessories on grab head
    • Material: high tensile steel
    • Thread: metric per variant
    • Application: hydraulic system component
    Regular price £21.50
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  • Nut M30 x 1.5P
    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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  • Pin

    Pin
    Regular price £61.78
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    Pin

    Key Features

    • Type: steel pin
    • Use: crane or attachment joint
    • Note: select diameter ; length to suit
    • Application: hydraulic system component
    • Application: hydraulic system component
    Regular price £61.78
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  • Pin (35 dia,)
    Regular price £174.06
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    Pin (35 dia,)

    Key Features

    • Type: hardened steel pin
    • Diameter: 35 mm
    • Use: link ; joint ; hinge on crane/rotator
    • Finish: zinc plated or oiled
    • Application: hydraulic system component
    Regular price £174.06
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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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  • Restrictor 0.7mm 3/8 - 3/8 Male / Male
    Regular price £6.06
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    Restrictor 0.7mm 3/8 - 3/8 Male / Male

    Key Features

    • Type: inline flow restrictor fitting
    • Orifice: 0.7 mm calibrated orifice
    • Thread: 3/8" BSP male to 3/8" BSP male
    • Function: limits cylinder/rotator speed; reduces shock
    • Material: plated steel body for hydraulic service
    Regular price £6.06
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  • Rotator Hose Guards
    Regular price From £36.06
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    Rotator Hose Guards

    Key Features

    • Function: heavy duty arched protector for rotator hoses
    • Compatibility: sized to specific GR/GRS/GR..DB models
    • Mounting: bolts to upper stator plate
    • Benefit: deflects debris; reduces hose snag/fatigue
    • Material: steel fabrication; serviceable components
    Regular price From £36.06
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  • Washer
    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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Baltrotors

Approved Hydraulics Ltd are proud to be the sole UK agent for Baltrotors Hydraulic Rotators. Baltrotors offer one of the largest ranges in hydraulic rotators available in the market place, covering, pendant rotators, rigid rotators, harvester head rotators, industrial rotators and saw grapple rotators along with a complete range of standard and braked links.

They are also the only manufacture to offer a 2 year warranty as standard across the complete “GR” range of hydraulic rotators.

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.