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Rotary Power
XJ40 catalogue

XJ40 catalogue

Product catalog summary

About Us
Rotary Power is a company with over 50 years of experience in designing and manufacturing hydraulic motors and pumps. They operate from facilities in England and India, focusing on lean manufacturing and continuous improvement, emphasizing customer partnerships and employee development through training programs.

XJ Range
The XJ range includes hydraulic motors with displacements from 260 to 5,010 cc/rev. Key features are radial piston operation, modular design, two-speed options, and high load capacity, suitable for industrial and marine applications.

Product Features
The motors offer specific displacement options with corresponding torque, speed, and power ratings. They operate at a maximum continuous pressure of 350 bar and can handle up to 450 bar for short durations. They are compatible with various fluids and have specific operating temperature and viscosity ranges.

Quick Selection Diagram
This diagram assists in determining the appropriate cam size based on torque and speed requirements, showing limits for maximum and minimum displacement.

No Load Pressure Drop & Volumetric Efficiency
Graphs illustrate the pressure drop across the motor and volumetric efficiency at different speeds and pressures, indicating performance characteristics.

Motor Order Code
The order code system allows customization of the motor's features, including displacement, output shaft, and hydraulic connections.

Torque Unit Options
Single and two-speed options are available, with specifications for rotor spline and hydraulic connections. The torque unit can include a parking brake with a holding torque of 21 kNm.

Shaft Motor Options
Details on single-speed shaft motors with spline, including dimensions and mounting specifications.

Additional Features
Options include parking brakes, direction of shaft rotation, hydraulic connections, and speed sensors. The document also covers torque output, power envelopes, and calculations for specific applications.

Specifications
The document details the specifications of the Rotary Power XJ40 motor, including the standard wheel motor output shaft, option Q. It provides theoretical calculations for rotary power and new life expectancy based on speed and life hours. The XJ40 multi-disc parking brake is designed for static situations with XJ40 motors, featuring a modular design and hydraulic release ports.

Parking Brake
The XJ40 parking brake is a fail-safe, spring-applied, hydraulic release brake with a static capacity of 21 kNm when new, reducing to 16.1 - 18.3 kNm after ten dynamic uses. It requires a minimum pressure of 20 bar to release and has a volume capacity of 1,200 cc to fill and 300 cc to release.

Hydraulic Connections
Outlines the hydraulic connections for power supply, drain, speed change, flushing, and parking brake, with specifications for different housing options.

Direction of Shaft Rotation
The motor's starting direction is determined by the flow to port A, with options for single and two-speed motors. Correct starting direction is crucial for optimal performance.

Performance Graphs
Graphs illustrate torque output, starting torque, and power envelope for single and two-speed motors, plotted for maximum displacement using ISO46 fluid at 50°C.

Speed Sensor
The speed sensor provides a square wave signal for motor speed calculation, with specifications for supply voltage, current consumption, and signal output.

Calculations and Conversions
Formulas for calculating output torque, flow, and power are provided, along with conversion factors for various units.

Contact Information
Contact details for Rotary Power offices in Germany, India, the UK, and the USA are included.

Notes
The document includes a disclaimer about the illustrative nature of the information and the intellectual property rights of Rotary Power Ltd.

Catalog excerpts

Rotary Power specialises in the design, development and manufacture of hydraulic motors and pumps. With a history dating back over 50 years, we understand the exacting and demanding requirements of today’s hydraulic applications. Operating from 18,000 sq. m. of purpose built manufacturing facilities, based in the North East of England and Bangalore, India, we continue to invest in the latest CNC machinery, automation and testing facilities. We have a clear focus on continuous improvement in lean cellular manufacturing. These facilities, alongside our European and US operations, offer sales, service...

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The XJ range of hydraulic motors offer displacements from 260 to 5,010 cc/rev. The XJ05 is the smallest of the range with displacements from 260 to 565 cc/rev, complemented by the larger XJ20 and XJ40 motors extending the displacement range to 2,505 and 5,010 cc/rev. The XJ motor has a range of features and options designed to suit your specific application: • • • • • • • • Radial piston, multi-stroke operation Modular design Two speed options Parking brake options Freewheel capability Multiple mounting arrangements 350 bar continuous pressure Fast delivery options The motor is designed with...

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FIRST DISPLACEMENT Displacement option SECOND DISPLACEMENT Nominal displacement (cc/rev) *Maximum values should only be applied for a small portion of the duty cycle. Weight of motor without oil Sizes are listed in mm, inches shown in brackets 4

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QUICK SELECTION DIAGRAM Based on your torque and speed requirements, the diagram below can be used to help determine which cam size best suits your application. Shown for both maximum displacement (1D) and minimum displacement (2D), the diagram outlines the limits of the motor based on its continuous power rating. 50 60 70 80 Maximum Available Speed (rpm) Maximum Available Torque (lbf.ft) Maximum Available Torque (Nm)

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NO LOAD PRESSURE DROP Pressure Drop Across Motor (psi) Pressure Drop Across Motor (bar) VOLUMETRIC EFFICIENCY Volumetric Efficiency (%) All performance graphs plotted for maximum displacement (5,010 cc/rev) using ISO46 fluid at 50°C. 6

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TORQUE UNIT SINGLE SPEED OPTION 30° (For models shown below) (TYP) Option Rated holding torque C Other spline options available, contact us for more information. See page 20 for hydraulic connection options. 28 1.10 31.75 1.25 BOTH 31.75 1.25 PORTS BOTH PORTS = 66.68 2.63 66.68 2.63 = = = BOTH PORTS BOTH PORTS

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TORQUE UNIT TWO SPEED OPTION Option Rated holding torque 172 6.77 = 31.75 1.25 31.75 1.25 = = = BOTH PORTS BOTH PORTS Other spline options available, contact us15for more information. 0.59 12 0.47 189 See page 20 for hydraulic connection options.7.44 (For models shown below)

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(For models shown below) Option Rated holding torque C (SPLINE 164 kg [362 lb] without brake LENGTH) 385 15.16 PCD 18 OFF MOUNTING HOLES See page 20 for hydraulic connection options. = 31.75 1.25 = BOTH 1.25 = = 31.75 1.2531.75PORTS = = BOTH PORTS PORTS BOTH 80 3.15 (SPLINE 80 3.15 LENGTH) (SPLINE LENGTH) 18 OFF MOUNTING HOLES 22 18 OFF MOUNTING HOLES CENTRE TAPPING DS M12 DIN332 CENTRE TAPPING TAPPING CENTRE DS M12 DIN332 DIN332 DS M12 = 66.68 2.63 = = = 66.68 2.63 BOTH PORTS BOTH PORTS SHAFT MOTOR SINGLE SPEED WITH SPLINE

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SHAFT MOTOR TWO SPEED WITH SPLINE 356 14.00 (For models shown below) Option Rated holding torque See page 20 for hydraulic connection options. 381 14.98 CENTRE CENTRE TAPPING TAPPING 385 385 15.16 PCD 15.16 PCD CENTRE TAPPING DS DS M12 DIN332M12 DIN332 385 15.16 PCD DS M12 DIN332 18 OFF HOLES 22 18 OFF MOUNTING MOUNTING HOLES 22 18 OFF MOUNTING HOLES 22 80 3.15 80 3.15 (SPLINE (SPLINE LENGTH) LENGTH) = 31.75 1.25= 31.75 1.25 = = = 31.75 PORTS BOTH 1.25 = BOTH PORTS BOTH PORTS = 66.68 2.63 = = = 66.68 2.63 BOTH PORTS BOTH PORTS (SPLINE LENGTH)

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SHAFT MOTOR KEYED OUTPUT OUTPUT OPTIONS - XJ20 HOUSING 140 5.51 90 3.54 XJ40 HOUSING - KEYED OUTPUT A 25 0.98 NOTE: ALL DIMENSIONS BEYOND FACE A ARE AS PER MAIN DRAWING NOTE: TORQUE UNIT BEYOND FACE B IS AS PER MAIN DRAWINGS NOTE: TORQUE UNIT BEYOND FACE B IS AS PER MAIN DRAWINGS

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SHAFT MOTOR PERMISSIBLE DYNAMIC AND STATIC RADIAL LOAD Axial Position from Shaft End (in) -2.0 0.0 2.0 Maximum Permissible Radial Load (kN) Maximum Permissible Radial Load (lbf) -50 0 50 Axial Position from Shaft End (mm) Static Radial Load Dynamic Radial Load SHAFT MOTOR L10 LIFE AT 150 BAR, 35 RPM -5.9 Axial Position from End of Shaft (in) -2.0 0.0 2.0 Maximum Permissible Radial Load (kN) Maximum Permissible Radial Load (lbf) -50 0 50 Axial Position from End of Shaft (mm) 2000 hours plotted speed (rpm) x plotted life (hours) desired speed (rpm) Contact us for alternative cycle duties. All data...

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WHEEL MOTOR SINGLE SPEED OPTION (For models shown below) A 28 1.10 Option Rated holding torque C M22 x 1.5p wheel studs with nuts fitted M22 x 1.5p wheel studs (standard) See page 20 for hydraulic connection options. 12° (TYP) Option Output fittings BOTH PORTS = 31.75 = 31.75 1.25 = 1.25 = BOTH PORTS PORTS BOTH 440 17.32 PCD CENTRE TAPPING 484 19.06484 19.06 440 17.32440 17.32 PCD PCD DS M12 DIN332 16 OFF MOUNTING CENTRE CENTRE TAPPING TAPPING HOLES 10 OFF DIN332 DS M12 DIN332 WHEEL STUDS M22x1.5p MOUNTING22.5 0.89 DS M12 16 OFF 16 OFF MOUNTING HOLES 10 OFF WHEEL STUDS 10 OFF WHEEL STUDS M22x1.5p...

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WHEEL MOTOR TWO SPEED OPTION (For models shown below) A Option Output fittings Ø24 through holes M22 x 1.5p tapped holes M22 x 1.5p wheel studs with nuts fitted See page 20 for hydraulic connection options. M22 x 1.5p wheel studs (standard) = 31.75 = 31.75 1.25 = 1.25 = = 31.75 1.25 = BOTH BOTH PORTS PORTS BOTH PORTS 12° (TYP) 440 17.32 PCD PCD 440 17.32 484 19.06 19.06 484 440 17.32 PCD 484 19.06 16 OFF 16 OFF MOUNTING MOUNTING CENTRE TAPPING CENTRE TAPPING 16 OFF 440 PCD 440 17.32 17.32 HOLES HOLES MOUNTING PCD DS M12DS M12 DIN332 DIN332 CENTRE TAPPING HOLES 440 17.32 PCD DS M12 DIN332 10 OFF...

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WHEEL MOTOR PERMISSIBLE DYNAMIC AND STATIC RADIAL LOAD Axial Position from Wheel Flange (in) -7.9 Maximum Permissible Radial Loads (kN) Maximum Permissible Radial Loads (lbf) -100 0 100 Axial Position from Wheel Flange (mm) Dynamic Radial Load Static Radial Load WHEEL MOTOR L10 LIFE AT 150 BAR, 42.5 RPM -7.9 Axial Position from Wheel Flange (in) Maximum Permissible Radial Loads (kN) Axial Position from Wheel Flange (mm) 1000 hours plotted speed (rpm) x plotted life (hours) desired speed (rpm) Contact us for alternative cycle duties. All data is based on the standard wheel motor output shaft,...

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All Rotary Power catalogs and technical brochures

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