Danfoss TMTHW User guide
MAKING MODERN LIVING POSSIBLE
Technical Information
Orbital Motor
TMTHW
powersolutions.danfoss.com
Technical Information TMTHW Orbital Motors
Revision history Table of revisions
Date Changed Rev
November 2015 Code number corrected 0101
April 2015 Converted to Danfoss layout BA
August 2013 First version AA
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Technical Information
TMTHW Orbital Motors
Contents
A wide range of Orbital Motors
Characteristic, features and application areas of Orbital Motors....................................................................................4
Characteristic features of Danfoss Orbital Motors.......................................................................................................... 4
Technical features of Danfoss Orbital Motor.....................................................................................................................4
The Danfoss Orbital Motors are used in the following application areas:..............................................................5
Survey of literature with technical data on Danfoss Orbital Motors..............................................................................5
Introduction the Orbital Motor Series
T-Series – The Highest Torque.....................................................................................................................................................6
O-Series – The Flexible Choice.....................................................................................................................................................6
V-Series – The Core Solution........................................................................................................................................................ 6
TMTHW features................................................................................................................................................................................6
Speed, torque and output
TMTHW speed, torque and output............................................................................................................................................ 7
Versions and code numbers
TMTHW version and code numbers.......................................................................................................................................... 8
Technical data
Technical data for TMTHW............................................................................................................................................................9
Maximum permissible shaft seal pressure.............................................................................................................................. 9
Pressure drop in motor................................................................................................................................................................ 10
Direction of shaft ...........................................................................................................................................................................11
Permissible shaft load for TMTHW...........................................................................................................................................11
Function diagrams
TMTHW 315......................................................................................................................................................................................12
TMTHW 400......................................................................................................................................................................................13
TMTHW 500......................................................................................................................................................................................13
TMTHW 630......................................................................................................................................................................................14
TMTHW 800......................................................................................................................................................................................14
Technical data
Port thread versions......................................................................................................................................................................15
Manifold............................................................................................................................................................................................ 15
Dimensions
Wheel flange-spigot diameter Ø 180 mm - BC Ø 210 mm..............................................................................................16
Wheel flange-spigot diameter Ø 223.9 mm - BC Ø 265 mm.......................................................................................... 17
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Technical Information
TMTHW Orbital Motors
A wide range of Orbital Motors
Characteristic, features and application areas of Orbital Motors
Danfoss is a world leader within production of low speed orbital motors with high torque. We can offer
more than 3,000 different orbital motors, categorised in types, variants and sizes (including different shaft
versions).
The motors vary in size (rated displacement) from 8 cm³ [0.50 in³] to 800 cm³ [48.9 in³] per revolution.
Speeds range up to approximate 2,500 min-1 (rpm) for the smallest type and up to approximate 600 min
(rpm) for the largest type.
Maximum operating torques vary from 13 N•m [115 lbf•in] to 2,700 N•m [24,000 lbf•in] (peak) and
maximum outputs are from 2.0 kW [2.7 hp] to 70 kW [95 hp].
Characteristic features of Danfoss Orbital Motors
Smooth running over the entire speed range
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Constant operating torque over a wide speed range
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High starting torque
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High return pressure without the use of drain line (High pressure shaft seal)
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High efficiency
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Long life under extreme operating conditions
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Robust and compact design
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High radial and axial bearing capacity
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For applications in both open and closed loop hydraulic systems
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Suitable for a wide variety of hydraulics fluids
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Technical features of Danfoss Orbital Motor
The programme is characterised by technical features appealing to a large number of applications and a
part of the programme is characterised by motors that can be adapted to a given application. Adaptions
comprise the following variants among others:
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Technical Information
TMTHW Orbital Motors
A wide range of Orbital Motors
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The Danfoss Orbital Motors are used in the following application areas:
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Motors with corrosion resistant parts
Wheel motors with recessed mounting flange
OMP, OMR- motors with needle bearing
OMR motor in low leakage version
OMR motors in a super low leakage version
Short motors without bearings
Ultra short motors
Motors with integrated positive holding brake
Motors with integrated negative holding brake
Motors with integrated flushing valve
Motors with speed sensor
Motors with tacho connection
All motors are available with black finish paint
Construction equipment
Agricultural equipment
Material handling & Lifting equipment
Forestry equipment
Lawn and turf equipment
Special purpose
Machine tools and stationary equipment
Marine equipment
Survey of literature with technical data on Danfoss Orbital Motors
Detailed data on all Danfoss Orbital Motors can be found in our motor catalogue, which is divided into
more individual subcatalogues:
General information on Danfoss Orbital Motors: function, use, selection of orbital motor, hydraulic
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systems, etc.
Technical data on small motors: OML and OMM
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Technical data on medium sized motors: OMP, OMR, OMH
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Technical data on medium sized motors: DH and DS
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Technical data on medium sized motors: OMEW
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Technical data on medium sized motors: VMP
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Technical data on medium sized motors: VMR
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Technical data on large motors: OMS, OMT and OMV
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Technical data on large motors: TMK
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Technical data on large motors: TMT
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Technical data on large motors: TMTHW
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Technical data on large motors: TMVW
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A general survey brochure on Danfoss Orbital Motors gives a quick motor reference based on power,
torque, speed and capabilities.
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Technical Information
TMTHW Orbital Motors
Introduction the Orbital Motor Series
By introducing the TMTHW, Danfoss is introducing the first Orbital Motor of a new Series. In order to meet
the demands for motors that have the right duty cycle and efficiency capabilities for a given function.
Danfoss now has 3 Orbital Motor Series:
T-Series – The Highest Torque
Leading performance with a long lifetime makes light work of the heaviest duties. Offering pressure
capability up to 350 bar [5076 psi] and high starting torque, the T-Series is the energy-efficient choice for
the toughest working environments.
O-Series – The Flexible Choice
The O-Series is flexible beyond compare. Delivering premium power across the board, these motors
cover small to large, medium to heavy-duty needs with pressure capability up to 275 bar [3990 psi].
Robust, reliable and designed to fulfill the latest emissions standards.
V-Series – The Core Solution
The V-Series is your quality benchmark in the medium duty market. Based on proven technology, these
reliable motors will reduce your overall system costs while adding value to your machine. Perfect for
many tasks.
TMTHW features
Robust bearing design
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Not sensitive towards return pressure
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Extra patented sealing design
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High pressure rating
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Excellent performance / weight
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Designed based on decades of experience with orbital motor-technology
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