T1P general specifications.............................................................................................................................................................4
Technical data T1P 069/089..........................................................................................................................................................4
Bearing life T1P 069/089................................................................................................................................................................ 6
Charge pump flow and power curves, 17 cm³................................................................................................................. 8
Charge pump flow and power curves 24 cm³.................................................................................................................. 8
Model Code T1P 069/089
Control options
Electrical Displacement Control (EDC)................................................................................................................................... 11
EDC data for T1P....................................................................................................................................................................... 11
Control response.......................................................................................................................................................................12
EDC response time T1P...........................................................................................................................................................13
Manual Displacement Control (MDC) ....................................................................................................................................14
MDC general information......................................................................................................................................................15
Control response.......................................................................................................................................................................15
MDC response time T1P.........................................................................................................................................................16
Case gauge port M14.............................................................................................................................................................. 17
Manual Over Ride (MOR) for T1.................................................................................................................................................18
Control-Cut-Off valve (CCO) for T1P........................................................................................................................................18
CCO solenoid data for T1P.....................................................................................................................................................19
Brake gauge port with MDC................................................................................................................................................. 19
Dimensions T1P 069 with EDC.................................................................................................................................................. 29
Dimensions T1P 069 with EDC.................................................................................................................................................. 30
Dimensions T1P 069 with EDC.................................................................................................................................................. 31
Dimensions T1P 089 with EDC.................................................................................................................................................. 32
Dimensions T1P 089 with EDC.................................................................................................................................................. 33
Dimensions T1P 089 with EDC.................................................................................................................................................. 34
Dimensions T1P with MDC......................................................................................................................................................... 35
Controls
T1P 069/089 Electric Displacement Control (EDC) with MOR, option A5 (24 V)..................................................... 38
T1P 069/089 Manual Displacement Control (MDC), option M1....................................................................................39
T1P 069/089 Manual Displacement Control (MDC) with NSS and CCO, option M6..............................................40
Danfoss | May 2016L1404561 | BC00000342en-US0201 | 3
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Technical specifications
For definitions of the following specifications, see H1 Axial Piston Pumps, Basic Information11062168,
chapter Operating parameters.
T1P general specifications
Design
Direction of rotation
Pipe connections
Recommended installation
position
Auxiliary cavity pressure
Technical data T1P 069/089
Axial piston pump of cradle swashplate design with variable displacement.
Clockwise / counterclockwise
Main pressure ports: ISO split flange boss
Remaining ports: SAE straight thread O-ring boss
Pump installation position is discretionary, however the recommended control position is on the top or at the side
with the top position preferred. If the pump is installed with the control at the bottom, flushing flow must be
provided through port M14 located on the EDC or MDC control.
Vertical input shaft installation is acceptable. If input shaft is at the top 1 bar case pressure must be maintained
during operation.
The housing must always be filled with hydraulic fluid. Recommended mounting for a multiple pump stack is to
arrange the highest power flow towards the input source.
Consult Danfoss Power Solutions for nonconformance to these guidelines.
Will be inlet pressure with internal charge pump, see Operating parameters T1P 069/089 on page 5.
Will be case pressure with external charge supply. Please verify mating pump shaft seal capability.
FeatureSize 069Size 089
Displacement
Flow at rated (continuous) speed
Torque at maximum displacement
(theoretical)
Mass moment of inertia of rotating
components
Mass [weight] dry without charge pump or
auxiliary mounting flange
Oil volume
Mounting flange
Input spline shaft
Auxiliary mounting flange
with metric fasteners,
Shaft outer diameter and splines
Suction port
Main port configuration
Case drain ports L2, L4
Other ports
Customer interface threads
3
69.2 cm
[4.22 in3]
243 l/min
[53.5 US gal/min]
1.1 N•m/bar
[672 lbf•in/1000 psi]
0.0077 kg•m
[0.0057 slug•ft2]
56 kg [123 lb]62 kg [137 lb]
2 l [0.5 US gal]2.6 l [0.67 US gal]
ISO 3019-1 flange 127-4 (SAE C)
21T, pitch = 16/32 per ANSI b92.1b Class 6e, with thread M10
23T, pitch = 16/32 per ANSI b92.1b Class 6e, with thread M10
23T, pitch = 16/32 with thread M10 and flange
ISO 3019-1, flange 82 - 2, outer Ø 16 mm - 4 (SAE A, 9 teeth)
ISO 3019-1, flange 82 - 2, outer Ø 19 mm - 4 (SAE A, 11 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 22 mm - 4 (SAE B, 13 teeth)
ISO 3019-1, flange 101 - 2, outer Ø 25 mm - 4 (SAE B-B, 15 teeth)
Port ISO 11926-1 – 1 5∕8 -12 (SAE O-ring boss)
Ø25.4 - 450 bar split flange boss per ISO 6162, M12x1.75
Danfoss | May 2016L1404561 | BC00000342en-US0201 | 5
Recommended range
Rated
Maximum intermittent
°C [°F]
1)
5 [42]
7 [49]
12 – 80 [66 – 370]
1600 [7500]
-40 [-40]
60 – 85 [140 – 185]
104 [220]
115 [240]
Re =
Me
L
P003 318E
L
270° Re
Re
Me
180° Re
90° Re
0° Re
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Technical specifications
Filtration, cleanliness level and βx-ratio (recommended minimum)
Cleanliness per ISO 4406
Efficiency βx (charge pressure filtration)
Efficiency βx (suction and return line filtration)
Recommended inlet screen mesh size
External radial shaft loads
The pumps are designed with bearings that can accept some external radial loads. The external radial
shaft load limits are a function of the load position and orientation, and the operating conditions of the
unit. External radial shaft loads impact lifetime. For lifetime calculations please contact Danfoss Power
Solutions representative.
The maximum allowable radial load (Re) is based on the maximum external moment (Me) and the
distance (L) from the mounting flange to the load. It may be determined using the following formula:
Radial load position
22/18/13
β
= 75 (β10 ≥ 10)
15-20
β
= 75 (β10 ≥ 2)
35-45
100 – 125 µm
Me = shaft moment
L = flange distance
Re = external force to the shaft
Thrust loads should be avoided. Contact factory in the event thrust loads are anticipated.
Bearing life T1P 069/089
Maximum external shaft load based on shaft deflection
External radial momentUnitSize 069Size 089
M
e
N•m [lbf•in]109 [965]118 [1044]
All external shaft loads affect bearing life. In applications with external shaft loads, minimize the impact
by positioning the load at 0° or 180° as shown in the figure. Danfoss recommends clamp-type couplings
for applications with radial shaft loads.
Contact your Danfoss representative for an evaluation of unit bearing life if you have continuously
applied external loads exceeding 25 % of the maximum allowable radial load (Re) or the pump
swashplate is positioned on one side of center all or most of the time.
For transit mixer application use the biggest charge pump which is available for particular size or contact
your Danfoss representative for application assistance if your application includes any of these
conditions.
AA
C
3
DH
3
NK
4
2
K
4
2
LN
N
N
2 4
A BDEFGHJKMNS TVWXY
T1 P
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Model Code T1P 069/089
Displacement
069
089
A – Rotation
L
R
B – Product version
A
D – Control
A5
M1
M6
69.2 cm3 [4.22 in3]
89.2 cm3 [5.44 in3]
Left hand (counter clockwise)
Right hand (clockwise)
Revision code
Electric Displacement Control (EDC), 24V, Deutsch connector, with Manual override (MOR)
Manual Displacement Control (MDC)
Manual Displacement Control (MDC) with 24V, CCO and Neutral Start Switch, Deutsch Connector
F – Orifices (mm)
C3
No orifice
E – Displacement limiters
N
None
G – Endcap options (Twin port Code 62 Metric 4-Bolt flange)
D6
Endcap for suction filtration
H – Mounting flange
H
ISO 3019-1, 4-Bolt flange SAE C
J – Input shaft
A5
A6
A7
23T 16/32, with thread M10, with flange
21T 16/32 per ANSI b92.1b Class 6e, with thread M10
23T 16/32 per ANSI b92.1b Class 6e, with thread M10
The Electrical Displacement Control (EDC) consists of a pair of proportional solenoids on each side of a
three-position, four-way porting spool. The proportional solenoid applies a force input to the spool,
which ports hydraulic pressure to either side of a double acting servo piston. Differential pressure across
the servo piston rotates the swashplate, changing the pump‘s displacement from full displacement in
one direction to full displacement in the opposite direction.
Under some circumstances, such as contamination, the control spool could stick and cause the pump to
stay at some displacement. A serviceable 125 μm screen is located in the supply line immediately before
the control porting spool.
PWM signal required for optimum control performance.
@ 20 °C [68 °F]
@ 80 °C [176 °F]
Range
Frequency (preferred)
IEC 60 529
DIN 40 050, part 9
920 mA
14.20 Ω
17.52 Ω
140 mH
70-200 Hz
*
100 Hz
IP 67
IP 69K with mating connector
Pump output flow direction vs. control signal
Shaft rotationCWCCW
Coil energized
Port Aoutininout
Port Binoutoutin
Servo port pressurizedM4M5M4M5
*
For coil location see Installation drawings.
*
C1C2C1C2
Control response
Controls are available with optional control passage orifices to assist in matching the rate of swashplate
response to the application requirements (e.g. in the event of electrical failure). The time required for the
pump output flow to change from zero to full flow (acceleration) or full flow to zero (deceleration) is a net
function of spool porting, orifices, and charge pressure. A swashplate response table is available for each
frame indicating available swashplate response times. Testing should be conducted to verify the proper
orifice selection for the desired response.
T1 pumps are limited in mechanical orificing combinations. Mechanical servo orifices are to be used only
for fail-safe return to neutral in the event of an electrical failure.
Typical response times shown below at the following conditions:
∆p
Viscosity and temperature
Charge pressure
Speed
Danfoss | May 2016L1404561 | BC00000342en-US0201 | 13
P301 749
"0"
Lever rotation
"A"
Displacement
100 %
a
-a
100 %
"B"
-b
-d
b
c
d
-c
P301 752
P005 701
M14
M5
M4
M3
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Control options
Manual Displacement Control (MDC)
MDC principle
An MDC is a Manual proportional Displacement Control (MDC). The MDC consists of a handle on top of a
rotary input shaft. The shaft provides an eccentric connection to a feedback link. This link is connected on
its one end with a porting spool. On its other end the link is connected the pumps swashplate.
This design provides a travel feedback without spring. When turning the shaft the spool moves thus
providing hydraulic pressure to either side of a double acting servo piston of the pump.
Differential pressure across the servo piston rotates the swash plate, changing the pump’s displacement.
Simultaneously the swashplate movement is fed back to the control spool providing proportionality
between shaft rotation on the control and swashplate rotation.
The MDC changes the pump displacement between no flow and full flow into opposite directions. Under
some circumstances, such as contamination, the control spool could stick and cause the pump to stay at
some displacement.
A serviceable 125 μm screen is located in the supply line immediately before the control porting spool.
The MDC is sealed by means of a static O-ring between the actuation system and the control block. Its
shaft is sealed by means of a special O-ring which is applied for low friction. The special O-ring is
protected from dust, water and aggressive liquids or gases by means of a special lip seal.
Manual Displacement Control
Pump displacement vs. control lever rotation
MDC schematic diagram
Where:
Deadband on B side – a = 3° ±1°
Maximum pump stroke – b = 30° +2/-1°
Required customer end stop – c = 36° ±3°
Internal end stop – d = 40°
Volumetric efficiencies of the system will have impacts on
the start and end input commands.
MDC torque
Torque required to move handle to maximum displacement
Torque required to hold handle at given displacement
Maximum allowable input torque
1.4 N•m [12.39 lbf•in ]
0.6 N•m [5.31 lbf•in]
20 N•m [177 lbf•in]
C
CCW
CW
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Control options
MDC general information
In difference to other controls the MDC provides a mechanical deadband. This is required to overcome
the tolerances in the mechanical actuation.
The MDC contains an internal end stop to prevent over travel. The restoring moment is appropriate for
turning the MDC input shaft back to neutral only. Any linkages or cables may prevent the MDC from
returning to neutral.
The MDC is designed for a maximum case pressure of 5 bar and a rated case pressure of 3 bar. If the case
pressure exceeds 5 bar there is a risk of an insufficient restoring moment. In addition a high case pressure
can cause the NSS to indicate that the control is not in neutral. High case pressure may cause excessive
wear.
Customers can apply their own handle design but they must care about a robust clamping connection
between their handle and the control shaft and avoid overload of the shaft.
Customers can connect two MDC’s on a tandem unit in such a way that the actuation force will be
transferred from the pilot control to the second control but the kinematic of the linkages must ensure
that either control shaft is protected from torque overload.
To avoid an overload of the MDC, customers must install any support to limit the setting range of the
Bowden cable.
Caution
Using the internal spring force on the input shaft is not an appropriate way to return the customer
connection linkage to neutral.
Shaft rotation MDC
MDC shaft rotation data
Pump shaft rotation
MDC shaft rotationCWCCWCWCCW
Port Ain (low)out (high)out (high)in (low)
Port Bout (high)in (low)in (low)out (high)
Servo port high pressureM5M4M5M4
*
As seen from shaft side.
*
Clock Wise (CW)Counter Clock Wise (CCW)
Control response
Controls are available with optional control passage orifices to assist in matching the rate of swashplate
response to the application requirements (e.g. in the event of electrical failure). The time required for the
pump output flow to change from zero to full flow (acceleration) or full flow to zero (deceleration) is a net
function of spool porting, orifices, and charge pressure. A swashplate response table is available for each
frame indicating available swashplate response times. Testing should be conducted to verify the proper
orifice selection for the desired response.
Danfoss | May 2016L1404561 | BC00000342en-US0201 | 15
P005 702
M14
M5
M4
M3
12
P003 480
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Control options
T1 pumps are limited in mechanical orificing combinations. Mechanical servo orifices are to be used only
for fail-safe return to neutral in the event of an electrical failure.
Typical response times shown below at the following conditions:
∆p
Viscosity and temperature
Charge pressure
Speed
MDC response time T1P
250 bar [3626 psi]
30 mm²/s [141 SUS] and 50 °C [122 °F]
20 bar [290 psi]
1800 min-1 (rpm)
Stroking direction (No orifice)Size 069
Neutral to full flow0.4 s
Full flow to neutral0.5 s
Size 089
0.5 s
0.6 s
Neutral Start Switch (NSS)
The Neutral Start Switch (NSS) contains an electrical switch that provides a signal of whether the control
is in neutral. The signal in neutral is Normally Closed (NC).
Neutral Start Switch schematic
Neutral Start Switch data
Max. continuous current with switching
Max. continuous current without switching
Max. voltage
Electrical protection class
Danfoss | May 2016L1404561 | BC00000342en-US0201 | 17
P003 204
Feedback from
Swash plate
PTF00B
M14
C2
C1
F00A
P003 205E
W
Technical Information
T1P Transit Mixer Axial Piston Pump, Size 069/089
Control options
Manual Over Ride (MOR) for T1
All controls are available with a Manual Over Ride (MOR) either standard or as an option for temporary
actuation of the control to aid in diagnostics.
Unintended MOR operation will cause the pump to go into stroke. The vehicle or device must always be
in a „safe“ condition (i.e. vehicle lifted off the ground) when using the MOR function.
The MOR plunger has a 4 mm diameter and must be manually depressed to be engaged. Depressing the
plunger mechanically moves the control spool which allows the pump to go on stroke.
The MOR should be engaged anticipating a full stroke response from the pump.
Refer to control flow table for the relationship of solenoid to direction of flow.
Manual OverRide (MOR)
An o-ring seal is used to seal the MOR plunger where initial actuation of the function will require a force
of 45 N to engage the plunger. Additional actuations typically require less force to engage the MOR
plunger. Proportional control of the pump using the MOR should not be expected.
Control-Cut-Off valve (CCO) for T1P
The T1 pump offers an optional control cut off valve integrated into the control. This valve will block
charge pressure to the control, allowing the servo springs to de-stroke both pumps regardless of the
pump´s primary control input. There is also a hydraulic logic port, X7, which can be used to control other
machine functions, such as spring applied pressure release brakes. The pressure at X7 is controlled by the
control cut off solenoid. The X7 port would remain plugged if not needed.
In the normal (de-energized) state of the solenoid charge flow is prevented from reaching the controls. At
the same time the control passages and the X7 logic port are connected and drained to the pump case.
The pump will remain in neutral, or return to neutral, independent of the control input signal. Return to
neutral time will be dependent on oil viscosity, pump speed, swashplate angle, and system pressure.
When the solenoid is energized, charge flow and pressure is allowed to reach the pump control. The X7
logic port will also be connected to charge pressure and flow.
The solenoid control is intended to be independent of the primary pump control making the control cut
off an override control feature. It is however recommended that the control logic of the CCO valve be
maintained such that the primary pump control signal is also disabled whenever the CCO valve is deenergized. Other control logic conditions may also be considered.
All MDC controls are available with a CCO valve. The CCO-valve is available with 24 V solenoid only. The
response time of the unit depends on the control type and the used control orifices.
The location of the brake port see the chapter Installation drawings on page 27.
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000
Danfoss
Power Solutions Trading
(Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: +86 21 3418 5200
Products we offer:
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www.comatrol.com
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www.schwarzmuellerinverter.com
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www.turollaocg.com
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www.hydro-gear.com
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www.daikin-sauer-danfoss.com
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Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and
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that excel in the harsh operating conditions of the mobile off-highway market. Building on
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