4WMM 6 M5X/
Manufacturer: Bosch Rexroth
Material #: R900479042
Model : 4WMM 6 M5X/
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 4WMM 6 M5X/ (R900479042) is a high-performance directional spool valve designed for controlling the start, stop, and direction of fluid flow within hydraulic systems. This model belongs to the WM series of valves which are mechanically actuated by manual operation. The 4WMM 6 M5X/ features a robust housing, a hand lever for actuation, control spool, and one or two return springs ensuring the control spool returns to its central or starting position when not engaged.
Equipped with a detent mechanism, this particular valve allows each spool position to be securely locked in place depending on the type of operation required. This feature provides stable operation in various applications where consistent positioning is essential. Additionally, the valve is available in 2-way or 3-way versions with porting patterns that adhere to DIN form A without locating hole or ISO with locating hole standards.
The throttle insert is an important aspect of this model as it ensures smooth performance under different operating conditions by regulating flows that may exceed the valve’s performance limit during switching processes. This insert is specifically placed in channel P of the directional valve for optimal functionality.
For precise monitoring and control, the 4WMM 6 M5X/ can be fitted with inductive position switches and proximity sensors that operate without contact for enhanced durability and reliability. The valve has a size designation and belongs to component series X which signifies its technical specifications such as maximum operating pressure (bar) and maximum flow rate (l/min). These specifications are crucial for ensuring compatibility with various hydraulic systems and applications where precise fluid control is necessary.
$808.00 USD
More are expected on April 21, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 21, 2025 when ordered in
This product is eligible for factory repair.
Type WM.. valves are mechanical, manually actuated directional spool valves. They control the start, stop and direction of a flow. Directional valves basically consist of housing (1), one type of actuation (2) (hand lever), control spool (3) and one or two return springs (4). In de-energized state, the return springs (4) maintain the control spool (3) in central or starting position - if the rotary knob is actuated with a detent. The control spool (3) is moved to the desired spool position by means of the type of actuation (2).
Detent
Directional valves with rotary knob are generally designed with detent. Directional valves with hand lever are optionally available as 2 or 3 position valves with detent. Directional valves with roller plunger are generally designed without detent. If types of actuation with detent are used, each spool position can be locked, depending on the valve type.
Throttle insert
The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve. It is inserted in channel P of the directional valve.
Type 4WMM 6 D5X/F
Type 4WM. 6 ..5X/..B..
general
|
Size |
6 | ||
|
Weight (approx.) |
kg |
1.4 | |
|
Installation position |
any | ||
|
Ambient temperature range |
NBR seals |
°C |
-20 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
|
Operating force |
without tank pressure, with/without detent |
N |
20 |
|
at a tank pressure of 150 bar 1) |
N |
30 | |
| 1) | at 150 bar |
hydraulic
|
Size |
6 | ||
|
Maximum operating pressure |
Port P |
bar |
315 |
|
Port A |
bar |
315 | |
|
Port B |
bar |
315 | |
|
Port T 1) |
bar |
160 | |
|
Maximum flow |
l/min |
60 | |
|
Flow cross-section (spool position 0) |
Symbol Q |
approx. 6 % of nominal cross-section | |
|
Symbol W |
approx. 3 % of nominal cross-section | ||
|
Hydraulic fluid |
see table | ||
|
Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
|
Viscosity range |
mm²/s |
2.8 … 500 | |
|
Maximum admissible degree of contamination of the hydraulic fluid 2) |
Class 20/18/15 according to ISO 4406 (c) | ||
| 1) | With symbols A or B, port T must be used as leakage oil connection if the operating pressure exceeds the admissible tank pressure. |
| 2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
|
Mineral oils |
HL, HLP, HLPD, HVLP, HVLPD |
NBR, FKM |
DIN 51524 |
|
|
Bio-degradable |
Insoluble in water |
HETG |
NBR, FKM |
VDMA 24568 |
|
HEES |
FKM |
|||
|
Soluble in water |
HEPG |
FKM |
VDMA 24568 |
|
|
Containing water |
Water-free |
HFDU, HFDR |
FKM |
ISO 12922 |
|
Containing water |
HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) |
NBR, HNBR |
ISO 12922 |
|
|
Important information on hydraulic fluids! For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature.Flame-resistant – containing water: Maximum pressure differential per control edge 50 bar. Pressure pre-loading at the tank port >20% of the pressure differential; otherwise, increased cavitation Life cycle compared to operation with mineral oil HL, HLP 50 to 100% |
||||
Inductive position switch type QM: electrical connection
The electric connection is realized via a 4-pole mating connector (separate order) with connection thread M12 x 1.
electrical
|
Connection voltage (DC voltage) |
V |
24 | ||
|
Voltage tolerance (connection voltage) |
+30 %/-15 % | |||
|
Admissible residual ripple |
% |
≤ 10 | ||
|
Max. load capacity |
mA |
400 | ||
|
Switching outputs 
|
PNP transistor outputs, load between switching outputs and GND | |||
|
Pinout 
|
1 |
V |
24 | |
|
2, 4 |
Switching output |
mA |
400 | |
|
3 |
Earthing (GND) |
V |
0 | |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
|
7 |
Symbol “R” in spool position "b" (A → B) |
|
8 |
Symbols “G” and “T” in central position (P → T) |
|
Symbols |
Direction of flow |
|||
|
P-A |
P-B |
A-T |
B-T |
|
|
A |
3 |
3 |
– |
– |
|
B |
3 |
3 |
– |
– |
|
C |
1 |
1 |
3 |
1 |
|
D |
5 |
5 |
3 |
3 |
|
E |
3 |
3 |
1 |
1 |
|
F |
1 |
3 |
1 |
1 |
|
G |
6 |
6 |
9 |
9 |
|
H |
2 |
4 |
2 |
2 |
|
J |
1 |
1 |
2 |
1 |
|
L |
3 |
3 |
4 |
9 |
|
M |
2 |
4 |
3 |
3 |
|
P |
3 |
1 |
1 |
1 |
|
Q |
1 |
1 |
2 |
1 |
|
R |
5 |
5 |
4 |
– |
|
T |
10 |
10 |
9 |
9 |
|
U |
3 |
3 |
9 |
4 |
|
V |
1 |
2 |
1 |
1 |
|
W |
1 |
1 |
2 |
2 |
|
Y |
5 |
5 |
3 |
3 |
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
Notice!
The specified switching power limits are valid for use with two directions of flow (e. g. from P to A and simultaneous return flow from B to T).
Due to the flow forces acting within the valves, the admissible switching power limit may be considerably lower with only one direction of flow
(e. g. from P to A while port B is blocked)!
In such use cases, please consult us!
Version "WMM" - spring return
|
Characteristic curve |
Symbol |
|
1 |
E,E1–,M,J,L,Q,U,W, C,D,Y,G,H,R |
|
2 |
A,B |
|
3 |
V
|
|
4 |
F,P |
|
5 |
T |
Version "WMM" - with detent
|
Characteristic curve |
Symbol |
|
1 |
E1–,M,H,C,D,Y |
|
2 |
E,J,Q,L,U,W |
|
3 |
A,B |
|
4 |
G,T |
|
5 |
F |
|
6 |
V |
|
7 |
P |
|
8 |
R |
|
9 |
T |
| 1) Example: Symbol E with spool position "a" → ordering code ..EA.. Symbol E with spool position “b" → ordering code ..EB.. | |
| 3) Symbol E1-: P → A/B pre-opening Caution in conjunction with differential cylinders due to pressure intensification! |
Notices!
Representation according to DIN ISO 1219-1.
Hydraulic interim positions are shown by dashes.
|
Type of actuation |
|
Hand lever “WMM” |
|
|
|
|
|
|
|
|
|
|
4/2 directional seat valve – with detent
Dimensions in mm
Dimensions in mm
|
1 |
Name plate |
|
2 |
Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
3 |
Identical seal rings for ports A, B, P, and T |
|
5 |
Valve with 2 spool positions |
|
6 |
Valve with 3 spool positions |
|
7 |
Spool position “a” |
|
8 |
Spool position “b” |
|
9 |
Spool position “0”, “a” and “b” (a and b for valves with 2 spool positions) |
Subplates according to data sheet 45052 (separate order)
(without locating hole)
G 341/01 (G1/4)
G 342/01 (G3/8)
G 502/01 (G1/2)
(with locating hole)
G 341/60 (G1/4)
G 342/60 (G3/8)
G 502/60 (G1/2)
G 341/12 (SAE-6)1)
G 342/12 (SAE-8)1)
G 502/12 (SAE-10)1)
1) On request
Valve mounting screws (separate order)
Clamping length 42 mm:
4 hexagon socket head cap screws, metric
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 7 Nm ± 10 %,
Material no. R913000064
or
4 hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9 (self procurement)
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 8.1 Nm ± 10 %
4 hexagon socket head cap screws UNC
10-24 UNC x 2″ ASTM-A574
(friction coefficient μtotal = 0.19 to 0.24);
tightening torque MA = 11 Nm ± 15 %,
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 8 Nm ± 10 %,
material no. R978800693
Spool position monitoring
Inductive position switch type QM, 4WMM
Dimensions in mm
| 1) | For dimensions, see valve dimensions |
3/2 directional seat valve – with detent
Dimensions in mm
|
1 |
Cover not available for type WMRZ |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
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