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Hydraulic Steering Unit with Valve for Heavy Machinery

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101S-5/101S-5T/101S-5TE(BPBS5T, BPBS5TE) series load sensing steering control units adopt pipe mounting type, which can be used with DYXL, YXL type priority valve.
101S-5/101S-5T/101S-5TE series load sensing steering control units' shape, internal structure, performance same as Dafoss OSPC***LS(OLS), M+S HKUS***/5T, Eaton 401-5***, Sinjin D/S***E series.
Price: $ 1000
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  • 101(S)-5T

  • Blince


Overview


The 101S 5T Hydrostatic Directions Orbitrol Steering Unit with Valve is a precision solution designed for hydrostatic steering systems in heavy machinery, ensuring smooth, responsive control in challenging environments. Engineered with orbitrol technology, this unit combines steering control and flow regulation, ideal for construction, agricultural, and material handling equipment.


Features


Precision Steering Control:

5T load capacity (ISO 6947), providing 360° infinite rotation with steering ratio 15:1, enabling tight turning radii (≤3m) in compact machinery.

Orbitrol valve integration (flow rate 10-60 L/min), ensuring proportional steering response (0.5° resolution) for precise maneuverability.

Rugged Construction:

Cast iron housing (ISO 185) and sintered bronze bearings, enduring vibration (20G, 10-2000Hz) and shock loads (50G, 11ms) in off-road conditions.

Double-seal design (lip seal + O-ring), achieving IP69K protection against high pressure water jets (80 bar, 80°C), suitable for washdown environments.

System Compatibility:

Compatible with open-center and closed-center hydraulic systems, supporting both fixed and variable displacement pumps (pressure range: 100-250 bar).

SAE J518 ports and ISO 6149 shaft connections, simplifying integration with essential steering cylinders (e.g., Parker, Hydac).

Safety Features:

Built-in relief valve (20% overpressure protection) and manual override mechanism, ensuring steering control during pump failure.

Neutral position detection sensor (optional), triggering alerts for loss of hydraulic pressure in safety-critical applications.


Application


Suited for heavy-duty steering systems, the 101S unit is used in:

Agricultural Machinery: Provides precise control for tractors and combine harvesters, with dust-resistant coatings (ISO 12103-1 Level 2) for field use.

Material Handling Vehicles: Steers forklifts and reach stackers in warehouses, with low backlash (≤1°) for accurate load positioning.

Marine Vessels: Controls steering in workboats and tugboats, with corrosion-resistant nickel-plated components (500 hours salt spray test).


FAQ


Q: What is the minimum steering effort?

A: ≤5 N·m at 150 bar input pressure, ensuring operator comfort in continuous use.

Q: Can it be used with electric power steering?

A: Yes, compatible with electro-hydraulic steering systems, supporting 0-5V/4-20mA control signals.

Q: What is the maintenance interval?

A: Recommended oil change every 2000 hours or annually, with filter replacement (ISO 4406 16/14/11).


油口螺纹 Ports Threads
代码
Code
P、T、A、B油口
Ports P,T,A,B
连接螺纹C
Column Mounting
C
连接螺纹V
Column Mounting
V
LS油口
Post LS
LL、EL油口
Ports LL,EL
A M20×1.5  M10 M12 M12×1.5
B M20×1.5O-ring M12×1.5 O-ring
C M18×1.5 M12×1.5
D M18×1.5 O-ring M12×1.5 O-ring
E G1/2 M10×1 G1/4 M10×1
U G1/2 O-ring G1/4 O-ring M10×1O-ring
M 3/4-16UNF O-ring M12 7/16-20UNF O-ring
F  3/8-16 UNC 3/8-24 UNF
I  M10 M10
N  M10×1.25
H Φ18.5  M10 M10 M12×1.5


101S-5/101S-5T/101S-5TE(BPBS5T, BPBS5TE) series load sensing steering control units adopt pipe mounting type, which can be used with DYXL, YXL type priority valve.
101S-5/101S-5T/101S-5TE series load sensing steering control units' shape, internal structure, performance same as Dafoss OSPC***LS(OLS), M+S HKUS***/5T, Eaton 401-5***, Sinjin D/S***E series.


Parameters Type 101-5T(TX)-***-*, 101S-5(T)(TE)(L)(E)-***-**-*
Displacement (mL/r)
Max.input speed (rpm)
Max.input pressure (Mpa)
Relef valve pressure setting (Mpa)
Shock valves pressure setting (Mpa)
Max.cont.back pressure (Mpa)
Weight (kg)
Dimension (mm)
50






100








17.5







06, 07, 08, 10, 12, 14, 15, 16, 17.5







12, 13, 14, 16, 18, 20, 21, 22, 23.5








2.5
5.75
130
63
5.81
132
80
5.89
134
100
5.93
137
125
6.1
140
160
6.3
145
200
6.5
150
250
6.73
156
280

75
6.91
161
315
7.1
166
400
7.5
176
If you have any questions, please contact our customer service. During the purchase process, we can meet all your needs.
For hydraulic equipment, please look for Blince!

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