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Hydraulic
Intelligence
for Industry

Expert-level fault diagnosis, crane diagnostics, system design & knowledge base — purpose-built for marine and offshore hydraulic engineers.

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155 KBOEM manuals and hydraulic references
Design AIPressure, flow, components and BOM
Crane DiagFault logic for marine hydraulic systems
HM
HydroMind AI Advisor
155 KB documents · Real-time analysis
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YOU
A4VG90 case drain pressure is 4.5 bar at full load — what's the cause?
HYDROMIND AI
Root Cause: Case drain pressure >3 bar at full displacement on the A4VG90 indicates worn barrel/valve plate interface allowing internal bypass. Verify with case drain flow measurement at TP-3. Expected: <3 L/min. If flow exceeds 6 L/min, pump overhaul is required.
KB-12 Rexroth A4VG KB-34 Case Drain
155
KB Documents
177
Countries
12
OEM Brands
24/7
AI Availability
Covering equipment from the world's leading OEMs
Liebherr Rexroth Danfoss Parker Eaton NOV MacGregor Sauer-Danfoss SeaTrax Favelle Favco Sun Hydraulics ISO 4413 · DNV
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Diagnose a fault

Start with symptoms, pressure readings, and component model. HydroMind returns test points and likely root causes.

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Investigate crane issues

Use the crane workflow for hoist, luff, slew, brake release, case drain and proportional valve faults.

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Design

Build a hydraulic system

Move from application brief to pressure, flow, fluid, control, safety and BOM recommendations.

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Platform Capabilities

Everything a Hydraulic Engineer Needs

From first-principles fault diagnosis to full system design — powered by 155 OEM manuals, standards and engineering references from Rexroth, Danfoss, Parker, Liebherr & more.

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AI Hydraulic Advisor

Deep fault diagnosis, pressure analysis, component isolation and corrective action — using structured KB retrieval from 155 OEM documents and engineering references across Rexroth, Danfoss, Parker, Eaton, and more.

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Crane Diagnostic Agent

10-state AI diagnostic sequence for offshore cranes — covering Liebherr, MacGregor, NOV, SeaTrax, Favelle Favco. Identifies hydraulic, mechanical and operational fault modes with precision.

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Updated

System Design

12-step guided hydraulic system design — pump/motor sizing, DCV selection, filter & tank sizing, BOM generation and cooler sizing. From requirements to full system specification.

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Knowledge Base

KB1-KB155 covering Rexroth, Danfoss, Parker, Eaton, Liebherr, MacGregor, NOV, SeaTrax, Favelle Favco, standards and HydroMind skill references — vector-searchable, categorised and instantly retrievable via AI.

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How It Works

From Problem to Solution in Minutes

1

Describe Your Problem

Type your fault symptom, equipment model, and operating conditions. The AI understands hydraulic engineering context without needing simplified explanations.

2

AI Searches the KB

HydroMind searches 155 OEM manuals, standards and engineering references, retrieves the most relevant KB documents, and structures a diagnostic response based on circuit paths and component logic.

3

Get Actionable Diagnosis

Receive structured fault analysis — root cause, test points, corrective actions, and KB references — ready for your pre-job preparation or post-job report.

Field Engineers

Trusted by Offshore & Marine Specialists

The crane diagnostic agent walked me through a Liebherr LHBL-D luffing fault step by step. Saved hours of manual searching and gave me the exact test points to check.
RK
R. Kumar
Crane Supervisor · Offshore Platform, North Sea
I used the hydraulic calculator offline during a vessel overhaul — pipe velocity, pump sizing, cylinder force all calculated instantly. The KB search on Danfoss H1 pumps is excellent.
MF
M. Farooq
Marine Mechanical Engineer · Drillship, UAE
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Quick Reference

Hydraulic & Electrical Calculator

METRIC IMPERIAL
Q
Pump Flow Rate
Q = (D × N) / 1000
Displacement D
cc/rev
Speed N
RPM
Flow Rate Q =179.1 L/min
P
Drive Power
P = (p × Q) / 600η
Pressure p
bar
Flow Q
L/min
Power P =85.8 kW
F
Cylinder Force
F = p × A
Pressure p
bar
Bore Ø
mm
Force F =157.1 kN
v
Pipe Flow Velocity
v = Q / A
Flow Q
L/min
Pipe Ø
mm
Velocity v =3.40 m/s
RV
Relief Valve Check
RV ≥ WP × 1.1
Working Press.
bar
RV Setting
bar
Status =PASS ✓
V
Tank Volume
V = 3–5 × Q_pump
Pump Flow
L/min
Multiplier
×
Min Tank =300 L
V
Ohm's Law
V = I × R
Current I
A
Resistance R
Ω
Voltage V =120 V
P
3-Phase Power
P = √3 × V × I × PF
Voltage V
V
Current I
A
Power P =45.5 kW
I
Motor Full Load Current
I = P / (√3 × V × η × PF)
Power kW
kW
Voltage V
V
FLA I =101.5 A
ΔV
Cable Voltage Drop
ΔV = 2 × I × R × L
Current I
A
Length L
m
Volt Drop =3.0 V
F
Fuse / Breaker Rating
F = FLA × 1.25
Full Load A
A
Factor
×
Min Rating =93.8 A
PS
Pressure Switch Set
PS = WP × 0.9 (cutout)
Working Press.
bar
Deadband %
%
Cut-in / Cut-out =180 / 200 bar
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