Modified Test Rig for NSH-39M / 250 kg/cm² · 28 kW / NSH-39M Aviation Gear Pumps / India

NSH-39M · AVIATION GEAR PUMP TEST RIG

Modified Test Rig for NSH-39M, rated for 250 kg/cm² continuous duty.

A fully automated and manually operable test platform for performance evaluation, endurance testing and diagnostic verification of aviation gear pumps, particularly the NSH-39M series. Designed with inputs from 3-BRD, Chandigarh, it integrates hydraulic, electrical, electronic and software systems, with fail-safe shift between automatic and manual operation.

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Modified test rig for NSH-39M aviation gear pump - hydraulic test rig with stainless steel tank and control panel by Neometrix

Fig · 01 Modified Test Rig for NSH-39M · hydraulic circuit with control and gauge panel

Max Pressure

250kg/cm²

Drive Motor

28kW

Speed Accuracy

±1%

Flow Range

0–90LPM

Heat Exchanger

20kW

Overview

One rig, auto or manual.

Engineered for the performance evaluation, endurance testing and diagnostic verification of NSH-39M aviation gear pumps.

Modified test rig for NSH-39M angled view - NSH-39M gear pump hydraulic test rig by Neometrix

Fig · 02 Angled view of the Modified Test Rig for NSH-39M

The Modified Test Rig for NSH-39M is a sophisticated, fully automated and manually operable testing platform specifically engineered for the performance evaluation, endurance testing and diagnostic verification of aviation gear pumps, particularly the NSH-39M series. It was designed with inputs from 3-BRD, Chandigarh, and developed by Neometrix Engineering Pvt. Ltd.

The platform offers modular integration of hydraulic, electrical, electronic and software systems, built for rugged performance in demanding maintenance and repair environments. Its seamless shift between automatic and manual operation ensures fail-safe testing and complete operational redundancy. Each subsystem is integrated to deliver high-performance testing of NSH-39M pumps under simulated flight conditions.

Automatic when you want it. Manual when you need it.

Architecture

Four subsystems, one test platform.

The rig is segmented into an electric drive and control system, a main hydraulic circuit and control panel, a lubrication system, and a data acquisition and control system.

Sub · 01

Electric Drive & Control

ABB 28 kW, 3000 RPM squirrel-cage induction motor (IP55, F-class insulation) on an ABB ACS800 VFD with digital feedback, Hubner OG9 encoder and a star-delta starter panel with overload protection and safety interlocks.

Sub · 02

Main Hydraulic Circuit & Panel

Rated for continuous duty at 250 kg/cm², with a Rexroth relief manifold (10, 40, 75, 90 kg/cm²) under solenoid control, 50 L reservoir, Rockwin turbine flow meter and WIKA pressure instrumentation.

Sub · 03

Lubrication System

Refurbished oil tank with FSB-25 breather and SC3-010-74 suction strainer, WIKA 0–16 kg/cm² gauge and S-10 transmitter, Waree differential-pressure clogging indicator (2.5 bar) and additional inline filtration.

Sub · 04

Data Acquisition & Control

NI PCI 6515 and PCI 6221 cards, industrial i7 PC with 19″ TFT display, standby PC, 1000 VA UPS, colour LaserJet printer and signal-conditioning modules running a LabVIEW GUI.

Sub · 05

Heat Management

Alfa Laval 20 kW plate-type heat exchanger with electrically actuated Parker PM-143 valves on the coolant water, plus a closed-loop cooling and filtration circuit with clogging indicators.

Sub · 06

Piping & Test Provisions

SS316 piping with Ham-let fittings and Sandvik tubes, removable drip tray for oil collection, Polyhydron 300-bar hand pump with relief valve, and a static pressure test tank with automatic oil top-up.

Specifications

Full technical parameters.

Key parameters and components of the Neometrix Modified Test Rig for NSH-39M.

Test Article	NSH-39M series aviation gear pumps
Operation	Fully automatic or manual, with fail-safe shift between modes
Max Pressure	Rated for continuous duty at 250 kg/cm²
Drive Motor	ABB induction motor, 28 kW, 3000 RPM, squirrel cage, foot-mounted, IP55, F-class insulation
Speed Control	ABB ACS800 VFD with digital feedback, ±1% speed accuracy; Hubner OG9 rotary encoder for RPM
Starter Panel	Star-delta panel (NXA0726) with overload protection and safety interlocks
Relief Manifold	Rexroth valves at preset thresholds of 10, 40, 75 and 90 kg/cm², solenoid controlled
Reservoir	50 L (refurbished); Hydroline SC3-010-74 suction strainer (149 micron), FSB-25 breather, Shridhan SDN102 low-level switch
Temperature Sensing	Honeywell L6188A2002 temperature switch; WIKA RTD PT-100 transmitter; WIKA R5502 dial gauge, 0–100°C
Flow Monitoring	Rockwin turbine flow meter, 0–90 LPM, accuracy ±1%
Pressure Monitoring	WIKA panel gauges 0–2 and 0–150 kg/cm²; WIKA S-10 transmitters, 4–20 mA
Heat Management	Alfa Laval plate-type heat exchanger, 20 kW; Parker PM-143 electrically actuated coolant valves
Static Test Provisions	Polyhydron 300-bar hand pump with integrated relief valve; static pressure test tank with automatic oil top-up
Filtration & Cooling	Closed-loop cooling and filtration with clogging indicators
Construction	SS316 piping, Ham-let fittings, Sandvik tubes, removable drip tray
Lubrication System	WIKA 0–16 kg/cm² gauge and S-10 transmitter; Waree differential-pressure clogging indicator (2.5 bar setpoint); BCH junction box for sensors
DAQ Hardware	NI PCI 6515 and PCI 6221; Advantech/ADLINK i7 industrial PC, 19″ TFT; standby PC (HP/Dell/Lenovo); APC 1000 VA UPS; colour LaserJet printer; signal-conditioning modules
Software	LabVIEW, icon-based GUI; modes: Auto, Manual, Test, Maintenance, Calibration; test data visualization, archival and report generation
Calibration	In-situ ports for sensor calibration; NABL-certified calibration
Test Oil	OM-15 hydraulic oil

Key Features

What the rig delivers.

Drive, hydraulics, thermal control and data acquisition working together.

F · 01Tests NSH-39M aviation gear pumps at up to 250 kg/cm² using OM-15 hydraulic oil, driven by an ABB 28 kW / 3000 RPM motor.

F · 02ABB ACS800 VFD with Hubner OG9 encoder provides ±1% speed accuracy, with star-delta starting and overload protection.

F · 03Rexroth relief manifold with solenoid-controlled preset thresholds at 10, 40, 75 and 90 kg/cm² manages test pressure.

F · 04Rockwin turbine flow meter (0–90 LPM, ±1%) and WIKA S-10 transmitters (4–20 mA) provide flow and pressure data.

F · 05Alfa Laval 20 kW plate heat exchanger and Polyhydron 300-bar hand pump support thermal control and static pressure tests.

F · 06NI PCI 6515 / 6221 DAQ with LabVIEW GUI offers Auto, Manual, Test, Maintenance and Calibration modes.

F · 07NABL-certified calibration with in-situ ports for pressure, flow and temperature verification.

F · 08SS316 piping with Ham-let fittings and a removable drip tray give clean, corrosion-resistant hydraulic test circuits.

Applications

Where it tests.

From defence maintenance depots to hydraulics training labs.

A · 01NSH-39M gear pump functionality testing

A · 02Aerospace MRO and overhaul facilities

A · 03Defence maintenance depots (IAF / HAL / DRDO)

A · 04Educational and training institutions for hydraulics

A · 05Endurance testing and diagnostic verification of aviation gear pumps

A · 06Simulated flight-condition pump testing under variable torque and speed

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is the Modified Test Rig for NSH-39M?

It is a fully automated and manually operable testing platform built by Neometrix Engineering Pvt Ltd for performance evaluation, endurance testing and diagnostic verification of aviation gear pumps, particularly the NSH-39M series. It was designed with inputs from 3-BRD, Chandigarh.

Q · 02 What subsystems make up the test rig?

Four subsystems: an electric drive and control system, a main hydraulic circuit and control panel, a lubrication system, and a data acquisition and control system (DAS).

Q · 03 What pressure and speed can the rig deliver?

The main hydraulic circuit is rated for continuous duty at 250 kg/cm². The drive is an ABB 28 kW, 3000 RPM induction motor on an ABB ACS800 VFD with Hubner OG9 encoder feedback, giving speed accuracy of ±1%.

Q · 04 What operating modes does the software offer?

The LabVIEW-based, icon-driven interface offers Auto, Manual, Test, Maintenance and Calibration modes, with test data visualization, archival and report generation. Operation can shift to manual override if the automatic system fails.

Q · 05 How is flow, pressure and temperature measured?

A Rockwin turbine flow meter (0-90 LPM, ±1%) measures flow. WIKA gauges and S-10 transmitters (4–20 mA) measure pressure, and a WIKA RTD PT-100 transmitter with dial gauge (0–100°C) measures oil temperature. In-situ ports allow sensor calibration.

Q · 06 Where is the rig used?

NSH-39M gear pump functionality testing, aerospace MRO and overhaul facilities, defence maintenance depots (IAF, HAL, DRDO), and educational and training institutions for hydraulics.

Q · 07 How can I get a quotation?

Contact Neometrix Engineering Pvt Ltd through https://neometrixgroup.com/contactus with your pump type and test requirements.

Get a proposal

Tell us your pump type
and test requirements.

We configure the drive, hydraulic circuit and data acquisition to your test requirements and walk through the scope with your project team.

Request proposal +91 7777 876 876

Modified Test Rig for NSH-39M, rated for 250 kg/cm² continuous duty.

One rig, auto or manual.