NMX‑DMT‑6 / Rev 00 / IS 919 · IS 2102 · IS 8000 / Noida · India 2026 · Product Page

NMX-DMT-6 · ENGINEERED TO ORDER — DYNAMIC MOTION TEST PLATFORM

Replay the ground on a test floor. Tune the system that has to hold steady.

Name: Dynamic Motion & Tilt Test Platform — Six-Actuator Motion Rig
Brand: Neometrix

A heavy-payload motion and tilt rig: a moving frame carried on six electro-mechanical linear actuators that rolls, pitches and bounces a mounted assembly to a commanded profile — so a stabilised system can be exercised, measured and tuned on the test floor instead of in the field. Applications include stabilised-platform and gimbal qualification, heavy-machinery motion testing, and weapon-station and gun-control-system test rigs for armoured fighting vehicles. Engineered to order, to your payload and motion specification.

Enquire — motion test rigs Capability sheet (PDF)

Representative render — a heavy six-actuator dynamic motion test platform in an industrial test hall: a large welded steel moving frame carried on six inclined electro-mechanical linear actuators bolted to a steel base frame grouted into the floor, with a plain steel test mass mounted on the frame, cable drag chains and hazard striping

Fig · 01 The platform architecture with a test mass mounted — illustrative render, not an existing installation

Actuators

6electro-mechanical

Motion

Rollpitch · bounce

Drive

Rollerscrew · servo + gearhead

Control

Closedloop · platform kinematics

Data

Real-timeangle · speed · accel

ISO 9001 / 14001 Engineered to order IS 919 · IS 2102 · IS 8000 Design · build · commission Noida · India

Overview

A stabilised system is judged by the disturbance it rejects. So you have to give it one.

Anything that must hold a line while its base moves — a stabilised sight, a gimbal, an antenna mount, a weapon station — is only as good as its ability to reject disturbance. Proving that in the field means a vehicle, a track, crews, fuel and weather, and a disturbance you can never repeat exactly. A motion platform reproduces the disturbance indoors: the same profile, on demand, as many times as the control loop needs to be tuned.

Representative render — a heavy industrial electro-mechanical linear actuator: a servo motor driving a roller screw through a planetary gearhead in a machined steel housing, with a linear position sensor along the side, bolted clevis end mounting and industrial cable connectors

Fig · 02 One of six actuators — servo motor, gearhead and roller screw (illustrative render)

The architecture is deliberately simple. A rigid welded base frame is grouted to a vibration-isolated foundation. Six electro-mechanical linear actuators stand between it and a moving frame, which carries the payload. Extending and retracting the six in combination sets the frame’s angle and height — roll, pitch and bounce — so a commanded attitude becomes six coordinated actuator lengths.

The difficulty is not the geometry; it is the loads. A heavy payload moved at real accelerations puts large, rapidly reversing forces into the structure, so the frames are sized for stiffness rather than strength alone. Where the payload calls for it a separate load-sharing system — pneumatic or hydraulic actuators, or a mass equaliser — carries its standing weight in step with the actuators, so the screws are sized for the motion rather than the dead load. Every actuator has its own position feedback and a manual override.

A repeatable disturbance is worth more than a realistic one. If the profile cannot be replayed exactly, you are not tuning a control loop — you are guessing at it.

Engineered to Order · Motion Rigs

Built around the payload

Stroke, frame sizing, actuator rating, foundation design and instrumentation are all set by the payload and the motion profile you need to reproduce. The platform is designed, built, installed and commissioned to that specification — there is no standard model.

Six Actuators · Closed Loop

Commanded angle, solved in software

The controller solves the platform kinematics — the length each actuator must take for a commanded angle — and drives all six together in open or closed loop, with limit switches, inclinometer and speed feedback, alarms at travel limits and a test-cycle counter.

Instrumented Throughout

Every axis measured, not assumed

A real-time data-acquisition system logs angle, speed and acceleration across the run, and a rotary junction carries instrumentation signals off a payload that is itself rotating — so the record covers the payload’s behaviour, not just the platform’s.

Architecture

Foundation to payload, and back through the data.

The schematic below is the whole rig — foundation, base frame, the six actuators, the moving frame and its payload, the load-sharing system, and the control and data-acquisition loop around them.

FIG · 03MOTION PLATFORM ARCHITECTURE · SIX-ACTUATOR KINEMATICS · CONTROL & DAQ LOOP

Fig · 03 The whole rig — isolated foundation and grouted base frame, six electro-mechanical actuators, moving frame and payload, with closed-loop control and full data acquisition

Arc · 01

Base Frame & Foundation

A rigid welded base frame is grouted to a concrete foundation with locating holes, levelled holding-down points and covered anchorages, and is isolated so that test motion is not transmitted into the surrounding building. The foundation is analysed as part of the design — on a rig like this the floor is a structural component, not a place to stand it.

Arc · 02

The Six Actuators

Each actuator is a servo motor driving a roller screw through a planetary or spur gearhead in a machined housing. Roller screws are chosen over ball screws for load capacity and sustained speed. Every unit carries an inbuilt linear position sensor independent of the motor feedback, and a manual override so the platform can be recovered if a drive fails.

Arc · 03

Load Sharing

Carrying a heavy payload’s dead weight through six roller screws sizes them for what they hold rather than for the motion they produce. Where the payload calls for it, a separate load-sharing system — pneumatic or hydraulic actuators, or a mass equaliser, active or passive — offloads that standing weight under its own controller, synchronised with the six linear actuators, leaving the drives to supply the dynamic component.

Arc · 04

Control & Data

The controller converts a commanded attitude into six actuator lengths, runs open- and closed-loop profiles, and interlocks travel limits, inclinometer and speed feedback and alarms behind an operator interface with emergency stop. Alongside it, data acquisition logs angle, speed and acceleration, with a rotary junction bringing signals off a rotating payload.

Holding a motion-simulation, tilt-rig or stabilisation test requirement? Send it across — clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Configured, not catalogued.

Because the platform is sized around the payload and the motion profile, the specification below describes the architecture and what is engineered to your requirement, rather than fixed ratings. Send the payload mass and inertia, the motion you need to reproduce and your instrumentation list, and the configuration is worked against them.

Representative render — a motion test rig control station: an operator console with two widescreen monitors showing motion-axis plots, a red emergency-stop button, and an open industrial control cabinet containing a modular real-time data-acquisition chassis with plug-in signal modules and wiring looms

Fig · 04 The control station — operator interface, emergency stop and data-acquisition cabinet (illustrative render)

The loop around the rig

The operator sets an attitude or selects a stored profile; the controller resolves it into six actuator lengths and drives them together, holding travel limits and raising alarms if a commanded move would exceed them. The same station carries the emergency stop and the test-cycle counter.

Acquisition runs in parallel rather than downstream. Angle, speed and acceleration are logged in real time through modular input modules, and a health check can be run across the system before and after actuation, so a suspect channel is found before it costs a test rather than after.

Full specification — expand

System	Heavy-payload dynamic motion & tilt test platform · six-actuator moving frame on a grouted base frame · design, manufacture, supply, installation, testing & commissioning
Motion	Roll, pitch and bounce of the moving frame · static positioning and dynamic profile replay · travel, rates and payload capacity engineered to the customer’s specification
Actuation	6 × electro-mechanical linear actuators · servo motor + planetary/spur gearhead + roller screw in a machined housing · inbuilt linear position sensor per actuator, independent of motor feedback · manual override
Load Sharing	Pneumatic or hydraulic actuators, or mass equaliser · active or passive · separate controller, driven in synchronism with the linear actuators · offloads payload standing weight · fitted where the payload calls for it, settled at final design review
Structure	Rigid welded moving frame and base frame · payload mounting interface engineered to the customer’s article · intermediate frame attachment available to close the frame aperture for mounting other components
Foundation	Base frame grouted to a levelled, vibration-isolated concrete foundation · recessed holding-down points and locating features so nothing protrudes above floor level · foundation sizing analysed and issued for design review
Control	Platform-kinematics solution — actuator length per commanded angle · open- and closed-loop operation · variable motion rate · limit switches, inclinometer and speed feedback · alarms at travel limits · test-cycle counter · platform-angle display
Data Acquisition	Industrial real-time DAQ controller with modular analogue and digital I/O · logs angle, speed and acceleration · stores data for processing and analysis · pre- and post-run channel health check · interfaced to the rig controller
Rotary Junction	Rotary base junction carrying instrumentation and control signals off a rotating payload, mounted to the moving frame on a dedicated attachment
Safety	Travel limit switches with adjustable settings · alarm on approaching maximum or minimum · emergency stops within reach of the platform · manual actuator override · interlocked operator interface
Standards	IS 919, IS 2102 and IS 8000 for limits, fits and tolerances · software development kit and operating system supplied with the controller · application software for open- and closed-loop operation
Status	Engineered to order — built to the customer’s payload and motion specification · no standard model is held · configuration settled at design review

PDF · 1 page

Dynamic Motion & Tilt Test Platform — Capability Sheet

Tender Response

Send your specification — compliance matrix in two working days

Variants

One motion discipline, many things to move.

Different tenders call this a motion simulation platform, a tilt rig, a dynamic test rig or a turret test rig. The engineering underneath is the same: commanded motion, carried loads, measured response.

Var · 01

The Configured Platform

The six-actuator architecture on this page, sized to your payload and motion profile — frames, actuator rating, stroke, foundation, control and instrumentation all set at design review.

Var · 02

Weapon-Station & Turret Test Rigs

Configured as a dynamic turret test rig: the platform carries a weapon station or turret assembly and reproduces the hull disturbance of a vehicle on the move, so a gun-control system’s stabilisation can be exercised and tuned indoors, with the payload’s own motion logged through the rotary junction.

Var · 03

Gimbal & Stabilised-Platform Test

Smaller, faster configurations for stabilised sights, gimbals, antenna and sensor mounts — where payloads are lighter, the useful tilt range is wider and the interest is in settling behaviour and pointing error rather than gross load.

Var · 04

Ride & Terrain-Profile Replay

Motion recorded on a track or in service, replayed as bench motion for control-system development, durability work and heavy-machinery qualification — the same platform used as a repeatable substitute for a field trial.

Applications

Where it applies.

Wherever something must be proven against motion it would otherwise have to go out and find.

A · 01Stabilised platform, sight and gimbal qualification — settling and pointing behaviour

A · 02Weapon-station & gun-control-system test rigs for armoured fighting vehicles

A · 03Antenna, radar and sensor mount motion testing

A · 04Heavy machinery & structural assembly motion qualification

A · 05Terrain- and ride-profile replay for control-system development

A · 06Defence, aerospace & automotive test laboratories

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What does a dynamic motion and tilt test platform actually do?

It moves a heavy assembly the way its service environment would, but indoors and repeatably. The payload is mounted on a moving frame carried by six linear actuators; extending and retracting those six in combination tilts the frame in roll and pitch and lifts it in bounce. That lets you hold an assembly at a fixed inclination to check behaviour under a static tilt, or drive it through a recorded motion profile so a control system experiences the disturbance it would meet in the field — as many times as it takes to tune it.

Q · 02 Can it be configured as a dynamic turret test rig?

Yes — that is one of the principal defence applications for this architecture. In that configuration the moving frame carries a weapon station or turret assembly and reproduces the hull disturbance a vehicle experiences on the move, so the gun-control system’s stabilisation loop can be exercised and tuned on the test floor rather than on a range. The assembly’s own traverse and elevation behaviour is logged through the rig’s data-acquisition system, with a rotary junction carrying signals off the rotating assembly. Every such rig is engineered to the customer’s payload, interface and motion specification, and those are set with you at design review.

Q · 03 Why electro-mechanical actuators rather than hydraulic ones?

For a rig that spends its life doing controlled, repeatable positioning, electro-mechanical actuation is cleaner and easier to control precisely: there is no power pack and no hydraulic fluid in the motion drives.. The roller screw is the reason it can carry the loads — it spreads the thrust over many rolling contacts instead of a limited number of point contacts, which is what makes high load and sustained speed possible together. Hydraulics still earn their place where peak forces are very large, which is one of the roles the load-sharing system can fill.

Q · 04 How does a recorded field profile become platform motion?

Motion measured in service — typically from gyros and accelerometers on the vehicle or structure — is converted by the controller into a commanded attitude against time. The controller then solves the platform kinematics for each instant, working out the length every one of the six actuators must take to produce that attitude, and drives them together. The result is that a disturbance which originally happened once, on a particular day, becomes something you can replay on demand and compare against directly.

Q · 05 What is the load-sharing system for?

Mostly to take the payload’s dead weight off the screws. A heavy assembly loads the actuators continuously whether it is moving or not, so sizing them to hold that weight as well as produce the motion is wasteful — and it puts a standing load through a screw that is there to position, not to prop. A load-sharing system — pneumatic or hydraulic actuators, or a mass equaliser — carries the standing weight in parallel, under its own controller but synchronised with the actuators, leaving the drives to supply the dynamic component. Whether it is fitted at all, and whether it is active or passive, is settled at design review against the actual payload.

Q · 06 Can you build to our payload and motion specification?

Yes — that is the only way this is built. Send the payload mass and inertia, its mounting interface, the motion you need to reproduce (static inclination, dynamic profile, or both), the instrumentation you want logged, and the handling and headroom constraints of the bay it has to live in. The platform, actuators, load sharing, foundation, control and data acquisition are engineered against that, reviewed with you at design review, and then built, installed and commissioned. A compliance matrix returns within two working days.

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Get a quotation

Send your motion
test specification.

The Projects desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — motion test rigs Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — MOTION TEST PLATFORMS IS 919 · IS 2102 · IS 8000 MADE IN NOIDA · INDIA

Replay the ground on a test floor. Tune the system that has to hold steady.

A stabilised system is judged by the disturbance it rejects. So you have to give it one.

Built around the payload

Commanded angle, solved in software

Every axis measured, not assumed

Foundation to payload, and back through the data.

Base Frame & Foundation

The Six Actuators

Load Sharing

Control & Data

Configured, not catalogued.

The loop around the rig

One motion discipline, many things to move.

The Configured Platform

Weapon-Station & Turret Test Rigs

Gimbal & Stabilised-Platform Test

Ride & Terrain-Profile Replay

Where it applies.

Common questions.

Test & measurement systems from Neometrix.

Mass Properties Measuring Instrument

Optical System Integration on Mobile Platforms

T-72 Actuating Cylinder Indigenisation

Send your motion
test specification.

Similar Products

Share This Page

Replay the ground on a test floor. Tune the system that has to hold steady.

A stabilised system is judged by the disturbance it rejects. So you have to give it one.

Built around the payload

Commanded angle, solved in software

Every axis measured, not assumed

Foundation to payload, and back through the data.

Base Frame & Foundation

The Six Actuators

Load Sharing

Control & Data

Configured, not catalogued.

The loop around the rig

One motion discipline, many things to move.

The Configured Platform

Weapon-Station & Turret Test Rigs

Gimbal & Stabilised-Platform Test

Ride & Terrain-Profile Replay

Where it applies.

Common questions.

Test & measurement systems from Neometrix.

Mass Properties Measuring Instrument

Optical System Integration on Mobile Platforms

T-72 Actuating Cylinder Indigenisation

Send your motiontest specification.

Similar Products

Share This Page

Send your motion
test specification.