NMX‑BTR‑30 / Rev 00 / rolling-stock test / bogie · EN 14363 2026 · Product Page

NMX-BTR-30 · ENGINEERED TO ORDER — RAIL BOGIE TEST RIG & TURNTABLE

Prove the bogie before it carries.

Name: Rail Bogie Test Rig & Turntable
Brand: Neometrix

The bogie is the coach’s chassis — wheelsets, suspension, brakes — and everything the passenger feels, and everything that keeps the vehicle on the rails, rides on it. So after assembly, and after every overhaul, it is proven. A bogie testing unit applies the simulated car-body load through a portal and hydraulic cylinders, measures suspension deflections, heights and air-spring leak-down — and, on calibrated pads, the per-wheel loads that prove equalisation, because wheel unloading is the derailment mechanism. A rotational-resistance rig yaws the loaded bogie and measures the torque, to the EN 14363 static pattern. A computerised bench proves the brake cylinders. And the turntable and traverser run the shop’s flow around them. We build the portals, the hydraulic loading, the drives and the records — quoted across exactly these requirements. No delivered rig is claimed.

Enquire — bogie test rig Capability sheet (PDF)

Illustrative image, not a delivered rig — a bogie testing unit in a depot bay: a heavy grey portal frame straddling a short rail track with a generic unmarked rail bogie beneath, vertical hydraulic cylinders pressing a loading beam onto the bogie bolster, weigh pads under each wheel and a control cabinet beside, no text and no people

Fig · 01 A bogie testing unit — the portal applies the car-body’s weight while the pads under each wheel prove the load is equalised — illustrative, not a delivered rig

Proves

the bogiesuspension + wheel loads

Applies

car-body loadportal + hydraulics

Measures

per-wheel + torqueequalisation, EN 14363

Moves

shop flowturntable + traverser

Built

to orderfixtured + calibrated

ISO 9001 / 14001 Engineered to order Rolling-stock test equipment SCADA records & calibration Noida · India

Overview

The coach rides on it.

Between the coach body and the rails sits the bogie: the frame, the wheelsets, the primary suspension at the axleboxes, the secondary suspension — usually air springs — under the body, the dampers, the brake gear, and on powered bogies the traction drive. Ride comfort is decided there. So is the thing that matters more: whether the wheels stay on the rails. A bogie whose springs are uneven, whose heights are wrong, or whose load sits unequally on its wheels is not a comfort problem — wheel unloading is how vehicles derail. Which is why no serious operator puts a bogie back under a coach on trust: after assembly and after every overhaul, it is proven on a rig, under the load it will carry, wheel by wheel, on record.

Illustrative image, not a delivered rig — a bogie rotational-resistance test rig: a generic unmarked rail bogie on a low slewing platform beneath a loading frame, a horizontal torque arm and actuator at the side, instrument cables running to a console with a blank screen, no text and no people

Fig · 02 The rotational-resistance rig — the loaded bogie is yawed and the resisting torque measured, the EN 14363 static pattern — illustrative, not a delivered rig

Load it like the coach does. The bogie testing unit is a stiff portal frame over a short length of track. The bogie rolls under; hydraulic cylinders press a loading beam onto its bolster or air-spring seats, applying the simulated car-body weight — tare to crush, as the test demands. Under that load the rig measures what matters: spring deflections and rates, ride heights, air-spring function and leak-down, damper behaviour, clearances.

Then weigh it, wheel by wheel. Under each wheel sits a calibrated weigh pad. With the car-body load applied, the rig reads the individual wheel loads and proves they are equalised within the acceptance band — because a wheel carrying too little load is a wheel ready to climb the rail in a curve or on a twist. Shimming and correction happen at the rig, not in service; the final equalisation goes into the per-bogie record.

And prove how it turns. The rotational-resistance rig yaws the loaded bogie against a simulated car-body interface and measures the resisting torque — the EN 14363 static measure that governs curving. Too much resistance fights the curve; too little invites instability. Alongside, a computerised brake-cylinder bench proves the bogie-mounted cylinders — stroke, pressure, timing, leakage — and the turntable and traverser keep bogies and coaches moving through the shop that does all of this daily.

A bogie shop’s output is not bogies — it is numbers attached to bogies: heights, rates, wheel loads, torque, all inside their bands, all on record. The rig is where those numbers are made.

Ride And Rail Safety

Decided at the bogie

Comfort, stability and staying on the rails all ride on the bogie’s suspension and its wheel loads — so every bogie is proven under real load after build and overhaul.

Wheel By Wheel

Equalisation on record

Calibrated pads under each wheel prove the load shares within the band — because wheel unloading is the derailment mechanism, and shimming belongs at the rig, not in service.

The Whole Shop

Test rigs plus shop flow

Load portal, rotation rig and brake-cylinder bench for the proof; turntable and traverser (to the 100-ton class) for the flow — one family, quoted in the same tenders.

Architecture

Load, measure, move.

The schematic follows the proof — a bogie loaded like the coach loads it, measured wheel by wheel and in yaw, recorded, and returned to service — and shows the machines that do it, from the portal to the turntable.

FIG · 03BTR ARCHITECTURE · LOAD PORTAL / WHEEL-LOAD PADS / ROTATION RIG · TURNTABLE, TRAVERSER & RECORDS

Fig · 03 Apply the car-body’s weight, prove the suspension and the per-wheel loads, measure the yaw torque — and run the shop’s flow on the turntable and traverser beside the rigs

Arc · 01

The Load Portal

A stiff portal frame over the track, hydraulic cylinders and a loading beam — the simulated car body, applying tare-to-crush load exactly where the coach does.

Arc · 02

Per-Wheel Weighing

Calibrated weigh pads under each wheel read the individual loads under the applied weight — equalisation proved and corrected at the rig, then recorded.

Arc · 03

The Rotation Rig

The loaded bogie yawed against a car-body interface, the resisting torque measured through the sweep — the EN 14363 static test for curving behaviour.

Arc · 04

Shop Flow & Records

The flush turntable and the traverser route bogies and coaches through the shop; SCADA / DAQ logs every parameter to the per-bogie acceptance record.

Have a bogie-testing, turntable, traverser or brake-bench requirement? Send the bogie families, the loads and the shop layout — a clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference rig, built to the fleet.

The parameters below describe a reference installation. The load capacity, the track gauge, the fixturing, the measurement bands and the records format all follow from the customer’s bogie families and the shop that will run them.

Illustrative image, not a delivered installation — a flush floor bogie turntable in a workshop: a circular steel deck with two crossing rail tracks set into a smooth concrete floor, a generic grey rail bogie parked on it, the geared slew ring visible at the deck edge and a pendant control station, no text and no people

Fig · 04 The bogie turntable — the shop-flow member: routing bogies between tracks on a flush, driven deck — illustrative, not a delivered installation

Where bogie testing goes wrong

In the calibration and the fixturing, not the concept. Weigh pads that are not calibrated as a set turn equalisation into guesswork; a portal that is not stiff enough measures its own deflection instead of the springs’; fixturing that does not match the bogie family’s interfaces loads the frame in the wrong places; a rotation rig with friction in the wrong bearings corrupts the very torque it exists to measure; and results that live on paper disappear exactly when an acceptance question arises.

So the pads are calibrated together against reference loads, the portal is engineered stiffer than anything it measures, the fixture set is designed per bogie family and proven at commissioning, the slewing path runs on known, characterised bearings — and every test writes to a per-bogie SCADA record the shop can retrieve years later. The measure of the rig is that two shifts, testing the same bogie, produce the same numbers.

Full specification — expand

System	Rail bogie test rig & shop-flow family — bogie testing unit, rotational-resistance rig, brake-cylinder bench, bogie turntable & traverser; engineered, built, installed, commissioned & calibrated
Load Application	Stiff portal frame over track; hydraulic cylinders + loading beam applying the simulated car-body weight (tare to crush) at the bolster / air-spring seats
Suspension Proof	Deflections & spring rates, ride heights, air-spring function & leak-down, damper response and clearances — measured under applied load
Per-Wheel Weighing	Calibrated weigh pads under each wheel — individual wheel loads read under load; equalisation proved within the acceptance band and corrected at the rig
Rotational Resistance	Loaded bogie yawed against a simulated car-body interface; resisting torque measured through the sweep — the EN 14363 static pattern
Brake-Cylinder Bench	Computerised proof of bogie-mounted brake cylinders — stroke, pressure, timing, leakage — with recorded per-unit results
Turntable	Flush floor bogie turntable — driven slew ring, crossing tracks, pendant control — routing bogies between shop roads
Traverser	To the 100-ton class — shifting bogies and complete coaches between parallel tracks on a driven platform
Records	SCADA / DAQ integration — every parameter logged to a per-bogie acceptance record against the bogie’s identity
Sourcing	Load cells & weigh-pad elements, servo valves & precision instruments are bought-in specialist items; Neometrix builds the portals, hydraulic loading, rotation drive, fixturing, turntable & traverser structures and drives, integrates weighing + DAQ + records, then installs, commissions & calibrates
Status	Engineered to order · sized to the bogie families, loads & shop · quoted across bogie-testing, turntable, traverser & brake-cylinder-bench requirements · no specific delivered rig is claimed on this page

PDF · 1 page

Rail Bogie Test Rig & Turntable — Capability Sheet

Tender Response

Send your bogie families, loads & shop — compliance matrix in two working days

Variants

One family, the rigs your shop needs.

Tenders call them bogie testing units, rotational-resistance rigs, brake-cylinder benches, turntables and traversers — usually two or three together, for one shop. The discipline is common; the set follows the fleet.

Var · 01

Bogie Testing Unit

The load portal with suspension measurement and per-wheel weighing — the acceptance rig at the heart of the shop.

Var · 02

Rotational-Resistance Rig

Loaded-yaw torque measurement to the EN 14363 static pattern — the curving-behaviour proof beside the load rig.

Var · 03

Brake-Cylinder Test Bench

Computerised proof of bogie-mounted brake cylinders — stroke, pressure, timing, leakage — recorded per unit.

Var · 04

Turntable & Traverser

The shop-flow members — flush driven turntables, and traversers to the 100-ton class moving bogies and complete coaches.

Applications

Where it proves them.

Wherever bogies are built, overhauled and put back under coaches.

A · 01Metro rolling-stock depots

A · 02Mainline coach & wagon works

A · 03Bogie overhaul workshops

A · 04New-build bogie acceptance

A · 05Brake-cylinder overhaul lines

A · 06Depot shop-flow — turntables & traversers

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is a bogie, and why is it proven on a rig?

The bogie is the wheeled chassis under each end of a rail vehicle — the frame carrying the wheelsets, the primary suspension at the axleboxes, the secondary suspension (typically air springs) under the car body, the dampers, the brake gear, and on powered bogies the traction motors and gearboxes. It is where ride comfort is decided, and where the safety-critical interface of railways lives: the wheel on the rail. A bogie can be assembled from perfect parts and still be wrong — springs matched badly, heights set unevenly, load sitting on three wheels instead of four. None of that is visible in a standing bogie; all of it appears under load. That is why the discipline everywhere is the same: after new assembly and after every periodic overhaul, the bogie goes on a rig, carries the load it will carry in service, and proves its numbers — deflections, heights, per-wheel loads, rotational torque — before it is allowed back under a coach. The rig turns “it should be fine” into a recorded acceptance.

Q · 02 What does the bogie testing unit actually measure?

Everything that only appears when the bogie is loaded. The portal applies the simulated car-body weight — stepped from tare toward fully laden as the procedure demands — through a loading beam onto the bolster or air-spring seats, exactly where the coach bears. Under that load the rig measures suspension deflections and effective spring rates (are the springs matched, and to specification?), ride heights at the reference points (will the coach sit level, at the right buffer and coupler heights?), air-spring behaviour — inflation, levelling response and leak-down over time — plus damper response and critical clearances. And then the measurement the acceptance turns on: with the load applied, calibrated pads under each wheel read the individual wheel loads. The totals matter less than the distribution: equalisation within the band, side to side and axle to axle. Where it is out, the correction — shimming, height adjustment — happens there at the rig, the load is re-applied, and the final figures go into the per-bogie record.

Q · 03 Why do per-wheel loads matter so much?

Because derailment is not usually a failure of strength — it is a failure of wheel load. A flanged wheel stays on its rail because the vertical force pressing it down overwhelms the lateral forces trying to steer it up and over the rail head. The classic derailment mechanism — flange climb — happens when a wheel is unloaded: on twisted track, in a curve, under dynamic effects, the lightly-loaded wheel’s flange can ride up the gauge face and out. The defence is written into every railway’s acceptance rules: the static wheel loads must be equalised within tight bands, side to side and diagonal to diagonal, so that no wheel starts its service life already light. That is a bogie-level property — it depends on spring matching, shimming and geometry — and it can only be proven by weighing each wheel under representative load, which is precisely what the testing unit’s calibrated pads do. It is the single measurement on the rig with the most direct line to keeping a train on the track.

Q · 04 What is the rotational-resistance test?

It answers the question the load rig cannot: how does the bogie behave when the vehicle turns? In a curve, the car body and the bogie rotate relative to each other about the pivot / centre-plate connection. The torque that resists that rotation — from the side bearers, the pivot friction, the secondary suspension — must sit in a window: too high, and the bogie fights the curve, driving up lateral forces at the wheel-rail contact and with them the risk of flange climb on tight curves and turnouts; too low, and the bogie is insufficiently restrained against yaw, inviting hunting instability at speed. The rotational-resistance rig measures it directly: the bogie, under representative vertical load, is slewly yawed through a defined angular sweep against a simulated car-body interface while the resisting torque is recorded through the cycle — the static test pattern of EN 14363, from which the acceptance figure (the X-factor) is taken. It is run at new-build acceptance and after overhaul work that touches the pivot, side bearers or secondary suspension.

Q · 05 Where do the turntable and traverser fit in — and what records does the rig keep?

They are the shop-flow members of the same family, and the same tenders usually buy them together. A bogie shop is a grid of tracks — strip roads, assembly roads, the test rig road — and bogies have to move between them: the flush floor turntable (a driven deck with crossing tracks, pendant-controlled) rotates and routes bogies at the intersections, while the traverser — a driven platform running in a pit across the shop, built to the 100-ton class — shifts bogies and complete coaches laterally between parallel roads. On the records side: the rigs run on SCADA / DAQ, and every test — loads, deflections, heights, leak-down, per-wheel figures, torque sweeps — is logged against the bogie’s identity into a per-bogie acceptance record the shop can retrieve years later, which is what an auditor or an incident investigation will ask for. (The same discipline scales up a level: the single coach test rig, proving a complete coach’s systems on one SCADA-based installation, is the coach-level sibling of this family — and one we also quote.)

Q · 06 What do you build, and what is bought-in?

We build the rigs as machines, and the split is the usual honest one. What Neometrix does is the portal structures and frames, engineered stiffer than anything they measure; the hydraulic loading system — cylinders, power pack and controlled force application, the same engineering as our servo-hydraulic and loading-system lines; the rotation drive and torque measurement of the resistance rig; the fixture and adapter sets designed to the customer’s bogie families and proven at commissioning; the turntable and traverser structures and drives; the integration of per-wheel weighing, instrumentation and SCADA / DAQ with per-bogie records; and the installation, commissioning and calibration in the shop — pads calibrated as a set against reference loads. What is bought-in specialist is the load cells and weigh-pad elements, servo and proportional valves, precision instruments and standard gear drives — selected, integrated and calibrated by us. This sits squarely in our test-rig and rolling-stock line, beside the water-leak testing system for standard and broad-gauge stock. Engineered to order; quoted across bogie-testing, turntable, traverser and brake-cylinder-bench requirements; no specific delivered rig is claimed on this page.

↗

The test-rig line from Neometrix.

The rolling-stock sibling, the structural-load franchise and the load-application engineering the portal is built on — engineered at our Noida facility.

↗ Rolling-Stock Test

Water-Leak Testing System for Rolling Stock

The coach-level rolling-stock test system — the same customer world, one level up.

↗ Structural Load Test

Servo-Hydraulic Fatigue Testing Machine

The structural test franchise — controlled force, measured response, on record.

↗ Load Application

Hydraulic Loading System

The load-application engineering the bogie portal is built on.

Browse all Neometrix product lines.

Get a quotation

Send the bogie families
and the loads.

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 — bogie test rig Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — RAIL BOGIE TEST RIG & TURNTABLE LOAD PORTAL · PER-WHEEL WEIGHING · EN 14363 ROTATION RIG · BRAKE-CYLINDER BENCH · TURNTABLE & TRAVERSER ENGINEERED IN NOIDA · INDIA

Prove the bogie before it carries.

The coach rides on it.

Decided at the bogie

Equalisation on record

Test rigs plus shop flow

Load, measure, move.

The Load Portal

Per-Wheel Weighing

The Rotation Rig

Shop Flow & Records

Reference rig, built to the fleet.

Where bogie testing goes wrong

One family, the rigs your shop needs.

Bogie Testing Unit

Rotational-Resistance Rig

Brake-Cylinder Test Bench

Turntable & Traverser

Where it proves them.

Common questions.

The test-rig line from Neometrix.

Water-Leak Testing System for Rolling Stock

Servo-Hydraulic Fatigue Testing Machine

Hydraulic Loading System

Send the bogie families
and the loads.

Similar Products

Share This Page

Prove the bogie before it carries.

The coach rides on it.

Decided at the bogie

Equalisation on record

Test rigs plus shop flow

Load, measure, move.

The Load Portal

Per-Wheel Weighing

The Rotation Rig

Shop Flow & Records

Reference rig, built to the fleet.

Where bogie testing goes wrong

One family, the rigs your shop needs.

Bogie Testing Unit

Rotational-Resistance Rig

Brake-Cylinder Test Bench

Turntable & Traverser

Where it proves them.

Common questions.

The test-rig line from Neometrix.

Water-Leak Testing System for Rolling Stock

Servo-Hydraulic Fatigue Testing Machine

Hydraulic Loading System

Send the bogie familiesand the loads.

Similar Products

Share This Page

Send the bogie families
and the loads.