What happens to the body if the vehicle tilts sideways?

The lateral-axis limit is 5°. The moment the vehicle tilts more than 5° on the ground, a rising body is stopped where it is and automatically lowered; if the body is down, it is not allowed to rise at all. Lateral tilt is the fastest trigger for rollover because the centre of gravity rises as the body is raised, so the safety margin is much narrower than on the longitudinal axis.

> MetaDamper is an intelligent tipper safety system developed by Metadiag Bilişim Teknolojileri at Yıldız Technical University Ikitelli Technopark to reduce rollover risk on tipper trucks and semi-trailers. Its 6-axis gyroscope and accelerometer analyse slope on two axes. A tipper tilt sensor and tipper inclinometer support longitudinal monitoring, where ground slope and tipper body angle are added together and the body is prevented from rising if the combined angle would exceed 55°. On the lateral axis, the raised body is stopped and automatically lowered when lateral tilt exceeds 5°. Transit Lock acts as a body-up interlock and hoist interlock system: above 10 km/h, the hydraulics are locked so a tipper body up while driving scenario is prevented. MetaDamper combines a tipper body angle sensor, tipper tilt sensor and tipper body stability control with a truck black box that records critical events. Compatible with all tipper truck brands, it functions as a tipper rollover prevention system and truck rollover prevention system for construction site truck safety, earthmoving, mining and roadworks. It provides reportable data for fleet safety systems and serves as heavy vehicle safety equipment. The system is CE certified and patented.

100% Made in Türkiye • MetaDiag R&D

Anti-Rollover System for Tipper TrucksRollovers
end here.

100% Made in Türkiye — MetaDamper is engineered and manufactured in Türkiye by Metadiag R&D

MetaDamper analyses ground slope on two axes using its 6-axis gyroscope and accelerometer. On the longitudinal axis, it calculates ground slope + body angle and prevents the body from rising where the 55° limit would be exceeded; on the lateral axis, when the vehicle tilts more than 5°, it stops and lowers the raised body. Stops the accident before it starts.

Try the 55° / 5° Simulation See the Product Range

55° combined long. angle 5° lateral tilt limit 6-axis sensor fusion All brands supported

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Interactive Simulation

The 55° and 5° rule: maths does not allow an accident.

Adjust the longitudinal slope, lateral slope, body angle and road speed. See how MetaDamper intervenes when protection is on — at a 10° longitudinal slope, the body can rise to a maximum of 45°; when the vehicle tilts more than 5°, the body is stopped where it is and lowered; the moment the vehicle exceeds the 10 km/h threshold, the hydraulics are locked and the body cannot be raised at all. Turn protection off and see the risk for yourself.

40° body • 6° long. • 3° lat. • 0 km/h

0°lateral tilt · limit 45°

Drag to rotate

Loading 3D truck…

protection system

PROTECTION ONtap to turn off

System active: unsafe lifting is prevented; if a limit is exceeded, the body is stopped and lowered.

Control Panel

Longitudinal Slope − nose · + tail 6°

Lateral Slope lateral tilt 3°

Body Angle 40°

Road Speed measured by GPS 0 km/h

6° + 40° = 46° / tail + body limit 55°

lateral tilt 3° / lateral limit 5°

GPS · 0 km/h threshold 10 km/h — hydraulics free, body available

SAFEConditions are suitable for tipping.

The body angle is limited to a maximum of 55°, leaving a safety margin. Safe limits: tail-down slope + body ≤ 55°, lateral slope ≤ 5° and nose-down slope ≤ 5° (for nose-down slope, the combined-angle rule does not apply; the body is lowered directly). Above these is one overriding precondition: if the vehicle exceeds 10 km/h, the body cannot be raised at all — Transit Lock locks the hydraulics; the threshold can be calibrated for the site.

Not one number: two separate limits

MetaDamper measures the ground on two axes at the same time. The longitudinal axis determines how far the body may rise; the lateral axis determines whether it must not rise at all or must be lowered immediately. Both limits apply at the same time — meeting one does not make the other unnecessary.

Above these two angle limits is another precondition that has nothing to do with angle: Transit Lock. Integrated GPS monitors vehicle speed; the moment the vehicle exceeds the 10 km/h threshold, the hydraulics are locked and the body — no matter how level the ground is — cannot be raised at all. In other words, before asking “how far can it rise?”, the system answers “can it rise now?”. The body angle is limited to a maximum of 55°, leaving a safety margin.

Axis 01 — longitudinal

≤ 55°

Ground slope + body angle

The vehicle’s tail-down slope is added together with the body opening angle, and this total is monitored continuously as the body rises: the body is stopped the moment the total reaches 55°. On a 5° slope the body can rise to 50°, and on a 10° slope to 45° — as the slope increases, the system automatically reduces the body’s allowable angle. When the vehicle is nose-down, the combined-angle rule does not apply: if nose-down slope exceeds 5°, the body is stopped and lowered directly because of the risk of hoist ram failure and the body falling onto the cab.

The decision is made before lifting — the risk never develops
If the vehicle begins to settle tail-down, the body locks at 55° and rearing up is prevented

Axis 02 — lateral tilt

≤ 5°

Lateral tilt limit

The true trigger for rollover is the lateral axis: as the body rises, the centre of gravity moves upward and even a small lateral tilt can be enough to cause a rollover. That is why MetaDamper allows a much narrower margin laterally — the moment the vehicle tilts more than 5° on the ground, the raised body is stopped where it is and automatically lowered; if the body is down, it is not allowed to rise at all.

Covers ground subsidence, loose fill, suspension-related and tyre-related tilt
Right / left warning lamps immediately show the driver the direction of tilt
Two thresholds: 5° stops the body · 45° MetaStop shuts down the engine

The Problem

Why do tipper trucks roll over?

Earthmoving tippers are the workhorses of construction sites — different specifications, different power levels, rigid trucks or tractor units; but all with tipping bodies. Their biggest challenge is slope at discharge areas. Tipper rollover accident prevention starts with recognising these conditions before unloading; otherwise they can lead to unwanted accidents, property damage and, most importantly, loss of life.

Sloping Ground

When a tipper truck or tipper semi-trailer raises its body on uneven ground, gravity shifts the load towards the slope during discharge. An 8° slope alone can be enough to cause a rollover — and it is almost impossible for the driver to judge this accurately from the cab. Starting to raise the body without recognising the slope can make an accident unavoidable.

Ground Subsidence & Vehicle Risk

Ground subsidence caused by loose and variable material, together with lateral tilt caused by suspension problems or tyres, can trigger a rollover. On sloping ground, the load can build up on one side of the body, shifting the centre of gravity and causing the vehicle to lean towards the loaded side. As the body rises, the centre of gravity rises with it; this is why even 5° of lateral tilt can be enough to trigger a rollover — MetaDamper uses this exact threshold on the lateral axis.

The Tailgate Not Opening

If the tailgate does not open while the body is being raised, the load cannot discharge and the vehicle can rear up. Where the discharge area is close to an embankment edge or other severe hazard, the result can be loss of life and major property damage, along with high repair costs, higher insurance premiums and substantial time and productivity losses.

Accidental Raising in Transit

The risk is not limited to the discharge area — it also exists on the road. An accidental movement of the control lever, a hydraulic valve fault or inattention can leave a tipper body up while driving. The consequences can be severe: strikes on overpasses and bridges, contact with power transmission lines, loads spilled onto the road and a potentially fatal hazard for following traffic. Drivers often cannot see a raised body clearly in the rear-view mirror. MetaDamper’s Transit Lock monitors speed through integrated GPS and locks the hydraulics the moment the vehicle exceeds 10 km/h.

Earthmoving tipper rolled onto its side on sloping ground with the body raised — Real rollover case from the field — ground movement with the body raised

Tipper truck rolled over with its load on an urban road — Rollover caused by the load shifting to one side — days of lost operation

How It Works

Detects. Warns.
Prevents.

Developed by the in-house R&D team of Metadiag Bilişim Teknolojileri at Yıldız Technical University Ikitelli Technopark, MetaDamper operates in demanding construction-site conditions and all weather, mounts to the vehicle chassis and prevents rollovers caused by raising the body on tipper vehicles. The decision is made on two axes together: longitudinal slope + body angle ≤ 55° and lateral tilt ≤ 5°.

Detection

The 6-axis gyroscope and accelerometer measure both axes together: longitudinal slope is added to body angle, while lateral slope (lateral tilt) is monitored against a separate limit. The system is calibrated for each site — thresholds are adjusted for the vehicle type and ground conditions.

Warning

Audible and visual warnings are given in the cab; right / left warning lamps show the driver the direction of the slope — warning begins as lateral slope approaches the 5° threshold.

Prevention

As the body rises, the combined angle (tail-down slope + body) is calculated continuously; the body is stopped the moment the total reaches 55° and cannot rise any further. Example: on a 5° slope the body can rise to 50°, locking at a combined total of exactly 55°.

Automatic Lowering

If the ground subsides while the body is raised, or if the vehicle tilts more than 5°, the body is not allowed to rise further; it is stopped where it is and automatically lowered.

Transit Lock

Integrated GPS monitors vehicle position and speed. The moment the vehicle exceeds the 10 km/h threshold, the hydraulics are locked; accidental body raising on the road is blocked. If the vehicle moves with the body raised, the body is stopped and automatically lowered. The threshold can be calibrated for the site.

Body Sensor optional

The wireless sensor mounted beneath the body monitors the maximum lifting angle; when the body reaches its limit, it is stopped automatically, helping protect component life. If the vehicle begins to settle tail-down, the combined angle locks at 55° — the body is retracted (11° + 44° = 55°) — preventing rearward rollover.

Tailgate Sensor optional

The wireless sensor fitted to the tailgate confirms that it has opened: the body will not rise until the tailgate opens. It also detects potential hydraulic ram failures and helps prevent related accidents.

MetaStop

If the vehicle begins to roll over despite all previous safeguards and the lateral angle exceeds 45°, MetaStop shuts down the engine. Even if the vehicle rolls over, the engine is not forced to keep running, helping prevent severe engine and drivetrain damage, major maintenance costs and extended vehicle downtime.

Black Box

All critical events and operational data are recorded — the evidence is always ready. Daily checklist responses are reported from the same source.

Installation: On vehicles with electrically controlled tipping systems, the product is fitted directly; on systems with pneumatic hoist control, an optional conversion kit converts the vehicle to an electrically controlled system.
Calibration: After installation, the system is calibrated to the vehicle type and site. Thresholds are adjusted to ground characteristics, allowing the same product to operate reliably from earthmoving sites to mine haul ramps, embankment edges and port areas.

Product Range

Configure it to your needs.

MetaDamper main unit — chassis-mounted tipper rollover prevention device

360° angle analysis and rollover-risk prevention
Two-axis limits: longitudinal combined 55° · lateral tilt 5°
Site-specific calibration — threshold settings for different ground and vehicle types
Automatic intervention during ground sinking / subsidence
Audible + visual cab warning (right / left indication)
Transit Lock: GPS speed monitoring with a hoist interlock system — above 10 km/h, the hydraulics lock and the body cannot be raised on the road
Black box: all event and data recording
MetaStop: shuts down the engine if lateral angle exceeds 45°

MetaDamper wireless body sensor and tailgate sensor

Body sensor: safe lifting-angle control
Rearward rollover prevention — 55° lock if the vehicle settles tail-down
Prevents lifting if the tailgate has not opened
Automatic stop at maximum angle — helps protect component life

Not recommended for chain-operated or manually opened tailgates.

Transit Lock status on screen: body-up prevention and automatic lowering while the vehicle is moving
Optional checklist workflow
Self-diagnostics: instantly reports the device’s own faults (sensor connection, power supply/cable, communication loss)

Checklist & Reporting

Daily vehicle checks, on the record.

Before starting the day, the driver completes the daily vehicle check on the 4.3″ in-cab touchscreen. Responses appear immediately on the fleet dashboard: which vehicle submitted on which day, and which questions received answers that differed from the expected response — all visible on one screen. OHS reporting now relies on records, not memory.

Daily checklist status on the MetaDamper fleet dashboard — day-by-day submitted, incomplete and not-submitted states by registration, with positive and negative response counts — **Daily Checklist Status** — day-by-day vehicle tracking (for example, a 16-question daily vehicle check): *not submitted*, *incomplete*, submission time, and positive / negative response counts.

MetaDamper checklist summary — expected versus given answer for each question, including a negative response to the body and tipper mechanism condition check — **Checklist Summary** — the *expected answer* and *given answer* shown side by side for every question. A deviating answer turns red immediately; in the example, “Is the body and tipper mechanism in good condition?” was answered No.

The question set is tailored to the vehicle and site; an expected answer is defined for every question.
The driver responds from the cab display — no separate device, paper form or phone app is required.
Days that are not submitted or left incomplete are flagged automatically on the dashboard; follow-up does not depend on the fleet manager’s memory.
Every answer that deviates from the expected response (e.g. body/tipper mechanism, tyre, brake, tailgate) becomes immediately visible.
Records are reported from the same source as black-box data: the OHS record, driver feedback and insurance processes all rest on a single source of truth.

Features

Why MetaDamper?

MetaDamper is a tipper safety system that combines a tipper body angle sensor, tipper tilt sensor (inclinometer) and 6-axis motion analysis in a single unit. It performs continuous tipper body stability control, preventing lifting in unsafe conditions and acting as both a tipper truck safety system and a truck rollover prevention system. Its decision uses two axes together: longitudinal slope + body angle cannot exceed 55°, and the body is lowered as soon as lateral tilt exceeds 5°. In addition, Transit Lock locks the hydraulics once the vehicle exceeds the 10 km/h threshold — the body cannot be raised accidentally on the road.

360° slope analysis of a tipper truck across roll, pitch and yaw axes using a 6-axis gyroscope and accelerometer

6-Axis Sensor

360° slope analysis using gyroscope + accelerometer fusion — longitudinal and lateral axes are measured separately. No reliance on human judgement.

55° formula: 18° ground slope + 37° body angle = 55° safe limit; body raising is blocked if exceeded

55° + 5° Formula

Longitudinal ground slope + body angle ≤ 55°; lateral tilt ≤ 5°. If either limit is exceeded, the body cannot be raised.

Audible and visual in-cab warning — display and warning lamps showing the driver the direction of slope

Audible + Visual Warning

Clear in-cab warning; right / left lamps show the direction of slope.

Body raising prevented on unsafe ground — safety intervention before a tipper rollover begins

Risk Prevention

If there is danger, the body does not rise. The accident is stopped before it starts.

Transit Lock

Integrated GPS monitors speed: once the vehicle exceeds the 10 km/h threshold, the hydraulics lock and the body cannot be raised accidentally on the road. If already raised, it is stopped and lowered. A built-in body-up interlock protects operation in transit.