Synergix / Specialist vehicle guides
Walking-floor and moving-floor trailers.
A hydraulically driven floor moves compatible material towards the rear without raising the body. Compare floor profiles, bulk and general-cargo duties, containment, receiving arrangements and hydraulic compatibility.
Body, equipment and receiving method considered together.
Understand carrying limits, loading and the complete working area.
Clear handling scope, timing and specialist availability.
The practical guide
Choose your layout.
Start with the layout and the job it needs to do.
Jump to the layout that interests you, then compare its useful capability, loading method and trade-offs. The actual vehicle and equipment are agreed for your job.
Stationary list of the layouts explained
Before choosing a vehicle
Dimensions, weight and handling.
Use these measurements to describe the requirement. They are separate limits, not interchangeable ways of approving a load. A standard body’s dimensions or payload must not be copied to a conversion without its own specification.
| Check | What to establish | Why it matters |
|---|---|---|
| Body | Actual usable volume, loading height and rear opening | Roof gear, floor profile and material loading pattern affect use. |
| Material | Bulk density, moisture, particle size and contamination | Volume and mass limits are independent. |
| Floor duty | Permitted material, point loads, impact and leakage resistance | A floor suited to wood is not automatically suited to scrap or liquids. |
| Power and discharge | Required pressure/flow, return circuit and receiving area | Correct wet kit, working space and material handling are part of the job. |
For an ordinary road arrangement, permitted gross mass includes the vehicle or combination, body, people, fuel, equipment and goods. Subtract actual ready-to-load mass for a nominal freight allowance, then check axles, coupling, local floor/support loads and handling separately. Enough total payload does not prove one item can be lifted or supported.
Walking-floor trailer
Published planning examples. The actual vehicle, equipment, load distribution and access must be checked for your booking.
Open the full-size diagramDimensions and planning figures in text
External trailer 13,600 × 2,550 mm; travelling height 4,200–4,670 mm. 91–106 m³ published volume; selected rear apex 2,600–3,000 mm. Freight example 26,000 kg.
Reciprocating floor discharges to rear. Volume, internal apex height, density and freight limits differ by build. No pallet count.
Published example sources:
Configuration explained
Standard bulk moving floors.
Horizontal discharge for compatible loose material.
Construction and useful capability
The load-bearing floor consists of groups of longitudinal slats. In a typical cycle they advance together and return in groups, so friction produces net movement of the material. The mechanism can move suitable bulk freight towards the open discharge end while the body stays broadly horizontal. Product behaviour and the floor system determine how effectively it flows.
Loading, limitations and booking implications
This can suit particular wood, agricultural, recycling or industrial bulk movements after acceptance checks. It avoids the full raised-body envelope of a tipper, which can help at suitable restricted-height receivers. It still needs stable ground, safe rear doors, controlled discharge space, overhead clearance for relevant equipment and competent operation. No moving floor is suitable for every material or site.
Configuration explained
Wear-resistant and specialist floor profiles.
Match slats and body to abrasion and impact.
Construction and useful capability
Manufacturers offer different slat thicknesses, profiles and protection for different duties. Sharp scrap, abrasive rubble or heavy impact from a loader can demand a more robust arrangement than light clean material. A heavily reinforced floor may increase equipment mass and change available freight payload. Product approval needs the whole body and operating duty, not just one material label.
Loading, limitations and booking implications
Explain particle size, loading method, drop height, temperature, moisture and anything sharp, corrosive or contaminating. Some floors are designed for leak resistance, but resistance and full containment are different specifications. Do not book wet waste, liquids or fine powders on the assumption that all aluminium slats form a sealed tank.
Configuration explained
Pallets, big bags and return freight.
Possible only with a compatible floor and method.
Construction and useful capability
Some moving-floor systems can handle suitable general cargo or palletised goods through approved arrangements. That can offer useful return-load flexibility, but pallet contact, wrapping, floor profile and movement method matter. A product that unloads safely as loose bulk may behave differently when placed in bags or on pallets.
Loading, limitations and booking implications
Driving a forklift over a moving floor adds concentrated wheel loads and possible surface damage. It requires approval for the actual floor and supported trailer condition. The ability to carry a pallet while stationary does not prove the moving mechanism can unload that pallet safely. Agree external equipment, restraint and receiving layout rather than assuming the trailer replaces a forklift.
The practical guide
How the equipment works.
How the moving floor works
Groups of floor slats move through a controlled hydraulic sequence that advances suitable material towards the rear. WALKING FLOOR is a recognised brand name; moving floor is the wider equipment description. The floor, sidewalls, rear opening, sweeping system and product must work together. Do not assume a generic trailer accepts every material a floor manufacturer advertises.
Useful materials and applications
Appropriate wood products, biomass, agricultural bulk, recyclable material and certain waste streams can suit the right body and floor. Some systems also handle suitable bagged, baled or palletised freight. Material compatibility, prior loads, cleanliness, sharpness, temperature and moisture must be agreed. Product suitability is not established merely by describing it as bulk.
Pallets are a separate loading case
Suitable pallets may require an approved floor layout, unloading aid or tracks. A floor that can move loose wood does not automatically convey every pallet without snagging. A forklift entering the trailer creates wheel loads that the actual floor must support. Loading from the rear also requires a compatible dock or ramp and support arrangement.
Floor choice controls the limitations
Slat thickness, profile, seals and wear resistance vary. Fine powders, sharp scrap, wet loads and abrasive rubble need particular specifications and may be unsuitable. Leak-resistant is not a guarantee of a liquid-tight tank. Sticky or compacted material can bridge or overload the discharge process. Ask for the product-approved floor/body combination.
Maximum payload and bulk density
There is no universal moving-floor payload. The tractor/trailer tare, hydraulic floor, body, axles and road regime determine the permitted mass. A large cubic body can be filled with lightweight material while a dense material reaches the weight limit much sooner. Give the actual density and moisture condition; do not convert a quoted cubic volume into a guaranteed tonne allowance.
Roof sheets and load containment
Book a suitable covering system for the product and ensure the load cannot escape, blow out or create a road hazard. A powered sheet has its own operating instructions and needs to be secured for travel. A load below the sides is not automatically safe without a cover. The operator must justify any permitted uncovered arrangement. Loading height must not prevent the cover from operating correctly.
Unloading space and rear doors
The receiver needs enough space for the rear doors, material discharge and any handling machine. The trailer remains a large road vehicle even though the body does not tip. The site must still provide suitable ground and clearance. Door-release and discharge controls need to protect people from a shifted or pressurised bulk load through the approved procedure.
Hydraulic supply and equipment compatibility
The tractor needs the specified hydraulic/PTO arrangement or other approved power source. Pressure, flow, oil compatibility, return arrangement and connections are equipment-specific. Excess pressure, wrong plumbing or contamination can damage the system and create hazards. A tractor that can tow the trailer does not automatically have the equipment to operate its floor.
Safe use, jams and maintenance
Keep people clear of the moving floor and discharge area. A blockage or jam requires the manufacturer’s isolation and recovery process; do not enter or reach into operating machinery. Slats, seals, hydraulics, guides and controls need maintenance appropriate to use. Product residues can affect hygiene, discharge and mechanical condition.
When it is better than a tipper
Horizontal discharge can help at a receiving point with limited overhead clearance or where raising a body would be unsuitable. It does not authorise use on unsafe ground or under unresolved electrical hazards. A tipper may be better for another compatible material or receiving system. Compare product, floor wear, cleanout, payload, discharge time and site geometry.
Profiles are illustrative, with no thicknesses or universal strength ranking. Forklift wheel-load approval is a separate check.
Open full-size desktop diagram · Open full-size mobile diagramThe practical guide
Match material volume to legal mass.
A density example
For an illustrative 90m³ body and 25,000 kg freight allowance, material at 250 kg/m³ fills the volume at 22,500 kg. At 600 kg/m³, the weight allowance is reached at about 41.7m³. These assumed figures explain why the same trailer can be volume-limited on one product and weight-limited on another. They are not a vehicle offer. Actual moisture, compaction and density must be established.
Material behaviour at discharge
Bridging, compaction, sticky residues or oversized pieces can prevent predictable movement. The receiver needs to accept and manage the discharge without people entering danger zones. Do not plan to cure stuck material by climbing into a running body or manually working near moving slats. Abnormal discharge needs the operator’s approved response.
Food, waste and previous loads
A body carrying waste is not interchangeable with clean agricultural or food/feed freight. Product standards, previous-load histories, cleanliness and applicable waste duties need specific acceptance. A competitor’s TASCC or feed accreditation is not Synergix evidence. State the actual material and status, including hazardous properties, rather than using bulk as the complete description.
Horizontal discharge still needs an assessed site and controlled area. No universal ground, safe distance or indoor suitability is implied.
Open full-size desktop diagram · Open full-size mobile diagramThe practical guide
Hydraulics, site and maintenance.
The wet kit must match the floor
The hydraulic supply needs the correct pressure, flow, return arrangement, fittings and fluid specification for the system. A tractor capable of tipping another trailer may still be unsuitable. Excess flow, back pressure or contaminated oil can damage equipment. Provide the trailer and drive identification if requesting traction only, including who is responsible for operation and checks.
Receiving space beyond the doors
A moving floor can discharge into a stockpile, receiving area or compatible process through an agreed method. The rear needs safe access and clearance for doors and discharged material, with people kept clear. Indoor work also needs ventilation and consideration of engine exhaust, dust and fire risks. Horizontal unloading does not eliminate workplace transport hazards.
The floor needs a wear and service programme
Slats, bearings, seals, drive connections, bulkhead system where fitted, hydraulics, doors and roof mechanisms have different wear modes. Debris can damage seals or jam movement. A competent service programme follows the manufacturer and actual duty, including abnormal impact or contamination. The road annual test does not certify every moving-floor function or product compatibility.
Covers and travel condition
Suitable cover and containment prevent material escaping during travel. The floor and doors need their approved travel state, and carried tools or accessories need restraint. Fine, light or wet material can require a different containment specification from coarse dry bulk. Open-top loading also needs a safe loading method that avoids people working unprotected at height.
The practical guide
The complete approach and working area.
The gate is only one part of access
Use the actual loaded vehicle dimensions and assess the approach, bends, mirrors, rear swing, gradients and departure. A route that admits the cab may still be unsuitable for the trailer or its load. Height includes the body, supports and cargo, not just the nominal vehicle category. Where required, the in-cab height indication must represent the actual overall height.
Space to complete the operation
The site must accommodate loading, sheeting, hydraulic connection, discharge and cleaning. Add working space to the parked outline, with suitable ground and separation from people and traffic. Overhead lines, canopies, drains, buried services and weak edges may be relevant. Photographs help identify obstacles, but cannot certify hidden ground strength or approve a machine’s duty.
Permissions and receiving authority
Give timed-access rules, parking/road occupation constraints, site inductions, authorised contacts and the actual receiving point. An except-for-access exemption does not suspend a weak-bridge or physical height restriction. For unusual mass, width, length or projections, the operator establishes the appropriate road framework and any surveys, notices or other arrangements. GB, Northern Ireland and international movements can have different requirements.
The practical guide
Condition, records and responsibility.
Condition on the day
For this family, focus on slats/seals/drive, hydraulics, doors/cover, product compatibility and receiver readiness. Pre-use checks and defect reporting remain essential alongside scheduled maintenance. A current annual test or an equipment sticker cannot approve a newly damaged component. Stop using defective equipment and have it assessed through the appropriate competent process.
Servicing, tests and examinations are different
The road vehicle/trailer needs its roadworthiness programme. Specialist mechanisms need manufacturer-based maintenance suited to age, duty, environment and condition. Where lifting or pressure equipment falls within a statutory inspection or examination regime, its reports and defect actions have their own purpose. Do not replace all of these with one claim that the vehicle is serviced annually.
Agree the roles
The consignor supplies accurate goods, weights, dimensions and handling information. The carrier and driver retain their own road and equipment responsibilities. The receiver provides the agreed access, receiving arrangement and authority. Identify who loads, operates machinery, provides documents and receives the goods. Ownership or hire of equipment does not remove the duties of those using or controlling it.
The practical guide
Driver hours and a realistic schedule.
Driving is only part of the job
Allow for loading, sheeting, hydraulic connection, discharge and cleaning, as well as travel, queues and departure. Loading, equipment operation and checks are normally work, not a driving break simply because the vehicle is stationary. Waiting has to be classified under the applicable conditions; unknown waiting with continuing duties is not automatically rest.
The usual in-scope HGV limits
For a normal in-scope operation, the assimilated rules generally allow nine hours of daily driving, extendable to ten twice a week, with 56 hours in a week and 90 across two consecutive weeks. After 4½ hours of driving, a qualifying 45-minute break is required, which can normally split as 15 then 30 minutes. Rest, working time, the actual regime and any valid exceptions also need consideration. These limits are not an arrival-time calculator.
Working time, rest and overnight work
Mobile-worker rules generally limit working time to a 48-hour weekly average and 60 hours in an individual week, with separate break and night-work provisions. Previous duties can reduce what the assigned driver can do on your job. A long movement can require suitable overnight parking, sleeper/hotel arrangements, relief or a multi-day plan. A specialist day cab does not automatically provide sleeper accommodation.
Routes and vehicle scope matter
The actual vehicle, activity and route determine the applicable rules. Since 1 July 2026, relevant UK/EU international light-goods movements over 2.5t can fall within expanded hours/tachograph scope; that is not a blanket statement about every domestic van. International requirements, borders, site hours and ferry timings belong in the schedule.
The practical guide
What the quotation needs to cover.
Quote the whole movement
The useful starting specification is material properties, volume/mass, floor profile, wet kit and receiving process. The price covers the suitable vehicle/equipment, competent people, full route, agreed handling, availability and time. It is not simply a loaded-mile fuel calculation. Tell us about urgency, exact slots, extra stops, waiting, returns and work beyond the vehicle.
Positioning and onward mileage
The vehicle may need to travel to collection, reposition, return equipment, use a wash or move to another agreed handover. Empty mileage still uses time and energy. Uncoupled hire, delayed release or a second visit can create additional work. Agree these elements in the quotation, including what happens if the site or goods are not ready.
Good preparation helps value
Accurate dimensions and weights, clear access, prepared receiving equipment and a ready contact reduce the risk of a failed visit. Appropriate specialist equipment can cost more per mile while completing the actual job more effectively. The cheapest vehicle description is not a useful comparison if it excludes the handling you need.
The practical guide
Fuel, auxiliary power and emissions.
Count the actual energy sources
The energy plan includes road travel plus sustained floor hydraulics, PTO or another agreed supply. Load, equipment mass, road speed, gradients, traffic, stops and weather all affect consumption. Published economy for another body or a lightly loaded vehicle is not a reliable specialist-job MPG. Use measured data or clearly declared assumptions for an estimate.
Avoid double counting
If fuel is measured for the complete movement, do not add the same engine-driven PTO consumption again. A separate refrigeration engine, compressor, generator or metered supply may need its own entry. Include positioning and the agreed return scope. Distinguish an energy estimate from an actual vehicle record and avoid claiming a single consumption figure for the whole equipment family.
Electric feasibility is a duty decision
Electric road vehicles or auxiliaries can suit appropriate known routes with compatible power, range, charging and reserve. Their suitability depends on the load, deadline, auxiliary demand and reliable supply; availability is confirmed separately. Electric standby on a trailer is different from an electric tractor and does not make the entire movement electric.
Use a consistent reporting boundary
CO₂ measures carbon dioxide; CO₂e includes other greenhouse gases on an equivalent basis. Compare like-for-like combustion and upstream fuel, or electricity generation/supply, as applicable. A whole-life comparison also needs manufacture, batteries/equipment, maintenance and end of life. No exhaust at the vehicle is not the same as no lifecycle impact. A calculated footprint needs its date, factors and assumptions.
Choose the equipment for the outcome
Compare the adjacent choices.
| Alternative | Reason to assess it |
|---|---|
| Tipper | For accepted free-flowing material and a suitable tipping site. |
| Tanker/silo system | For an accepted product needing compatible closed pneumatic or liquid transfer. |
| Standard freight body | For suitable packaged goods that do not benefit from moving-floor discharge. |
Put the information to work
Three practical booking examples.
Light dry wood material
Establish density, volume, load method and moisture, then compare usable space and weight. Confirm the exact product is compatible with the floor and any return load.
A low-roof receiving building
A moving floor may avoid raising a tipper body, but doors, discharge pile, exhaust/ventilation and all equipment clearances still need assessment.
A palletised return load
Check the approved stationary/moving duty, point loads, handling, cleanliness and restraint. General-cargo capability is not universal.
Terminology in plain English
Useful equipment terms.
- Moving floor
- A coordinated system of powered slats producing net material movement.
- Slat profile
- The floor section chosen for the product and wear/impact duty.
- Bulk density
- Mass per unit volume of the actual material in its loaded condition.
- Wet kit
- A compatible tractor hydraulic supply, not a guarantee for every trailer mechanism.
- Return back pressure
- A hydraulic interface condition affecting compatibility and reliability.
- Leak resistance
- A defined containment characteristic, which must not be assumed to mean fully liquid-tight.
Why Synergix
Confidence in the whole delivery.
Practical transport experience
Three generations of family transport experience support useful decisions about the load, site and receiving operation. We bring those details together before agreeing the movement.
Direct delivery and wider capability
Dedicated direct delivery and UK/European capability help connect collection with the required handover. Specialist equipment, route, timing and availability are confirmed for the actual job.
Tracking and proof of delivery
Live tracking and delivery evidence help you follow progress and establish receipt. Any specialist temperature, cleaning or equipment record needs to be requested in the required format before booking.
Insured transport and active support
Insured transport and active operational support provide reassurance through the movement. Declare goods, value and unusual handling so applicable cover and terms can be confirmed. No unlimited cover or automatic acceptance is implied.
Specialist equipment availability and mobilisation are confirmed for the job. Synergix’s separate 60-minute UK courier collection proposition is not a universal guarantee for these specialist vehicles.
Walking-floor and moving-floor trailers FAQs
Your questions answered.
How does a walking floor work?
Groups of hydraulically driven slats move in a coordinated cycle to produce net material movement. The exact system and permitted loads follow its manufacturer.
Does it need to tip?
The main discharge method is horizontal floor movement, without raising the whole body. Site stability, clearances and safe discharge remain essential.
Can it carry pallets?
Some compatible arrangements can. Floor profile, load contact, movement method, handling and restraint need assessment.
Can a forklift enter?
Only where the floor and trailer support are approved for the actual machine’s concentrated wheel loads and operation.
Is it leakproof?
Not automatically. Floor profiles and containment specifications differ. Declare wet material, fine powders or liquids before acceptance.
Will any wet-kit tractor run it?
No. Pressure, flow, return, fittings, fluid and operating arrangements must match the actual system.
Is it a waste transport service?
The equipment can serve some waste duties, but material classification, carrier acceptance and applicable documents/permissions require separate confirmation.
How is it priced?
Product, density, equipment, full mileage, loading/discharge time, cleaning, route, timing and any specialist acceptance or return-load conditions affect price.
Before you book
Tell us what needs moving.
You do not need to identify every equipment model before contacting us. Start with material properties, volume/mass, floor profile, wet kit and receiving process.
Describe the goods
Product/type, quantity, packed dimensions, verified gross unit weights or density/volume as relevant, support/handling points, condition, value and any hazards, hygiene or temperature instructions.
Show both sites
Postcodes, approach, restrictions, measured openings, ground, working space, loading/discharge equipment, receiving position, contacts and useful photographs or drawings.
Define the work
Date/time windows, stops, loading/unloading roles, equipment operation, placement or transfer, parked periods, returns, cleaning and required documents. Include any installation or indoor handling as a separate requested scope.
Agree the arrangement
The team confirms the appropriate equipment, availability, scope, price and conditions. A vehicle illustration or LoadCheck calculation is planning help, not a reservation or approval for specialist handling.