MOBILE WALKING FLOOR ®
Specially designed trailers, the WALKING FLOOR ®
system is used worldwide to unload bulk material.
Systems unload in minutes and can handle
bulk goods, pallets, drums, bales and rolls.

Unlike dump or tipper trailers, which require vertical space to unload, trailers outfittedwith a WALKING FLOOR ® unloader are not limited by height restrictions beyond the height of the trailer.
OTHER SYSTEMSWALKING FLOOR ®

To meet the different needs of haulers, we have developed a variety of flooring options toaccommodate virtually any material. Floor slats are available in light, medium and heavy dutyapplications.

STATIONALY WALKING FLOOR ®
WALKING FLOOR ® engineered solutions
are suitable for storing, receiving and meteringa variety of materials. Systems are custom
engineered to your specifications with virtuallyunlimited dimensions and weight restrictions.
Systems can be flush mounted, installed above
ground, placed in a pit or secured to an existing
pad. Available in a variety of configurations,
WALKING FLOOR ® systems can be constructed
to include multiple bins, walls and roofing.

Advantages:• Power requirements are low.
• Increased power at startup is not needed.
• Low in maintenance.
• Systems easily combine with existing equipment.
• When used properly, system is safer than other conveyors.
• Systems can be driven on by truck or forklift.

V-FLOOR® Designed to Last
With the option of floor slats constructed of
special Hi-Wear steel, the V-FLOOR®
unloading system is specially designed to handledifficult loads. The unique sub-deck, bearing, andslat configuration absorbs load impact.
The rugged V-FLOOR® slat is teamed with theV-Drive, an evolution of the reliable andproven RUNNING FLOOR II® drive technology. The
double-rod arrangement of the V-Drive hydraulicsystem divides the unloading forces between
both ends of the drive frame, distributing force
and allowing for faster unloading times.
When installed in a trailer, the V-FLOOR® unloader
provides safe, efficient and versatile horizontal
unloading. Like all WALKING FLOOR ® systems, theV-FLOOR® unloader requires minimal
maintenance and is easy to operate.

Impact Absorbing Design
1. Slat is available in steel or aluminum.
2. J-Bearing provides full-length
bearing support.
3. Slat, bearing and sub-deck combination
designed for maximum impact.
4. The V-FLOOR® takes advantage of a design
incorporating a triangle shape and wings.
This provides excellent rigidity and strength
while maintaining the ability to absorb theenergy of impact loads.

V-FLOOR® Key Benefits• Unique slat design absorbs high impacts.
• Sub-deck provides full length floor hold down.
• No floor seal.
• Superior leak resistance compared to standard flooring.
• Ideal for a wide variety of backhauls.
• Low maintenance and easy to operate, with low power requirements.
V-9 only:• Optional designs for high temp applications, such as asphalt delivery
and soil remediation.
• Steel option floor slat for highly abrasive loads.
Trough Design
The unique design of the trough uses gravity
to move fines and other material to thebottom of the trough.

PHOTO: with asphalt finisher

SUPERIOR by DESIGN

Floor planks areinterchangeable and can bepre-drilled andpre-countersunk for quick
one person installation.

Small Drive Window:
Drive unit allows for a small opening
in the trailer structure resulting in astronger trailer design.

Bearing:：Compared to other companies’
system, bearing surface area ismore than double.
It protects the floor slat fromdust and the like. As a result,it prolongs the life of the floor
and the bearing. The bearings
can be installed quickly andeasily.

Cross-Drive Shoes:Long cross-drive shoes provide
structural strength to the floor
planks. Inline bolt pattern on drive
shoes allows for the pre-drilling ofaluminum floor planks.

25mm x 25mm (1” x 1”) Channel:• Lighter without compromising strength• Bolted or welded to cross members. Splash bearings run full length• Faster bearing installation

Three Point Floor Plank Support System:
1. Large bearing surface
2. Heavy–duty legs and 25mm x 25mm
tube or channel (1”x1” ) support load
3. Bearing “wings” provide a solid foundation

Floor Plank Profiles
Floor planks are available in a large
selection of profiles designed for light tomedium to severe duty for bulk materials
and pallet cargo. These include theSTANDARD DUTY, IMPACT™ andV-FLOOR® Series. The V-FLOOR® planks
feature planks without seals, with thebearing becoming the seal.

Optional:
25mm x 25mm(1”x1”) Tubing

Nut Bar:
Inline pattern allows floor planks
to be installed completely fromthe top for fast one personinstallation.

DRIVE UNIT®

ＫＲＦⅡ ‐ＤＸＥ Ｄｒｉｖｅ• Interchangeable components reduce parts inventory• Drive shoe designed for pre-drilling of floor planks• Hydraulic components easily accessible for maintenance• Chromated finish protects components from corrosion• Durable & reliable light weight construction

Cylinder Barrel:
The cylinder design increases the system`sstrength by using all the cylinders as structuralmembers. The cylinder barrel and not the rod
move the cross-drive and floor planks.
Cross-Drive:
Each cross-drive is supported by two
full length UHMW bearings mounted
on the trailer`s main frame beams.

Cylinder Rod:The cylinder rod is a structuralmember of the drive unit and isattached at both ends to thedrive frame. The short rod lengthand the drive frame attachment
reduce deflection from
unloading forces. The rod isinduction case hardened chrome
plated for excellent wear.

Ball Valve:
Standard manual on/off
can be easily upgradedto optional electric valve
for remote control(wireless or by cable).）Steel Hydraulic Tubing:
New standardized design
makes replacement easier.
A zinc coating, plus
chromation protect against
Corrosion or tubing of
Stainless steel.

Drive Frame:
Frame structure designed
for high speed/heavy
duty unloading.

Cylinder Head:
The design includes two wear rings toprotect the seal and buffer seal fromdamage. Industrial wipers clean the rods
and reduce entry of contaminants.

Check Valve:
JIC fittings make emergency repairseasy. Made of chromated corrosion
resistant aluminum alloy for longer life.
Cylinder Piston:High temperature cup seals and heavy-duty
wear rings protect the cylinder barrel fromdamage (scoring).

Switching Valve:
Trouble-free poppet valve design.

Control Valve:
Determines load or unload mode.
Electric option available.

®

ＫＲＦⅡ ‐ＤＸＥ Ｄｒｉｖｅ

Divided Forces®

ＫＲＦⅡ ‐ＤＸＥ Ｄｒｉｖｅ

OTHER SYSTEMS

50％ unloading force

100％ unloading force

50％ unloading force

Frame Design - Divided Unloading Forces• 50% of forces on each end of drive frame• Results in less frame stress• Longer frame life
• Equal forces in both directions for loading or unloading
Floor Support (Drive Area)
ＫＲＦⅡ ®‐ＤＸＥ Ｄｒｉｖｅ

OTHER SYSTEMSLong Drive Shoe Design – Structural Strengthfloor• Excellent floor plank support• Adds structural strength• Better distribution of unloading forces to floor planks• Supports load in drive area
• Standard design feature on all KRFII® - DXE drive units

Deflection

Cylinder Design – Deflection

ＫＲＦⅡ ®‐ＤＸＥ Ｄｒｉｖｅ• Cylinder is a structural component of the drive frame• Piston rods do not move and are attached at both ends
to the drive frame• The cylinder barrel acts to reduce the deflection fromthe unloading forces• Four points (1,2,3,4) support between cylinder heads
and piston reduces deflection

OTHER SYSTEMSMOBILE WALKING FLOOR ®
High Speed / Heavy Duty Unloading
TRAILER WITH KRFⅡ®-DXE system

High Speed Unloading• Maximum pump flow of 227 liters ( 60 g ) per minute• Maximum speed: 3-4 minute loading or
unloading for 13.6 m trailer• Advised pump flow of 170 liters ( 45 g ) per minute• Advised speed: 5-6 minute loading or
unloading for 13.6 m trailer• High speed unloading system since 1985
• Divided forces allow for faster unloading speeds• Fastest unloading speed of any moving floor system• Equal forces in both loading and unloading directions• Frame structure designed for high speed unloading

Lowest Total Cost of Ownership
WALKING FLOOR ® SYSTEM

Retail Price
MaintenanceReplacement Parts

OTHER SYSTEMS
Down TimeThe total cost of ownership of a WALKING FLOOR ® system is
The lowest in the industry over the lifetime of the equipment, because
our systems include:・ durability ・Lower maintenance costs
・ reliability ・Less downtime
・ service・Fewer repairs

WALKING FLOOR ® Operation

There are 3 pairs of floorboards, and each one of them moves three times separately
when moving backward (the load above does not move)
At the time of forward movement all the floor boards move simultaneously(the load at the top moves)

WALKING FLOOR® System Installation

1. Cross-members provide the foundation
for the WALKING FLOOR ® system.
2. The sub-deck consists of 1” or 25 mm
square tubing or aluminum channel, andis welded or bolted to the cross-members.
3. On mobile applications, the Splash Guard Bearing
increases the life of the flooring byprotecting the underside from road grime.
4. The Winged Bearing evenly supports theflooring. Hold-Down Bearings are mounted
at the discharge end of the system.
5. The bearings are snapped down onto thesub-deck. Configuration of thebearings will vary.
6. Slats are then attached to the cross-drives.

MARUWA ORIGINAL MOBILE TYPE WALKING FLOOR ® OPTIONSREINFORCED WALL※PATENT PENDING
The reinforcing wall of container inside wall isdivided into upper and lower structures. And byadding a bolt fixing part, it becomes possible tosuppress the deformation at the time of loading.
※Please never hold down the load from above
with a wheel loader etc. It may cause a malfunction.

PREVENT OPENING NEW STRUCTURE※ PATENT PENDING
For prevent opening, combined foldable type
and wire type

When not loading, use a foldable type.

When loading, use a wire type.
This wire automatically disengages when theWALKING FLOOR ® discharges the load.

VARIOUS TYPE WALKING FLOOR ®
TOP MOUNT DRIVE
By setting the drive unit on the floor, the stand isunnecessary and it will be possible to place thedrive unit directly on the floor. You can also
reduce the depth of the pit.
The drive and the conveying section are completely
separate rooms.

LEAK PLOOF
Ideal for high-moisture loads• Municipal Solid Waste• Medical Waste• Silage• Cannery Waste

ICE BIN SYSTEM
We are dedicated to designing, engineering, manufacturing
and assembling WALKING FLOOR ® Ice Storage &Conveying Systems to the highest standards. To ensure
quality control, we manage each step of the process.
• Standard & Custom Bin Conjurations Available• Each System is Assembled In-House Prior To Shipping• Hydraulic Components Assembled &Tested During Manufacturing• Specialty UHMW Coating For Floor Slats isApplied In-House• Technicians Available for Installation Supervision,
Start-Up,Built on Innovation

WALKING FLOOR® systems provide
horizontal loading/unloading
solutions for bulk materials, pallets,bales and rolls. Our moving floor
conveying systems offer safe,
versatile and efficient material
handling for mobile unloaders andstorage & conveying bins.

Variety of Materials

Our conveyors are used to move avariety of materials in numerous
industries, including waste
management & recycling,
agriculture, aggregates & asphalt,wood products and energy
production.

THE 27th NEW ENVIROMENTAL EXPOSITION 2018

Best Solution

Our system consists of a series ofreciprocating slats, which serve as
the flooring of the mobile unloader
or bin. When activated, theWALKING FLOOR® conveyor “walks”
the load in or out.

MARUWA MACHINERYMARUWA MACHINERY CO.,LTD
KEITH ® JAPAN AGENCY

264-1 Mizuhashiichidabukuro Toyama-city,Toyama 939-3555, JAPANTEL /JAPAN (076) 478-5800
FAX /JAPAN (076) 478-3908
URL http://www.maruwa-mcn.co.jp/
E-Mail info@maruwa-mcn.co.jp

www.keithwalkingfloor.com

The WALKING FLOOR trademark can be used only when describing specific material handling systems
designed and manufactured by KEITH Mfg. Co. It is not appropriate to use the WALKING FLOOR
trademark to describe any other system. KEITH and WALKING FLOOR are the registered worldwide
trademarks of KEITH Mfg. Co. As intellectual property, they are valuable assets to the corporationand its affiliate companies. Trademarks must be used properly. We request that these guidelines befollowed for all uses of trademarks.