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The cost to purchase a Fully Automatic Roll off Tarping System is about 5 times greater than the cost of a Dump Truck Tarping System. The reason for the cost difference is that a roll off tarp system needs to be much more robust due to the extreme abuse they go through in normal operation, and because of the automation involved in adapting to the various height and length containers it must cover. Because of the higher up-front cost of a Fully Automatic Roll off Tarping System, owners and managers of waste companies sometimes choose a lower priced Semi-Automatic Tarping System, or no tarp system at all, but instead a manual hand tarp for their vehicle or fleet. 

  The purpose if this article is to help you owners and managers of roll off fleets, to make informed decisions about what type of roll off tarping system is best for you and your operation, and to prevent you from going down the wrong path which can be costly in one form or another.   

Here are 3 Tips for choosing which type of roll off tarp system is best for your operation:  

Tip #1 - Safety  

Tip #2 - Efficiency  

Tip #3 - Cost  

Let's start with

Tip #3 - Cost, since everyone's first question is normally "How Much?"   To purchase a Fully Automatic Roll off Tarp System, you could have an up-front cost in excess of $7000 per vehicle. This by far is the greatest up-front cost of the three categories of roll off tarp systems. A Semi-Automatic Roll off Tarp System will run about half that price at $3500, and a manual hand tarp can be as low as $75. The costs you don't see in the up-front saving of a lesser expensive system however, are examined in the safety and efficiency factors of Tips #1 and #2.   

Tip #2 Efficiency - Since time is money, the least expensive manual hand tarp is the most costly in regard to efficiency. It takes a lot longer to tarp a load manually than to tarp with a Fully Automatic Tarping System. It takes about 30 seconds to tarp a load with a Fully Automatic Tarp System whereas a manual hand tarp could take 10 minutes or more to unfold the tarp, climb up on the load, unroll the tarp, climb down the container, unpack the rubber straps, and secure the straps onto the container. And magnify the time and effort required by 50 to 100% in cold, rainy, windy and snowy conditions. All of these factors are a real consideration and cost your operation money when you multiply by 2 for the time to cover and uncover, and then again by 10 loads per day! The best case for a Fully Automated Roll off Tarping System is 2 x 30 seconds x 10 loads per day = 10 minutes total; the worst case for a manual hand tarp is 2 x 10 minutes x 10 loads per day = 2 hours and 20 minutes. A savings of 2 hours and 10 minutes each day would pay for a Fully Automated Roll off Tarp System in less than 2 months. A Semi-Automated Tarp System falls somewhere in between the example above, taking about 5 minutes to cover and uncover a load.   In this case, the $3500 up-front cost difference between an Fully-Automated and Semi-Automated Roll off Tarping System could again be made up in efficiency within 2 months.   

Tip #1 Safety - Safety of the driver/operator is of utmost importance and therefore is Tip #1. The height above ground for a 20 to 40 yard container is between 8 and 13 feet. A fall from this distance could injure at best or cause a fatality in the worst case. The cost of a lawsuit, workman's comp, and employee down time or non-productivity after an accident  is not worth the risk of allowing an employee to climb up on top of a 13 foot high container full of garbage or demolition or muck.  

The risk obviously intensifies again when it is raining or snowing or the wind is gusting. There have even been serious injuries when operating a Semi-Automatic Roll off Tarping System due to the operators losing their footing from the strong spring force that is pulling the tarp and themselves, especially when a gust of wind lifts up on the tarp like a parachute. Operators have also fallen backwards when the rope has snapped or come untied and have broken bones.   

The conclusions involving cost and risk of using manual hand tarps and Semi-Automatic Tarp Systems lead to overwhelming justification to invest in the higher up front cost but lower overall lifetime cost of a Fully Automated Roll off Tarping System which in the end is a far better value for productivity, efficiency, safety and cost.

Robert Wood is an experienced business leader with expertise in selling, manufacturing, and engineering proprietary technology products. He is a behavior and marketing consultant, engineer, inventor, entrepreneur, and U.S. Army veteran with cross-functional expertise in strategic planning, personnel motivation and management, mergers & acquisitions, web site development, 3D modeling, patent writing and defending, and online advertising & marketing. You may contact Robert through http://www.StreetSmartTarps.com/ and follow his Street Smart Business blog at http://www.streetsmartbob.blogspot.com/

Off-Road Tyres & Tread Patterns

 Bridgestone

ED 11 / 12 Real Enduro race tyres that can also be used on public roads. Terrific traction conform to FIM regulations.
These are real Enduro race tyres with dynamic block patterns and motor cross compounds. Ideal for Enduro competitors who need off-road performance.

ED77 / 78 A heavy-duty reinforced enduro style intended for serious offroad competition. Specially designed to handle a variety of changing non D.O.T. trail conditions.

M403 / M404, Specifically designed for varying intermediate terrain applications Redesigned center and shoulder blocks offer better control at all lean angles Long lasting center compound and softer side block compound for superior cornering grip and traction Tube Type

MOTOCROSS M201 / M202 / M203 / M204 SOFT TO MEDIUM,  M201 Revolutionary tire-design technology provides comfort and bite in a broad range of soft terrain applications Computer-designed block placement for self-cleaning performance Race-proven pattern gives outstanding performance on today's MX and off-road courses Reverse Cap/Base compound -- shock-absorbing softer base capped with ultra high traction surface .

MOTOCROSS M604/ M603 / M602 / M601 / MEDIUM TO HARD, Outstanding performance on today's firm base man made courses New tread pattern cuts through loose terrain to find traction and grip on a firm base Long lasting center compound and softer side block compound for superior cornering grip and traction Tube Type

ED668/ED663 FIM APPROVED ENDURO - STREET LEGAL & PASSES M.O.T,  ED (Gritty) Series (80% off-road/20% on-road) ED 663/668 specifically designed for intermediate to soft conditions .

MOTOCROSS M101 / M102 DEEP SAND & MUDDY GROUND, Matching front and rear combination designed for deep sand and bottomless mud. Rear tire paddle-like pattern for traction in extra soft conditions.

MOTOCROSS M401 / M402 Medium Ground, Specifically designed for varying intermediate terrain applications Redesigned center and shoulder blocks offer better control at all lean angles Long lasting center compound and softer side block compound for superior cornering grip and traction Tube Type .

CHENG SHIN

C858, Ideal for a budget priced replacement . Popular on/off road tread pattern Tube type Tough 4-Ply construction.

COUGAR

D991, another budget tyre, though works well in soft ground..

DUNLOP

D739 front tire delivers outstanding performance in hard-pack conditions and improved cornering grip in all terrain.
Rear tire provides excellent center-tread traction for impressive start/acceleration grip, plus improved braking and lean-angle traction.

773, The rear tyre's paddle-style tread block configuration gives the extra drive that's required in the soft stuff and makes the D773 the tyre of choice in sand and soft mud. The front tyre pattern features unique tread blocks that give a smooth ride through the ruts. The D773's proven racing pattern was developed with top international motocross riders at the most demanding soft terrain tracks. New aggressive pattern and specially formulated compound improve cornering grip and straight-line traction in sand and mud.

Geomax Enduro, Utilising the experience of Europe's most talented riders, Dunlop has developed the Geomax Enduro to give increased traction, superior corner grip and improved wear on all type of terrain. Developed to conform with F.I.M. regulations, both front and rear tyres can be used at all levels of Enduro competition. The Geomax Enduro utilises larger gaps between knobs and a very different shape of block to increase traction in terrain varying from hard pack to soft ground but it's especially good on the grassy terrain so common in UK enduros. Tread durability is excellent.

D756 MX COMPETITION SOFT TO INTERMEDIATE TERRAIN, Dunlop's best selling MX tyre because it's the perfect choice for the vast majority of UK motocross tracks. The comprehensive shoulder block configuration provides extra grip when leaned over, in order to encourage faster cornering. The rear tyre's centred tread pattern gives the rider straight-line drive and stability for excellent starts and improved braking. Reduced tyre weight produces less unsprung mass for faster turning and acceleration. Exactly the same technology we use to design and make the full-size, MX3 world championship-winning tyres goes into every mini-bike D756.

D908RR DESERT COMPETITION / CROSS COUNTRY & GEOMAX ENDURO FIM ENDUROCOMPETITION ROAD LEGAL, The D908 RR offers exceptional durability for racing or cross-country rides and its performance on rocks, hard ground and sand is unbeatable. Thanks to its high levels of grip and exceptional wear characteristics the D908 RR is the ideal choice for serious trail riders. The reinforced central blocks deliver excellent traction and incredible stability at very high speeds as well as in turns on surfaces from hard pack and road sections to sand. The increased open space around the shoulder area provides ultimate traction in the sand and mud. The D908 RR incorporates a very heavy-duty casing for improved bump absorption and puncture resistance. This reinforced construction allows lower air pressures for larger tyre footprint. The highly durable tread compound is engineered for rugged off-road performance and also for satisfying road usage. The D908 RR is very predictable and very progressive when sliding in high-speed turns.

TRIALS COMPETITION D803, Totally redesigned tyre profile, along with suppleness, strength and grip revisions improve competition performance. Even when the tread knobs have lost their sharp edges the D803 still finds traction on rocks. The D803 absorbs greater impact from the terrain and has optimum rebound force. New, more supple casing and refined rubber compounds give increased traction and better shock absorption. Stiff bead and a flexible crown provide better rear rim stability, allowing tighter turning ability. This also leads to an improved tendency for the rear tyre to stay on rim when totally deflated - an important consideration in long-distance trials.

KINGS

KT-9601. A 4-ply front tyre with excellent durability and traction on intermediate to soft terrain. The SM-9601 features widely-spaced knobs that clean out easily to keep you driving forward. Race tested by professional riders.

KINGS TYRES KT-965, A range of motocross tyres giving you quality with economy. The KT-965 Kings is a well proven pattern, designed for long life and maximum grip. The compound material of the kings is suitable for use on intermediate terrain, so will suit a wide range of riding applications. This tyre features a strong side wall to eliminate rolling and has high resistance to impact punctures.

 

KY0T0

KY0T0 ENDURO,All new F.I.M improved E-marked enduro tyre, fully tested by the top enduro riders in Europe, provides excellent grip and lasts as long as other well known branded tyre.

M51 Kyoto / X-Pattern, A well proven pattern developed for long life and maximum grip, the compound of the X-pattern is designed for sand to firm ground, an all round good tyre with economy in mind.

MAXXIS

M7304 & M7305 New knob design offers precise steering for a wide variety of soil conditions. Front and rear tyres combine for best overall performance..

M7307 & M7308 Computer-enhanced tread design ensures optimal traction in sand and mud. Specially formulated silica rubber compound and open tread pattern provide excellent self-cleaning tire characteristics. Anti-flex knob bridges on shoulder reinforce side knobs for increased traction. Tube Type.

M7311 & M7312 Race-proven rubber compound delivers excellent traction in soft/intermediate conditions. Anti-flex knob bridges on side lugs offer solid straight line stability and enhance grip for aggressive cornering.  Developed during Grand National Cross Country series.

 METZELER

MC 5 MEDIUM TERRAIN,

All-round motocross competition tyre tuned for "intermediate" terrains Great braking performance for late and hard braking entering into corner with high stability Strongly reinforced half shoulder blocks: maximised traction on different terrains ensuring effective acceleration even at full lean Great control when sliding into corners thanks to progressive contact feeling .

MC4 SOFT TO HARD,

Motocross competition tyre for enhanced performance tuned for soft to medium terrains . Excellent lateral stability and fast cornering, carving precise trajectories thanks to the intersected shoulder blocks Superb traction especially on soft, loose terrains for great accelerations out of corners Tread compound optimised for soft grounds featuring great stability especially when hard braking .

MCE KAROO & MCE KAROO T (ENDURO STREET), Multipurpose off road tyre with maximal adaptability that makes everything possible:
from the sand of desert rallies to the asphalt of road touring

KAROO : Knob distribution developed for impressive traction in off-road use together with great high speed stability on-road Handling characteristics with smooth corner entry and stable leaning for optimum control when cornering Excellent mileage capability even if used on-road and great adaptability to different bike's load conditions KAROO T :Knobby tyre for high performing enduro bikes designed to satisfy both the most
demanding Travellers needs highlighting a strong off-road appeal Dedicated geometry and distribution of knobs perfectly combining reduced noise and enhanced braking stability especially with ABS braking systems Larger size and reduced height of knobs developed for higher traction and improved high speed resistance and mileage Top performance on-road: outstanding handling perfectly combined with a great cornering stability at all lean angles .

ENDURO 3 SAHARA (ENDURO STREET),

Enduro tyre with very good on-road performance dedicated to the globetrotters always looking for fun riding no matter what the terrain is Dedicated tread compound perfectly combining safe on-road cornering grip and good off-road traction Tread pattern geometry designed for fast self-cleaning: stable and precise trajectories without skidding also on soft, muddy terrains Great handling with easy corner entry, stable cornering and high safety margins when riding at the limit .

MC 6 HARD TERRAIN,

Motocross competition tyre for enhanced performance tuned for medium-hard to rocky
terrains Tread pattern design optimised for great grip on medium-hard grounds, with reduced skidding even riding on stones or watered tracks Good self-damping allowing great trajectory precision, "flying" over stones and obstacles Maximum contact feeling in all conditions for constant grip during hard accelerations .

MCE 6 DAY EXTREME (ENDURO COMPETITION),

World champion Enduro F.I.M. tyreThe ultimate off-road tyre developed with World Champion factory riders for the most extreme conditions New High Resistance Polyester carcass-material with X-ply construction for superior structural characteristics and excellent puncture resistance . Knob distribution and geometry designed to offer outstanding gip and traction with high resistance both in dry and wet condition, form soft/loose terrains to hard .

MICHELIN

AC10 ROAD LEGAL OFFROAD, Michelin's road legal motocross tyre MST & E-Marked .

HP4/SAND4, Starcross® HP4 tires are designed for hard-packed, extreme "blue-groove" conditions. Starcross® HP4 tires feature innovative knob patterns designed to help maximize cornering traction on hard-pack. The wide 90/100-21 front Starcross® HP4 tire (as opposed to the typical 80/100-21 size) provides a larger contact patch that enhances predictability in blue groove conditions. The taller, wider front casing also provides greater air volume for absorbing hard landings.Sand 4 Rubber mixture is designed to perform well even in cooler temperatures. Designed for low inflation pressures-can be used as low as 12 psi. Specific knob pattern for 125 2-stroke and 250 4-stroke increases float to avoid power loss. For use with S12 or MS3 front tires.

M12 MEDIUM GROUND, Ultra durable rubber mix offers outstanding resistance to wear. Massive blocks resist tearing and chunking under the worst conditions.

T63 ENDURO STREET,More off-road-oriented than the Sirac, the T63 is also a smaller counterpart of our full-size trail tyre. With its large tread blocks, small bikes can take on more challenging terrain without getting stranded.

ENDURO COMP MS/4/3, An excellent all-around rear tyre, the Enduro Competition III is a favourite of World Champions. The unique block design, along with a carcass that’s both supple and durable, help give the Enduro Competition III superb performance on a variety of terrain. Side blocks are designed for aggressive cornering and precise steering in mud. Tall blocks grip even in the deepest mud holes.

JUNIOR STARCROSS MS2 & MH3, MS 2 Tubed Crossply Tyre, for soft ground. MH 3 Tubed Crossply Tyre for hard ground. MH3 Massive blocks resist chunking on hard tracks. Reshaped side blocks provide excellent grip at extreme lean angles.The Michelin Star cross MS3 motocross tyre has been designed to put the maximum surface area on the ground, combine this with the grooved central tread block and it gives you some of the best grip around on hard surfaces.

S12 MX SOFT GROUND,Innovative tread design with lateral knobs spaced at a wide angle from the tire's center-line, for incredible cornering stability. High, narrow knobs for mud penetration. Reinforced knobs resist most chunking. Knobs turned 45° for efficient mud evacuation. Differential rigidity casing is designed to minimize rebound, so the tires spend more time on the ground—for enhanced acceleration, braking and steering .

STARCROSS MS3 SOFT GROUND / MH3 HARD GROUND,

MS3 The Michelin Star cross MS3 motocross tyre has been designed to put the maximum surface area on the ground, combine this with the grooved central tread block and it gives you some of the best grip around on hard surfaces.

MH3 Massive blocks resist chunking on hard tracks. Reshaped side blocks provide excellent grip at extreme lean angles.

TRIAL COMPETITION, With 24 World Championships since 1981, the Trial Competition is the acknowledged leader in the sport. Extraordinary suppleness, grip and strength make the Trial Competition a favorite of both pros and amateurs.

MITAS

C10  A tread pattern for rear wheels of cross motorcycles for a semi-hard to hard terrain. C11 A tread pattern for front wheels of cross motorcycles for a semi-hard terrain. C12 A tread pattern for rear wheels of cross motorcycles for a semi-hard to soft terrain.C13 A tread pattern for front wheels of cross motorcycles for a semi-hard to soft terrain. C14 A tread pattern for rear wheels of cross motorcycles suitable particularly for a very soft terrain.

C15 A tread pattern for front wheels of cross motorcycles for semi-hard to soft terrains.C16 A tread pattern for the rear wheels of cross motorcycle suitable for stony and very hard terrain.DOT and ES 75 approved, 80% off-road, 20% on road. C18 and C19 Medium hard to soft ground. C20 Medium hard to hard ground.

EF 05 A modern type of rear type tread pattern for Enduro FIM races suitable for wide range of terrains. Very good grip properties and very low abrasion even in hard terrain. EF 06 A modern type of front tyre tread pattern suitable for wide range of terrains Excellent grip properties and very low abrasion even in a hard terrain. Suitable also for cross and sidecar cross.EF 08 Modern block type of tread pattern for both front and rear wheels of enduro motorcycles. Very good riding properties both on the road as well as in a less demanding terrain.

 

ET 01 A new tread pattern for trial races. Suitable for both front and rear wheels of trial motorcycles. C 02 A tyre for rear wheels of cross and sidecars motorcycles possessing very good riding properties in a harder ground terrain.C 04 A rear motocross tyre for a medium soft to semi-hard terrain. Its tread pattern offers optimum riding properties under all modes of operation.

PIRELLI

MT 43 Conventional tyre for amateur, optimum performance on hard, wet and dry terrain even in indoor events,reinforced carcass to reduce the deformation and maximize the footprint on every type of terrain.

SCORPION EXTRA, Excellent traction and self-cleaning properties to push from the start;  
Extreme directionality and stability to keep the perfect trajectory; 
Constant and stable performance lap after lap during the race.

SCORPION MX MID TO HARD 454, Excellent traction even on changing terrain conditions to get the maximum speed; Extreme grip and directionality for an outstanding lateral sliding control; Reduced weight for a best jump control.

SCORPION MX SOFT 410, Excellent traction and self-cleaning properties to push from the start;   Extreme directionality and stability to keep the perfect trajectory;  Constant and stable performance lap after lap during the race.

SCORPION MX HARD 486, Maximum grip in starting and acceleration and cornering; Extreme braking performance for a delayed corner entry even in the fastest tracks; Reduced wear for constant performance till the end of the race.

SCORPION MX MID TO SOFT 32, Extreme traction to keep always the maximum speed on medium to soft terrains; Maximum stability to carve new trajectories; High performance consistency even in severe racing condition.

SCORPION PRO, Improved materials for restistance to tearing, cuts, abrasion and wear. Balanced construction for the right compromise between strength to endure fatigue and softness when surmounting obstacles. Optimised distribution and geometry of pattern's knobs for the adequate traction and braking.

motopsychos.co.uk hope this information is of use to you and helps you decide what off-road tyre you need, you can see images of all the off-road tyres listed above by visiting www.motopsychos.co.uk   .

You can click this direct link to the offroad tyre section here - http://www.motopsychos.co.uk/off-road-tyres-105-c.asp

Thank you for reading .

Stephen Bonnici

 

 

About the Author

....Think of Chrysler's Long Cross Ram-Induction with 2-4 bbl's?

A couple of years ago, a neighbor of mine had a 1962 Chrysler Newport convertible.One day I stopped in to see what he had under the hood. To my amazement, it turned out to be a .030 over 440 with those big cross rams and 2-4 bbls. It also had an Iskenderian Mega Cam (.485 lift,280degrees dur.) and a factory dual point distributor.( 11.7 to 1 comp.) This car weighed over 4500 lbs. 120 MPH was no problem and the tires lit up off the line pretty nice too.
Are their many of these cars left on the road these days?

The 440 was not original in 62, it would have been a 413 wedge with the cross ram. But no, there are not many of these sleds on the road. They have long since been scrapped or are in collections. When you see them on the road they are usually restored or very well kept originals. Sought after cars, such as this, generally carry a high price tag which keeps their owners from driving them around as daily drivers.

Ask Nick: The joys of hand-built wheels, flat-fixing tips and TDU training
The joys of hand-built wheels, flat-fixing tips and TDU training

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