UF

100

8E

24/7 HELPLINE+31 (0) 512 585 555

DUNLOP UsFlex®T H E W O R L D S T A N D A R D I N

Q U A L I T Y A N D R E L I A B I L I T Y

italy Telephone: +39 (0) 340 3008381 • Fax +39 (0) 39 990 72 34 united kingdomTelephone: +44 (0) 7951 070800 • Fax: +44 (0) 1253 766420

www.dunlopconveyorbelting.com

holland (head office)Telephone: +31(0) 512 585 555 • Fax: +31(0) 512 524 599Dunlop Conveyor Belting • Oliemolenstraat 2 • PO Box 149200 AA Drachten • The Netherlands

franceTelephone: +33 (0) 13055 3903 • Fax: +33 (0) 13054 0238Dunlop Conveyor Belting • 122 Rue des Cerisiers • ZI Sainte Appoline78370 Plaisir • France.

spainTelephone: +34 (0) 93 805 54 46 • Fax: +34(0) 93 805 42 69Dunlop Conveyor Belting • C/ Galicia • 7 1ª planta 08700 • Igualada (Barcelona) • Spain.

russia Telephone: +7 495 223 6718 • Fax: +7 495 223 6719Dunlop Conveyor Belting • ul.Bolshaya Pochtovaya 26B • office 405 105082 Moscow • Russia.

belgium Telephone: +32 (0) 477 698295 • Fax +32 (0) 56 55 8385

germany Telephone: +49 (0) 172 9729302 • Fax +49 (0) 2821 973 419

All data and recommendations in this brochure have been supplied to the best of our knowledge, as accurately as possible and updated to reflect the most recent technological developments. Some products may have been rendered obsolete in the light of more recent technological developments. We cannot accept any responsibility for recommendations based solely on this brochure.

Dunlop UsFlex® is the world standard in heavy-duty industrial conveyor belting. Its innovative, straight-warp car-cass construction surpasses traditional multiply belts in virtu-ally every respect, creating a belt that has outstanding opera-tional performance over a long life span. A single UsFlexply more than matches the strength of several traditional multiply layers.

The UsFlex construction consists of extra-heavy strands of polyester running lengthwise, with nylon running crosswise. The strands are completely straight in both directions and are therefore not intertwined unlike traditional woven carcasses. This results in maximum protection of the warp through the weft, with minimal stretch, both lengthwise and crosswise. As there are no multiple plies, the result is a lightweight belt with maximum tensile strength.

DUNLOP USFLEX® CONVE YOR BELTSUNRIVALLED IMPAC T, RIP AND TEAR RESISTANCE

superior impact resistanceWhen compared to conventional multiply belts with a similar tensile strength, UsFlex stands out with its superior impact resistance. The maximum impact energy of a single ply UsFlex type 630/1 is comparable to that of a 4-ply EP belt type 1600/4.

superior rip resistanceUsFlex has a rip resistance that is more than four times greater than conventional multiply belts that have a similar tensile strength. The rip resistance is not only superior in relation to the multiply EP belts, but also when compared to Solid Woven.

superior tear resistanceThe tear resistance of UsFlex also leaves conventional multiply belts with a comparable tensile strength far behind. The tear resistance is measured according to the international ISO 505 standard.

some of the key features of usflex include:• UNRIVALLED IMPACT, RIP AND TEAR RESISTANCE

• HIGH STRENGTH

• EXCELLENT LOAD SUPPORT

• OUTSTANDING TROUGHABILITY

• LIGHTWEIGHT

Ultra-strong straight-warp construction

warp

binder

weft

LOWER COST PER TON .. . AND THEREFORE MORE COST-EFFECTIVE FOR NUMEROUS APPLIC ATIONS.

Because of its outstanding operating performance and life span. UsFlex is an extremely cost-effective solution. A lighter belt type can be used in many applications due to its excellent operational characteristics and finger splice efficiency. The combination of these factors has been proven to result in exceptionally low operating costs per ton.

value for money – guaranteedUsFlex has been a proven success for many years throughout the world. For example, a large stone quarry had been using traditional conveyor belts for the crusher area, which is the most demanding of applications. The average life span of these belts had been 4 months. As a consequence the belts were replaced with a heavier type of multiply EP belt resulting in a marked reduction in operational costs but with a life span of less than 12 months. After a thorough inspection by Dunlop’s Application Engineers, UsFlex was recommended and installed with amazing results. After 3 years, the UsFlex belt was still successfully operating, resulting in a reduction in cost per ton of more than 80%.

usflex with finger splice – producing exceptio-nal operating performance and durabilityIn conventional multiply belts, the strength of the belt is often determined by the strength of the splice. UsFlex puts an end to this traditional weak spot. Instead of using the traditional hot or cold vulcanised step splice, the finger splice method can be used with the most spectacular results. The Dunlop finger splice has an efficiency factor of more than 90%. This is largely due to the actual splice materials, which have been specifically developed for UsFlex. By comparison, a step splice has an efficiency of 66% for a 3-ply belt type. Making a good finger splice is actually quite easy to learn but it does require technical training. At Dunlop we are more than happy to share our knowledge and experience with our customers.

Although UsFlex with finger splice is supremely reliable, the conventional ‘step’ and ‘mechanical’ splice joints can also be used. Please ask our Application Engineering department for the best splicing joint for your application.

usflex – the best possible guarantee for reliability in a wide variety of industries including:• QUARRIES• MINING • CEMENT • WOOD, PAPER & PULP • RECYCLING

It is for very good reason that we call Dunlop UsFlex “the world standard in industrial conveyor belts”. With its robust construction, it is the ideal conveyor belt for particularly heavy applications. The low cost per ton also makes UsFlex an especially cost-effective alternative for numerous applications in a wide range of industries.

* Diameter for belt loads from 60% up to 100%. For lower loads a smaller diameter can also be suitable.** The load support of a belt is a factor of the belt width, belt strength and bulk material density. The table indicates the limits for correct load support based on three idlers of the same length set at 30°.

UF 400/1 2.4 2.6 315 250 200 4 + 2.5 650 1600 1400 1200 1000

UF 500/1 3.3 3.7 400 315 250 6 + 3 800 2000 1800 1600 1400

UF 630/1 3.4 3.9 500 400 315 6 + 3 800 2200 2000 1800 1600

UF 800/1 4.0 4.5 630 500 400 6 + 3 800 2200 2200 2000 1800

UF 1000/2 6.5 7.2 800 630 500 8 + 3 1000 2200 2200 2200 2200

UF 1250/2 6.8 7.7 800 630 500 8 + 3 1000 2200 2200 2200 2200

UF 1600/2 10.3 8.7 1000 800 630 8 + 3 1200 2200 2200 2200 2200

Belttype

(N/mm)

Carcassthickness

(mm)

Carcassweight(kg/m2)

*Pulley diameters Mincover

thickness

**Minwidth(mm)A (mm) B (mm) C (mm)

carcass thickness and drum diametersThe carcass thickness of both UsFlex I & II is similar or smaller than those of comparable multiply EP conveyor belts from Dunlop. For example, the UsFlex 400/1 carcass has a thickness of 2.4 mm, compared to 3.0 mm for the EP 400/3. As a result, the required drum diameter may be smaller in some cases. For more detailed information please also refer to the data table shown in this brochure.

cover qualitiesUsFlex is available in the RS (extra wear resistant) cover quality. Other qualities, such as oil, fire and heat resistant covers are available upon request.

Belt selection - The correct choice of belt type and cover quality is dependent on several different factors. To enable the correct belt type to be chosen, it is very important to provide as much information as possible. The final choice from the available options for each application will depend on the actual working conditions, which may differ quite significantly from location to location.

unrivalled technical support and guidanceWhen you buy from Dunlop you get more than just quality conveyor belts because we have one of the largest, most experienced and highly trained teams of conveyor belt specialists and application engineers in the industry.

Dunlop provides an unrivalled level of customer service, visiting our customers on-site, providing advice, guidance and practical support including:

• SITE VISITS AND SURVEYS• BELT CALCULATION SERVICE• TECHNICAL TRAINING (ON-SITE AND DUNLOP BASED)• SPLICE TRAINING• TROUBLE SHOOTING AND PROBLEM SOLVING• IN-HOUSE RESEARCH, TESTING AND DEVELOPMENT• AFTER-SALES SUPPORT

Our 24-hour Helpline means that we are never more than a phone call away when our customers need our help or advice. This service is extremely well supported by our extensive network of highly reputable Dunlop Authorised Distributors, Vulcanisers and Approved Agents.

we are here to help!If you have any concerns or questions, please call our Application Engineering Department on +31 (0) 512 585 555.

available tensile strengthsUsFlex I : 400 - 800 N/mmUsFlex II : 1000 - 1600 N/mm

Top cover

Carcass

Bottom cover

Top cover

Carcass

Bottom cover

Skim

UsFlex I UsFlex II