vectran round slings suprime vectran... · 2019-09-27 · vectran : ultra-powerful polyarylate...

VECTRAN ROUND SLINGS

SliHBO .1.1.!i!tia!� li!l=I SUHBO INDUSTRY CO.,LTD.

SUHBO INDUSTRY l 47

Various Webbing belts

Hookes [ Fittings ]

SBH-12Chassis HookCapacity : 5000kgs

SBH-132ﾓRing Flat HookCapacity : 4000kgs

SBH-142ﾓRing HookCapacity : 5000kgs

SBH-152ﾓFlat HookCapacity : 5000kgs

SBH-16Snap HookCapacity : 11000lbs / 5000kgs


SBH-18End HookCapacity : 1500kgs

SBH-19Hook & KeeperCapacity : 3000kgs

SBH-201ﾓDouble J HookCapacity : 2500kgs

SBH-11Double J HookCapacity : 5000kgs

SBH-211 1/2ﾓ Double J HookCapacity : 2500kgs


SBH-23S HookCapacity : 800kgs

SBH-243ﾓDouble J HookCapacity : 10000kgs

SBH-25Flat HookCapacity : 6800kgs

since it was established in 1985, suhbo industry Co., Ltd. has professionally manufactured round slings, belt slings and ratchet lashing system in addition to diverse webbings customized for order specifications of customers and all the products are manufactured in the best quality through perfect quality management system and effective production management. suhbo industry Co., Ltd. is executing strict quality management by stage over the whole production process of the company from design, sewing, assembly and inspection to final packing and shipment.

As safety certification marks, suhbo industry Co., Ltd. has acquired “s” mark of Korea, “CE” mark of EU as well as “isO” and acquired Japanese industrial standard (Jis) mark in 2002 and also the new “Jis” mark in 2008. the product manufactured by suhbo industry Co., Ltd. is covered by product liability insurance of 200 million Korean Won and suhbo industry Co., Ltd. is guaranteeing safety of the product manufactured by the company to all the customers.

Suhbo InduStry co., Ltd.

HISTORY Established Suhbo Industry (Seoul) Moved into a new expanded factory (Yongin, Gyeonggi-do) Acquired a patent for round sling manufacturing technology Selected as a superior small/medium company by KOTRA Started export of round sling to Kawades Steelworks (current JFE Steelworks), which lasted up to now Acquired CE mark of Europe and “S” mark of Korea (round sling, lifting sling) and started export to 8 Countries Acquired Japanese Industrial Standard (JIS) mark (for the first time among non-Japanese companies) Acquired ISO certification Acquired S mark of Korea Occupational Safety and Health Agency for round sling

1985. 9 1992. 91995. 111996. 61996. 61999. 92002. 42005. 102006. 2

- Polyester round sling (10 ~ 40 ton)

- UHMWPE round sling (10 ~ 40 ton)

- Suprime round sling (10 ~ 40 ton)- Suprime round sling (2 ~ 40 ton)

Acquired JIS mark for belt slingAcquired a patent for round sling manufacturing method and its device.

2008. 92011. 2

CONTENTS1.ROUND SLINGSuprime Tex Round SlingSuprime-Multl Round SlingPolyester Round Sling- Japanese Standard- The European Community CEN Standard

The Best Stability

The Maximum Lightening

The Optimum Handling Efficiency

Ultra-powerful special round sling

Round Sling

Round Sling made ofSpecial Fiber

• Being made by rotating ultra-powerful fiber in the form of a circle (endless type)in order to overcome the shortcoming of the existing wire rope, it is stronger thana wire rope, the shape is mild and flexibility is excellent.

• It is used for transfer, loading and unloading of cargo from small and big objectsto large cargo in the whole industrial fields.

8 l SUPRIME

ROUND SLING

A round sling is composed of inner thread which maintains strength and skin which wraps the inner thread in the form of a tube in order to protect it.

• Inner thread : It is ultra-powerful special fiber made by twisting fine fiber intoa fixed thickness and rotating it in the form of a circle (endless type) in orderto maintain strength of a round sling.

• Skin : Though skin takes the role to wrap the inner thread in order to preventit from being damaged, it does not have any effect on tensile strength.

Structure of SUPRIME Round Sling

Inner skin Outer skinInner thread

Length m

SUHBO INDUSTRY l 9

Reduced weight of the slingIt is very easy to handle SUPRIME Round Sling as its weight is about 1/8 of a wire rope.

In case the load applied is 50 ton x 10 m

Use Efficiency of SUPRIME Round Sling

Low elongationSUPRIME Round Sling maintains stability during handling of cargo as the elongation is low, even though it is made of fiber. • Polyester round sling : 12 ~ 16 %• Wire Rope : 1.0 % or less•Suprime Round Sling : 4 % or less

Efficiency of work • Increased simplicity of work : As the weight of a round sling itself is light, lifting work becomes simple and

convenient and risk of injury is also reduced.• Fast lifting work : As it is light and flexible, the time required for lifting work is reduced.• Reduction in labor : While a number of workers or equipment should be mobilized for slinging work when lifting a large

cargo using a wire rope, the work can be easily handled by one or two workers when Suprime Round Sling is used. • Reduction in cargo damage : As the material is soft fiber, it does not cause any damage to the cargo

during lifting work.

Suprime Polyester Wire Rope

34kg 92kg 250kg

Increased simplicity of work

Reduction in the overall work cost

Stability of cargo Reduction in applied quantity

Fast lifting workReduction in labor

Enhancement of work efficiency

10 l SUPRIME

ROUND SLING

Standard Product Type of SUPRIME Round Sling

N Type (Endless Type)

BodyConnecting partInner thread

E Type (Eye and Eye Type)

Joint partJoint partInner thread

E(eye) Length(EL)

SUHBO INDUSTRY l 11

Length m

Length m

12 l SUPRIME

ROUND SLING

Material of SUPRIME Round Sling

Vectran : Ultra-powerful polyarylate fiber

Unique characteristics coping with diverse conditions• Ultra-powerful high strength fiber

• Excellent abrasion resistance and flexure resistance

• Excellent impact resistance

• High elasticity and low hygroscopicity (It almost does not get wet.)

• It has a high strength retention rate (%) even under the environment of

extremely low temperature and high temperature.

• It has excellent dimension stability.

SUHBO INDUSTRY l 13

Comparison of characteristics of high functional special fibers (※Suhbo Industry Co., Ltd. has acquired “S” marks for all high functional fibers.)

Comparison of abrasion resistance of high functional fibers

• Though Heracron is an aramid fiber like Kevlar, it is inadequate for large round sling as it easilybreaks and cracks.

• Dyneema (UHMWPE) is not used as material for a round sling as, though it has a goodabrasion resistance, it is easily hardened when the sling material and metal fittings are rubbedtogether causing deterioration of strength because it has a low melting point.

Manufactured by

Product Certification

Strength (G/D)

Elongation (%)

Melting Point

Specific Gravity

Abrasion Resistance

Strength Deterioration due to UV ray

Strength Deterioration due to Seawater

Strength Deterioration due to Acid and Alkali

Kuraray, Japan Teijin, Japan Kolon, Korea Netherland

‘s’ mark certification ‘s’ mark certification ‘s’ mark certification ‘s’ mark certification

26.5 -28.5 2.45 – 26.5 22 - 23 26.5 – 34

4 % or less 4 % or less 4 % or less 4 % or less

380 °C 450 °C 450 °C 130 °C

1.38 1.41 1.40 0.97

Excellent Normal Low Excellent

Almost none Almost none Almost none Almost none



※ Data source: Toray Co., Ltd., Japan, Ministry of Knowledge Economy

Number of Tests

Strength RetentionRate (%)

2,000 3,000

83.3 81.2

2,000 3,000

83.32 -

2,000 3,000

67.0 59.0

2,000 3,000

42.6 34.4

2,000 3,000

86.9 82.2

Material Vectran(poly arylate)

Technora(aramid)

Heracron(aramid)

Dyneema(UHMWPE)

Fiber Name Vectran Dyneema Technora Kevlar Polyester

14 l SUPRIME

ROUND SLING

Abrasion resistance test

Stop

LOAD STATUS Abrasion

fitting

Load

Stop

Hoi

st d

ista

nce

38 38 38 38

12

↙ ↘

↓↑

Load : 3200kg

Lifting speed : 7.2m/min

Metal fittings : R=5mm

Angle : 60°25

0

Descending

Asce

ndin

g

Asce

ndin

g

1000 2000 3000 4000 5000

100

80

60

40

20

0

● Polyester

● Vectran

● Dyneema

● Technora

● Zylon

● Kevlar

SUHBO INDUSTRY l 15

※ Weight : Ton/m (±5 %) (Example) : Weight of SUPRIME for 50 ton x 10 M = 3.4 x 10 M = 34 kg

Nominalsafety working

load (ton)

Skin diameter (mm)

Outer diameter (Φmm)

Weight (kg)

10 20 30 40 50 60 80 100 130 150

65 75 87 98 110 120 140 160 185 205

41.5 47.8 56.0 62.4 70.0 76.5 89.2 101.9 117.8 130.6

0.79 1.41 2.03 2.72 3.40 4.10 5.50 6.90 9.00 10.40

Straight Lift Knot Tie Lift Basket Lift

Nominal safety

working load(Ton)

Nominal safety

working load(Ton)

Straight Lift

100%

Straight Lift

100%

Knot Tie Lift

80%

Knot Tie Lift

80%

BasketLift 45°180%

BasketLift 45°180%

BasketLift

200%

BasketLift

200%

10

20

30

40

50

60

10

20

30

40

50

60

8

16

24

32

40

48

18

36

54

72

90

108

20

40

60

80

100

120

100% of the safetyworking load




70

80

90

100

150

200

70

80

90

100

150

200

56

64

72

80

120

160

126

144

162

180

270

360

140

160

180

200

300

400

Strength of SUPRIME Round Sling by Lifting Type

Weight of SUPRIME Round Sling by Safety Working Load (Ton)

Basket Lift 45°

Multi Round SlingExTENT OF INNER THREAD DAMAGE CHECkED

Technical cooperation agreement between Toray Co., Ltd., Japan and Suhbo Industry Co., Ltd.

Product with world patent : Japan, Europe, USA

Features of MULTI Round Sling

SUPRIME Round Sling with use safety test function• The extent of inner thread damage in accordance with frequency of use of the

sling can be easily checked through silver coated fiber conductors insertedinside the inner thread of Suprime Round Sling.

Advantages of MULTI Round Sling Utilization

Stability• Outer skin of a general fiber sling

could take only the role of reducingthe damage of inner thread.

• The extent of inner thread damagecould not be checked.

• As ‘safety checking system’ whichcan easily judge damage of core isinstalled inside MULTI Round Sling,the extent of inner thread damageinside the sling can be frequentlychecked.

SUHBO INDUSTRY l 17

Conductiveelectric wires

Outer skin

Core

Safety test• In accordance with frequency of use of the sling, the core is damaged as

fatigue increases.

• As electrically conductive wires are inserted inside the core of the sling, thecondition of the inner thread can be easily known by checking the resistanceat the terminal attached on the surface using a tester as shown in the figurebelow

Economic practicality • The period of use can be extended by checking the fatigue and damage

condition of the inner thread while, in the past, disuse of a sling was decidedby visual inspection of the outer skin.

• Slings can be continuously used after repairing only the skin.

※ Briefly check whenever used.

18 l SUPRIME

ROUND SLING

Measurement terminal Inner skin Outer skinCore (inner thread)

Length m

Structure of MULTI Round Sling

• The structure is same as that of Suprime Round Sling. However, as silvercoated fiber conductors are inserted inside the core, the electric resistancevalue changes in accordance with frequency of use.

Result of checking the test function (example)

Length of Round Sling

4M

8M

10M

12M

Resistance

Can be safely used Checking required Ω To be repaired or abandonedΩ

Lower than 58 Ω Lower than 58 ~ 78 Ω Higher than 79 Ω


Lower than 144 Ω Lower than 144~ 198 Ω Higher than 199 Ω


Check!To be further

used

SUHBO INDUSTRY l 19

• Never use the sling for an object of which thesling contacting part is sharp. (※ 95% of safetyaccident is caused by cutting of the sling.)

• Be sure to check before starting the work.

• Never use the sling exceeding the nominalsafety working load marked on the label.

• Do not allow anyone to stand below the liftedobject or within the scope of danger.

• Be sure to attach protective sleeves at shapecorners.

• When using the sling with one end inserted intothe other end, be sure to fully tighten it and,when lifting the object using 2 slings or more,do not lift it slanted.

• Do not draw the object with the sling contactingthe bottom or do not pull out the sling whilebeing pressed by the object.

• If the sling is snatched to lift the object atinstantaneous speed, an extreme load will beapplied.

• Do not store slings in a place exposed to heat,sunlight or chemicals.

• When using the sling under a special condition,be sure to consult the matter with themanufacturer.

Regarding overall handling ofMULTI Round Sling

20 l SUPRIME

ROUND SLING

A round sling should be inspected daily and regularly without fail.

• Daily inspection : To be inspected before use

• Regular inspection : To be regularly inspected in accordance with frequency of use.

Outer skin damage

Damage of sewing thread at the sewing

thread connecting

part

Other damage of appearance

Damage of core

Service period

Protective sleeve

○ ○

○ ○

○ ○

○ ○

○ ○

○

Visual

Visual

Measurement(Test)

Visual

(To be scrapped) If outer and inner skins are apparently damaged to expose the core and inner thread is damaged.

(To be repaired) The sling of which the outer skin is damaged to expose inner skin shall be repaired by Suhbo if the core is found to have no damage after inspection.

(To be repaired) The sling of which sewing thread at the sewn part or connection part on the skin is loosened to expose inner skin shall be repaired by the manufacturer if the core is found to have no damage after inspection.

(To be scrapped) If the resistance value at the terminal of the joint is infinite, it shall be scrapped or inspected. If it is between 00 Ω and 00 Ω, it shall be continued being used. And if it is 00 Ω, it shall be used after being inspected and repaired. The resistance value for each sling is marked on the label.

(To be scrapped) Slings of which the skin shows apparent phenomenon of discoloration, coloration, melting or dissolution due to heat or chemicals or of which usability cannot be judged due to serious contamination.

(To be repaired) A sling which has been used exceeding the following service period in principle even though appearance or the inner thread shows no problem in accordance with the use condition of the sling. (1) When it is used only indoors, 3 years after start of use(2) When it is used only outdoors, 2 years after start of use

If protective sleeves are not effective as deformation or damage is apparent, the sling shall be scrapped.

Matters Inspected

Method of Inspection

Type of Inspection

Daily RegularScrap Criteria

※ As we will inspect used slings for you if you request us to do so, please contact us.

Inner thread

Damaged part

Surface skin

Surface skin

Surface skin

Stitched part

Inner skin

Inner skin

Inner skin

Safety inspection and scrap disposalcriteria of MULTI Round Sling

SUHBO INDUSTRY l 21

Effect of the thickness of sling and pin diameter on strength

• In case of Figures 1, 2 and 3, when same inner threads are filled, the strength of sling is in theorder of 1 > 2 > 3. That is to say, the wider the surface area is like no. 1 and the thicker thediameter of the pin (D) is, the higher the efficiency of the strength is.

Diameter of the pin

1 2 3

TRound slingThickness of sling

D Pin diameter(mm)

Example) In case the maximum load is 50 tons, the initial thickness of the sling is 35 mm and the thickness of sling when load is applied is 20 mm, and, if the diameter of the pin is 20 mm, the strength is decreased to 40 %. However, if the diameter of the pin is 80 mm, 85 % of the strength is retained. (*Data: Crane Association, Japan)

10 20 30 40 50 60 70 80

Diameter of the pin(mm)

100

80

60

40

20

0

Strength retention rate(%

)

To consider when using Round Slings

Use of round sling shackle for fiberWhen using a shackle for a round sling, a shackle for fiber had better be used.

• The thickness of the shackle is wide and flat.• As the curve of the shackle is gradual, it prevents the sling from being damaged.• It has high safety of use.

Protective sleeveProtective sleeves extend the life time of a sling.

• Angular parts• Parts contacting metal fittings• Parts being rubbed by the cargo.

22 l SUPRIME

ROUND SLING

0.5m

Joint Stitch form

tt

↓ ↓

0.5m

vectran round slings suprime vectran... · 2019-09-27 · vectran : ultra-powerful polyarylate...

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