Lift sling rigging company produce One Way Single Ply Endless Polyester Flat Lifting Webbing Sling,single ply endless flat sling,Endless 1Ply Flat Sling,One Way Endless Webbing Sling Single Eye For Lifting Steel Pipe And Tubing,1 Ply Flat PES Webbing Sling,.
One Way Single Ply Endless Polyester Flat Lifting Webbing Sling
A one way single ply endless polyester flat lifting webbing sling is a closed loop of flat woven polyester webbing – one ply, joined to itself, with no eye, no end and no fitting anywhere on the article. It is bought for one journey and supplied with the load rather than drawn from a sling store. Standard range: 1 へ 12 t working load limit on 4 mm webbing, 幅 25 mmから 300 mm at a 5:1, 6:1 または 7:1 要素, loop lengths 0.5 メートルから 100 メートル, colour coded to BS EN 1492-1 and supplied with a blue label stating the working load limit, 長さ, the factor and the batch.
Why a Loop Suits a One-Trip Band
The two halves of this name answer two different questions. 一方通行 is commercial: the band travels with the pack, is used once, and is not recovered or re-issued. エンドレス is structural: the band is joined to itself, so there is nothing to thread and nothing to align.
Put together, they answer what actually goes wrong at the far end of a consignment: the person re-slinging the load has no rigging plan, no sling store and no second choice, and a loop asks nothing of them.
- Nothing to align. An eye has to meet a hook of the right size the right way round. A loop is dropped over the load or passed round it, and the pick works whichever way it lands.
- Nothing to bruise a finish. No stitching stack at the bearing point, no thimble, no shackle in contact with the load. On coated pipe, anodised section or polished sheet that is the whole protection.
- Nothing to lose. A band with fittings can arrive with the fittings gone. A loop is one piece of webbing and it is either there or it is not.
- Nothing to get wrong on length. The one exception on this list, and it is the one that matters most – see the section on length below, because a loop is quoted two ways and they differ by nearly a factor of two.
仕様
| パラメータ | オプション |
|---|---|
| 製品 | One way single ply endless polyester flat lifting webbing sling / single ply endless flat sling |
| 形状 | Closed loop, flat woven, joined to itself; no eye, エンドフィッティングなし |
| 建てる | 単層 – one layer of webbing forms the whole loop |
| ファイバ | 高強力ポリエステル (PES); nylon and polypropylene available for specific duties |
| Web thickness | 4 mm規格 |
| 使用荷重制限 | 1 t – 12 t, 単層 |
| バンド幅 | 25 mm – 300 mm, set by the working load limit and the factor |
| 安全係数 | 5:1 / 6:1 / 7:1, selected at order |
| Loop length | 0.5 メートル – 100 メートル, minimum rising with the width |
| 色 | BS EN 1492-1 capacity colour; special colours and printed logos on OEM orders |
| ラベル | Blue label: 使用荷重制限, 長さ, 安全率, バッチ番号 |
| 寿命 | 一つの旅 – 回復していない, 再発行されていない |
| HSコード | 630790 |
サイズ設定: Width Follows the Figure and the Factor
Width is not a free choice: it follows from the working load limit and from the factor, which is why the same tonnage appears three times below with three widths. あ 7:1 band is wider and heavier than a 5:1 band of the same figure – that is the cost of the extra factor, not a different grade of webbing.
| WLL | 5:1 | 6:1 | 7:1 | 分. loop | kg/mで 7:1 |
|---|---|---|---|---|---|
| 1 t | 25 mm | 25 mm | 30 mm | 0.5 メートル | 0.20 |
| 2 t | 50 mm | 50 mm | 60 mm | 1.0 メートル | 0.60 |
| 3 t | 75 mm | 75 mm | 90 mm | 1.0 メートル | 0.78 |
| 4 t | 100 mm | 100 mm | 120 mm | 1.5 メートル | 0.90 |
| 5 t | 125 mm | 125 mm | 150 mm | 1.5 メートル | 1.14 |
| 6 t | 150 mm | 150 mm | 180 mm | 1.5 メートル | 1.33 |
| 8 t | 200 mm | 200 mm | 240 mm | 2.0 メートル | 1.85 |
| 10 t | 250 mm | 250 mm | 300 mm | 2.0 メートル | 2.05 |
| 12 t | 300 mm | 300 mm | 300 mm | 2.0 メートル | 2.70 |
The same width ladder, in the looped-end form, is published on the 使い捨てリフティングスリング ページ – useful when a consignment needs eyes at the top and a loop at the bottom, which is two articles rather than one.
Maximum length is 100 m in one continuous loop. Longer lengths, intermediate widths, extra-wide loops and special colours are made to order. Nothing in the table is a stock size: the figure, 要因, the width and the length together describe a band made to your line.
Two readings catch buyers out. の minimum length follows the width, トン数ではありません: 25 mmかかります 0.5 メートル, 50 そして 75 mmかかります 1.0 メートル, 100 に 150 mmかかります 1.5 私と 200 mm以上かかる 2.0 メートル. 柔らかい表面に対して広い帯域が必要な場合は、より長い最小値を受け入れることを意味します, ショートパックではどれが順位を決めるラインになるのか. そして、 weight column is a handling figure: 百メートル先のはしごの頂上で 300 mm band is over a quarter of a tonne, そしてバンドは何かを持ち上げる前に貨物として移動します.
長さ: the Two Conventions, and Why It Matters More Here
A loop has no ends to measure between, so this trade quotes the same article two ways: の 周 of the loop, そして length of the band laid flat. For the same sling the two figures differ by about a factor of two. Both are legitimate; only one of them is the figure you meant.
On a reusable sling the mistake shows up at the next lift and is corrected from the store. On a one-way band it shows up at the far end, in front of a customer, with no second band to swap in – which is why this is the single line worth getting right on the enquiry. State the convention with the figure, or state the use instead (the girth of the article the loop must go round), and the ambiguity disappears before the band is cut.
| You write | It means | When to use it |
|---|---|---|
| Loop circumference 4.0 メートル | One full turn round the load, measured round the closed loop | The band is ordered to wrap a known girth |
| Band length 2.0 メートル, laid flat | The webbing cut length before joining, 円周の半分 | The band is priced and cut by the metre |
| Girth at the pick 1.6 メートル, two picks | The dimension of the load itself, and the number of bands | The safest form on a first order: it needs no convention at all |
The Three Hitches, and What Each One Carries
The same loop works in three arrangements, and the figure on the label only describes the first of them. This is the most common error on an endless band, because all three are rigged without any change to the article.
| 配置 | 要素 | あ 5 t loop gives |
|---|---|---|
| 垂直 – loop hangs, load on one side | 1.0 | 5.0 t |
| 窒息した – round the load and back through itself | 0.8 | 4.0 t |
| バスケット, legs 0-45° | 2.0 | 10.0 t |
| バスケット, legs 45-60° | 1.4 | 7.0 t |
The choke is the arrangement a loop is bought for – it is what grips a pipe, a pole or a drum – and it is also the one that costs 20 % of the figure. So a 4.5 t pipe bundle choked on a 5 t loop is an overload, 余白ではない, and the answer is the next width up rather than a longer band. Where the loop is used as a basket under a bundle, both sides carry and the figure doubles; where it is used vertically, the label figure applies as printed.
One Way Is a Commercial Life, Not a Lower Grade
The word describes the journey, そして他には何もありません: 繊維, 織ります, 幅, 要素, working load limit and marking are specified exactly as for a band used for years, and buying a narrower band or a lower factor because it is only going one way is not a saving – それはリフトから取り出された未評価マージンです. What does change is the record. On a reusable sling the inspection history is the evidence; on a single-trip band there is no history after the lift, それで the print on the band and the packing list carry the whole traceability. The returnable version of the same loop, inspected between lifts and drawn from a store, です single ply endless flat sling.
- Marking is part of the specification, not the paperwork. 使用荷重制限, 長さ, 要素, ディスパッチが実際に使用する参照 – パック番号, an order number, your own part number. That reference is what ties a band on a quay to a line on a packing list in an office.
- 旅行後にも読みやすい, 製造後ではない. 数字はトラックから生き残らなければなりません, コンテナと積載ベイ. 小さい印刷物, low-contrast, or on a face that enters the choke is print that will not be read.
- 2 番目のチャネルとしての色. 1色1パックタイプ, 顧客ごとまたはトン数ごとに、同一のバンドのコンテナを一目で分類できるものに変えます。, and on a made-to-order band it costs nothing.
Counting: One Band per Pick Point, per Pack
One-trip bands are bought in the same arithmetic as the packing, and it is done once because nothing comes back. Count from the pack, not from the tonnage: two picks per pack is two bands, 4点リフトは4つです, and ninety packs at two picks is 180 bands. わざと手数料を加算する – two to five per cent covers the band cut on a sheet edge while the pack is made up – so a shortfall becomes a line on the order instead of a delay at the dock. Where the bands are packed inside a crate, 静止画に縛り付けられるか、テープで束ねられる, the sling becomes a line on the bill of materials: 部品番号, a loop length, a colour and a print that does not change between shipments.
Where a One-Trip Loop Is the Right Order
| Load | What decides the band | Usual build |
|---|---|---|
| 被覆鋼管, 関節内 | Band width is the coating’s only protection from the band doing the lift; measure the two pick positions from an end | 100-150 mm, 4-6 t, 7:1 |
| パイプまたはチューブを束ねたもの | バンドルは負荷です; 各ポジションはパック全体のシェアを持ちます, and the girth sets the loop | 150-200 mm, 6-8 t, 7:1 |
| Steel sheet and plate stacks | カットシートの端が織りバンドに対する刃になります, so the height of the stack and the direction of the band both matter | 100-150 mm, 4-6 t, 7:1 |
| 木材, logs and packs | The arris prints a line into dressed stock and cuts the weave on a narrow band | 125-200 mm, 5-8 t, 7:1 |
| Coils, 石と丸い部分 | A closed loop is the natural form; the choke grips and the width spreads the pressure | 150-300 mm, 6-12 t, 7:1 |
| Machinery and finished assemblies | Nothing metallic touches the load at either end, which on a painted or ground surface is the reason to buy it | 50-125 mm, 2-5 t, 7:1 |
The Single Inspection, and What It Looks At
A one-trip band has one inspection in its life and it happens before the load, 障害が同じ貨物からまだ交換できる場合. 4つのことに注目します, この順序で: the weave where it meets the load (カット, 摩耗, a glazed or pinched face), the join where the loop closes, the label – because an unreadable figure cannot be matched to the pack it was cut for – and what the band has been lying in. グリット, 切りくず, 油と滞留水が接触部に侵入する, and a clean band is the cheapest protection on the list.
鋭利なエッジから保護してください, hot surfaces and welding spatter with a sleeve or a padded protector, never shorten a sling with a knot, never join two slings by knotting them, and never repair webbing by stitching, 溶接または加熱. At the destination the band is disposed of, 保存されていない: a one-trip band that comes home to a rack gets issued again, and its marking then states something that is no longer true.
よくある質問
What is a one way single ply endless polyester webbing sling?
A closed loop of flat woven polyester webbing, one ply thick, joined to itself with no eye, no end and no fitting. It is bought for one journey, supplied with the load and not recovered. The standard range runs 1 へ 12 t on 4 mm webbing, 25 mmから 300 幅 mm, with loop lengths from 0.5 メートルから 100 メートル.
How is the length of an endless sling loop measured?
Two ways, and they differ by about a factor of two: the circumference of the closed loop, and the length of the band laid flat before joining. 規約に名前を付けます, or name the girth of the load instead – that is the form that leaves nothing to interpret.
Is a one-trip endless band weaker than a reusable one?
いいえ. Width follows the working load limit and the factor in exactly the same way, バンドに記載されている数値はリフトに適用される数値です。. What changes is that the band is not recovered, so the print and the packing list carry the whole record of it.
Which safety factor should I order – 5:1, 6:1 または 7:1?
7:1 is the design factor used for general-purpose flat woven webbing slings under European practice and is the usual choice with colour coded bands under BS EN 1492-1. 5:1 is the customary North American figure for synthetic webbing slings and 6:1 彼らの間に座ります. 係数が異なると同じトン数でも、幅が異なる別の製品になります。, したがって、要因は調査にある必要があります.
Can an endless webbing loop be used in a choker hitch?
はい, and it is what a loop is best at – it is how a pipe, a pole or a drum is gripped. 窒息した姿は 0.8 of the vertical figure, それで 5 t loop chokes 4 t. Select the width for the arrangement you will really use, not for the vertical figure on the label.
Single ply or double ply endless sling?
Single ply is the lighter, more flexible and more economical build, and it is the right answer for most lifts up to 12 t and for anything that has to be threaded through a tight space or wrapped round a small diameter. Double ply buys a higher figure at the same width, or a stiffer, wider bearing face – at more weight and more cost per band.
Can the band be printed with our own reference or packed with our product?
Yes to both, and they are usually ordered together. 使用荷重制限, the loop length and your own pack, order or part number can be printed as a production instruction, in the exact string and case you send; the bands can be packed inside a crate, 静止画に縛り付けられるか、テープで束ねられる, labelled per pack and listed on the packing list with the reference that matches the print.
見積もりを依頼する
Send the pack and its travelling mass, the pick points and their spacing, 取り決め, the girth at each pick, the safety factor your market works to, and the reference to print. We come back with the width, ループの長さ, the finished weight and the marking – on a drawing, before the band is cut.
Send your loop specification for a quotation
電話 / 微信: +86 180 6600 2268 | 電子メール: 702461526@qq.com
住所: リフテ工業団地, 台州市, 江蘇省, 中国 | HSコード: 630790