- Country of manufactureRussia
Steel rope GOST 2688 - 80 is usually used as a lifting rope on tower and bridge cranes, as well as on ship and truck cranes. Steel ropes GOST 2688 - 80 are used on various hoists and winches of earthmoving and mining machines. In drilling rigs and on cableways, traction and load - bearing ropes are commonly used 2688 steel ropes. In elevator equipment, it is used for friction pulleys and drum winches. The price of the rope from the manufacturer in St. Petersburg in LLC Zeus.
Steel rope GOST 2688 - 80 are made of black or galvanized wire of circular cross section. The wire for the ropes is made of carbon steel, it is galvanized and uncoated (light). They consist of six strands, twisted into one, around the organic core. The core for the cannon is usually made from hemp or synthetics. Each strand consists of 19 wires, twisted in three layers. In the outer layer using wires of different diameters, in order to provide a linear touch (type LK - R), between the strands, and as a result the strength of steel ropes GOST 2688 - 80. Ropes with strands of the LK - R type have great structural strength and wear resistance, so they are used in tense operating conditions.
During the manufacture of the rope, the core is passed through a lubricant that protects it from spoilage and decay, increasing the life of the rope. The grease corresponds to GOST 15037 - 69, it is a mineral oil, which includes copper salts and hydrocarbons. The organic core gives the necessary resilience and elasticity to GOST 2688 steel ropes.
A feature of the rope is the twisting of the parts of the cable. Twisting the wires in the strands is right and left, in the direction of twisting. The direction of the parts when laying, give certain properties to the rope. Steel ropes 2688 made by unilateral lay are more elastic and wear - resistant, but they can unwind under load. Not untwisted ropes are produced by the methods of combined or cross lay.
| Steel rope GOST 2688 - 80 (A1 lubricant) Steel double twist rope
construction 6x19 (1 + 6 + 6/6) + 1 ° C. DIN 3059 - 72
|Diameter mm||Mass of 1000m rope in kg.|
The price of ropes from 1 kilometer is negotiable.
The cost of galvanized rope + 40% of the cost of black.
Technical specifications and manufacturing methods are necessarily prescribed in the marking of the rope. For example, the designation of the rope 12 - GL - VK - Zh - P - N - T - 1770 GOST 2688 - 80, is deciphered as follows: rope with a diameter of 12 mm, GL - rope of cargo, VK - high quality grades, W - galvanized rope and is used in aggressive conditions, P - right lay, H - non - unwinding, - not straightened, T - high accuracy, marking group 1770 according to GOST 2688 - 80.
Steel wire rope rejection
Steel ropes are not allowed for operation if:
- there is a break in the strand or wire in the strands, their number is regulated by the Russian Technical Supervision Authority;
- there are wire breaks at the terminations;
- there are places of accumulation of wire breaks;
- the rope is rusty or there are severe bends on it, as well as internal corrosion;
- the rope has one or more bulging strands;
- there is no grease on the rope;
- there is surface and internal wear;
- tearing the core and reducing the diameter of the rope itself;
- there is undulation, squeezing wires out of a strand, and squeezing strands from a rope, flattening strands, creases;
- the diameter of the rope due to wear is seven percent smaller than the initial size, even if there are no wire breaks and visible damage;
- rope diameter after core damage or due to internal wear and tear, even if there are no wire breaks and visible damage.
Steel wire breakage
Break and displacement of the wires of the cross lay rope.
Wire breakage with wear:
- cross lay rope (fig. a);
- single - sided lay rope (fig. b).
Breakage of wires at the surge block:
- in several strands (Fig. a);
- in 2 strands in combination with wear (Fig. b).
Steel ropes 2688 - 80, designed for lifting people (cargo - ropes), as well as for transferring hot or liquid metal, explosive and toxic substances, must be rejected if the number of wire breaks is half as much.
The diameter of the rope GOST 2688 - 80 and its main parameters should correspond to those indicated in the table
|-||Wire diameter mm||-||-||Mark. Group 1370 (140) N / mm|
|Centre||first layer (inner), mm||second layer (outer), mm||Sectional area, mm||Weight 1000 m rope kg||The tensile strength N, min
|36 procrastination||36 wire
|-||-||all the wires in the cable||whole rope
|3.6 mm||0.26||0.24||0.20||0.26 mm||4.98||48.8||-||-|
|3.8||0.28 m||0.26 m||0.20 m||0.28 m||5.63 mm||55.1 kg||-||-|
|4.1 mm||0.30 mm||0.28 mm||0.22 mm||0.30 mm||6.55 mm||64.1 kg||-||-|
|4,5 mm||0.32 mm||0.30 mm||0.24 mm||0.32 mm||7.55 mm||73.9 kg||-||-|
|4.8 mm||0.34 mm||0.32 mm||0.26 mm||0.34 mm||8.62 mm||84.4 kg||-||-|
|5.1 mm||0.36 mm||0.34 mm||0.28 mm||0.36 mm||9.76 mm||95.5 kg||-||-|
|5,6 mm||0.40 mm||0.38 mm||0.30 mm||0.40 mm||11.90 mm||116.5 kg||-||-|
|6.2 mm||0.45 mm||0.40 mm||0.34 mm||0.45 mm||14.47 mm||141.6 kg||-||-|
|6.9 mm||0.50 mm||0.45 mm||0.38 mm||0.50 mm||18.05 mm||176.6 kg||-||-|
|7.6 mm||0.55 mm||0.50 mm||0.40 mm||0.55 mm||21.57 mm||211.0 kg||-||-|
|8.3 mm||0.60 mm||0.55 mm||0.45 mm||0.60 mm||26.15 mm||256.0 kg||-||-|
|9.1 mm||0.65 mm||0.60 mm||0.50 mm||0.65 mm||31.18 mm||305.0 kg||-||-|
|9.6 mm||0.70 mm||0.65 mm||0.55 mm||0.70 mm||36.66 mm||358.6 kg||-||-|
|11.0 mm||0.80 mm||0.75 mm||0.60 mm||0.80 mm||47.19 mm||461.6 kg||-||-|
|12.0 mm||0.85 mm||0.80 mm||0.65 mm||0.85 mm||53.87 mm||527.0 kg||-||-|
|13.0 mm||0.90 mm||0.85 mm||0.70 mm||0.90 mm||61.00 mm||596.6 kg||83 650 N||71,050 N|
|14.0 mm||1.00 mm||0.95 mm||0.75 mm||1.00 mm||74.40 mm||728.0 kg||102000 N||86700 N|
|15.0 mm||1.10 mm||1.00 mm||0.80 mm||1.10 mm||86.28 mm||844.0 kg||118000 N||1,000,000 N|
|16.5 mm||1.20 mm||1.10 mm||0.90 mm||1.20 mm||104.61 mm||1025.0 kg||143500 N||121500 N|
|18.0 mm||1.30 mm||1.20 mm||1.00 mm||1.30 mm||124.73 mm||1220.0 kg||171000 N||145000 N|
|19.5 mm||1.40 mm||1.30 mm||1.05 mm||1.40 mm||143.61 mm||1405.0 kg||197,000 N||167,000 N|
|21.0 mm||1.50 mm||1.40 mm||1.15 mm||1.50 mm||167.03 mm||1635.0 kg||229000 N||194500 N|
|22.5 mm||1.60 mm||1.50 mm||1.20 mm||1.60 mm||188.78 mm||1850.1 kg||259,000 N||220,000 N|
|24.0 mm||1.70 mm||1.60 mm||1.30 mm||1.70 mm||215.49 mm||2110.0 kg||295500 N||250500 N|
|25.5 mm||1.80 mm||1.70 mm||1.40 mm||1.80 mm||244.00 mm||2390.0 kg||334500 N||284,000 N|
|27.0 mm||1.90 mm||1.80 mm||1.50 mm||1.90 mm||274.31 mm||2685.0 kg||376,000 N||319,000 N|
|28.0 mm||2.00 mm||1.90 mm||1.50 mm||2.00 mm||297.63 mm||2910.0 kg||408,000 N||346,500 N|
|30.5 mm||2.20 mm||2.10 mm||1.60 mm||2.20 mm||356.72 mm||3490.0 kg||489,000 N||415500 N|
|32.0 mm||2.30 mm||2.20 mm||1.70 mm||2.30 mm||393.06 mm||3845.0 kg||539,000 N||458,000 N|
|33.5 mm||2.40 mm||2.30 mm||1.80 mm||2.40 mm||431.18 mm||4220.0 kg||591 500 N||502500 N|
|37.0 mm||2.60 mm||2,50 mm||2.00 mm||2.60 mm||512.79 mm||5015.0 kg||703500 N||597,500 N|
|39.5 mm||2.80 mm||2.60 mm||2.20 mm||2.80 mm||586.59 mm||5740.0 kg||804500 N||684,000 N|
|42.0 mm||3.00 mm||2.80 mm||2.30 mm||3.00 mm||668.12 mm||6535.0 kg||916 500 N||779,000 N|
|44.5 mm||3.20 mm||3.00 mm||2.40 mm||3.20 mm||755.11 mm||7385.0 kg||1,035,000 N||880 500 N|
|47.5 mm||3.40 mm||3.20 mm||2.60 mm||3.40 mm||861.98 mm||8430.0 kg||1180000 N||1,000,000 N|
|51.0 mm||3.60 mm||3.40 mm||2.80 mm||3.60 mm||976.03 mm||9545.0 kg||1,335,000 N||1,135,000 N|
|56.0 mm||4.00 mm||3.80 mm||3.00 mm||4.00 mm||1190.53 mm||11 650.0 kg||1630000 N||1385000 N
- Packing tape
- Packing tool
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- Slings are textile
- Steel rope
- Big bags
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Price: Formed on each batch of goods in stock
Terms of delivery: (FCA, EXW and others as agreed with the customer)
Terms of payment: Prepayment, partial payment, letter of credit