Product Introduction of the mechanical two rope clamshell grabs
The mechanical two rope clamshell grabs is suitable for all kinds of cranes with double lifting device structure, and is mostly used in ports, docks, construction roads and bridges and other industries.
According to the material characteristics, it can be equipped with light, medium, heavy, and super heavy. Suitable for grabbing all kinds of loose accumulations.
Then various cranes. Equipped with two sets of motor reels (i.e. electric hoists), each set of reels leads to a wire rope, one of which serves as the support on the grab balance frame, and the other wire rope passes through the pulleys of the upper and lower beams to form a pulley block, which plays a role in the opening.
Mechanical two rope clamshell grabs are an effective tool for loading and unloading bulk cargo such as yellow sand, coal, ore powder, and bulk fertilizer in various harsh environments.
Mechanical two rope clamshell grabs has a simple structure, a novel opening and closing mechanism, easy to operate, and can accurately complete the opening and closing actions in various states.
Mechanical two rope clamshell grabs adopts a three-dimensional virtual design, and ANSYS software is used for strength analysis and verification. The weight distribution is more reasonable and the service life is longer.
The upper bearing beam of the mechanical two rope clamshell grabs are equipped with lugs, which can be directly connected to the lifting rope shackle of the crane.
Tekniske parametre of the mechanical two rope clamshell grabs
| Type and Size | Bind(m3) | Dead Weigh（t） | Dimensioner (mm) | Sheave Dia.(mm) | Use Height（m） | Steel Rope Dia.(mm) | SWL(t) | ||||
| EN | B | C | D | E | |||||||
| BS3[1.2]1.3A | 1.2(300) | 1.4(4) | 1900 | 2537 | 2488 | 2841 | 1200 | ø400 | 9 | ø17.5 | 3 |
| BS3[1.6]1.4A | 1.6(300) | 1.4(4) | 2100 | 2631 | 2559 | 3040 | 1300 | ø400 | 9.5 | ø17.5 | 3 |
| BS5[1.5]2A | 1.5(350) | 2(3) | 2000 | 2659 | 2667 | 3075 | 1260 | ø445 | 8.5 | ø19.5 | 5 |
| 2(4) | 9.8 | ||||||||||
| BS5[2]2A | 2(350) | 2(4) | 2100 | 2778 | 2818 | 3248 | 1400 | ø445 | 10 | ø19.5 | 5 |
| BS5[2.5]2A | 2.5(350) | 2(3) | 2100 | 2787 | 2715 | 3091 | 1600 | ø445 | 8.5 | ø19.5 | 5 |
| BS5[3]2A | 3(400) | 2(3) | 2300 | 3130 | 2938 | 3362 | 1650 | ø445 | 9 | ø19.5 | 5 |
| BS8[2.6]3.2A | 2.6(300) | 2.6(4) | 2300 | 3038 | 3257 | 3736 | 1800 | ø560 | 11 | ø26 | 8 |
| BS8[3]3.3A | 3(300) | 3.3(4) | 2380 | 3118 | 3287 | 3786 | 1900 | ø560 | 11.5 | ø26 | 8 |
| BS8[3.8]3.5A | 3.8(300) | 3.5(4) | 2550 | 3536 | 3286 | 3733 | 2000 | ø560 | 12 | ø26 | 8 |
| BS8[4.5]3.8A | 4.5(300) | 3.8(3) | 2500 | 3505 | 3503 | 3975 | 2300 | ø560 | 12 | ø26 | 8 |
| BS10[3]4A | 3(300) | 4(4) | 2380 | 3118 | 3287 | 3786 | 1900 | ø560 | 11.5 | ø28 | 10 |
| BS10[5]4A | 5(350) | 4(4) | 2615 | 3605 | 3503 | 3975 | 2400 | ø560 | 12 | ø28 | 10 |
| BS10[6]4A | 6(400) | 4(4) | 2800 | 3814 | 3758 | 4290 | 2150 | ø560 | 12.5 | ø28 | 10 |
| BS16[3.6]6A | 3.6(300) | 6(5) | 2500 | 3313 | 3810 | 4206 | 2100 | ø720 | 13.5 | ø32 | 16 |
| BS16[4]6A | 4(350) | 6(5) | 2500 | 3313 | 3810 | 4206 | 2200 | ø720 | 13.5 | ø32 | 16 |
| BS16[6]6A | 6(350) | 6(4) | 2900 | 3800 | 4249 | 4612 | 2400 | ø720 | 13.5 | ø32 | 16 |
| BS16[10]6A | 10(400) | 6 (3) | 3200 | 4000 | 3938 | 4673 | 2500 | ø650 | 12 | ø28 | 16 |
Sådan vælger du det rigtige greb
- Afklar dit formål:
Før du dykker ned i mulighederne, bedes du afklare dine specifikke krav. Spørg dig selv:
- Hvilke materialer vil du beskæftige dig med? (Bømmerstokke, metalskrot, sten osv.)
- Hvilke opgaver vil grabben udføre? (Læsning, sortering, demontering osv.)
- Hvilken type enhed vil den blive tilsluttet? (Portalkran, traverskran)
- Hvad er vægtfylden af det materiale, du griber?Antallet af grabbens terninger?
Hvad er tonnagen af din kran udstyret med en grab?
Alt efter egenskaberne ved det materiale, der gribes, er grebet normalt opdelt i fire grundtyper: let, medium, tungt og supertungt.
| Den type materiale, der skal gribes | Grib materiale | Kapacitetsvægt (t/m³) |
| Lys | Koks, slagger, korn, kartofler, antracitkalk af mellemkvalitet, cement, jord, grus, ler, knuste mursten mv. | 0.5~1.2 |
| Medium | Tørv, store stykker antracitkul, komprimeret kul, ler, kalksten, grus, salt, grus, mursten, bauxit, flager af jernoxid, cement, sand og mursten i vand mv. | 1.2~2.0 |
| Tung | Kalksten, tung ler, små og mellemstore malme, hård sten, stavformet jernoxid, jernmalm, blykoncentratpulver mv. | 2.0~2.6 |
| Overvægtig | Store malme, store manganmalm, sedimentært agglomereret blymalmpulver mv. | 2.6~3.3 |
- Tilbehørskompatibilitet: Sørg for, at grebet er kompatibelt med eksisterende udstyr.
- Budgetovervejelser: Prisklassen på griberen er forskellig. Afbalancer dit budget baseret på griberens funktion og holdbarhed.
- Kommentarer og forslag: Undersøg online, læs brugeranmeldelser, og søg forslag fra branchefæller.
- Gå til kranproducenten for inspektion og test på stedet før køb: test grebet under virkelige forhold så meget som muligt. Evaluer dets ydeevne, brugervenlighed og overordnede funktionalitet.
Keep in mind that choosing the right grab requires a balance between functionality, safety, and cost.By considering these fac
